前言
前段时间有看到有人在找USBTrace软件，在网上找了也没看到有相关免费使用的教程。自己试了试，成功将程序解开功能也都能使用。结果不太优雅。
废话不多说了，进入教程正题吧。本案例中所有内容仅供个人学习交流，严禁用于商业用途和非法用途，否则由此产生的一切后果均与作者无关！
体验软件
首先去USBTrace官方网站将软件下载下来，正常走一遍使用流程。
分析注册流程
安装的是x64，工具：x64dbg,IDA
软件的注册页面
login.png (15.82 KB, 下载次数: 0)
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login
2024-9-10 13:56 上传
用x64dbg 附加，点击 Register USBTrace 然后回弹出一个这样的框，他会让选择文件，由此可以判读出，它肯定调用了 CreateFile函数。所以在CreateFileA 和CreateFileW上下断点。
register_selectFile.png (15.82 KB, 下载次数: 0)
下载附件
register_selectFile.png
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在选文件的对话框中观察到他的License File(*.dat) 所以就选unins000.dat 文件即可
selectDatFile.png (26.11 KB, 下载次数: 0)
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selectDatFile.png
2024-9-10 13:56 上传
他在CreateFileA断下，然后去看调用堆栈，看他上一层的调用函数是谁，在上一层调用里下断点
callBack.png (42.71 KB, 下载次数: 0)
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callBack
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上一层的位置
upPose.png (145.33 KB, 下载次数: 0)
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upPose
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在这里可以看到主模块是USBTrace.exe ，然后把它拖到IDA中进行分析。同时将两个的基址设置一样，在X64dbg中复制地址在IDA中跳转到相应位置。F5 查看反汇编代码，看一下整个流程。
在其中有看到ReadFile 函数被调用，在网上搜索该函数，该函数的第二个参数是接收读取到内容的缓存区。
接下来就是在X64dbg中动态调试分析
运行过ReadFile之后在内存窗口中可以看到unins00.dat文件的内容被读取进来。
datFileContent.png (19.36 KB, 下载次数: 0)
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datFileContent
2024-9-10 13:56 上传
在IDA中看到 在ReadFile之后是在调strtok_s函数，
该函数的参数作用如下
//strtok_s()函数原型
_Check_return_ _CRTIMP_ALTERNATIVE
char * __cdecl strtok_s(_Inout_opt_z_ char * _Str, _In_z_ const char * _Delim, _Inout_ _Deref_prepost_opt_z_ char ** _Context);
//第一个参数是要被分割的字符串
//第二个参数是分割的标识符
//第三个参数是用来存放被分割过的字符串
//返回值是分割过后的结果
所以在之前ReadFile 之后的内容缓冲区头部给他改成snlicdat#300024144#testUser#22/11/2025#(b)#cccccc
00000001400359BE | FF15 746C2000 | call qword ptr [] |
00000001400359C4 | 4C:8BE0 | mov r12,rax |
00000001400359C7 | 48:83F8 FF | cmp rax,0xFFFFFFFFFFFFFFFF |
00000001400359CB | 75 19 | jne usbtrace.1400359E6 |
00000001400359CD | FF15 2D6C2000 | call qword ptr [] |
00000001400359D3 | 8BD0 | mov edx,eax | edx:"#"
00000001400359D5 | 48:8D0D DCFA2100 | lea rcx,qword ptr [0x1402554B8] | 00000001402554B8:"
00000001400359DC | E8 3F67FFFF | call usbtrace.14002C120 |
00000001400359E1 | E9 4F030000 | jmp usbtrace.140035D35 |
00000001400359E6 | 33D2 | xor edx,edx | edx:"#"
00000001400359E8 | 48:8BC8 | mov rcx,rax |
00000001400359EB | FF15 FF6C2000 | call qword ptr [] |
00000001400359F1 | 44:8BF8 | mov r15d,eax |
00000001400359F4 | 3D 00000400 | cmp eax,0x40000 |
