[Asm] 纯文本查看 复制代码
目录:
一、线上买菜场景简述
二、风控在业务中的应用
三、产品整体框架
四、初始化分析
五、反爬签名流程
六、设备指纹分析
七、算法还原
八、总结
一、线上买菜场景简述
1、分析说明
[Asm] 纯文本查看 复制代码
1. 产品基本信息
产品名称：ppp买菜(匿称)；
产品版本：5.25.0；
Slogan：30分钟送达，新鲜送得快；
所处行业：生鲜电商;
2. 设备环境
机型：iPhone 7；
系统：IOS 13.4；
工具: IDA7.6 Frida;
2、简单流程梳理一次完整的线上买菜过程都经过了哪些环节呢？大致流程是从供应商送货到仓或到店，再由零售商售卖，最终到用户手里，这样便完成了一次买菜，如图1-1所示：
买菜场景流程描述 .png (258.65 KB, 下载次数: 0)
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2021-11-2 19:59 上传
图1-1上图的业务流程从供应商送货到仓或到店，再由零售商售卖，最终可以多种方式到用户手里，完成了一次买菜的过程。二、反作弊风控在业务中的应用1、APP推广拉新还记得在2020年的下半年时候，当时生鲜电商的社区团购大战非常火爆，各种买菜APP蜂拥而入，砸钱、抢流量，你争我抢玩得不亦乐乎。
不夸张地说，我记得当时最常见的情形是，你随便在小区溜达一圈，就能碰见穿着各种颜色制服的地推工作人员，追赶着小哥哥小姐姐下载APP给送福利，下载完APP后注册登录APP买菜。
2、存在的风险烧大把的钱把流量吸引过来，这个过程中会有黑灰产人员通过非法的技术手段，伪造新增用户并从中获利的行为，如果只是把流量吸引过来不考虑质量的话，会增加大量的企业无效成本。怎么识别出有效的流量与虚假流量，需要一个完善的风控体系与制定有效的策略找出高质量流量，然后把这些流量留下来。
接下来为了提高用户的购买频率，实现反复转化，就出现了各种红包、优惠券活动吸引用户提高打开APP频率与购买频率。这个环节中就会有各种薅羊毛的人群出现，同样需要完善的风控体系与制定有效的策略来最大程度地甄别风险。
活动流程大致如图2-1所示:
拉新促活流程描述.png (98.14 KB, 下载次数: 0)
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2021-11-2 20:00 上传
图2-1三、产品整体框架3.1、从初化到获取设备指纹整个框架如图3-1与3-2所示：
买菜设备风控始化流程图.png (385.22 KB, 下载次数: 0)
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2021-11-2 20:01 上传
图3-1
设备指纹生成流程图.png (260.25 KB, 下载次数: 0)
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2021-11-2 20:01 上传
图3-2
下面将围绕框架进行详细分析与算法还原。
四、初始化分析4.1、代码混淆在正式进行代码分析之前还是很必要交代一下我分析过程中发现的代码混淆，方便后继分析代码做准备。反F5：大致模板如下：[Asm] 纯文本查看 复制代码__text:0000000103743850 FF C3 00 D1 SUB SP, SP, #0x30 ; '0'
__text:0000000103743854 E0 7B 01 A9 STP X0, X30, [SP,#0x10]
__text:0000000103743858 05 00 00 94 BL sub_10374386C ; 跳到方法返回值
__text:000000010374385C 86 A5 23 4F SSHLL2 V6.2D, V12.4S, #3
__text:0000000103743860 B1 FB A7 9B UMSUBL X17, W29, W7, X30
__text:0000000103743864 D2 76 2F F9 STR X18, [X22,#0x5EE8]
__text:0000000103743868 7F 16 04 FA DCB 0x7F, 0x16, 4, 0xFA ; 混淆数据
__text:000000010374386C
__text:000000010374386C
__text:000000010374386C
__text:000000010374386C
__text:000000010374386C
__text:000000010374386C sub_10374386C ;
__text:000000010374386C 80 01 00 10 ADR X0, dword_10374389C ;方法返回值
__text:0000000103743870 FE 03 00 AA MOV X30, X0 ; 方法返回值给返回寄存器
__text:0000000103743874 FF C3 00 91 ADD SP, SP, #0x30 ; '0'
__text:0000000103743878 C0 03 5F D6 RET
[color=]原理是通过动态赋值给x30实现跳转，X30链接寄存器(LR)，用于保存子程序的返回地址。通篇都是这样的代码混淆方式，基本不怎么影响分析或脚本直接清除。
[color=]动态调试时如图4-1所示：
代码混淆.jpg (192.18 KB, 下载次数: 0)
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2021-11-2 20:03 上传
图4-1
字符串加解密:
[Asm] 纯文本查看 复制代码
__text:000000010180C0C0 DecStrng_sub_1036F80C0
__text:000000010180C0C0
__text:000000010180C0C0 7F 04 00 71 CMP W3, #1
__text:000000010180C0C4 0B 06 00 54 B.LT locret_10180C184
__text:000000010180C0C8 E9 03 03 2A MOV W9, W3
__text:000000010180C0CC 7F 40 00 71 CMP W3, #0x10
__text:000000010180C0D0 43 04 00 54 B.CC loc_10180C158
__text:000000010180C0D4 08 00 09 8B ADD X8, X0, X9
__text:000000010180C0D8 2A 00 09 8B ADD X10, X1, X9
__text:000000010180C0DC 5F 01 00 EB CMP X10, X0
__text:000000010180C0E0 00 81 41 FA CCMP X8, X1, #0, HI
__text:000000010180C0E4 A8 03 00 54 B.HI loc_10180C158
__text:000000010180C0E8 2A 6D 7C 92 AND X10, X9, #0xFFFFFFF0
__text:000000010180C0EC 68 04 03 0B ADD W8, W3, W3,LSL#1
__text:000000010180C0F0 08 01 02 0B ADD W8, W8, W2
__text:000000010180C0F4 6B 0C 00 12 AND W11, W3, #0xF
__text:000000010180C0F8 6B 09 0B 4B SUB W11, W11, W11,LSL#2
__text:000000010180C0FC 08 01 0B 0B ADD W8, W8, W11
__text:000000010180C100 40 0C 01 0E DUP V0.8B, W2
__text:000000010180C104 8B 8C 00 D0 ADRP X11, #qword_10299E470@PAGE
__text:000000010180C108 61 39 42 FD LDR D1, [X11,#qword_10299E470@PAGEOFF]
__text:000000010180C10C 00 84 21 0E ADD V0.8B, V0.8B, V1.8B
__text:000000010180C110 2B 20 00 91 ADD X11, X1, #8
__text:000000010180C114 0C 20 00 91 ADD X12, X0, #8
__text:000000010180C118 01 E7 00 0F MOVI V1.8B, #0x18
__text:000000010180C11C 02 E6 01 0F MOVI V2.8B, #0x30 ; '0'
__text:000000010180C120 ED 03 0A AA MOV X13, X10
__text:000000010180C124
__text:000000010180C124 loc_10180C124
__text:000000010180C124 03 84 21 0E ADD V3.8B, V0.8B, V1.8B
__text:000000010180C128 64 95 7F 6D LDP D4, D5, [X11,#-8]
__text:000000010180C12C 84 1C 20 2E EOR V4.8B, V4.8B, V0.8B
__text:000000010180C130 A3 1C 23 2E EOR V3.8B, V5.8B, V3.8B
__text:000000010180C134 84 8D 3F 6D STP D4, D3, [X12,#-8]
__text:000000010180C138 00 84 22 0E ADD V0.8B, V0.8B, V2.8B
__text:000000010180C13C 6B 41 00 91 ADD X11, X11, #0x10
__text:000000010180C140 8C 41 00 91 ADD X12, X12, #0x10
__text:000000010180C144 AD 41 00 F1 SUBS X13, X13, #0x10
__text:000000010180C148 E1 FE FF 54 B.NE loc_10180C124
__text:000000010180C14C 5F 01 09 EB CMP X10, X9
__text:000000010180C150 81 00 00 54 B.NE loc_10180C160
__text:000000010180C154 0C 00 00 14 B locret_10180C184
__text:000000010180C158
__text:000000010180C158
__text:000000010180C158 loc_10180C158
__text:000000010180C158
__text:000000010180C158 0A 00 80 D2 MOV X10, #0
__text:000000010180C15C E8 03 02 AA MOV X8, X2
__text:000000010180C160
__text:000000010180C160 loc_10180C160
__text:000000010180C160 2B 00 0A 8B ADD X11, X1, X10
__text:000000010180C164 0C 00 0A 8B ADD X12, X0, X10
__text:000000010180C168 29 01 0A CB SUB X9, X9, X10
__text:000000010180C16C
__text:000000010180C16C loc_10180C16C
__text:000000010180C16C 6A 15 40 38 LDRB W10, [X11],#1
__text:000000010180C170 4A 01 08 4A EOR W10, W10, W8
__text:000000010180C174 8A 15 00 38 STRB W10, [X12],#1
__text:000000010180C178 08 0D 00 11 ADD W8, W8, #3
__text:000000010180C17C 29 05 00 F1 SUBS X9, X9, #1
__text:000000010180C180 61 FF FF 54 B.NE loc_10180C16C
__text:000000010180C184
__text:000000010180C184 locret_10180C184
__text:000000010180C184
__text:000000010180C184 C0 03 5F D6 RET
[color=]通用的解密字符串，同样可以用脚本跑一遍就可以解密出来。
采集设备信息跳转：[Asm] 纯文本查看 复制代码__text:0000000101864F1C
__text:0000000101864F1C E0 7B 7B A9 LDP X0, X30, [SP,#-0x50] ; 获取m设备信息跳转
__text:0000000101864F20 09 2D 00 10 ADR X9, unk_1018654C0
__text:0000000101864F24 1F 20 03 D5 NOP
__text:0000000101864F28 28 79 A8 B8 LDRSW X8, [X9,X8,LSL#2]
__text:0000000101864F2C 08 01 09 8B ADD X8, X8, X9
__text:0000000101864F30 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101864F34 00 01 1F D6 BR X8 ; 获取m设备信息跳转对应的方法
[color=]只要在上面地方下好断点就能分析对应的采集设备信息的方法。
4.2、解密资源文件获取PIC生成密钥:获取APP Bundle ID:[Asm] 纯文本查看 复制代码com.baobaoaichi.imaicai解析Info.plist读取ss中的值:[Asm] 纯文本查看 复制代码885B25AAFD830249B81AF699187E5752解密常量字符串:[Asm] 纯文本查看 复制代码WU@TEN组合字符串，BundleID+常量字符串(WU@TEN)+Info.plist中的ss值:[Asm] 纯文本查看 复制代码com.baobaoaichi.imaicaiWU@TEN885B25AAFD830249B81AF699187E5752 计算组合后字符的hmac值:[Asm] 纯文本查看 复制代码__text:0000000101B834F8 hamc_256_loc_1052974F8
__text:0000000101B834F8 FF 43 01 D1 SUB SP, SP, #0x50 ; 'P'
__text:0000000101B834FC E0 7B 02 A9 STP X0, X30, [SP,#0x20]
__text:0000000101B83500 08 00 00 94 BL sub_101B83520
__text:0000000101B83504 D9 92 B2 98 LDRSW X25, loc_101AE875C
__text:0000000101B83508 B2 19 08 BD STR S18, [X13,#0x818]
__text:0000000101B8350C 1B 50 F0 B7 TBNZ X27, #0x3E, loc_101B83F0C ; '>'
__text:0000000101B8350C
__text:0000000101B83510 81 05 6D 1B+DCQ 0x440C4BA91B6D0581, 0x75CE544974E8B95A
__text:0000000101B83520
__text:0000000101B83520
__text:0000000101B83520
__text:0000000101B83520
__text:0000000101B83520 sub_101B83520
__text:0000000101B83520 40 02 00 10 ADR X0, loc_101B83568
__text:0000000101B83524 FE 03 00 AA MOV X30, X0
__text:0000000101B83528 FF 43 01 91 ADD SP, SP, #0x50 ; 'P'
__text:0000000101B8352C C0 03 5F D6 RET
__text:0000000101B8352C ; End of function sub_101B83520
__text:0000000101B8352C
__text:0000000101B8352C
__text:0000000101B83530 BA C7 78 F8+DCQ 0x5AC568B8F878C7BA, 0x9A5A15BB2AA24258, 0x748421186E938E6D, 0x53C1BE1404BC0FB9
__text:0000000101B83530 B8 68 C5 5A+DCQ 0x3C6162795B16F2AB, 0x3F6EEF1BA5E72F0, 0xBF4042773B6E82C5
__text:0000000101B83568
__text:0000000101B83568
__text:0000000101B83568 loc_101B83568 ; DATA XREF: sub_101B83520↑o
__text:0000000101B83568 E0 7B 7D A9 LDP X0, X30, [SP,#-0x30]
__text:0000000101B8356C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B83570 20 00 80 D2 MOV X0, #1
__text:0000000101B83574 04 00 00 14 B loc_101B83584
__text:0000000101B835B0 E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:0000000101B835B4 FF 43 01 D1 SUB SP, SP, #0x50 ; 'P'
__text:0000000101B835B8 F4 4F 03 A9 STP X20, X19, [SP,#0x30]
__text:0000000101B835BC FD 7B 04 A9 STP X29, X30, [SP,#0x40]
__text:0000000101B835C0 FD 03 01 91 ADD X29, SP, #0x40 ; '@'
__text:0000000101B835C4 F3 03 08 AA MOV X19, X8
__text:0000000101B835C8 88 B9 00 90 ADRP X8, #___stack_chk_guard_ptr@PAGE
__text:0000000101B835CC 08 FD 43 F9 LDR X8, [X8,#___stack_chk_guard_ptr@PAGEOFF]
__text:0000000101B835D0 08 01 40 F9 LDR X8, [X8]
__text:0000000101B835D4 A8 83 1E F8 STUR X8, [X29,#-0x18]
__text:0000000101B835D8 00 E4 00 4F MOVI V0.16B, #0
__text:0000000101B835DC E0 83 81 3C STUR Q0, [SP,#0x18]
__text:0000000101B835E0 E0 83 80 3C STUR Q0, [SP,#8]
__text:0000000101B835E4 E2 23 00 91 ADD X2, SP, #8
__text:0000000101B835E8 B6 EB FF 97 BL hmac256_loc_1052924C0 ; x0:组合的字符串com.baobaoaichi.imaicaiWU@TEN885B25AAFD830249B81AF699187E5752
__text:0000000101B835E8 ; x1:长度,x2:返回值
__text:0000000101B835EC E0 23 00 91 ADD X0, SP, #8
__text:0000000101B835F0 E1 03 1B 32 MOV W1, #0x20 ; ' '
__text:0000000101B835F4 E8 03 13 AA MOV X8, X19
__text:0000000101B835F8 E3 FD FF 97 BL Hex2String_loc_105296D84
__text:0000000101B835FC A8 83 5E F8 LDUR X8, [X29,#-0x18]
__text:0000000101B83600 89 B9 00 90 ADRP X9, #___stack_chk_guard_ptr@PAGE
__text:0000000101B83604 29 FD 43 F9 LDR X9, [X9,#___stack_chk_guard_ptr@PAGEOFF]
__text:0000000101B83608 29 01 40 F9 LDR X9, [X9]
__text:0000000101B8360C 3F 01 08 EB CMP X9, X8
__text:0000000101B83610 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B83614 A1 FC FF 54 B.NE loc_101B835A8
__text:0000000101B83618 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B8361C 60 00 00 18 LDR W0, =0
__text:0000000101B83620 D9 FF FF 17 B loc_101B83584计算后的值:[Asm] 纯文本查看 复制代码39 D3 B7 71 76 74 09 F5 E7 4F 4B 57 9B 86 8A 5C 01 92 13 18 61 C1 79 1C
83 3B 5C 95 E9 9C 41 2B转换成字符串:[Asm] 纯文本查看 复制代码39d3b771767409f5e74f4b579b868a5c0192131861c1791c833b5c95e99c412b
[color=]读取mt_security
[Asm] 纯文本查看 复制代码__text:0000000101B202CC Read_mt_security_loc_1052342CC
__text:0000000101B202CC E0 FB 3E A9 STP X0, X30, [SP,#-0x18]
__text:0000000101B202D0 09 00 00 94 BL sub_101B202F4
__text:0000000101B202D0
__text:0000000101B202D4 C8 94 EB B2 DCD 0xB2EB94C8
__text:0000000101B202D8 93 66 85 65+DCQ 0xACCCADAF65856693, 0xA99940F0FB589042, 0x4DC4974493C6E96
__text:0000000101B202F0 DF D2 CB 41 DCB 0xDF, 0xD2, 0xCB, 0x41
__text:0000000101B202F4
__text:0000000101B202F4
__text:0000000101B202F4
__text:0000000101B202F4
__text:0000000101B202F4 sub_101B202F4 const&,std::function)+4405F4↑p
__text:0000000101B202F4 E0 00 00 10 ADR X0, loc_101B20310
__text:0000000101B202F8 FE 03 00 AA MOV X30, X0
__text:0000000101B202FC C0 03 5F D6 RET
__text:0000000101B202FC ; End of function sub_101B202F4
__text:0000000101B202FC
__text:0000000101B202FC
__text:0000000101B20300 0F 49 C1 AC+DCQ 0x6E3E564CACC1490F, 0xB1B6C5A72F9066B1
__text:0000000101B20310
__text:0000000101B20310
__text:0000000101B20310 loc_101B20310 ; DATA XREF: sub_101B202F4↑o
__text:0000000101B20310 E0 FB 7E A9 LDP X0, X30, [SP,#-0x18]
__text:0000000101B20314 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B20318 60 00 00 18 LDR W0, =1
__text:0000000101B2031C 04 00 00 14 B loc_101B2032C读取后数据(部分):[Asm] 纯文本查看 复制代码0000000104899800 89 50 4E 47 0D 0A 1A 0A 00 00 00 0D 49 48 44 52 .PNG........IHDR
0000000104899810 00 00 00 3C 00 00 00 3C 08 06 00 00 00 3A FC D9 ...