00000001400359F9 | 76 11 | jbe usbtrace.140035A0C |
00000001400359FB | 48:8D0D EEFA2100 | lea rcx,qword ptr [0x1402554F0] |
0000000140035A02 | E8 1967FFFF | call usbtrace.14002C120 |
0000000140035A07 | E9 ED020000 | jmp usbtrace.140035CF9 |
0000000140035A0C | 41:8D5F 01 | lea ebx,qword ptr [r15+0x1] |
0000000140035A10 | FF15 D26C2000 | call qword ptr [] |
0000000140035A16 | 48:8BC8 | mov rcx,rax |
0000000140035A19 | 44:8BC3 | mov r8d,ebx |
0000000140035A1C | BA 08000000 | mov edx,0x8 | edx:"#"
0000000140035A21 | FF15 B16C2000 | call qword ptr [] |
0000000140035A27 | 4C:8BF0 | mov r14,rax |
0000000140035A2A | 48:85C0 | test rax,rax |
0000000140035A2D | 75 11 | jne usbtrace.140035A40 |
0000000140035A2F | 48:8D0D F2FA2100 | lea rcx,qword ptr [0x140255528] |
0000000140035A36 | E8 E566FFFF | call usbtrace.14002C120 |
0000000140035A3B | E9 B4020000 | jmp usbtrace.140035CF4 |
0000000140035A40 | 48:897C24 20 | mov qword ptr [rsp+0x20],rdi |
0000000140035A45 | 4C:8D4C24 68 | lea r9,qword ptr [rsp+0x68] |
0000000140035A4A | 45:8BC7 | mov r8d,r15d |
0000000140035A4D | 48:8BD0 | mov rdx,rax | rdx:"#"
0000000140035A50 | 49:8BCC | mov rcx,r12 |
0000000140035A53 | FF15 87702000 | call qword ptr [] |
0000000140035A59 | 8BF8 | mov edi,eax |
0000000140035A5B | 85C0 | test eax,eax |
0000000140035A5D | 75 19 | jne usbtrace.140035A78 |
0000000140035A5F | FF15 9B6B2000 | call qword ptr [] |
0000000140035A65 | 8BD0 | mov edx,eax | edx:"#"
0000000140035A67 | 48:8D0D F2FA2100 | lea rcx,qword ptr [0x140255560] |
0000000140035A6E | E8 AD66FFFF | call usbtrace.14002C120 |
0000000140035A73 | E9 7C020000 | jmp usbtrace.140035CF4 |
0000000140035A78 | 4C:8D4424 60 | lea r8,qword ptr [rsp+0x60] |
0000000140035A7D | 48:8D5424 40 | lea rdx,qword ptr [rsp+0x40] |
0000000140035A82 | 49:8BCE | mov rcx,r14 |
0000000140035A85 | E8 EA481D00 | call |
0000000140035A8A | 48:85C0 | test rax,rax |
0000000140035A8D | 75 07 | jne usbtrace.140035A96 |
0000000140035A8F | 33FF | xor edi,edi |
0000000140035A91 | E9 5E020000 | jmp usbtrace.140035CF4 |
0000000140035A96 | 48:8D15 F3FA2100 | lea rdx,qword ptr [0x140255590] |
0000000140035A9D | 48:8BC8 | mov rcx,rax |
0000000140035AA0 | E8 2B4E1D00 | call |以"#"为分隔符 将分割出的第一个和snlicdat进行比较
0000000140035AA5 | 85C0 | test eax,eax |
0000000140035AA7 | 74 07 | je usbtrace.140035AB0 |
0000000140035AA9 | 33FF | xor edi,edi |
0000000140035AAB | E9 44020000 | jmp usbtrace.140035CF4 |
0000000140035AB0 | 4C:8D4424 60 | lea r8,qword ptr [rsp+0x60] |
0000000140035AB5 | 48:8D5424 40 | lea rdx,qword ptr [rsp+0x40] |
0000000140035ABA | 33C9 | xor ecx,ecx |
0000000140035ABC | E8 B3481D00 | call |