解析图片:
[Asm] 纯文本查看 复制代码
__int64 __fastcall sub_1036B61F0(
_QWORD *a1,
unsigned int *a2,
unsigned int *a3,
_DWORD *a4,
unsigned __int64 a5,
unsigned __int64 a6)
{
v8 = a4;
v144 = 0x7BB1713F51A90031LL;
*a1 = 0LL;
*a3 = 0;
*a2 = 0;
result = sub_1036B52D8(a2, a3, a4, a5, a6);
v8[126] = result;
if ( (_DWORD)result )
return result;
v13 = *a2;
v14 = *a3;
v15 = (int)v8[52];
v127 = v8 + 52;
v16 = v8[53];
if ( (unsigned int)v15 > 6 )
v17 = 0;
else
v17 = dword_104824040[v15];
v18 = v17 * v16;
v19 = v8[39];
v20 = (int)v8[38];
if ( (unsigned int)v20 > 6 )
v21 = 0;
else
v21 = dword_104824040[v20];
if ( v18 6 )
v23 = 0;
else
v23 = dword_104824040[v20];
v24 = v23 * v19;
}
else
{
if ( (unsigned int)v15 > 6 )
v22 = 0;
else
v22 = dword_104824040[v15];
v24 = v22 * v16;
}
v25 = v8 + 126;
if ( (_DWORD)v13 && v14 * v13 && 8 * v14 * v13 / (unsigned __int64)(v14 * v13) != 8
|| (v26 = v24 * (unsigned __int64)((unsigned int)v13 >> 3) + ((v24 * (unsigned __int64)(v13 & 7) + 7) >> 3) + 5,
v26 * v14 / v26 != v14) )
{
result = 92LL;
goto LABEL_97;
}
v124 = a3;
v125 = a2;
v27 = 0LL;
v28 = 0LL;
v128 = 0LL;
v130 = v8 + 126;
v120 = v8 + 48;
v29 = a5 + 33;
v121 = v8 + 2;
v122 = a1;
v126 = 1;
v123 = v8;
while ( 1 )
{
if ( v29 a6) )
{
if ( v8[12] )
goto LABEL_107;
v46 = 30;
goto LABEL_104;
}
v31 = bswap32(*(_DWORD *)v29);
if ( (v31 & 0x80000000) != 0 )
{
if ( v8[12] )
goto LABEL_107;
v46 = 63;
goto LABEL_104;
}
v32 = v31;
if ( v30 + v31 > a6 || v29 + v31 + 12 = v35 )
v37 = (3 * v35) >> 1;
else
v37 = v27 + v31;
v38 = v37;
v39 = realloc(v28, v37);
if ( !v39 )
{
v98 = 83;
goto LABEL_171;
}
v28 = v39;
v36 = v38;
v8 = v123;
}
v128 = v36;
if ( v31 )
{
do
{
v40 = *v34++;
*((_BYTE *)v28 + v27++) = v40;
--v32;
}
while ( v32 );
}
else
{
LODWORD(v32) = 0;
}
v126 = 3;
goto LABEL_46;
}
v46 = 95;
goto LABEL_103;
}
if ( (unsigned int)sub_1036B3A50(v29, "IEND") )
{
LODWORD(v32) = 1;
goto LABEL_43;
}
if ( !(unsigned int)sub_1036B3A50(v29, "PLTE") )
break;
v42 = sub_1036B55E4(v127, v29 + 8, v31);
v25 = v130;
*v130 = v42;
if ( v42 )
goto LABEL_107;
LODWORD(v32) = 0;
v126 = 2;
LABEL_62:
v35 = v27;
LABEL_47:
if ( !v8[10] && (unsigned int)crc32_sub_1036B3AC8(v29) )
{
*v25 = 57;
LABEL_106:
v27 = v35;
goto LABEL_107;
}
if ( (_DWORD)v32 )
goto LABEL_106;
v41 = *v25;
v27 = v35;
LABEL_51:
v29 = sub_1036B3B20(v29);
if ( v41 )
goto LABEL_107;
}
if ( (unsigned int)sub_1036B3A50(v29, "tRNS") )
{
v43 = sub_1036B56DC(v127, v29 + 8, v31);
LABEL_60:
v25 = v130;
*v130 = v43;
if ( v43 )
goto LABEL_107;
LODWORD(v32) = 0;
goto LABEL_62;
}
if ( (unsigned int)sub_1036B3A50(v29, "bKGD") )
{
v43 = sub_1036B57D0(v120, v29 + 8, v31);
goto LABEL_60;
}
if ( (unsigned int)sub_1036B3A50(v29, "tEXt") )
{
if ( !v8[14] )
goto LABEL_72;
v43 = sub_1036B58DC(v120, v29 + 8, v31);
goto LABEL_60;
}
if ( (unsigned int)sub_1036B3A50(v29, "zTXt") )
{
if ( !v8[14] )
goto LABEL_72;
v43 = sub_1036B5A00(v120, v121, v29 + 8, v31);
goto LABEL_60;
}
if ( (unsigned int)sub_1036B3A50(v29, "iTXt") )
{
if ( !v8[14] )
{
LABEL_72:
LODWORD(v32) = 0;
goto LABEL_43;
}
v43 = sub_1036B5BB8(v120, v121, v29 + 8, v31);
goto LABEL_60;
}
if ( (unsigned int)sub_1036B3A50(v29, "tIME") )
{
if ( v31 == 7 )
{
LODWORD(v32) = 0;
v8[82] = 1;
v8[83] = *(unsigned __int8 *)(v29 + 9) | (*(unsigned __int8 *)(v29 + 8) > 3;
v50 = v127;
v51 = sub_1036B79FC((unsigned int)(v47 + 7) >> 3, v49, v127);
v52 = v47 + 3;
if ( (unsigned int)v47 >= 5 )
v51 += sub_1036B79FC(v52 >> 3, v49, v127);
v53 = sub_1036B79FC(v52 >> 2, (v48 + 3) >> 3, v127) + v51;
v54 = v47 + 1;
if ( (unsigned int)v47 >= 3 )
v53 += sub_1036B79FC(v54 >> 2, (v48 + 3) >> 2, v127);
v55 = sub_1036B79FC(v54 >> 1, (v48 + 1) >> 2, v127) + v53;
if ( (unsigned int)v47 >= 2 )
v55 += sub_1036B79FC((unsigned int)v47 >> 1, (v48 + 1) >> 1, v127);
v56 = sub_1036B79FC(v47, v48 >> 1, v127) + v55;
v25 = v130;
}
else
{
v50 = v127;
v56 = sub_1036B79FC(*v125, *v124, v127);
}
if ( !*v25 )
{
if ( !v56 )
goto LABEL_120;
v57 = realloc(0LL, v56);
if ( !v57 )
{
v60 = 83;
goto LABEL_130;
}
v133 = v56;
v131 = v57;
if ( !*v25 )
{
LABEL_120:
v58 = (__int64 (__fastcall *)(void **, __int64 *, void *, unsigned __int64, _DWORD *))*((_QWORD *)v8 + 2);
if ( v58 )
v59 = v58(&v131, &v132, v28, v27, v121);
else
v59 = sub_1036B389C(&v131, &v132, v28, v27, v121);
if ( v132 != v56 && v59 == 0 )
v60 = 91;
else
v60 = v59;
LABEL_130:
*v25 = v60;
}
}
free(v28);
v62 = v125;
if ( !*v25 )
{
v63 = *v125;
v64 = *v124;
v66 = v8[52];
v65 = v8[53];
v67 = sub_1036B3D08(*v125, *v124, v66, v65);
v68 = malloc(v67);
*v122 = v68;
if ( v68 )
{
if ( v67 )
{
for ( i = 0LL; i != v67; ++i )
{
v68 = 0;
v68 = (_BYTE *)*v122;
}
v63 = *v125;
v64 = *v124;
v66 = v8[52];
v65 = v8[53];
}
v70 = (char *)v131;
if ( v66 > 6 )
v71 = 0;
else
v71 = dword_104824040[v66];
v73 = (unsigned int)(v71 * v65);
if ( (_DWORD)v73 )
{
if ( v8[50] )
{
v129 = v64;
sub_1036B7E10(v138, v137, v136, v135, v134, v63, v64, v73);
for ( j = 0LL; j != 7; ++j )
{
v75 = &v70[v135[j]];
v76 = v138[j];
v77 = (unsigned int)v137[j];
v72 = sub_1036B7A4C(v75, &v70[v136[j]], v76, v77, v73);
if ( v72 )
{
v97 = 0;
goto LABEL_186;
}
if ( (unsigned int)v73 > 3] >> (~(_BYTE)v108 & 7);
++v108;
if ( (v110 & 1) != 0 )
v68[v107 >> 3] |= (v110 & 1) > 3;
do
{
v80 = v142[v78];
if ( v80 )
{
v81 = 0;
v82 = 0;
v83 = (unsigned int)v143[v78];
do
{
if ( (_DWORD)v83 )
{
v84 = 0LL;
v85 = dword_104823FA4[v78];
v86 = dword_104823FC0[v78] + v63 * (dword_104823FF8[v78] + dword_104823FDC[v78] * v82);
v87 = &v70[v139[v78]];
v88 = v81;
do
{
if ( (_DWORD)v79 )
{
v89 = &v68[v79 * v86];
v90 = &v87[v79 * v88];
v91 = (unsigned int)v73 >> 3;
do
{
v92 = *v90++;
*v89++ = v92;
--v91;
}
while ( v91 );
}
++v84;
v86 += v85;
++v88;
}
while ( v84 != v83 );
}
++v82;
v81 += v83;
}
while ( v82 != v80 );
}
++v78;
}
while ( v78 != 7 );
}
v72 = 0;
v97 = 1;
LABEL_186:
v50 = v127;
v62 = v125;
if ( v97 )
LABEL_187:
v72 = 0;
}
else
{
v93 = v64;
v94 = v73 * v63;
v95 = (v73 * v63 + 7) & 0xFFFFFFF8;
if ( (unsigned int)v73 > 7 || v94 == v95 )
{
v72 = sub_1036B7A4C(v68, v131, v63, v93, v73);
if ( !v72 )
goto LABEL_187;
}
else
{
v118 = v63;
v119 = v93;
v72 = sub_1036B7A4C(v131, v131, v118, v93, v73);
if ( !v72 )
{
sub_1036B7D74(v68, v70, v94, v95, v119);
goto LABEL_187;
}
}
}
}
else
{
v72 = 31;
}
}
else
{
v72 = 83;
}
v25 = v130;
*v130 = v72;
}
v132 = 0LL;
v133 = 0LL;
free(v131);
result = (unsigned int)*v25;
if ( !(_DWORD)result )
{
if ( v8[13] )
{
if ( (unsigned int)sub_1036B4698(v8 + 38, v50) )
return 0LL;
v111 = (_BYTE *)*v122;
v112 = v8[38];
if ( (v112 | 4) != 6 && v8[39] != 8 )
return 56LL;
v113 = *v62;
v114 = *v124;
v115 = sub_1036B3D08(*v62, *v124, v112, v8[39]);
v116 = malloc(v115);
*v122 = v116;
if ( v116 )
v117 = sub_1036B4148(v116, v111, v8 + 38, v50, v113, v114);
else
v117 = 83;
*v25 = v117;
free(v111);
return (unsigned int)*v25;
}
result = sub_1036B3C4C(v8 + 38, v50);
LABEL_97:
*v25 = result;
}
return result;
}
解析返回PIC数据(部分):
[Asm] 纯文本查看 复制代码
00000001050CDA00 2E 50 49 43 90 01 00 00 10 02 00 00 AC 02 00 00 .PIC............
00000001050CDA10 01 A3 A0 68 E4 0A 6B 23 00 00 00 00 E2 D2 82 82 ...h...#........
00000001050CDA20 4F 62 7C 40 82 53 99 C0 4F 26 5B 8E E0 2C 66 D5 Ob|@.S...&[.....
00000001050CDA30 8A A6 9D 5D 6D 32 E7 CD 1A AC C0 10 93 40 49 3E ...]m2.......@I>
00000001050CDA40 C0 94 99 F5 F6 8C 6D DB 76 67 81 E7 4E BC 73 92 .........g....s.
00000001050CDA50 4C 31 D4 CD E5 5D AC 48 D0 64 1E D7 5B 2B BA 2E L1.....H.....+..
00000001050CDA60 8C EC 98 E9 9B 4A 0D 3D 81 45 FD 58 49 25 94 47 .....J.=.E.XI%.G
00000001050CDA70 62 61 48 45 4A B9 43 87 59 E9 8C 6D D5 EE C2 B7 baHEJ.C.Y.....·
00000001050CDA80 0C D0 29 4C 10 D6 98 CE 7B E1 90 A9 40 4D 9E 3F ...L.....ᐩ @M.?
00000001050CDA90 28 D1 8E ED 8E 14 8B AD CB 21 CB 0F FF 6D 29 1D (ю ..........m).
00000001050CDAA0 A6 88 9B 84 E9 38 DC 5F E8 B1 06 14 2A 39 90 5B ......._....*9.
[
4.3、解密PIC数据生成AES KEY将上面计算得到的hmac值转换成16进制:[Asm] 纯文本查看 复制代码39d3b771767409f5e74f4b579b868a5c0192131861c1791c833b5c95e99c412b
__text:0000000101B83748 loc_101B83748
__text:0000000101B83748 F7 B3 00 78 STURH W23, [SP,#0xB]
__text:0000000101B8374C C8 02 40 39 LDRB W8, [X22]
__text:0000000101B83750 E8 37 00 39 STRB W8, [SP,#0xD]
__text:0000000101B83754 C8 06 40 39 LDRB W8, [X22,#1]
__text:0000000101B83758 E8 3B 00 39 STRB W8, [SP,#0xE]
__text:0000000101B8375C FF 3F 00 39 STRB WZR, [SP,#0xF]
__text:0000000101B83760 E0 2F 00 91 ADD X0, SP, #0xB
__text:0000000101B83764 01 00 80 D2 MOV X1, #0
__text:0000000101B83768 02 00 80 52 MOV W2, #0
__text:0000000101B8376C D3 51 42 94 BL _strtol
__text:0000000101B83770 20 17 00 38 STRB W0, [X25],#1
__text:0000000101B83774 D6 0A 00 91 ADD X22, X22, #2
__text:0000000101B83778 18 07 00 F1 SUBS X24, X24, #1
__text:0000000101B8377C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B83780 41 FE FF 54 B.NE loc_101B83748
__text:0000000101B83784 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B83788 A0 00 00 18 LDR W0, =1
__text:0000000101B8378C C4 FF FF 17 B loc_101B8369C转换后:[Asm] 纯文本查看 复制代码0000000281E86790 39 D3 B7 71 76 74 09 F5 E7 4F 4B 57 9B 86 8A 5C
0000000281E867A0 01 92 13 18 61 C1 79 1C 83 3B 5C 95 E9 9C 41 2B取转换后的的前0x10字节生成最终的AES KEY[Asm] 纯文本查看 复制代码__text:0000000101B2170C GenAesKey_loc_102FD570C
__text:0000000101B2170C 8D 69 68 38 LDRB W13, [X12,X8] ; 生成解密PIC的AES KEY
__text:0000000101B21710 AE 2D 1C 11 ADD W14, W13, #0x70B
__text:0000000101B21714 CF 09 C9 1A UDIV W15, W14, W9
__text:0000000101B21718 EE B9 09 1B MSUB W14, W15, W9, W14
__text:0000000101B2171C AF 0D 2F 11 ADD W15, W13, #0xBC3
__text:0000000101B21720 F0 09 CA 1A UDIV W16, W15, W10
__text:0000000101B21724 0F BE 0A 1B MSUB W15, W16, W10, W15
__text:0000000101B21728 EE 39 09 1B MADD W14, W15, W9, W14
__text:0000000101B2172C CE 05 0E 0B ADD W14, W14, W14,LSL#1
__text:0000000101B21730 CE 09 00 11 ADD W14, W14, #2
__text:0000000101B21734 6E 49 6E 38 LDRB W14, [X11,W14,UXTW] ; 查表
__text:0000000101B21738 AD 01 0E 0A AND W13, W13, W14
__text:0000000101B2173C AD 19 1F 12 AND W13, W13, #0xFE
__text:0000000101B21740 8D 69 28 38 STRB W13, [X12,X8] ; 存AES KEY
__text:0000000101B21744 08 05 00 91 ADD X8, X8, #1
__text:0000000101B21748 1F 41 00 F1 CMP X8, #0x10
__text:0000000101B2174C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B21750 E1 FD FF 54 B.NE GenAesKey_loc_102FD570C ; 生成解密PIC的AES KEY生成后的AESKEY:[Asm] 纯文本查看 复制代码38 90 B6 70 76 74 00 C0 E6 4E 4A 02 98 80 8A 1C
[color=]AES解密PIC数据:
[Asm] 纯文本查看 复制代码__text:0000000101B1FA10 82 07 00 94 BL DecPic_loc_105235818 ; x0:第1个指针pic数据,X1:key
__text:0000000101B1FA14 E8 03 00 AA MOV X8, X0 ; X0:返回解密后的pic明文值
//获取IV 0102030405060708
//AES解密
__text:0000000101B1ABCC E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:0000000101B1ABD0 E0 03 00 91 MOV X0, SP
__text:0000000101B1ABD4 82 1E 80 52 MOV W2, #0xF4
__text:0000000101B1ABD8 01 00 80 52 MOV W1, #0
__text:0000000101B1ABDC BA F1 43 94 BL _memset
__text:0000000101B1ABE0 E1 03 19 32 MOV W1, #0x80
__text:0000000101B1ABE4 E2 03 00 91 MOV X2, SP
__text:0000000101B1ABE8 E0 03 18 AA MOV X0, X24
__text:0000000101B1ABEC 69 51 FF 97 BL InitKey_sub_102CBF190 ; 初始化KEY
__text:0000000101B1ABF0 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B1ABF4 E3 03 00 91 MOV X3, SP
__text:0000000101B1ABF8 E0 03 16 AA MOV X0, X22
__text:0000000101B1ABFC E1 03 13 AA MOV X1, X19
__text:0000000101B1AC00 E2 03 15 AA MOV X2, X21
__text:0000000101B1AC04 E4 03 17 AA MOV X4, X23
__text:0000000101B1AC08 05 00 80 52 MOV W5, #0
__text:0000000101B1AC0C C9 53 FF 97 BL Aes_Enc_Dec_sub_102CBFB30 ; 加密时:X1:原始数据,X2:大小,X3:初始化后的key,X4:IV,X5:模式:0:解密,1:加密
__text:0000000101B1AC0C ; 解密时:X0:原始数据,x1:返回,X2:大小,X3:初始化后的key,X4:IV,X5:模式:0:解密,1:加密
__text:0000000101B1AC10 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000101B1AC14 E0 03 13 AA MOV X0, X19
__text:0000000101B1AC18 E1 03 15 AA MOV X1, X21解密后数据(部分)[Asm] 纯文本查看 复制代码0000000104486020 78 9C 45 92 6D 6F DA 30 14 85 FF 4B B4 7D DA 44 x.E.mo.....K.}..
0000000104486030 FD 9E 18 69 5A CB DA 91 C2 02 2D B4 94 F0 ED 3A ...iZ.....-.....
0000000104486040 76 C0 4D 42 50 20 6D 42 C7 7F 9F 3D 4D 9A 64 E9 v..BP mB...=M.d.
0000000104486050 DA 47 D7 CF 3D 3E F2 47 00 38 18 E2 AF AE A0 60 ....=>.....⯮ .`
0000000104486060 C8 10 72 3B 12 0C 83 AC AE 06 0A 6A B7 C0 66 3B ..r;.......j...;
0000000104486070 3B B0 95 AB 60 03 DF E8 2E 04 08 42 A1 29 A3 3C ;...`......B.).解压缩AES解密后数据得到明文，后面的加解密数据都会使用里面数据做为KEY:[Asm] 纯文本查看 复制代码{"a1":1,"a10":400,"a2":"com.baobaoaichi.imaicai","a11":"0a76d34357f7c7859c1a3fd25516b4e4021ec931fd56b6a36ebf73e5aa34c406","a3":"b9eb65dbc4c7109259edc07826390faf3bd09e3920d66580b04a0853d3ee172b","a4":5230,"k0":{"k1":"meituan1sankuai0","k2":"meituan0sankuai1","k3":"$MXMYBS@HelloPay","k4":"Maoyan010iauknaS","k5":"34281a9dw2i701d4","k6":"X%rj@KiuU+|xY}?f"},"a5":"5.23.0","a0":"sdk9xWZTg5V9nKAxVFB5mB1ipZIJGmYSysreJ1f/rlvXJ7Ydxd3hJRdWb4QdZKr/","a6":"HdPfNPzY9GK6wzp0lEgaMaX06uEMke8y0H3eD0l4RapMpRmVaOWzyQkHMmOavR47","a7":"1yuZHjO43la6rhDXzMkjGiseg9yoRxxDtzwourYASiiAp4Yl0TUGvOiN4UcoJ6pQ","c0":{"c1":true,"c2":false},"a9":"gC4xYEhYfboH/8kOYsdIcbyYRTKfrVgmHLb3x8uNBag=","a8":1627281940842}解析上面的json数据获取对应的key:[Asm] 纯文本查看 复制代码__text:0000000101AFF460 04 8E 00 94 BL getPICkey_sub_102CF2C70 ; x0:返回pic json中的key
__text:0000000101B243E4 BF EA FF 97 BL ParsingJsonGetPicKEY_loc_105232EE0 ; x0:返回key
__text:0000000101B1F050 3D 00 00 94 BL PasingPicKey_loc_105187144 ; 解析pic获取key
__text:0000000101B1F144 PasingPicKey_loc_105187144
__text:0000000101B1F144 E0 7B 3F A9 STP X0, X30, [SP,#-0x10]
__text:0000000101B1F148 0F 00 00 94 BL sub_101B1F184
__text:0000000101B1F14C 74 C8 65 4A EON W20, W3, W5,LSR#50
__text:0000000101B1F14C
__text:0000000101B1F150 92 64 9A 0F+DCQ 0x16FC3DEB0F9A6492, 0x3C2CBC796F6AD130, 0xD907DA6BC5A30DF2, 0xD2EA795466662B7B
__text:0000000101B1F150 EB 3D FC 16+DCQ 0xBAC13E778CE19C3, 0x227363C9AEC0FB96
__text:0000000101B1F180
__text:0000000101B1F180 F7 8B 97 A9 STP X23, X2, [SP,#0x178]!
__text:0000000101B1F184
__text:0000000101B1F184
__text:0000000101B1F184
__text:0000000101B1F184
__text:0000000101B1F184 sub_101B1F184
__text:0000000101B1F184 40 01 00 10 ADR X0, loc_101B1F1AC
__text:0000000101B1F188 FE 03 00 AA MOV X30, X0
__text:0000000101B1F18C C0 03 5F D6 RET
五、反爬签名流程5.1、APP防爬背景App防爬主要通过对App客户端发起的请求进行签名。然后将签名与业务数据请求发送到服务器端，服务端WAF应用服务器收到的请求后，通过解析签名串进行风险识别、拦截恶意请求,通过校验App请求签名，识别App业务中的风险、拦截恶意请求，实现App防护的目的。
如图5-1所示，请求头中携带的签名信息:
签名头.png (29.92 KB, 下载次数: 0)
下载附件
2021-11-2 20:15 上传
图5-1
识别异常爬虫:
App签名异常：对使用未携带签名或签名非法的App访问防爬防护目标的请求进行检测和拦截。
设备特征异常：检测设备的异常特征，是否使用模拟器、使用代{过}{滤}理、Root设备、HOOK框架等。
基于以上逻辑，所以app会检测客户端环境。5.2、扫描设备风险检测越狱、hook框架等, 风险特征:[Asm] 纯文本查看 复制代码{
"0": 5,
"1": ["/var/mobile/iGrimace", "/var/mobile/Library/Preferences/orgioshackigrimaceadvplist", "/var/mobile/Library/Preferences/com007gaijiselappplist", "/Library/MobileSubstrate/DynamicLibraries/ALSplist", "/Library/MobileSubstrate/DynamicLibraries/rstweakplist", "/Library/MobileSubstrate/DynamicLibraries/AXJplist", "/Library/MobileSubstrate/DynamicLibraries/fakephonelibplist", "/Library/MobileSubstrate/DynamicLibraries/IGGplist", "/Library/MobileSubstrate/DynamicLibraries/AWZplist", "/Library/MobileSubstrate/DynamicLibraries/iGrimaceX9Tweakplist", "/Library/MobileSubstrate/DynamicLibraries/igvxplist", "/Library/MobileSubstrate/DynamicLibraries/R8plist", "/Library/MobileSubstrate/DynamicLibraries/iGrimaceplist", "/Library/MobileSubstrate/DynamicLibraries/V8Eplist", "/Library/MobileSubstrate/DynamicLibraries/zorroplist", "/Applications/NZTapp", "/Applications/AWZapp", "/var/mobile/awzdata", "/var/mobile/hdFaker", "/var/mobile/NZTResultplist", "/usr/bin/XGenDaemondylib", "/var/mobile/GFaker", "/var/mobile/nztdata", "/usr/bin/iGevo", "/var/root/Forge9_fix", "/var/root/igvx_fix", "/var/root/igvx_flag", "/var/mobile/Library/XXAssistant/Lua/LocalLuas/", "/Library/ApplicationSupport/XXAssistant/Lua/LocalLuas/", "/var/root/igfix", "/var/root/igflag", "/var/root/R8_fix", "/Library/ApplicationSupport/XXAssistant/Lua/Luas/Temp/public", "/var/mobile/Library/XXIDEHelper/xsp/", "/Library/ApplicationSupport/XXIDEHelper/xsp/", "/var/mobile/Library/XXAssistant/Lua/Luas/Temp/public", "/Applications/HiddenApiapp", "/Applications/Xgenapp", "/Applications/BirdFaker9app", "/Applications/VPNMasterProapp", "/Applications/GuizmOVPNapp", "/Applications/AXJapp", "/var/touchelf/scripts/", "/var/mobile/Media/TouchSprite/lua/", "/Applications/iGapp", "/Applications/Forge9app", "/Applications/Forgeapp", "/Applications/GFakerapp", "/Applications/hdfakersetapp", "/Applications/R8app", "/Applications/Pranavaapp", "/Applications/RSTapp", "/Applications/WujiVPNapp", "/Applications/TouchSpriteapp", "/Applications/TouchElfapp", "/Applications/igvxapp", "/usr/sbin/frida-server"],
"2": ["hdfakerdylib", "quickdobdylib", "Unfloddylib", "SogouInputIPhonedylib", "MTTweakdylib", "iAcessdylib", "NZTdylib", "OTRLocationdylib", "txytweakdylib", "GPSTravellerTweakdylib", "GPSTravellerTweak360dylib", "SkyWalkerBaseTweakdylib", "Lithiumdylib", "akLocationXdylib", "daniutweakdylib", "gpsmanagerplugindylib", "pbyydylib", "jbreakdylib", "GPSCheatdylib", "GPSTravellerTweakProXdylib", "zlocaspritiExdylib", "locationexpertplugindylib", "GPSTravellerTweakVIPdylib", "meituanadylib", "MATweakExdylib", "fakegpsplugindylib", "TEGPSdylib", "MFTweakExdylib", "Aerialdylib", "rstweakdylib", "Relocatedylib", "AWZdylib", "gpsmasterplugindylib", "ALSdylib", "zAdaptiveKeyboarddylib", "CatSysHelperdylib", "heiying518TweakExdylib", "0Shadowdylib", "UnSubdylib", "zzzzLibertydylib", "Libertydylib", "xCondylib", "Libertasdylib"],
"3": ["comsengledprotocolbtspeaker", "comgpsmockgps", "comcompanyaccessory", "comqzbzsproqpro1810", "commmpmmp", "comlocaspritihw", "comlogitechm100"],
"4": [
["UIDevice", "systemVersion", "/System/Library/PrivateFrameworks/UIKitCoreframework/UIKitCore"],
["UIDevice", "identifierForVendor", "/System/Library/PrivateFrameworks/UIKitCoreframework/UIKitCore"],
["UIDevice", "model", "/System/Library/PrivateFrameworks/UIKitCoreframework/UIKitCore"],
["UIDevice", "hwmodel", "/usr/lib/libobjcAdylib"],
["NSBundle", "executablePath", "/System/Library/Frameworks/Foundationframework/Foundation"],
["NSBundle", "bundleIdentifier", "/System/Library/Frameworks/Foundationframework/Foundation"]
],
"5": ["/usr/sbin/frida-server", "/etc/apt/sourceslistd/electralist", "/etc/apt/sourceslistd/sileosources", "/bootstrapped_electra", "/usr/lib/libjailbreakdylib", "/jb/lzma", "/cydia_no_stash", "/installed_unc0ver", "/jb/offsetsplist", "/usr/share/jailbreak/injectmeplist", "/etc/apt/undecimus/undecimuslist", "/var/lib/dpkg/info/mobilesubstratemd5sums", "/jb/jailbreakdplist", "/jb/amfid_payloaddylib", "/jb/libjailbreakdylib", "/usr/libexec/cydia/firmwaresh", "/var/lib/cydia", "/private/var/Users/", "/var/log/apt", "/private/var/lib/apt/", "/private/var/cache/apt/", "/private/var/log/syslog", "/Applications/blackra1napp", "/Applications/FakeCarrierapp", "/private/var/mobile/Library/SBSettings/Themes", "/Library/MobileSubstrate/CydiaSubstratedylib", "/Applications/Sileoapp", "/var/binpack", "/Library/PreferenceBundles/LibertyPrefbundle", "/Library/PreferenceBundles/ShadowPreferencesbundle", "/Library/PreferenceBundles/ABypassPrefsbundle", "/Library/PreferenceBundles/FlyJBPrefsbundle", "/usr/lib/libhookerdylib", "/usr/lib/libsubstitutedylib", "/usr/lib/substrate", "/usr/lib/TweakInject"],
"6": [],
"7": [],
"8": [],
"9": [],
"10": [],
}检测后结果:[Asm] 纯文本查看 复制代码{
"b1": "{\"7\":\"-\",\"3\":\"-\",\"4\":\"-\",\"5\":\"-\",\"1\":\"-\",\"33\":\"{\\\"7\\\":\\\"-\\\",\\\"3\\\":\\\"-\\\",\\\"8\\\":\\\"-\\\",\\\"4\\\":\\\"-\\\",\\\"0\\\":\\\"-\\\",\\\"9\\\":\\\"-\\\",\\\"5\\\":\\\"-\\\",\\\"1\\\":\\\"-\\\",\\\"6\\\":\\\"-\\\",\\\"2\\\":\\\"-\\\",\\\"10\\\":\\\"-\\\"}\",\"6\":\"-\",\"2\":\"-\"}",
"b2": 1,
"b3": 1,
"b4": "com.baobaoaichi.imaicai",
"b5": "5.25.0",
"b6": 5250,
"b7": 1635652007,
"b8": 1635650608,
"b9": 1635650608,
"b10": "5.2.11",
"b11": "5.2.11",
"b12": 2
}压缩后json[Asm] 纯文本查看 复制代码0000000107C97080 78 9C 6D 90 4D 0E 84 30 08 85 EF C2 DA 69 A0 4A x.m.M..0.....i.J
0000000107C97090 D5 9E 85 4D 75 33 5D 18 0F 60 BC FB C0 18 93 8E ՞ .Mu3]..`......
0000000107C970A0 43 D2 84 F7 3E 7E 5A 7A C0 42 90 E1 10 18 05 B2 C......z........
0000000107C970B0 C0 4B A0 13 E8 1B 3D 34 9A 1B 4D 6D FD D5 70 88 .......4..Mm....
0000000107C970C0 D8 1C 31 23 96 13 CB 8A CD FB 67 93 C3 06 87 A1 ..1#..ˊ ..g.....
0000000107C970D0 C3 66 87 B1 C3 C8 61 C9 61 D1 EB 7D 5C 7C 7E 37 ......a....}\|~7
0000000107C970E0 4D CD D6 F1 D6 27 74 B0 44 C8 A4 A1 BF C2 A0 9F M.......DȤ .. .
0000000107C970F0 BA EE 5B 58 CA AE A7 D4 F5 5D 43 DD 34 96 6A C5 ....ʮ ...]C...j.
0000000107C97100 AC 69 0E 91 03 9A 4B 90 39 32 AA 1A B5 3B F5 9C .i....K.92...;..