0000000140035AC1 | 48:8BD8 | mov rbx,rax |
0000000140035AC4 | 48:85C0 | test rax,rax |
0000000140035AC7 | 75 07 | jne usbtrace.140035AD0 |
0000000140035AC9 | 33FF | xor edi,edi |
0000000140035ACB | E9 24020000 | jmp usbtrace.140035CF4 |
0000000140035AD0 | 4C:8BC0 | mov r8,rax |
0000000140035AD3 | BA 04010000 | mov edx,0x104 | edx:"#"
0000000140035AD8 | 48:8D4D 90 | lea rcx,qword ptr [rbp-0x70] |
0000000140035ADC | E8 2F351D00 | call |"将300024144拼接到一个缓冲区"
0000000140035AE1 | 4C:8D0D E0E52D00 | lea r9,qword ptr [0x1403140C8] | r9:&"PE",
0000000140035AE8 | 4C:8D15 F9E52D00 | lea r10,qword ptr [0x1403140E8] | r10:NtReadFile+14
0000000140035AEF | 90 | nop |
0000000140035AF0 | 48:8BC3 | mov rax,rbx |
0000000140035AF3 | 4D:8B01 | mov r8,qword ptr [r9] | [r9]:"PE"
0000000140035AF6 | 4C:2BC3 | sub r8,rbx |
0000000140035AF9 | 0F1F80 00000000 | nop dword ptr [rax],eax |
0000000140035B00 | 0FB610 | movzx edx,byte ptr [rax] | edx:"#"
0000000140035B03 | 42:0FB60C00 | movzx ecx,byte ptr [rax+r8] |
0000000140035B08 | 2BD1 | sub edx,ecx | edx:"#",
0000000140035B0A | 75 07 | jne usbtrace.140035B13 |
0000000140035B0C | 48:FFC0 | inc rax |
0000000140035B0F | 85C9 | test ecx,ecx |
0000000140035B11 | 75 ED | jne usbtrace.140035B00 |
0000000140035B13 | 85D2 | test edx,edx | edx:"#"
0000000140035B15 | 74 16 | je usbtrace.140035B2D |
0000000140035B17 | 49:83C1 08 | add r9,0x8 | r9:&"PE"
0000000140035B1B | 4D:3BCA | cmp r9,r10 | r9:&"PE", r10:NtReadFile+14
0000000140035B1E | 7C D0 | jl usbtrace.140035AF0 |
0000000140035B20 | 397424 68 | cmp dword ptr [rsp+0x68],esi |
0000000140035B24 | 75 07 | jne usbtrace.140035B2D |
0000000140035B26 | 33FF | xor edi,edi |
0000000140035B28 | E9 C7010000 | jmp usbtrace.140035CF4 |
0000000140035B2D | 4C:8D4424 60 | lea r8,qword ptr [rsp+0x60] |
0000000140035B32 | 48:8D5424 40 | lea rdx,qword ptr [rsp+0x40] |
0000000140035B37 | 33C9 | xor ecx,ecx |
0000000140035B39 | E8 36481D00 | call |
0000000140035B3E | 48:8BD8 | mov rbx,rax |
0000000140035B41 | 48:85C0 | test rax,rax |
0000000140035B44 | 75 07 | jne usbtrace.140035B4D |
0000000140035B46 | 33FF | xor edi,edi |
0000000140035B48 | E9 A7010000 | jmp usbtrace.140035CF4 |
0000000140035B4D | 4C:8BC0 | mov r8,rax |
0000000140035B50 | BA 04010000 | mov edx,0x104 | edx:"#"
0000000140035B55 | 48:8D4D 90 | lea rcx,qword ptr [rbp-0x70] |
0000000140035B59 | E8 B2341D00 | call |"将TestUser连接到300024144的后面，最终这个字符串会进行加密运算"
0000000140035B5E | 4D:85ED | test r13,r13 |
0000000140035B61 | 74 10 | je usbtrace.140035B73 |
0000000140035B63 | 4C:8BC3 | mov r8,rbx |
0000000140035B66 | BA 04010000 | mov edx,0x104 | edx:"#"