0000000107C97110 38 22 8E EA A7 DB 63 C2 49 FD FC F0 84 D7 A0 40 8"....c........@RC4加密压缩后数据:组合加密密钥：[Asm] 纯文本查看 复制代码1635653901 6d1efb41-1bb2-4db1-88ee-b89d21d06e5f //当前时间加获取appkey(ak:info.plist)加密:[Asm] 纯文本查看 复制代码__text:00000001052F9848 Rc4Enc_sub_10310D848
__text:00000001052F9848
__text:00000001052F9848 var_118= -0x118
__text:00000001052F9848 var_18= -0x18
__text:00000001052F9848 var_10= -0x10
__text:00000001052F9848 var_s0= 0
__text:00000001052F9848
__text:00000001052F9848 FF C3 04 D1 SUB SP, SP, #0x130
__text:00000001052F984C FC 6F 11 A9 STP X28, X27, [SP,#0x120+var_10]
__text:00000001052F9850 FD 7B 12 A9 STP X29, X30, [SP,#0x120+var_s0]
__text:00000001052F9854 FD 83 04 91 ADD X29, SP, #0x120
__text:00000001052F9858 68 BC 00 D0 ADRP X8, #___stack_chk_guard_ptr@PAGE
__text:00000001052F985C 08 FD 43 F9 LDR X8, [X8,#___stack_chk_guard_ptr@PAGEOFF]
__text:00000001052F9860 08 01 40 F9 LDR X8, [X8]
__text:00000001052F9864 A8 83 1E F8 STUR X8, [X29,#var_18]
__text:00000001052F9868 41 06 00 34 CBZ W1, loc_1052F9930
__text:00000001052F986C 08 00 80 D2 MOV X8, #0
__text:00000001052F9870 29 8B 00 B0 ADRP X9, #qword_10645E4D8@PAGE
__text:00000001052F9874 20 6D 42 FD LDR D0, [X9,#qword_10645E4D8@PAGEOFF]
__text:00000001052F9878 E9 23 00 91 ADD X9, SP, #0x120+var_118
__text:00000001052F987C 01 E5 00 0F MOVI V1.8B, #8
__text:00000001052F9880
__text:00000001052F9880 loc_1052F9880
__text:00000001052F9880 20 69 28 FC STR D0, [X9,X8]
__text:00000001052F9884 08 21 00 91 ADD X8, X8, #8
__text:00000001052F9888 00 84 21 0E ADD V0.8B, V0.8B, V1.8B
__text:00000001052F988C 1F 01 04 F1 CMP X8, #0x100
__text:00000001052F9890 81 FF FF 54 B.NE loc_1052F9880
__text:00000001052F9894 08 00 80 D2 MOV X8, #0
__text:00000001052F9898 0A 00 80 52 MOV W10, #0
__text:00000001052F989C E9 23 00 91 ADD X9, SP, #0x120+var_118
__text:00000001052F98A0
__text:00000001052F98A0 loc_1052F98A0
__text:00000001052F98A0 2B 69 68 38 LDRB W11, [X9,X8]
__text:00000001052F98A4 4A 01 0B 0B ADD W10, W10, W11
__text:00000001052F98A8 0C 0D C1 1A SDIV W12, W8, W1
__text:00000001052F98AC 8C A1 01 1B MSUB W12, W12, W1, W8
__text:00000001052F98B0 0C 48 6C 38 LDRB W12, [X0,W12,UXTW]
__text:00000001052F98B4 4A 01 0C 0B ADD W10, W10, W12
__text:00000001052F98B8 4A 1D 00 12 AND W10, W10, #0xFF
__text:00000001052F98BC 2C 49 6A 38 LDRB W12, [X9,W10,UXTW]
__text:00000001052F98C0 2C 69 28 38 STRB W12, [X9,X8]
__text:00000001052F98C4 2B 49 2A 38 STRB W11, [X9,W10,UXTW]
__text:00000001052F98C8 08 05 00 91 ADD X8, X8, #1
__text:00000001052F98CC 1F 01 04 F1 CMP X8, #0x100
__text:00000001052F98D0 81 FE FF 54 B.NE loc_1052F98A0
__text:00000001052F98D4 7F 04 00 71 CMP W3, #1
__text:00000001052F98D8 CB 02 00 54 B.LT loc_1052F9930
__text:00000001052F98DC 08 00 80 52 MOV W8, #0
__text:00000001052F98E0 09 00 80 52 MOV W9, #0
__text:00000001052F98E4 EA 23 00 91 ADD X10, SP, #0x120+var_118
__text:00000001052F98E8 EB 03 03 2A MOV W11, W3
__text:00000001052F98EC
__text:00000001052F98EC loc_1052F98EC
__text:00000001052F98EC 29 05 00 11 ADD W9, W9, #1
__text:00000001052F98F0 29 1D 00 12 AND W9, W9, #0xFF
__text:00000001052F98F4 4C 49 69 38 LDRB W12, [X10,W9,UXTW]
__text:00000001052F98F8 08 01 0C 0B ADD W8, W8, W12
__text:00000001052F98FC 08 1D 00 12 AND W8, W8, #0xFF
__text:00000001052F9900 4D 49 68 38 LDRB W13, [X10,W8,UXTW]
__text:00000001052F9904 4D 49 29 38 STRB W13, [X10,W9,UXTW]
__text:00000001052F9908 4C 49 28 38 STRB W12, [X10,W8,UXTW]
__text:00000001052F990C 4D 00 40 39 LDRB W13, [X2]
__text:00000001052F9910 4E 49 69 38 LDRB W14, [X10,W9,UXTW]
__text:00000001052F9914 CC 01 0C 0B ADD W12, W14, W12
__text:00000001052F9918 8C 1D 00 12 AND W12, W12, #0xFF
__text:00000001052F991C 4C 49 6C 38 LDRB W12, [X10,W12,UXTW]
__text:00000001052F9920 8C 01 0D 4A EOR W12, W12, W13
__text:00000001052F9924 4C 14 00 38 STRB W12, [X2],#1
__text:00000001052F9928 6B 05 00 F1 SUBS X11, X11, #1
__text:00000001052F992C 01 FE FF 54 B.NE loc_1052F98EC
__text:00000001052F9930
__text:00000001052F9930 loc_1052F9930
__text:00000001052F9930
__text:00000001052F9930 A8 83 5E F8 LDUR X8, [X29,#var_18]
__text:00000001052F9934 69 BC 00 D0 ADRP X9, #___stack_chk_guard_ptr@PAGE
__text:00000001052F9938 29 FD 43 F9 LDR X9, [X9,#___stack_chk_guard_ptr@PAGEOFF]
__text:00000001052F993C 29 01 40 F9 LDR X9, [X9]
__text:00000001052F9940 3F 01 08 EB CMP X9, X8
__text:00000001052F9944 A1 00 00 54 B.NE loc_1052F9958
__text:00000001052F9948 FD 7B 52 A9 LDP X29, X30, [SP,#0x120+var_s0]
__text:00000001052F994C FC 6F 51 A9 LDP X28, X27, [SP,#0x120+var_10]
__text:00000001052F9950 FF C3 04 91 ADD SP, SP, #0x130
__text:00000001052F9954 C0 03 5F D6 RET
__text:00000001052F9958
__text:00000001052F9958
__text:00000001052F9958 loc_1052F9958
__text:00000001052F9958 8F C2 43 94 BL ___stack_chk_fail
__text:00000001052F9958 ; End of function Rc4Enc_sub_10310D848
__text:00000001052F9958
__text:00000001052F9958
__text:00000001052F995C ; id __cdecl +[SAKDFPIDTimeStamp sharedManager](id, SEL)
__text:00000001052F995C FF 03 01 D1 __SAKDFPIDTimeStamp_sharedManager_ DCD 0xD10103FF
__text:00000001052F995C
__text:00000001052F9960 E0 FB 01 A9+DCQ 0x94000005A901FBE0, 0x7B1CA1F15A7EA9B6, 0xD5B672DB5B30C29E
__text:00000001052F9978
__text:00000001052F9978
__text:00000001052F9978
__text:00000001052F9978
__text:00000001052F9978 sub_1052F9978
__text:00000001052F9978 80 01 00 10 ADR X0, qword_1052F99A8
__text:00000001052F997C FE 03 00 AA MOV X30, X0
__text:00000001052F9980 FF 03 01 91 ADD SP, SP, #0x40 ; '@'
__text:00000001052F9984 C0 03 5F D6 RET
__text:00000001052F9984 ; End of function sub_1052F9978
__text:00000001052F9984
__text:00000001052F9984
__text:00000001052F9988 3A E6 C9 EB+DCQ 0x9154F1ADEBC9E63A, 0x8279F50529021640, 0xEF7B3AB1903E210A, 0xC58C700A3623B980
__text:00000001052F99A8 E0 FB 7D A9+qword_1052F99A8 DCQ 0xA93B7BE0A97DFBE0, 0xD2800020180000C0, 0x9400000314000006, 0x72C5000014BC
__text:00000001052F99A8 E0 7B 3B A9+ ; DATA XREF: sub_1052F9978↑o
__text:00000001052F99C8 03 00 00 00 DCD 3
__text:00000001052F99CC CB 00 00 00 DCD 0xCB
__text:00000001052F99D0 EE 49 FF 97+DCQ 0x4C97FF49EE, 0x4400000010, 0xA97B7BE091000000, 0xF944D508B000F1C8
__text:00000001052F99D0 4C 00 00 00+DCQ 0xA93B7BE0B100051F, 0xA93B7BE0540001C1, 0xD280004018000080, 0x9400000117FFFFF2
__text:00000001052F99D0 10 00 00 00+DCQ 0x8A00000005, 0xA93B7BE0A97B7BE0, 0xB000F1C8A97B7BE0, 0x1443C6BFF944D100
__text:00000001052F99D0 44 00 00 00+DCQ 0x910003FDA9BF7BFD, 0x9126A000B000F1C0, 0x9138A0219000BE21, 0xA8C17BFD9443C367
__text:00000001052F99D0 00 00 00 91+DCQ 0x18000100A93B7BE0, 0x17FFFFDDD2800000, 0x65DA94000005, 0x8CBA00003503
__text:00000001052F99D0 E0 7B 7B A9+DCQ 0xB7AE
__text:00000001052F9A78 0E 00 00 00 DCB 0xE, 0, 0, 0
__text:00000001052F9A7C
__text:00000001052F9A7C
__text:00000001052F9A7C ; void __cdecl loc_1052F9A7C(id)
__text:00000001052F9A7C loc_1052F9A7C ; DATA XREF: __const:0000000106ABDE28↓o
__text:00000001052F9A7C E0 7B 3F A9 STP X0, X30, [SP,#-0x10]
__text:00000001052F9A80 0F 00 00 94 BL sub_1052F9ABC
__text:00000001052F9A84 77 CE 22 D9 STG X23, [X19,#0x2C0]!
__text:00000001052F9A84
__text:00000001052F9A88 DD AA 5D 7E+DCQ 0x67FAB5857E5DAADD, 0x636F90947C5C6294, 0x64C3CAEA9D743E2D, 0xF71751CA5B2EBCED
__text:00000001052F9A88 85 B5 FA 67+DCQ 0x294A37644F0A024C, 0xB85C5F3824B80A03
__text:00000001052F9AB8 6F 8E 76 44 DCB 0x6F, 0x8E, 0x76, 0x44
__text:00000001052F9ABC
__text:00000001052F9ABC
__text:00000001052F9ABC
__text:00000001052F9ABC
__text:00000001052F9ABC sub_1052F9ABC
__text:00000001052F9ABC 40 01 00 10 ADR X0, loc_1052F9AE4
__text:00000001052F9AC0 FE 03 00 AA MOV X30, X0
__text:00000001052F9AC4 C0 03 5F D6 RET
__text:00000001052F9AC4 ; End of function sub_1052F9ABC
__text:00000001052F9AC4
__text:00000001052F9AC4
__text:00000001052F9AC8 DA 60 A5 84+DCQ 0x87C42B9D84A560DA, 0xFBEA799E68262D89, 0x71110D6F56979F07
__text:00000001052F9AE0
__text:00000001052F9AE0 24 E1 09 B3 BFXIL X4, X9, #9, #0x30 ; '0'
__text:00000001052F9AE4
__text:00000001052F9AE4 loc_1052F9AE4 ; DATA XREF: sub_1052F9ABC↑o
__text:00000001052F9AE4 E0 7B 7F A9 LDP X0, X30, [SP,#-0x10]
__text:00000001052F9AE8 FD 7B BF A9 STP X29, X30, [SP,#-0x10]!
__text:00000001052F9AEC FD 03 00 91 MOV X29, SP
__text:00000001052F9AF0 A8 E9 00 D0 ADRP X8, #classRef_SAKDFPIDTimeStamp@PAGE
__text:00000001052F9AF4 00 29 43 F9 LDR X0, [X8,#classRef_SAKDFPIDTimeStamp@PAGEOFF]
__text:00000001052F9AF8 28 E7 00 90 ADRP X8, #selRef_new@PAGE
__text:00000001052F9AFC 01 91 41 F9 LDR X1, [X8,#selRef_new@PAGEOFF]
__text:00000001052F9B00 75 C6 43 94 BL _objc_msgSend
__text:00000001052F9B04 C9 F1 00 B0 ADRP X9, #qword_1071329A0@PAGE
__text:00000001052F9B08 28 D1 44 F9 LDR X8, [X9,#qword_1071329A0@PAGEOFF]
__text:00000001052F9B0C 20 D1 04 F9 STR X0, [X9,#qword_1071329A0@PAGEOFF]
__text:00000001052F9B10 E0 03 08 AA MOV X0, X8
__text:00000001052F9B14 FD 7B C1 A8 LDP X29, X30, [SP],#0x10
__text:00000001052F9B18 7B C6 43 14 B _objc_release
__text:00000001052F9B1C
__text:00000001052F9B1C
__text:00000001052F9B1C
__text:00000001052F9B1C FF 03 01 D1 SUB SP, SP, #0x40 ; '@'
__text:00000001052F9B20 E0 FB 01 A9 STP X0, X30, [SP,#0x18]
__text:00000001052F9B24 04 00 00 94 BL sub_1052F9B34
__text:00000001052F9B24
__text:00000001052F9B28 DC BD 4D CC+DCQ 0xB1164D88CC4DBDDC
__text:00000001052F9B30 BF 34 C1 37 DCB 0xBF, 0x34, 0xC1, 0x37
__text:00000001052F9B34
__text:00000001052F9B34
__text:00000001052F9B34
__text:00000001052F9B34
__text:00000001052F9B34 sub_1052F9B34
__text:00000001052F9B34 40 01 00 10 ADR X0, dword_1052F9B5C
__text:00000001052F9B38 FE 03 00 AA MOV X30, X0
__text:00000001052F9B3C FF 03 01 91 ADD SP, SP, #0x40 ; '@'
__text:00000001052F9B40 C0 03 5F D6 RETRC4加密后:[Asm] 纯文本查看 复制代码0000000107C97080 25 F2 BB 8E 4A F9 CA 7C F7 9A 5F 7D CD 38 67 69 %.............gi
0000000107C97090 2E 4B EF 8D CE E5 F8 58 80 55 D6 0E 5E B3 CB 6A .K.......U..^...
0000000107C970A0 2A DB 14 AF D7 35 DC A5 ED 02 A8 58 E9 D8 AB 28 *.....ܥ ...X...(
0000000107C970B0 E4 3F F5 08 E9 6A 8D 7F 51 C7 B3 26 4F 8D 0E 42 ........Qdz &O..B
0000000107C970C0 B2 1C D9 CA 6F 73 C8 06 68 0F 64 30 D1 2B 7E 00 ....os..h.d0..~.
0000000107C970D0 76 A1 25 AB 6A EC D1 FE 67 9A 29 82 A4 44 31 2E v.%.j...g.)..D1.
0000000107C970E0 14 0B 96 E6 31 81 1F 34 F2 71 AA 86 60 A8 C0 CE .......4....`...
0000000107C970F0 3D 16 23 83 61 A7 C0 6A E6 A0 2A A0 7A 6B 1F 42 =.#.a.......zk.B
0000000107C97100 90 30 CC 59 5F 03 7F ED 44 B6 BC 36 B5 0C 97 9D .0.._......6....
0000000107C97110 82 A0 E4 E6 AB C2 C8 4E 29 F7 55 CA 87 D0 9A 1F .......N)....К .
0000000107C97120 8E 6D 57 52 00 68 BF 1F 62 D8 DD 67 E4 00 00 00 .mWR.h..b..g....Base64加密:[Asm] 纯文本查看 复制代码JfK7jkr5ynz3ml99zThnaS5L743O5fhYgFXWDl6zy2oq2xSv1zXcpe0CqFjp2Kso5D/1COlqjX9Rx7MmT40OQrIc2cpvc8gGaA9kMNErfgB2oSWrauzR/meaKYKkRDEuFAuW5jGBHzTycaqGYKjAzj0WI4Nhp8Bq5qAqoHprH0KQMMxZXwN/7US2vDa1DJedgqDk5qvCyE4p91XKh9CaH45tV1IAaL8fYtjdZ+Q=5.3、获取本地XID判断本地是否有存储，如果有优先读取本地，如果本地没有存储就生成一个,详细逻辑在设备指纹一节中再细说。[Asm] 纯文本查看 复制代码__text:00000001052E2E58 E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:00000001052E2E5C F4 4F BE A9 STP X20, X19, [SP,#-0x20]!
__text:00000001052E2E60 FD 7B 01 A9 STP X29, X30, [SP,#0x10]
__text:00000001052E2E64 FD 43 00 91 ADD X29, SP, #0x10
__text:00000001052E2E68 88 F2 00 90+ADRL X8, unk_1071328EC
__text:00000001052E2E68 08 B1 23 91
__text:00000001052E2E70 1F FD DF 88 LDAR WZR, [X8]
__text:00000001052E2E74 E9 03 00 32 MOV W9, #1
__text:00000001052E2E78 09 FD 9F 88 STLR W9, [X8]
__text:00000001052E2E7C 48 EA 00 90 ADRP X8, #classRef_SAKGuardDeviceFingerprint@PAGE
__text:00000001052E2E80 00 7D 45 F9 LDR X0, [X8,#classRef_SAKGuardDeviceFingerprint@PAGEOFF]
__text:00000001052E2E84 68 E9 00 90 ADRP X8, #selRef_getFingerprintXID@PAGE
__text:00000001052E2E88 01 25 45 F9 LDR X1, [X8,#selRef_getFingerprintXID@PAGEOFF]
__text:00000001052E2E8C 92 21 44 94 BL _objc_msgSend ; 计取本地
__text:00000001052E2E90 F3 03 00 AA MOV X19, X0
__text:00000001052E2E94 FD 03 1D AA MOV X29, X29
__text:00000001052E2E98 A7 21 44 94 BL _objc_retainAutoreleasedReturnValue
__text:00000001052E2E9C 48 EA 00 90 ADRP X8, #classRef_NSString@PAGE
__text:00000001052E2EA0 00 A9 41 F9 LDR X0, [X8,#classRef_NSString@PAGEOFF]
__text:00000001052E2EA4 68 E9 00 90 ADRP X8, #selRef_isNil_@PAGE
__text:00000001052E2EA8 01 21 45 F9 LDR X1, [X8,#selRef_isNil_@PAGEOFF]
__text:00000001052E2EAC E2 03 13 AA MOV X2, X19
__text:00000001052E2EB0 89 21 44 94 BL _objc_msgSend ; 判断是否为空
__text:00000001052E2EB4 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052E2EB8 1F 00 00 72 TST W0, #1
__text:00000001052E2EBC E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052E2EC0 A0 FA FF 54 B.EQ loc_1052E2E14
__text:00000001052E2EC4 54 C1 00 D0+ADRL X20, stru_106B0C488
__text:00000001052E2EC4 94 22 12 91
__text:00000001052E2ECC E0 03 14 AA MOV X0, X20
__text:00000001052E2ED0 90 21 44 94 BL _objc_retain
__text:00000001052E2ED4 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052E2ED8 00 00 80 D2 MOV X0, #0
__text:00000001052E2EDC CA FF FF 17 B loc_1052E2E04如果是第一次运行APP或本地没有存储时就本地生成XID：[Asm] 纯文本查看 复制代码-[SAKGuardDeviceFingerprint generateLocalXID]本地存储获取到的xid:[Asm] 纯文本查看 复制代码mw0bruZSgWId6ew08pp0a3d2Vpfq1fcZfyJrTVmk89oqGNr5754r2zbh6YfpvQ4CijQe+0LfaB+WbyR9njkTQ8iCiFQzqg8rh18j7EntWdk=5.4、获取dfpid同样也是如果也是判断本地是否有存储，如果有优先读取本地，如果本地没有存储就生成一个[Asm] 纯文本查看 复制代码+[SAKGuardDeviceFingerprint getFingerprintID]
__text:000000010530E17C E8 03 00 32 MOV W8, #1
__text:000000010530E180 68 FE 9F 88 STLR W8, [X19]
__text:000000010530E184 FB E8 00 90 ADRP X27, #classRef_SAKGuardDeviceFingerprint@PAGE
__text:000000010530E188 60 7F 45 F9 LDR X0, [X27,#classRef_SAKGuardDeviceFingerprint@PAGEOFF]
__text:000000010530E18C 88 E6 00 90 ADRP X8, #selRef_sharedInstance@PAGE
__text:000000010530E190 13 D9 45 F9 LDR X19, [X8,#selRef_sharedInstance@PAGEOFF]
__text:000000010530E194 E1 03 13 AA MOV X1, X19
__text:000000010530E198 CF 74 43 94 BL _objc_msgSend
__text:000000010530E19C F4 03 00 AA MOV X20, X0
__text:000000010530E1A0 FD 03 1D AA MOV X29, X29
__text:000000010530E1A4 E4 74 43 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010530E1A8 08 E8 00 90 ADRP X8, #selRef_static_dfpID@PAGE
__text:000000010530E1AC 01 FD 45 F9 LDR X1, [X8,#selRef_static_dfpID@PAGEOFF]
__text:000000010530E1B0 C9 74 43 94 BL _objc_msgSend ; 读取dfpid
__text:000000010530E1B4 F5 03 00 AA MOV X21, X0
__text:000000010530E1B8 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010530E1BC FD 03 1D AA MOV X29, X29
__text:000000010530E1C0 E0 03 15 AA MOV X0, X21
__text:000000010530E1C4 DC 74 43 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010530E1C8 E0 03 14 AA MOV X0, X20
__text:000000010530E1CC CE 74 43 94 BL _objc_release
__text:000000010530E1D0 68 E6 00 D0 ADRP X8, #selRef_isEqual_@PAGE
__text:000000010530E1D4 01 15 43 F9 LDR X1, [X8,#selRef_isEqual_@PAGEOFF]
__text:000000010530E1D8 F6 03 15 AA MOV X22, X21
__text:000000010530E1DC 82 ED 00 F0+ADRL X2, cfstr_R_5 ; "r!\x83Rn2\x8C"
__text:000000010530E1DC 42 80 14 91
__text:000000010530E1E4 E0 03 15 AA MOV X0, X21
__text:000000010530E1E8 BB 74 43 94 BL _objc_msgSend ; 判断是否为空
__text:000000010530E1EC E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010530E1F0 1F 00 00 72 TST W0, #1
__text:000000010530E1F4 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010530E1F8 41 19 00 54 B.NE loc_10530E520
__text:000000010530E1FC 68 E6 00 B0 ADRP X8, #selRef_length@PAGE
__text:000000010530E200 01 C1 47 F9 LDR X1, [X8,#selRef_length@PAGEOFF]
__text:000000010530E204 F6 03 15 AA MOV X22, X21
__text:000000010530E208 E0 03 15 AA MOV X0, X21
__text:000000010530E20C B2 74 43 94 BL _objc_msgSend
__text:000000010530E210 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010530E214 F6 03 15 AA MOV X22, X21
__text:000000010530E218 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010530E21C 40 0A 00 B5 CBNZ X0, loc_10530E364
__text:000000010530E220 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010530E224 A0 00 00 18 LDR W0, =9如果是第一次运行APP或本地没有存储时就本地生成dfpid：[Asm] 纯文本查看 复制代码+[SAKGuardLocalIDKeychainStorage generateLocalID]本地存储获取到的dfpid:[Asm] 纯文本查看 复制代码dad72f7de813ef8dfd0bbd58f3a775dacf5121ec1a2552173a0e314b5.4、获取系统风险
[Asm] 纯文本查看 复制代码
{
"0": 2,
"1": ["-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-"],
"2": ["-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-"],
"3": "{}"
}
压缩json
[Asm] 纯文本查看 复制代码
0000000283F81500 78 9C AB 56 32 50 B2 32 D2 51 32 54 B2 8A 56 D2 x..V2P.2..2T..V.
0000000283F81510 55 D2 A1 00 C7 EA 28 19 51 C5 14 63 25 2B A5 EA Uҡ ...(.Q..c%+..
0000000283F81520 5A A5 5A 00 EE 45 1A 61 00 00 00 00 00 00 00 00 Z.Z....a........
解密解析pic获取加密key(k6)
[Asm] 纯文本查看 复制代码X%rj@KiuU+|xY}?f
计算压缩后数据的crc值:
[Asm] 纯文本查看 复制代码
__text:00000001052CC27C E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:00000001052CC280 E8 03 01 2A MOV W8, W1
__text:00000001052CC284 09 00 80 12 MOV W9, #0xFFFFFFFF
__text:00000001052CC288 4A 8C 00 D0+ADRL X10, unk_1064565CC
__text:00000001052CC288 4A 31 17 91
__text:00000001052CC290 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052CC294
__text:00000001052CC294 loc_1052CC294
__text:00000001052CC294 0B 14 40 38 LDRB W11, [X0],#1 ; 取压缩后的数据
__text:00000001052CC298 2C 1D 00 12 AND W12, W9, #0xFF
__text:00000001052CC29C 8B 01 0B 4A EOR W11, W12, W11
__text:00000001052CC2A0 4B 59 6B B8 LDR W11, [X10,W11,UXTW#2]
__text:00000001052CC2A4 69 21 49 4A EOR W9, W11, W9,LSR#8 ; 计算
__text:00000001052CC2A8 08 05 00 F1 SUBS X8, X8, #1
__text:00000001052CC2AC E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052CC2B0 21 FF FF 54 B.NE loc_1052CC294 ; 取压缩后的数据
__text:00000001052CC2B4 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052CC2B8 60 00 00 18 LDR W0, =0
__text:00000001052CC2BC DC FF FF 17 B loc_1052CC22C
计算后得到:
[Asm] 纯文本查看 复制代码73bbf8c5
取PIC中获到的值(k6)后8字节与crc值组合做为AES KEY:
[Asm] 纯文本查看 复制代码
000000016B707800 55 2B 7C 78 59 7D 3F 66 00 00 00 00 00 00 00 00 U+|xY}?f
73bbf8c5U+|xY}?f
AES加密压缩后的数据:
[Asm] 纯文本查看 复制代码
IV 0102030405060708
KEY 73bbf8c5U+|xY}?f
__text:00000001052EEA08 E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:00000001052EEA0C E0 43 00 91 ADD X0, SP, #0x10
__text:00000001052EEA10 82 1E 80 52 MOV W2, #0xF4
__text:00000001052EEA14 01 00 80 52 MOV W1, #0
__text:00000001052EEA18 2B F2 43 94 BL _memset
__text:00000001052EEA1C E1 03 19 32 MOV W1, #0x80
__text:00000001052EEA20 E2 43 00 91 ADD X2, SP, #0x10
__text:00000001052EEA24 E0 03 17 AA MOV X0, X23
__text:00000001052EEA28 1A 51 FF 97 BL InitKey_sub_102CBEE90 ; x0:key,x1:长度,x2:初始化后的key
__text:00000001052EEA2C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052EEA30 E2 07 40 F9 LDR X2, [SP,#8]
__text:00000001052EEA34 E3 43 00 91 ADD X3, SP, #0x10
__text:00000001052EEA38 E5 03 00 32 MOV W5, #1
__text:00000001052EEA3C E0 03 15 AA MOV X0, X21
__text:00000001052EEA40 E1 03 13 AA MOV X1, X19
__text:00000001052EEA44 E4 03 16 AA MOV X4, X22
__text:00000001052EEA48 3A 54 FF 97 BL Aes_Enc_Dec_sub_102CBFB30 ; X0:原始数据,X1:初始化后的key,x2:大小,x3:key,X4:IV,X5:模式:0:解密,1:加密
__text:00000001052EEA4C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052EEA50 E8 07 40 F9 LDR X8, [SP,#8]
__text:00000001052EEA54 88 02 00 F9 STR X8, [X20]
__text:00000001052EEA58 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
加密后:
[Asm] 纯文本查看 复制代码
0000000280D20750 F7 7A 2E 6A 76 E2 C9 B4 70 F0 62 3B 07 62 91 D7 ....v...p....b..
0000000280D20760 BF 58 DF A6 69 1A D1 0E 0F DE 6A 87 34 00 B8 62 .Xߦ i.......4..b
0000000280D20770 AE DA CA 15 9F 12 62 7F D2 7B B0 D1 BC FA E9 45 ......b....Ѽ ...
base64加密与crc值组合:
[Asm] 纯文本查看 复制代码
73bbf8c593ouanbiybRw8GI7B2KR179Y36ZpGtEOD95qhzQAuGKu2soVnxJif9J7sNG8+ulF //前8字节为上面计算的crc值
第一次组合签名json，还差计算a2值:
[Asm] 纯文本查看 复制代码
{
"a0": "2.0",
"a1": "6d1efb41-1bb2-4db1-88ee-b89d21d06e5f",
"a3": 0,
"a4": 1635653901,
"a5": "JfK7jkr5ynz3ml99zThnaS5L743O5fhYgFXWDl6zy2oq2xSv1zXcpe0CqFjp2Kso5D/1COlqjX9Rx7MmT40OQrIc2cpvc8gGaA9kMNErfgB2oSWrauzR/meaKYKkRDEuFAuW5jGBHzTycaqGYKjAzj0WI4Nhp8Bq5qAqoHprH0KQMMxZXwN/7US2vDa1DJedgqDk5qvCyE4p91XKh9CaH45tV1IAaL8fYtjdZ+Q=",
"a6": 0,
"a7": "mw0bruZSgWId6ew08pp0a3d2Vpfq1fcZfyJrTVmk89oqGNr5754r2zbh6YfpvQ4CijQe+0LfaB+WbyR9njkTQ8iCiFQzqg8rh18j7EntWdk=",
"a8": "dad72f7de813ef8dfd0bbd58f3a775dacf5121ec1a2552173a0e314b",
"a9": "73bbf8c593ouanbiybRw8GI7B2KR179Y36ZpGtEOD95qhzQAuGKu2soVnxJif9J7sNG8+ulF",
"a10": "",
"x0": 2
}
5.5、计算请求体签名获取请求体，与上面组合的json签名拼接在一起计算签名[Asm] 纯文本查看 复制代码__text:00000001052DC014 E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:00000001052DC018 E0 03 19 AA MOV X0, X25
__text:00000001052DC01C A1 83 59 F8 LDUR X1, [X29,#-0x68]
__text:00000001052DC020 E2 03 1C AA MOV X2, X28
__text:00000001052DC024 64 F1 FF 97 BL copyData_sub_102CD45B4 ; 拷贝请求体
__text:00000001052DC028 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052DC02C 20 03 1C 8B ADD X0, X25, X28
__text:00000001052DC030 A1 0B 7A A9 LDP X1, X2, [X29,#-0x60]
__text:00000001052DC034 60 F1 FF 97 BL copyData_sub_102CD45B4 ; 拷贝签名值与请求体组合
__text:00000001052DC038 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001052DC03C E8 03 14 AA MOV X8, X20
__text:00000001052DC040 E0 03 19 AA MOV X0, X25
__text:00000001052DC044 A1 83 58 F8 LDUR X1, [X29,#-0x78]
__text:00000001052DC048 E2 03 16 AA MOV X2, X22
__text:00000001052DC04C AC DC 01 94 BL GenBodyMtsig_loc_1030332FC ; x0:原始数据,x1:大小
__text:00000001052DC050 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]组合后的请求体[Asm] 纯文本查看 复制代码00000001080B5600 50 4F 53 54 20 2F 61 70 70 75 70 64 61 74 65 2F POST /appupdate/
00000001080B5610 61 6C 69 74 61 2F 63 68 65 63 6B 55 70 64 61 74 alita/checkUpdat
00000001080B5620 65 20 5F 5F 72 65 71 54 72 61 63 65 49 44 3D 46 e __reqTraceID=F
00000001080B5630 38 33 31 30 34 37 32 2D 31 38 37 45 2D 34 34 44 8310472-187E-44D
00000001080B5640 34 2D 39 46 37 33 2D 33 31 36 32 34 30 46 30 39 4-9F73-316240F09
00000001080B5650 38 41 30 26 63 69 3D 32 26 6C 61 6E 67 75 61 67 8A0&ci=2&languag
00000001080B5660 65 3D 7A 68 5F 43 4E 26 75 74 6D 5F 63 61 6D 70 e=zh_CN&utm_camp
00000001080B5670 61 69 67 6E 3D 41 69 6D 61 69 63 61 69 5F 63 42 aign=Aimaicai_cB
00000001080B5680 69 6D 61 69 63 61 69 5F 63 48 30 26 75 74 6D 5F imaicai_cH0&utm_
00000001080B5690 63 6F 6E 74 65 6E 74 3D 30 30 30 30 30 30 30 30 content=00000000
00000001080B56A0 30 30 30 30 30 32 31 38 38 37 45 34 41 39 46 34 0000021887E4A9F4
00000001080B56B0 39 34 41 39 41 41 38 32 45 39 43 38 37 38 32 39 94A9AA82E9C87829
00000001080B56C0 45 43 46 46 37 41 31 36 33 33 37 39 32 30 30 38 ECFF7A1633792008
00000001080B56D0 32 37 37 36 38 32 32 38 26 75 74 6D 5F 6D 65 64 27768228&utm_med
00000001080B56E0 69 75 6D 3D 69 70 68 6F 6E 65 26 75 74 6D 5F 73 ium=iphone&utm_s
00000001080B56F0 6F 75 72 63 65 3D 41 70 70 53 74 6F 72 65 26 75 ource=AppStore&u
00000001080B5700 74 6D 5F 74 65 72 6D 3D 35 2E 32 35 2E 30 26 75 tm_term=5.25.0&u
00000001080B5710 75 69 64 3D 30 30 30 30 30 30 30 30 30 30 30 30 uid=000000000000
00000001080B5720 30 32 31 38 38 37 45 34 41 39 46 34 39 34 41 39 021887E4A9F494A9
00000001080B5730 41 41 38 32 45 39 43 38 37 38 32 39 45 43 46 46 AA82E9C87829ECFF
00000001080B5740 37 41 31 36 33 33 37 39 32 30 30 38 32 37 37 36 7A16337920082776
00000001080B5750 38 32 32 38 26 76 65 72 73 69 6F 6E 5F 6E 61 6D 8228&version_nam
00000001080B5760 65 3D 35 2E 32 35 2E 30 7B 22 63 68 61 6E 6E 65 e=5.25.0{"channe
00000001080B5770 6C 22 3A 22 41 70 70 53 74 6F 72 65 22 2C 22 61 l":"AppStore","a
00000001080B5780 70 70 56 65 72 73 69 6F 6E 22 3A 22 35 30 30 32 ppVersion":"5002
00000001080B5790 35 30 30 30 30 22 2C 22 61 70 70 22 3A 22 69 6D 50000","app":"im
00000001080B57A0 61 69 63 61 69 22 2C 22 62 75 6E 64 6C 65 73 22 aicai","bundles"
00000001080B57B0 3A 5B 5D 2C 22 66 69 6E 67 65 72 70 72 69 6E 74 :[],"fingerprint
00000001080B57C0 22 3A 22 4D 65 70 68 69 73 74 6F 22 2C 22 73 64 ":"Mephisto","sd
00000001080B57D0 6B 56 65 72 73 69 6F 6E 22 3A 22 31 2E 30 2E 30 kVersion":"1.0.0
00000001080B57E0 22 2C 22 70 6C 61 74 66 6F 72 6D 22 3A 22 69 4F ","platform":"iO
00000001080B57F0 53 22 7D 7B 22 61 30 22 3A 22 32 2E 30 22 2C 22 S"}{"a0":"2.0","
00000001080B5800 61 31 22 3A 22 36 64 31 65 66 62 34 31 2D 31 62 a1":"6d1efb41-1b
00000001080B5810 62 32 2D 34 64 62 31 2D 38 38 65 65 2D 62 38 39 b2-4db1-88ee-b89
00000001080B5820 64 32 31 64 30 36 65 35 66 22 2C 22 61 33 22 3A d21d06e5f","a3":
00000001080B5830 30 2C 22 61 34 22 3A 31 36 33 35 36 35 33 39 30 0,"a4":163565390
00000001080B5840 31 2C 22 61 35 22 3A 22 4A 66 4B 37 6A 6B 72 35 1,"a5":"JfK7jkr5
00000001080B5850 79 6E 7A 33 6D 6C 39 39 7A 54 68 6E 61 53 35 4C ynz3ml99zThnaS5L
00000001080B5860 37 34 33 4F 35 66 68 59 67 46 58 57 44 6C 36 7A 743O5fhYgFXWDl6z
00000001080B5870 79 32 6F 71 32 78 53 76 31 7A 58 63 70 65 30 43 y2oq2xSv1zXcpe0C
00000001080B5880 71 46 6A 70 32 4B 73 6F 35 44 2F 31 43 4F 6C 71 qFjp2Kso5D/1COlq
00000001080B5890 6A 58 39 52 78 37 4D 6D 54 34 30 4F 51 72 49 63 jX9Rx7MmT40OQrIc
00000001080B58A0 32 63 70 76 63 38 67 47 61 41 39 6B 4D 4E 45 72 2cpvc8gGaA9kMNEr
00000001080B58B0 66 67 42 32 6F 53 57 72 61 75 7A 52 2F 6D 65 61 fgB2oSWrauzR/mea
00000001080B58C0 4B 59 4B 6B 52 44 45 75 46 41 75 57 35 6A 47 42 KYKkRDEuFAuW5jGB
00000001080B58D0 48 7A 54 79 63 61 71 47 59 4B 6A 41 7A 6A 30 57 HzTycaqGYKjAzj0W
00000001080B58E0 49 34 4E 68 70 38 42 71 35 71 41 71 6F 48 70 72 I4Nhp8Bq5qAqoHpr
00000001080B58F0 48 30 4B 51 4D 4D 78 5A 58 77 4E 2F 37 55 53 32 H0KQMMxZXwN/7US2
00000001080B5900 76 44 61 31 44 4A 65 64 67 71 44 6B 35 71 76 43 vDa1DJedgqDk5qvC
00000001080B5910 79 45 34 70 39 31 58 4B 68 39 43 61 48 34 35 74 yE4p91XKh9CaH45t
00000001080B5920 56 31 49 41 61 4C 38 66 59 74 6A 64 5A 2B 51 3D V1IAaL8fYtjdZ+Q=
00000001080B5930 22 2C 22 61 36 22 3A 30 2C 22 61 37 22 3A 22 6D ","a6":0,"a7":"m
00000001080B5940 77 30 62 72 75 5A 53 67 57 49 64 36 65 77 30 38 w0bruZSgWId6ew08
00000001080B5950 70 70 30 61 33 64 32 56 70 66 71 31 66 63 5A 66 pp0a3d2Vpfq1fcZf
00000001080B5960 79 4A 72 54 56 6D 6B 38 39 6F 71 47 4E 72 35 37 yJrTVmk89oqGNr57
00000001080B5970 35 34 72 32 7A 62 68 36 59 66 70 76 51 34 43 69 54r2zbh6YfpvQ4Ci
00000001080B5980 6A 51 65 2B 30 4C 66 61 42 2B 57 62 79 52 39 6E jQe+0LfaB+WbyR9n
00000001080B5990 6A 6B 54 51 38 69 43 69 46 51 7A 71 67 38 72 68 jkTQ8iCiFQzqg8rh
00000001080B59A0 31 38 6A 37 45 6E 74 57 64 6B 3D 22 2C 22 61 38 18j7EntWdk=","a8
00000001080B59B0 22 3A 22 64 61 64 37 32 66 37 64 65 38 31 33 65 ":"dad72f7de813e
00000001080B59C0 66 38 64 66 64 30 62 62 64 35 38 66 33 61 37 37 f8dfd0bbd58f3a77
00000001080B59D0 35 64 61 63 66 35 31 32 31 65 63 31 61 32 35 35 5dacf5121ec1a255
00000001080B59E0 32 31 37 33 61 30 65 33 31 34 62 22 2C 22 61 39 2173a0e314b","a9
00000001080B59F0 22 3A 22 37 33 62 62 66 38 63 35 39 33 6F 75 61 ":"73bbf8c593oua
00000001080B5A00 6E 62 69 79 62 52 77 38 47 49 37 42 32 4B 52 31 nbiybRw8GI7B2KR1
00000001080B5A10 37 39 59 33 36 5A 70 47 74 45 4F 44 39 35 71 68 79Y36ZpGtEOD95qh
00000001080B5A20 7A 51 41 75 47 4B 75 32 73 6F 56 6E 78 4A 69 66 zQAuGKu2soVnxJif
00000001080B5A30 39 4A 37 73 4E 47 38 2B 75 6C 46 22 2C 22 61 31 9J7sNG8+ulF","a1
00000001080B5A40 30 22 3A 22 22 2C 22 78 30 22 3A 32 7D 20 31 37 0":"","x0":2}解密PIC获取a0值[Asm] 纯文本查看 复制代码sdk9xWZTg5V9nKAxVFB5mB1ipZIJGmYSysreJ1f/rlvXJ7Ydxd3hJRdWb4QdZKr/解密a0[Asm] 纯文本查看 复制代码key appkey:6d1efb41-1bb2-4db1-88ee-b89d21d06e5f
__text:000000010535363C DecPic_a0_loc_1051E763C
__text:000000010535363C 09 09 DC 9A UDIV X9, X8, X28 ; 解密pic a0
__text:0000000105353640 29 A1 1C 9B MSUB X9, X9, X28, X8
__text:0000000105353644 6A 6A 69 38 LDRB W10, [X19,X9] ; appkey 6d1efb41-1bb2-4db1-88ee-b89d21d06e5f
__text:0000000105353648 AB 6A 68 38 LDRB W11, [X21,X8] ; PIC a0
__text:000000010535364C 6A 01 0A 4A EOR W10, W11, W10
__text:0000000105353650 0A 6B 29 38 STRB W10, [X24,X9]
__text:0000000105353654 08 05 00 91 ADD X8, X8, #1
__text:0000000105353658 5F 03 08 EB CMP X26, X8 ; 判断是否结束
__text:000000010535365C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000105353660 E1 FE FF 54 B.NE DecPic_a0_loc_1051E763C ; 解密pic a0
__text:0000000105353664 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000105353668 A0 00 00 18 LDR W0, =0x17解密后a0[Asm] 纯文本查看 复制代码0000000280A08750 7C 55 57 4A 14 0E 42 69 67 06 3B 06 4A 49 07 0C |UWJ..Big.;.JI..
0000000280A08760 28 63 49 6F 5A 51 34 49 38 73 4B 4B 75 5C 3D 63 (cIoZQ4I8sKKu\=c
0000000280A08770 4F 16 47 03 再次解密a0分为两组[Asm] 纯文本查看 复制代码000000016D10C530 20 09 0B 16 48 52 1E 35 3B 5A 66666. ...HR.5;Z
000000016D10C540 67 5A 16 15 5B 50 74 3F 15 33 06 0D 68 15 64 2F gZ..[Pt?.3..h.d/
000000016D10C550 17 17 29 00 61 3F 13 4A 1B 5F 5C 5C 5C 5C 5C 5C ..).a?.J._\\\\\\
000000016D10C560 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C \\\\\\\\\\\\\\\\
000000016D10C570 5C 5C 5C 5C 5C 5C
0000000106B78A00 4A 63 61 7C 22 38 74 5F 51 30 0D 30 7C 7F 31 3A Jca|"8t_Q0.0|.1:
0000000106B78A10 1E 55 7F 59 6C 67 02 7F 0E 45 7D 7D 43 6A 0B 55 .U.Ylg...E}}Cj.U
0000000106B78A20 79 20 71 35 36 36 36 36 36 36 36 36 36 36 36 36 y q5666666666666
0000000106B78A30 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 6666666666666666将第二次解密后的a0值其中一组与请求体组合[Asm] 纯文本查看 复制代码00000001089E5A00 4A 63 61 7C 22 38 74 5F 51 30 0D 30 7C 7F 31 3A Jca|"8t_Q0.0|.1:
00000001089E5A10 1E 55 7F 59 6C 67 02 7F 0E 45 7D 7D 43 6A 0B 55 .U.Ylg...E}}Cj.U
00000001089E5A20 79 20 71 35 36 36 36 36 36 36 36 36 36 36 36 36 y q5666666666666
00000001089E5A30 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 6666666666666666
00000001089E5A40 50 4F 53 54 20 2F 61 70 70 75 70 64 61 74 65 2F POST /appupdate/
00000001089E5A50 61 6C 69 74 61 2F 63 68 65 63 6B 55 70 64 61 74 alita/checkUpdat
00000001089E5A60 65 20 5F 5F 72 65 71 54 72 61 63 65 49 44 3D 46 e __reqTraceID=F
00000001089E5A70 38 33 31 30 34 37 32 2D 31 38 37 45 2D 34 34 44 8310472-187E-44D
00000001089E5A80 34 2D 39 46 37 33 2D 33 31 36 32 34 30 46 30 39 4-9F73-316240F09
00000001089E5A90 38 41 30 26 63 69 3D 32 26 6C 61 6E 67 75 61 67 8A0&ci=2&languag
00000001089E5AA0 65 3D 7A 68 5F 43 4E 26 75 74 6D 5F 63 61 6D 70 e=zh_CN&utm_camp
00000001089E5AB0 61 69 67 6E 3D 41 69 6D 61 69 63 61 69 5F 63 42 aign=Aimaicai_cB
00000001089E5AC0 69 6D 61 69 63 61 69 5F 63 48 30 26 75 74 6D 5F imaicai_cH0&utm_
00000001089E5AD0 63 6F 6E 74 65 6E 74 3D 30 30 30 30 30 30 30 30 content=00000000
00000001089E5AE0 30 30 30 30 30 32 31 38 38 37 45 34 41 39 46 34 0000021887E4A9F4计算hmac值[Asm] 纯文本查看 复制代码__text:00000001052EEEDC hmac_256_sub_105182EDC
__text:00000001052EEEDC
__text:00000001052EEEDC
__text:00000001052EEEDC __src= -0x81
__text:00000001052EEEDC var_80= -0x80
__text:00000001052EEEDC var_78= -0x78
__text:00000001052EEEDC var_70= -0x70
__text:00000001052EEEDC var_68= -0x68
__text:00000001052EEEDC var_60= -0x60
__text:00000001052EEEDC var_18= -0x18
__text:00000001052EEEDC var_10= -0x10
__text:00000001052EEEDC var_s0= 0
__text:00000001052EEEDC
__text:00000001052EEEDC FF 83 02 D1 SUB SP, SP, #0xA0
__text:00000001052EEEE0 F4 4F 08 A9 STP X20, X19, [SP,#0x90+var_10]
__text:00000001052EEEE4 FD 7B 09 A9 STP X29, X30, [SP,#0x90+var_s0]
__text:00000001052EEEE8 FD 43 02 91 ADD X29, SP, #0x90
__text:00000001052EEEEC F3 03 02 AA MOV X19, X2
__text:00000001052EEEF0 E8 03 01 AA MOV X8, X1
__text:00000001052EEEF4 E9 03 00 AA MOV X9, X0
__text:00000001052EEEF8 CA BC 00 B0 ADRP X10, #___stack_chk_guard_ptr@PAGE
__text:00000001052EEEFC 4A FD 43 F9 LDR X10, [X10,#___stack_chk_guard_ptr@PAGEOFF]
__text:00000001052EEF00 4A 01 40 F9 LDR X10, [X10]
__text:00000001052EEF04 AA 83 1E F8 STUR X10, [X29,#var_18]
__text:00000001052EEF08 8A 8B 00 90 ADRP X10, #qword_10645E478@PAGE
__text:00000001052EEF0C 40 3D 42 FD LDR D0, [X10,#qword_10645E478@PAGEOFF]
__text:00000001052EEF10 E0 0F 00 FD STR D0, [SP,#0x90+var_78]
__text:00000001052EEF14 1F 20 03 D5 NOP
__text:00000001052EEF18 40 41 42 FD LDR D0, [X10,#qword_10645E480@PAGEOFF]
__text:00000001052EEF1C E0 13 00 FD STR D0, [SP,#0x90+var_70]
__text:00000001052EEF20 FF 33 00 B9 STR WZR, [SP,#0x90+var_60]
__text:00000001052EEF24 1F 20 03 D5 NOP
__text:00000001052EEF28 40 5D 42 FD LDR D0, [X10,#qword_10645E4B8@PAGEOFF]
__text:00000001052EEF2C E0 17 00 FD STR D0, [SP,#0x90+var_68]
__text:00000001052EEF30 E0 63 00 91 ADD X0, SP, #0x90+var_78 ; int
__text:00000001052EEF34 E1 03 09 AA MOV X1, X9 ; __src
__text:00000001052EEF38 E2 03 08 AA MOV X2, X8
__text:00000001052EEF3C 39 00 00 94 BL sub_1052EF020
__text:00000001052EEF40 08 00 80 52 MOV W8, #0
__text:00000001052EEF44 09 00 80 D2 MOV X9, #0
__text:00000001052EEF48 EA 43 00 91 ADD X10, SP, #0x90+var_80
__text:00000001052EEF4C
__text:00000001052EEF4C loc_1052EEF4C
__text:00000001052EEF4C 3F 11 00 F1 CMP X9, #4
__text:00000001052EEF50 EB 27 9F 1A CSET W11, CC
__text:00000001052EEF54 EC 63 00 91 ADD X12, SP, #0x90+var_78
__text:00000001052EEF58 6C 01 7E B3 BFI X12, X11, #2, #1
__text:00000001052EEF5C 8B 15 40 B9 LDR W11, [X12,#0x14]
__text:00000001052EEF60 EC 03 28 2A MVN W12, W8
__text:00000001052EEF64 8C 05 1D 12 AND W12, W12, #0x18
__text:00000001052EEF68 6B 25 CC 1A LSR W11, W11, W12
__text:00000001052EEF6C 4B 69 29 38 STRB W11, [X10,X9]
__text:00000001052EEF70 29 05 00 91 ADD X9, X9, #1
__text:00000001052EEF74 08 21 00 11 ADD W8, W8, #8
__text:00000001052EEF78 3F 21 00 F1 CMP X9, #8
__text:00000001052EEF7C 81 FE FF 54 B.NE loc_1052EEF4C
__text:00000001052EEF80 E8 03 19 32 MOV W8, #0x80
__text:00000001052EEF84 E8 3F 00 39 STRB W8, [SP,#0x90+__src]
__text:00000001052EEF88 F4 63 00 91 ADD X20, SP, #0x90+var_78
__text:00000001052EEF8C 02 00 00 14 B loc_1052EEF94
__text:00000001052EEF90
__text:00000001052EEF90
__text:00000001052EEF90 loc_1052EEF90
__text:00000001052EEF90 FF 3F 00 39 STRB WZR, [SP,#0x90+__src]
__text:00000001052EEF94
__text:00000001052EEF94 loc_1052EEF94
__text:00000001052EEF94 E0 63 00 91 ADD X0, SP, #0x90+var_78 ; int
__text:00000001052EEF98 E1 3F 00 91 ADD X1, SP, #0x90+__src ; __src
__text:00000001052EEF9C E2 03 00 32 MOV W2, #1
__text:00000001052EEFA0 20 00 00 94 BL sub_1052EF020
__text:00000001052EEFA4 E8 2F 40 B9 LDR W8, [SP,#0x90+var_68+4]
__text:00000001052EEFA8 08 15 1D 12 AND W8, W8, #0x1F8
__text:00000001052EEFAC 1F 01 07 71 CMP W8, #0x1C0
__text:00000001052EEFB0 01 FF FF 54 B.NE loc_1052EEF90
__text:00000001052EEFB4 E0 63 00 91 ADD X0, SP, #0x90+var_78 ; int
__text:00000001052EEFB8 E1 43 00 91 ADD X1, SP, #0x90+var_80 ; __src
__text:00000001052EEFBC E2 03 1D 32 MOV W2, #8
__text:00000001052EEFC0 18 00 00 94 BL sub_1052EF020
__text:00000001052EEFC4 08 00 80 52 MOV W8, #0
__text:00000001052EEFC8 09 00 80 D2 MOV X9, #0
__text:00000001052EEFCC
__text:00000001052EEFCC loc_1052EEFCC
__text:00000001052EEFCC 2A 7D 42 D3 UBFX X10, X9, #2, #0x1E
__text:00000001052EEFD0 8A 7A 6A B8 LDR W10, [X20,X10,LSL#2]
__text:00000001052EEFD4 EB 03 28 2A MVN W11, W8
__text:00000001052EEFD8 6B 05 1D 12 AND W11, W11, #0x18
__text:00000001052EEFDC 4A 25 CB 1A LSR W10, W10, W11
__text:00000001052EEFE0 6A 6A 29 38 STRB W10, [X19,X9]
__text:00000001052EEFE4 29 05 00 91 ADD X9, X9, #1
__text:00000001052EEFE8 08 21 00 11 ADD W8, W8, #8
__text:00000001052EEFEC 3F 51 00 F1 CMP X9, #0x14
__text:00000001052EEFF0 E1 FE FF 54 B.NE loc_1052EEFCC
__text:00000001052EEFF4 A8 83 5E F8 LDUR X8, [X29,#var_18]
__text:00000001052EEFF8 C9 BC 00 B0 ADRP X9, #___stack_chk_guard_ptr@PAGE
__text:00000001052EEFFC 29 FD 43 F9 LDR X9, [X9,#___stack_chk_guard_ptr@PAGEOFF]
__text:00000001052EF000 29 01 40 F9 LDR X9, [X9]
__text:00000001052EF004 3F 01 08 EB CMP X9, X8
__text:00000001052EF008 A1 00 00 54 B.NE loc_1052EF01C
__text:00000001052EF00C FD 7B 49 A9 LDP X29, X30, [SP,#0x90+var_s0]
__text:00000001052EF010 F4 4F 48 A9 LDP X20, X19, [SP,#0x90+var_10]
__text:00000001052EF014 FF 83 02 91 ADD SP, SP, #0xA0
__text:00000001052EF018 C0 03 5F D6 RET
计算后的值
[Asm] 纯文本查看 复制代码
000000016B7078B0 D8 49 F8 46 FA 3A 4C 93 AC 68 76 4E 15 11 6C E2
000000016B7078C0 A5 81 4B 1F
计算后hmac值与解密后的a0其中一组组合
[Asm] 纯文本查看 复制代码
000000016B707850 20 09 0B 16 48
000000016B707860 52 1E 35 3B 5A 67 5A 16 15 5B 50 74 3F 15 33 06
000000016B707870 0D 68 15 64 2F 17 17 29 00 61 3F 13 4A 1B 5F 5C
000000016B707880 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C
000000016B707890 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C 5C D8 49 F8 46 FA
000000016B7078A0 3A 4C 93 AC 68 76 4E 15 11 6C E2 A5 81 4B 1F
再次计算hmac值
[Asm] 纯文本查看 复制代码
000000016B707A50 58 26 1C D2 C2 35 BC D4 CE 83 F3 AF E0 BA 76 8C
000000016B707A60 C5 90 AF 5C
加密计算的hmac值得到最终的签名值
[Asm] 纯文本查看 复制代码
__text:0000000105353BC4 loc_105353BC4
__text:0000000105353BC4 81 02 80 52 MOV W1, #0x14
__text:0000000105353BC8 E0 03 19 AA MOV X0, X25
__text:0000000105353BCC E2 03 1A AA MOV X2, X26
__text:0000000105353BD0 2D 1E 00 94 BL EncHmac_sha_loc_10303B484 ; x0:计算后的hmac,x1:大小，x0：返回
__text:0000000105353BD4 F9 03 00 AA MOV X25, X0
__text:0000000105353BD8 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000105353BDC
__text:0000000105353BDC loc_105353BDC
__text:0000000105353BDC E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:0000000105353BE0 41 03 40 F9 LDR X1, [X26]
__text:0000000105353BE4 E8 03 16 AA MOV X8, X22
__text:0000000105353BE8 E0 03 19 AA MOV X0, X25
__text:0000000105353BEC 66 0C 00 94 BL Hex2String_loc_105296D84 ; hmac转换成字符串
__text:0000000105353BF0 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000105353BF4 C8 0A 40 F9 LDR X8, [X22,#0x10]
__text:0000000105353BF8 88 0A 00 F9 STR X8, [X20,#0x10]
__text:0000000105353BFC C0 02 C0 3D LDR Q0, [X22]
__text:0000000105353C00 80 02 80 3D STR Q0, [X20]
__text:0000000105353C04 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000105353C08 B9 DA FF B4 CBZ X25, loc_10535375C
__text:0000000105353C0C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:0000000105353C10 A0 00 00 18 LDR W0, =1
__text:0000000105353C14 51 FE FF 17 B loc_105353558
加密后
[Asm] 纯文本查看 复制代码0000000280190580 7F 26 8F D8 7F 5D 01 F3 2D D5 C7 E0 86 84 87 8E
转换成字符串
[Asm] 纯文本查看 复制代码7f268fd87f5d01f32dd5c7e08684878e
组合成最终的签名
[Asm] 纯文本查看 复制代码
{
"a0": "2.0",
"a1": "6d1efb41-1bb2-4db1-88ee-b89d21d06e5f",
"a3": 0,
"a4": 1635653901,
"a5": "JfK7jkr5ynz3ml99zThnaS5L743O5fhYgFXWDl6zy2oq2xSv1zXcpe0CqFjp2Kso5D/1COlqjX9Rx7MmT40OQrIc2cpvc8gGaA9kMNErfgB2oSWrauzR/meaKYKkRDEuFAuW5jGBHzTycaqGYKjAzj0WI4Nhp8Bq5qAqoHprH0KQMMxZXwN/7US2vDa1DJedgqDk5qvCyE4p91XKh9CaH45tV1IAaL8fYtjdZ+Q=",
"a6": 0,
"a7": "mw0bruZSgWId6ew08pp0a3d2Vpfq1fcZfyJrTVmk89oqGNr5754r2zbh6YfpvQ4CijQe+0LfaB+WbyR9njkTQ8iCiFQzqg8rh18j7EntWdk=",
"a8": "dad72f7de813ef8dfd0bbd58f3a775dacf5121ec1a2552173a0e314b",
"a9": "73bbf8c593ouanbiybRw8GI7B2KR179Y36ZpGtEOD95qhzQAuGKu2soVnxJif9J7sNG8+ulF",
"a10": "",
"x0": 2,
"a2": "7f268fd87f5d01f32dd5c7e08684878e"
}
整个请求体的签名结束，然后发起网络请求。
六、设备指纹分析6.1、请求服务器设备指纹应用启动后会生成两个ID，一个是XID，一个是DFPID，如图6-1、6-2所示:
xid.png (38.32 KB, 下载次数: 0)
下载附件
2021-11-2 20:31 上传
图6-1
dpfid.png (37.48 KB, 下载次数: 0)
下载附件
2021-11-2 20:31 上传
图6-2
6.2、XID生成获取设备信息:[Asm] 纯文本查看 复制代码__text:00000001010F3234 getmDeviceInfo_loc_104F0F234
__text:00000001010F3234
__text:00000001010F3234 FF 43 01 D1 SUB SP, SP, #0x50 ; 'P' ; 获取设备信息,x0:编号，根据编号走到对应的获取方法中
__text:00000001010F3238 E0 7B 02 A9 STP X0, X30, [SP,#0x20]
__text:00000001010F323C 03 00 00 94 BL sub_1010F3248
__text:00000001010F323C
__text:00000001010F3240 2A FC 35 E0+DCQ 0x27CDE47EE035FC2A
__text:00000001010F3248
__text:00000001010F3248
__text:00000001010F3248
__text:00000001010F3248
__text:00000001010F3248 sub_1010F3248
__text:00000001010F3248 00 01 00 10 ADR X0, loc_1010F3268
__text:00000001010F324C FE 03 00 AA MOV X30, X0
__text:00000001010F3250 FF 43 01 91 ADD SP, SP, #0x50 ; 'P'
__text:00000001010F3254 C0 03 5F D6 RET
__text:00000001010F3254 ; End of function sub_1010F3248
__text:00000001010F3254
__text:00000001010F3254
__text:00000001010F3258 47 86 7E 27+DCQ 0x183E35D4277E8647, 0x78B503779BA7D3FF
__text:00000001010F3268
__text:00000001010F3268
__text:00000001010F3268 loc_1010F3268 ; DATA XREF: sub_1010F3248↑o
__text:00000001010F3268 E0 7B 7D A9 LDP X0, X30, [SP,#-0x30]
__text:00000001010F326C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010F3270 80 01 80 D2 MOV X0, #0xC
__text:00000001010F3274 08 00 00 14 B loc_1010F3294
//循环获取设备信息
__text:00000001010F4EC8 E0 7B 7B A9 LDP X0, X30, [SP,#-0x50] ; 获取m设备信息
__text:00000001010F4ECC E9 2B 00 10 ADR X9, unk_1010F5448
__text:00000001010F4ED0 1F 20 03 D5 NOP
__text:00000001010F4ED4 28 79 A8 B8 LDRSW X8, [X9,X8,LSL#2]
__text:00000001010F4ED8 08 01 09 8B ADD X8, X8, X9
__text:00000001010F4EDC E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010F4EE0 00 01 1F D6 BR X8 ; 走到对应的获取信息方法将每一个获取到的信息组合单个json值,格式如下[Asm] 纯文本查看 复制代码{"value":"E68684F0-7573-4EBC-99BD-A03D58888888","code":1} //获取的IDFA获取本地XID，如果是第一次或本地没有存储就本地生成一个：[Asm] 纯文本查看 复制代码-[SAKGuardDeviceFingerprint generateLocalXID]
+[SAKGuardLocalIDKeychainStorage localID]
+[SAKGuardLocalIDKeychainStorage generateLocalID]
__text:000000010110C9D8 E8 03 00 32 MOV W8, #1
__text:000000010110C9DC 68 FE 9F 88 STLR W8, [X19]
__text:000000010110C9E0 F4 83 00 D1 SUB X20, SP, #0x20 ; ' '
__text:000000010110C9E4 9F 02 00 91 MOV SP, X20
__text:000000010110C9E8 F7 83 00 D1 SUB X23, SP, #0x20 ; ' '
__text:000000010110C9EC FF 02 00 91 MOV SP, X23
__text:000000010110C9F0 56 EC 00 D0+ADRL X22, cfstr_M_7 ; "m"
__text:000000010110C9F0 D6 82 30 91
__text:000000010110C9F8 E0 03 16 AA MOV X0, X22
__text:000000010110C9FC C5 BA 42 94 BL _objc_retain
__text:000000010110CA00 68 E7 00 D0 ADRP X8, #classRef_NSUUID@PAGE
__text:000000010110CA04 00 ED 43 F9 LDR X0, [X8,#classRef_NSUUID@PAGEOFF]
__text:000000010110CA08 08 E5 00 F0 ADRP X8, #selRef_UUID@PAGE
__text:000000010110CA0C 01 11 43 F9 LDR X1, [X8,#selRef_UUID@PAGEOFF]
__text:000000010110CA10 B1 BA 42 94 BL _objc_msgSend
__text:000000010110CA14 F5 03 00 AA MOV X21, X0
__text:000000010110CA18 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CA1C FD 03 1D AA MOV X29, X29
__text:000000010110CA20 E0 03 15 AA MOV X0, X21
__text:000000010110CA24 C4 BA 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110CA28 08 E5 00 F0 ADRP X8, #selRef_UUIDString@PAGE
__text:000000010110CA2C 01 C9 43 F9 LDR X1, [X8,#selRef_UUIDString@PAGEOFF]
__text:000000010110CA30 A9 BA 42 94 BL _objc_msgSend ; 生成UUID字符串
__text:000000010110CA34 F9 03 00 AA MOV X25, X0
__text:000000010110CA38 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CA3C FD 03 1D AA MOV X29, X29
__text:000000010110CA40 E0 03 19 AA MOV X0, X25
__text:000000010110CA44 BC BA 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110CA48 08 E5 00 B0 ADRP X8, #selRef_stringByReplacingOccurrencesOfString_withString_@PAGE
__text:000000010110CA4C 01 D1 41 F9 LDR X1, [X8,#selRef_stringByReplacingOccurrencesOfString_withString_@PAGEOFF]
__text:000000010110CA50 42 EC 00 D0+ADRL X2, cfstr_K_7 ; "k"
__text:000000010110CA50 42 00 31 91
__text:000000010110CA58 98 BE 00 90+ADRL X24, stru_1028DC488
__text:000000010110CA58 18 23 12 91
__text:000000010110CA60 E3 03 18 AA MOV X3, X24
__text:000000010110CA64 9C BA 42 94 BL _objc_msgSend ; 替换掉UUID"-"
__text:000000010110CA68 F3 03 00 AA MOV X19, X0
__text:000000010110CA6C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CA70 FD 03 1D AA MOV X29, X29
__text:000000010110CA74 E0 03 13 AA MOV X0, X19
__text:000000010110CA78 AF BA 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110CA7C E0 03 19 AA MOV X0, X25
__text:000000010110CA80 A1 BA 42 94 BL _objc_release
__text:000000010110CA84 E0 03 15 AA MOV X0, X21
__text:000000010110CA88 9F BA 42 94 BL _objc_release
__text:000000010110CA8C 68 E7 00 D0 ADRP X8, #classRef_NSDate@PAGE
__text:000000010110CA90 00 B9 42 F9 LDR X0, [X8,#classRef_NSDate@PAGEOFF]
__text:000000010110CA94 08 E5 00 B0 ADRP X8, #selRef_date@PAGE
__text:000000010110CA98 01 AD 41 F9 LDR X1, [X8,#selRef_date@PAGEOFF]
__text:000000010110CA9C 8E BA 42 94 BL _objc_msgSend
__text:000000010110CAA0 F5 03 00 AA MOV X21, X0
__text:000000010110CAA4 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CAA8 FD 03 1D AA MOV X29, X29
__text:000000010110CAAC E0 03 15 AA MOV X0, X21
__text:000000010110CAB0 A1 BA 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110CAB4 08 E5 00 B0 ADRP X8, #selRef_timeIntervalSince1970@PAGE
__text:000000010110CAB8 01 B1 41 F9 LDR X1, [X8,#selRef_timeIntervalSince1970@PAGEOFF]
__text:000000010110CABC 86 BA 42 94 BL _objc_msgSend ; 获取时间
__text:000000010110CAC0 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CAC4 A8 85 00 90 ADRP X8, #off_1021C05D8@PAGE
__text:000000010110CAC8 01 ED 42 FD LDR D1, [X8,#off_1021C05D8@PAGEOFF]
__text:000000010110CACC 00 08 61 1E FMUL D0, D0, D1
__text:000000010110CAD0 19 00 78 9E FCVTZS X25, D0
__text:000000010110CAD4 E0 03 15 AA MOV X0, X21
__text:000000010110CAD8 8B BA 42 94 BL _objc_release
__text:000000010110CADC 7B E7 00 D0 ADRP X27, #classRef_NSString@PAGE
__text:000000010110CAE0 60 AB 41 F9 LDR X0, [X27,#classRef_NSString@PAGEOFF]
__text:000000010110CAE4 08 E5 00 90 ADRP X8, #selRef_stringWithFormat_@PAGE
__text:000000010110CAE8 1A 4D 40 F9 LDR X26, [X8,#selRef_stringWithFormat_@PAGEOFF]
__text:000000010110CAEC F9 0F 1F F8 STR X25, [SP,#-0x10]!
__text:000000010110CAF0 42 EC 00 D0+ADRL X2, stru_102E96C60 ; " ?\x0F"
__text:000000010110CAF0 42 80 31 91
__text:000000010110CAF8 E1 03 1A AA MOV X1, X26
__text:000000010110CAFC 76 BA 42 94 BL _objc_msgSend ; 格式化时间
__text:000000010110CB00 FF 43 00 91 ADD SP, SP, #0x10
__text:000000010110CB04 F5 03 00 AA MOV X21, X0
__text:000000010110CB08 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CB0C FD 03 1D AA MOV X29, X29
__text:000000010110CB10 E0 03 15 AA MOV X0, X21
__text:000000010110CB14 88 BA 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110CB18 40 EC 00 D0+ADRL X0, cfstr_6_7 ; "6"
__text:000000010110CB18 00 00 32 91
__text:000000010110CB20 7C BA 42 94 BL _objc_retain
__text:000000010110CB24 68 AB 41 F9 LDR X8, [X27,#classRef_NSString@PAGEOFF]
__text:000000010110CB28 7F 02 00 F1 CMP X19, #0
__text:000000010110CB2C 09 03 93 9A CSEL X9, X24, X19, EQ
__text:000000010110CB30 BF 02 00 F1 CMP X21, #0
__text:000000010110CB34 0A 03 95 9A CSEL X10, X24, X21, EQ
__text:000000010110CB38 FF 83 00 D1 SUB SP, SP, #0x20 ; ' '
__text:000000010110CB3C EA 03 01 A9 STP X10, X0, [SP,#0x10]
__text:000000010110CB40 F6 27 00 A9 STP X22, X9, [SP]
__text:000000010110CB44 42 EC 00 D0+ADRL X2, stru_102E96CA0 ; "\x8A|\x96\x12\x04\xAEu\x8E"
__text:000000010110CB44 42 80 32 91
__text:000000010110CB4C E0 03 08 AA MOV X0, X8
__text:000000010110CB50 E1 03 1A AA MOV X1, X26
__text:000000010110CB54 60 BA 42 94 BL _objc_msgSend ; UUID+时间
__text:000000010110CB58 FF 83 00 91 ADD SP, SP, #0x20 ; ' '
__text:000000010110CB5C F9 03 00 AA MOV X25, X0
__text:000000010110CB60 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CB64 FD 03 1D AA MOV X29, X29
__text:000000010110CB68 E0 03 19 AA MOV X0, X25
__text:000000010110CB6C 72 BA 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110CB70 08 E5 00 D0 ADRP X8, #selRef_lowercaseString@PAGE
__text:000000010110CB74 01 D5 47 F9 LDR X1, [X8,#selRef_lowercaseString@PAGEOFF]
__text:000000010110CB78 57 BA 42 94 BL _objc_msgSend ; 转换成小写
__text:000000010110CB7C F6 03 00 AA MOV X22, X0
__text:000000010110CB80 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CB84 FD 03 1D AA MOV X29, X29
__text:000000010110CB88 E0 03 16 AA MOV X0, X22
__text:000000010110CB8C 6A BA 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110CB90 E0 03 19 AA MOV X0, X25
__text:000000010110CB94 5C BA 42 94 BL _objc_release
__text:000000010110CB98 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110CB9C 36 DA FF B4 CBZ X22, loc_10110C6E0
__text:000000010110CBA0 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
//加密
__text:000000010110C6E0 9F 7E 00 A9 STP XZR, XZR, [X20]
__text:000000010110C6E4 9F 0A 00 F9 STR XZR, [X20,#0x10]
__text:000000010110C6E8 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C6EC E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:000000010110C6F0 60 AB 41 F9 LDR X0, [X27,#classRef_NSString@PAGEOFF]
__text:000000010110C6F4 E8 E4 00 F0 ADRP X8, #selRef_alloc@PAGE
__text:000000010110C6F8 01 B1 47 F9 LDR X1, [X8,#selRef_alloc@PAGEOFF]
__text:000000010110C6FC 76 BB 42 94 BL _objc_msgSend
__text:000000010110C700 F9 03 00 AA MOV X25, X0
__text:000000010110C704 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C708 E8 03 17 AA MOV X8, X23
__text:000000010110C70C E0 03 14 AA MOV X0, X20
__text:000000010110C710 39 69 FE 97 BL EncCRC32_LodalID_loc_1056A2BF4 ; x0:指针uuid+时间
__text:000000010110C714 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C718 88 E6 00 D0 ADRP X8, #selRef_initFromCppString_@PAGE
__text:000000010110C71C 01 11 46 F9 LDR X1, [X8,#selRef_initFromCppString_@PAGEOFF]
__text:000000010110C720 E0 03 19 AA MOV X0, X25
__text:000000010110C724 E2 03 17 AA MOV X2, X23
__text:000000010110C728 6B BB 42 94 BL _objc_msgSend
__text:000000010110C72C F9 03 00 AA MOV X25, X0
__text:000000010110C730 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C734 E8 5E C0 39 LDRSB W8, [X23,#0x17]
__text:000000010110C738 1F 01 01 72 TST W8, #0x80000000
__text:000000010110C73C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C740 80 00 00 54 B.EQ loc_10110C750
__text:000000010110C744 E0 02 40 F9 LDR X0, [X23]
__text:000000010110C748 B3 B6 42 94 BL __ZdlPv ; operator delete(void *)
__text:000000010110C74C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C750
__text:000000010110C750 loc_10110C750 ; CODE XREF: __text:facebook::react::JSIExecutor::defaultTimeoutInvoker(std::function const&,std::function)+488A64↑j
__text:000000010110C750 77 AB 41 F9 LDR X23, [X27,#classRef_NSString@PAGEOFF]
__text:000000010110C754 08 E5 00 90 ADRP X8, #selRef_longLongValue@PAGE
__text:000000010110C758 01 F9 42 F9 LDR X1, [X8,#selRef_longLongValue@PAGEOFF]
__text:000000010110C75C E0 03 19 AA MOV X0, X25
__text:000000010110C760 5D BB 42 94 BL _objc_msgSend
__text:000000010110C764 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C768 E0 0F 1F F8 STR X0, [SP,#-0x10]!
__text:000000010110C76C 42 EC 00 D0+ADRL X2, cfstr_H_8 ; "h\xEA\xCF\x2D\x01D"
__text:000000010110C76C 42 00 33 91
__text:000000010110C774 E0 03 17 AA MOV X0, X23
__text:000000010110C778 E1 03 1A AA MOV X1, X26
__text:000000010110C77C 56 BB 42 94 BL _objc_msgSend
__text:000000010110C780 FF 43 00 91 ADD SP, SP, #0x10
__text:000000010110C784 F7 03 00 AA MOV X23, X0
__text:000000010110C788 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C78C FD 03 1D AA MOV X29, X29
__text:000000010110C790 E0 03 17 AA MOV X0, X23
__text:000000010110C794 68 BB 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110C798 60 AB 41 F9 LDR X0, [X27,#classRef_NSString@PAGEOFF]
__text:000000010110C79C DF 02 00 F1 CMP X22, #0
__text:000000010110C7A0 08 03 96 9A CSEL X8, X24, X22, EQ
__text:000000010110C7A4 FF 02 00 F1 CMP X23, #0
__text:000000010110C7A8 09 03 97 9A CSEL X9, X24, X23, EQ
__text:000000010110C7AC E8 27 BF A9 STP X8, X9, [SP,#-0x10]!
__text:000000010110C7B0 42 EC 00 D0+ADRL X2, cfstr_A_9 ; "A"
__text:000000010110C7B0 42 00 30 91
__text:000000010110C7B8 E1 03 1A AA MOV X1, X26
__text:000000010110C7BC 46 BB 42 94 BL _objc_msgSend
__text:000000010110C7C0 FF 43 00 91 ADD SP, SP, #0x10
__text:000000010110C7C4 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C7C8 FD 03 1D AA MOV X29, X29
__text:000000010110C7CC 5A BB 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110C7D0 BA EF 00 F0 ADRP X26, #qword_102F03060@PAGE
__text:000000010110C7D4 48 33 40 F9 LDR X8, [X26,#qword_102F03060@PAGEOFF]
__text:000000010110C7D8 40 33 00 F9 STR X0, [X26,#qword_102F03060@PAGEOFF]
__text:000000010110C7DC E0 03 08 AA MOV X0, X8
__text:000000010110C7E0 49 BB 42 94 BL _objc_release
__text:000000010110C7E4 98 E7 00 F0 ADRP X24, #classRef_SAKGuardLocalIDKeychainStorage@PAGE
__text:000000010110C7E8 00 1F 43 F9 LDR X0, [X24,#classRef_SAKGuardLocalIDKeychainStorage@PAGEOFF]
__text:000000010110C7EC 42 33 40 F9 LDR X2, [X26,#qword_102F03060@PAGEOFF]
__text:000000010110C7F0 88 E6 00 D0 ADRP X8, #selRef_hexString2Byte_@PAGE
__text:000000010110C7F4 01 D9 46 F9 LDR X1, [X8,#selRef_hexString2Byte_@PAGEOFF]
__text:000000010110C7F8 37 BB 42 94 BL _objc_msgSend
__text:000000010110C7FC FA 03 00 AA MOV X26, X0
__text:000000010110C800 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C804 FD 03 1D AA MOV X29, X29
__text:000000010110C808 E0 03 1A AA MOV X0, X26
__text:000000010110C80C 4A BB 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110C810 00 1F 43 F9 LDR X0, [X24,#classRef_SAKGuardLocalIDKeychainStorage@PAGEOFF]
__text:000000010110C814 88 E6 00 D0 ADRP X8, #selRef_xorLocalEncrypt_@PAGE
__text:000000010110C818 01 DD 46 F9 LDR X1, [X8,#selRef_xorLocalEncrypt_@PAGEOFF]
__text:000000010110C81C E2 03 1A AA MOV X2, X26
__text:000000010110C820 2D BB 42 94 BL _objc_msgSend ; xorLocalEncrypt
__text:000000010110C824 FB 03 00 AA MOV X27, X0
__text:000000010110C828 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:000000010110C82C FD 03 1D AA MOV X29, X29
__text:000000010110C830 E0 03 1B AA MOV X0, X27
__text:000000010110C834 40 BB 42 94 BL _objc_retainAutoreleasedReturnValue
__text:000000010110C838 88 E6 00 D0 ADRP X8, #selRef_byte2HexString@PAGE
__text:000000010110C83C 01 39 45 F9 LDR X1, [X8,#selRef_byte2HexString@PAGEOFF]
__text:000000010110C840 25 BB 42 94 BL _objc_msgSend
__text:000000010110C844 F8 03 00 AA MOV X24, X0检测风险工具:[Asm] 纯文本查看 复制代码/Library/MobileSubstrate/DynamicLibraries/AXJ.plist
/Library/MobileSubstrate/DynamicLibraries/ALS.plist
/Library/MobileSubstrate/DynamicLibraries/fakephonelib.plist
/Library/MobileSubstrate/DynamicLibraries/AWZ.plist
iGrimace-X9
iGrimace3
/Library/MobileSubstrate/DynamicLibraries/igvx.plist
iGrimace-R8
/Library/MobileSubstrate/DynamicLibraries/R8.plist
iGrimace144
/Library/MobileSubstrate/DynamicLibraries/iGrimace.plist
iGrimaceV8E
zorro
/Applications/NZT.app
/Applications/AWZ.app
/var/mobile/awzdata
/var/mobile/hdFaker
/usr/bin/XGenDaemon.dylib
/var/mobile/GFaker
/usr/bin/iGevo
/var/root/Forge9_fix
/var/mobile/Library/XXAssistant/Lua/LocalLuas/
/Library/ApplicationSupport/XXAssistant/Lua/LocalLuas/
/Library/ApplicationSupport/XXIDEHelper/xsp/
/var/mobile/Library/XXAssistant/Lua/Luas/Temp/public
/Applications/HiddenApi.app
/Applications/Xgen.app
/Applications/BirdFaker9.app
/Applications/VPNMasterPro.app
/Applications/GuizmOVPN.app
/Applications/AXJ.app
/var/touchelf/scripts/
/var/mobile/Media/TouchSprite/lua/
/Applications/iG.app
/Applications/Forge9.app
/Applications/Forge.app
/Applications/GFaker.app
/Applications/hdfakerset.app
/Applications/R8.app
/Applications/Pranava.app
/Applications/RST.app
/Applications/WujiVPN.app
/Applications/TouchSprite.app
/Applications/TouchElf.app
/Applications/igvx.app
/var/mobile/iGrimace
/var/mobile/Library/Preferences/org.ioshack.igrimace.adv.plist
/Library/MobileSubstrate/DynamicLibraries/zorro.plist
/var/mobile/Library/Preferences/com.007gaiji.selapp.plist
/Library/MobileSubstrate/DynamicLibraries/rstweak.plist检测代码[Asm] 纯文本查看 复制代码__text:00000001010FAACC E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:00000001010FAAD0 F4 4F BE A9 STP X20, X19, [SP,#-0x20]!
__text:00000001010FAAD4 FD 7B 01 A9 STP X29, X30, [SP,#0x10]
__text:00000001010FAAD8 FD 43 00 91 ADD X29, SP, #0x10
__text:00000001010FAADC F3 03 00 AA MOV X19, X0
__text:00000001010FAAE0 8C 02 43 94 BL _objc_retain
__text:00000001010FAAE4 59 38 00 94 BL chrck_MobileSubstrate.dylib_loc_101108C48 ; 检测越狱风险
__text:00000001010FAAE8 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAAEC 1F 00 00 72 TST W0, #1
__text:00000001010FAAF0 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAAF4 61 02 00 54 B.NE loc_1010FAB40
__text:00000001010FAAF8 E0 03 13 AA MOV X0, X19
__text:00000001010FAAFC 72 37 00 94 BL fileExistsAtPath_loc_1011088C4
__text:00000001010FAB00 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAB04 1F 00 00 72 TST W0, #1
__text:00000001010FAB08 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAB0C A1 01 00 54 B.NE loc_1010FAB40
__text:00000001010FAB10 E0 03 13 AA MOV X0, X19
__text:00000001010FAB14 E0 37 00 94 BL fopen_loc_101108A94
__text:00000001010FAB18 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAB1C 1F 00 00 72 TST W0, #1
__text:00000001010FAB20 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAB24 E1 00 00 54 B.NE loc_1010FAB40
__text:00000001010FAB28 E0 03 13 AA MOV X0, X19
__text:00000001010FAB2C 82 38 00 94 BL access_loc_101108D34
__text:00000001010FAB30 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAB34 1F 00 00 72 TST W0, #1
__text:00000001010FAB38 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAB3C 40 01 00 54 B.EQ loc_1010FAB64
__text:00000001010FAB40
__text:00000001010FAB40 loc_1010FAB40
__text:00000001010FAB40 ;
__text:00000001010FAB40 F4 03 00 32 MOV W20, #1
__text:00000001010FAB44 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010FAB48 E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:00000001010FAB4C E0 03 13 AA MOV X0, X19
__text:00000001010FAB50 6D 02 43 94 BL _objc_release
__text:00000001010FAB54 E0 03 14 AA MOV X0, X20
__text:00000001010FAB58 FD 7B 41 A9 LDP X29, X30, [SP,#0x10]
__text:00000001010FAB5C F4 4F C2 A8 LDP X20, X19, [SP],#0x20
//调用SVC 0X80
__text:000000010110DA0C E0 FB 7E A9 LDP X0, X30, [SP,#var_18]
__text:000000010110DA10 E8 03 01 AA MOV X8, X1
__text:000000010110DA14 E9 03 00 AA MOV X9, X0
__text:000000010110DA18 0A 00 80 D2 MOV X10, #0
__text:000000010110DA1C 8B 17 80 52 MOV W11, #0xBC
__text:000000010110DA20 F0 03 0B AA MOV X16, X11
__text:000000010110DA24 E0 03 09 AA MOV X0, X9
__text:000000010110DA28 E1 03 08 AA MOV X1, X8
__text:000000010110DA2C E2 03 0A AA MOV X2, X10
__text:000000010110DA30 E3 03 0A AA MOV X3, X10
__text:000000010110DA34 E4 03 0A AA MOV X4, X10
__text:000000010110DA38 E5 03 0A AA MOV X5, X10
__text:000000010110DA3C 01 10 00 D4 SVC 0x80
__text:000000010110DA40 E8 03 00 AA MOV X8, X0
__text:000000010110DA44 00 7D 40 93 SXTW X0, W8
__text:000000010110DA48 C0 03 5F D6 RET转换成最终的json格式[Asm] 纯文本查看 复制代码{
"m1": "0",
"m2": "1505899243198",
"m3": "imaicai",
"m4": "AppSyncUnified-FrontBoard.dylib\nSSLKillSwitch2.dylib\n",
"m5": "unknown",
"m6": "144048128",
"m7": "1.0",
"m8": "[{}]",
"m9": "中国电信",
"m10": "1",
"m11": "15F59763-196D-4B79-A514-AAE602B2DE888",
"m12": "E68684F0-7573-4EBC-99BD-A03D54B88888",
"m13": "1585614288859",
"m14": "19.4.0",
"m15": "0.000000",
"m16": "0",
"m17": "1",
"m18": "0",
"m19": "1",
"m27": "7707a7cc28b649dc8d898888886bc6636114f9b83bad286d6388c7b4",
"m122": "AA==",
"m125": "AppStore",
"m126": "unknown",
"m127": "112446.48453251045|3307.9816589355",
"m128": "[{\"bssid\":\"80:c5:48:4c:f4:6d\",\"ssid\":\"360wifi\"}]",
"m129": "428015897",
"m130": "unknown",
"m131": "116180860928",
"m132": "127989493760",
"m133": "0e9eb7333944b26d58e302d324bb64d978888826f7361c5020dc945cb157427e",
"m134": "unknown",
"m135": "0.000000",
"m136": "unknown",
"m137": "DarwinKernelVersion19.4.0:MonFeb2422:04:12PST2020;root:xnu-6153.102.3~1/RELEASE_ARM64_T8010",
"m138": "[5,100]",
"m139": "2",
"m140": "arm64",
"m141": "1",
"m142": "0.352187",
"m143": "0",
"m144": "5.25.0",
"m145": "appstore",
"m146": "1",
"m147": "Darwin",
"m148": "1634003530921.712",
"m149": "1633915717678.990",
"m150": "1635236908030",
"m151": "iPhone",
"m152": "5.2.11",
"m153": "000000000000021887E4A9F494A9AA82E9C87829ECFF7A163379200827768888",
"m154": "com.baobaoaichi.imaicai",
"m155": "1334003189760",
"m156": "1232.17.225.15",
"m157": "2099249152",
"m158": "D10AP",
"m159": "iPhone",
"m160": "iOS13.4",
"m161": "0.000000",
"m162": "WiFi",
"m163": "0",
"m164": "zh-Hans-CN",
"m165": "Asia/Shanghai(GMT+8)offset28800",
"m166": "iPhone9,1",
"m167": "750*1334",
"m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
"m200": "1583489309",
"m249": "iphone",
"m250": "Apple",
"m253": "[]",
"m254": "0",
"m255": "0",
"m256": "0",
"m274": "1",
"m293": "dad7bca2ce0c45fffb568e4e6436a921d88888ea3e5fcd07babfb97b",
"m294": "{\"7\":\"\",\"3\":\"1\",\"4\":\"\",\"5\":\"\",\"1\":\"1\",\"33\":\"{\\\"7\\\":\\\"-\\\",\\\"3\\\":\\\"-\\\",\\\"8\\\":\\\"-\\\",\\\"4\\\":\\\"-\\\",\\\"0\\\":\\\"-\\\",\\\"9\\\":\\\"-\\\",\\\"5\\\":\\\"-\\\",\\\"1\\\":\\\"-\\\",\\\"6\\\":\\\"-\\\",\\\"2\\\":\\\"-\\\",\\\"10\\\":\\\"-\\\"}\",\"6\":\"1\",\"2\":\"\"}",
"m304": "unknown",
"m305": "750*1334",
"m313": "2",
"m306": "{}",
"m307": "{\"m5\":5,\"m18\":7,\"m126\":7,\"m134\":5,\"m136\":5,\"m161\":7,\"m253\":5,\"m256\":7,\"m304\":5}"
}压缩json文数据,压缩后(部分)[Asm] 纯文本查看 复制代码0000000104AF3800 78 9C 6D 56 CB 6E 2B C7 11 FD 15 82 AB 3C 44 BA x.mV..+.......
0000000104AF3850 6F EC 7C 35 37 F3 8B F9 0D A8 60 9D 71 12 02 10 o...7.....`.q...
0000000104AF3860 DA 20 15 44 05 87 9B 6E D8 76 43 1D 92 0E E3 ED ...D...n..C.....
0000000104AF3870 ED E5 77 87 ED 6F 0E C3 7E D8 F5 8B F6 EE 78 78 ................解密PIC获取key(k1)[Asm] 纯文本查看 复制代码meituan1sankuai0AES加密压缩后数据[Asm] 纯文本查看 复制代码_text:00000001010BEA08 E0 7B 7B A9 LDP X0, X30, [SP,#-0x50]
__text:00000001010BEA0C E0 43 00 91 ADD X0, SP, #0x10
__text:00000001010BEA10 82 1E 80 52 MOV W2, #0xF4
__text:00000001010BEA14 01 00 80 52 MOV W1, #0
__text:00000001010BEA18 2B F2 43 94 BL _memset
__text:00000001010BEA1C E1 03 19 32 MOV W1, #0x80
__text:00000001010BEA20 E2 43 00 91 ADD X2, SP, #0x10
__text:00000001010BEA24 E0 03 17 AA MOV X0, X23
__text:00000001010BEA28 1A 51 FF 97 BL InitKey_sub_102CBEE90 ; x0:key,x1:长度,x2:初始化后的key
__text:00000001010BEA2C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010BEA30 E2 07 40 F9 LDR X2, [SP,#8]
__text:00000001010BEA34 E3 43 00 91 ADD X3, SP, #0x10
__text:00000001010BEA38 E5 03 00 32 MOV W5, #1
__text:00000001010BEA3C E0 03 15 AA MOV X0, X21
__text:00000001010BEA40 E1 03 13 AA MOV X1, X19
__text:00000001010BEA44 E4 03 16 AA MOV X4, X22
__text:00000001010BEA48 3A 54 FF 97 BL Aes_Enc_Dec_sub_102CBFB30 ; X0:原始数据,X1:初始化后的key,x2:大小,x3:key,X4:IV,X5:模式:0:解密,1:加密
__text:00000001010BEA4C E0 7B 3B A9 STP X0, X30, [SP,#-0x50]
__text:00000001010BEA50 E8 07 40 F9 LDR X8, [SP,#8]
__text:00000001010BEA54 88 02 00 F9 STR X8, [X20]
__text:00000001010BEA58 E0 7B 3B A9 STP X0, X30, [SP,#-0x50]AES加密后(部分)[Asm] 纯文本查看 复制代码0000000104AC3200 2C 36 30 1D 89 2C 90 E9 7E F7 1C DB 62 73 D7 5E ,60..,.......s..
0000000104AC3210 D2 FB 8C AC 1F 31 43 F2 AF B2 DE F1 29 78 33 4B .....1C........K
0000000104AC3220 8F AA 19 B8 40 E1 CF 85 CF 78 DB C1 19 B6 9A F5 ....@...........
0000000104AC3230 02 1A 23 C1 AC 88 31 C0 98 2A 3E 1A 30 2F 75 D5 ..#...1..*>.0/u.
0000000104AC3240 73 23 B8 15 E2 2A 32 A3 13 4B 38 86 6A 4F 87 2B s#.......K8.jO.+
0000000104AC3250 D8 D4 84 69 35 B4 B3 2B BE D8 37 D3 50 C0 FC 9E ...i5..+........
0000000104AC3260 95 E6 40 38 3D FA 91 4B 4B EA BF 4D BE C3 46 DE ....=..KK.......
0000000104AC3270 A7 EB EE BC CF 06 1B 42 E9 52 3F 7A 7F AF B8 55 .......B...z...Ubase64加密[Asm] 纯文本查看 复制代码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组合请求体[Asm] 纯文本查看 复制代码{
"encryptVersion": "1",
"src": "1",
"fingerPrintData": "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"
}计算签名，签名过程与上面分析的流程是一样的。[Asm] 纯文本查看 复制代码+[SAKGuardCommon sign:attachSiua:]
//获取info.plist中的appkeey 6d1efb41-1bb2-4db1-88ee-b89d21d06e5fdfpid逻辑差不多，这里就不分析了。七、算法还原7.1、加密设备指纹请求体算法(不全部展开了吧,大多都是标准算法)设备指纹相关用到的算法有AES、压缩、RC4、hmac、base64。
RC4:[Asm] 纯文本查看 复制代码#include
#include
//#include "base64.h"
/*********************************************************************
* Filename: rc4.c
* Copyright:
*********************************************************************/
typedef unsigned long ULONG;
void rc4_init(unsigned char* s, unsigned char* key, unsigned long Len) //初始化函数
{
int i = 0, j = 0;
char k[256] = { 0 };
unsigned char tmp = 0;
for (i = 0; i AES[Asm] 纯文本查看 复制代码/*******************
* AES - CBC
*******************/
int aes_encrypt_cbc(const BYTE in[], size_t in_len, BYTE out[], const WORD key[], int keysize, const BYTE iv[])
{
BYTE buf_in[AES_BLOCK_SIZE], buf_out[AES_BLOCK_SIZE], iv_buf[AES_BLOCK_SIZE];
int blocks, idx;
if (in_len % AES_BLOCK_SIZE != 0)
return(FALSE);
blocks = in_len / AES_BLOCK_SIZE;
memcpy(iv_buf, iv, AES_BLOCK_SIZE);
for (idx = 0; idx 测试解密设备指纹请求体[Asm] 纯文本查看 复制代码//解密fingerPrintData
BYTE base64_fingerPrintData[1][10434] = {
{"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"}
};
base64_len = mc_base64(base64_fingerPrintData, strlen(base64_fingerPrintData[0]), outdata, 0);
if (0 == base64_len) {
printf("mc_base64 error!\n");
return -1;
}
aesret = aes_decrypt_cbc(outdata, base64_len, out_ciphertext[0], key_schedule, 128, iv[0]);
if (1 != aesret) {
printf("aes_decrypt_cbc error!\n");
return -1;
}
/* 解压缩 */
uLong blen;
uLong dslen;
BYTE un_outdata[10434] = { 0 };
blen = compressBound(base64_len);
if (uncompress(un_outdata, &dslen, out_ciphertext[0], blen) != Z_OK)
{
printf("uncompress failed!\n");
return -1;
}
printf("fingerPrintData: %s\n", un_outdata);
解密出来的数据与上面分析的组合设备指纹json是一样的，解密成功，如图7-1所示:
解密测试.png (83.5 KB, 下载次数: 0)
下载附件
2021-11-2 20:38 上传
图7-1
八、总结我从分析的角度说下自己的看法，不对的地方还请指正，抗分析能力一般，代码混淆规律性很强，字符串加密方法用的一个容易被一次性还原。获取设备信息过于频繁，影响性能，回到开始说的风控在业务中的作用，大部分用户使用生鲜类APP时的目的性比较强，业务在拉新促活增加用户粘性的同时高质量留存与业务安全更是重中之重，所以产品流畅的用户体验是促进高留存的重要条件之一。
还有一些隐藏的彩蛋比较有意思，感兴趣的可以去自行分析。