0000000140035B6B | 49:8BCD | mov rcx,r13 |
0000000140035B6E | E8 39341D00 | call |
0000000140035B73 | 4C:8D4424 60 | lea r8,qword ptr [rsp+0x60] |
0000000140035B78 | 48:8D5424 40 | lea rdx,qword ptr [rsp+0x40] |
0000000140035B7D | 33C9 | xor ecx,ecx |
0000000140035B7F | E8 F0471D00 | call |
0000000140035B84 | 48:8BD8 | mov rbx,rax |
0000000140035B87 | 4C:8BC0 | mov r8,rax |
0000000140035B8A | BA 04010000 | mov edx,0x104 | edx:"#"
0000000140035B8F | 48:8D4D 90 | lea rcx,qword ptr [rbp-0x70] |
0000000140035B93 | E8 78341D00 | call |"这里是22/11/2025日期，后面有个函数对这个字符串进行时间校验"
0000000140035B98 | 48:8BD3 | mov rdx,rbx | 第四个#号
0000000140035B9B | 4C:8B6C24 70 | mov r13,qword ptr [rsp+0x70] |
0000000140035BA0 | 49:8BCD | mov rcx,r13 |
0000000140035BA3 | E8 48FBFFFF | call usbtrace.1400356F0 |"校验函数 对上面分割出的时间22/11/2025进行校验"
0000000140035BA8 | 85C0 | test eax,eax |
0000000140035BAA | 75 07 | jne usbtrace.140035BB3 |
0000000140035BAC | 33FF | xor edi,edi |
0000000140035BAE | E9 41010000 | jmp usbtrace.140035CF4 |
0000000140035BB3 | 4C:8D4424 60 | lea r8,qword ptr [rsp+0x60] |
0000000140035BB8 | 48:8D5424 40 | lea rdx,qword ptr [rsp+0x40] |
0000000140035BBD | 33C9 | xor ecx,ecx |
0000000140035BBF | E8 B0471D00 | call |
0000000140035BC4 | 48:85C0 | test rax,rax |
0000000140035BC7 | 75 07 | jne usbtrace.140035BD0 |
0000000140035BC9 | 33FF | xor edi,edi |
0000000140035BCB | E9 24010000 | jmp usbtrace.140035CF4 |
0000000140035BD0 | 4C:8BC0 | mov r8,rax |
0000000140035BD3 | BA 04010000 | mov edx,0x104 | edx:"#"
0000000140035BD8 | 48:8D8D A0000000 | lea rcx,qword ptr [rbp+0xA0] |
0000000140035BDF | E8 C8331D00 | call |
0000000140035BE4 | 4C:8D4C24 50 | lea r9,qword ptr [rsp+0x50] |
0000000140035BE9 | 4C:8D4424 58 | lea r8,qword ptr [rsp+0x58] |
0000000140035BEE | 48:8D95 A0000000 | lea rdx,qword ptr [rbp+0xA0] |
0000000140035BF5 | 49:8BCD | mov rcx,r13 |
0000000140035BF8 | E8 D3F7FFFF | call |"里面调用的是微软官方的hash加密函数 问了GPT不能还原出加密内容未加密时的内容"
0000000140035BFD | 48:8B7424 58 | mov rsi,qword ptr [rsp+0x58] |
0000000140035C02 | 85C0 | test eax,eax |
0000000140035C04 | 75 07 | jne usbtrace.140035C0D |
0000000140035C06 | 33FF | xor edi,edi |
0000000140035C08 | E9 E7000000 | jmp usbtrace.140035CF4 |
0000000140035C0D | 44:8B4424 50 | mov r8d,dword ptr [rsp+0x50] |
0000000140035C12 | 48:8D15 A7E32D00 | lea rdx,qword ptr [0x140313FC0] | rdx:"#"
0000000140035C19 | 48:8BCE | mov rcx,rsi |
0000000140035C1C | E8 CF4B1D00 | call |
0000000140035C21 | 85C0 | test eax,eax |
0000000140035C23 | 74 13 | je usbtrace.140035C38 |
0000000140035C25 | 48:8D0D 74F92100 | lea rcx,qword ptr [0x1402555A0] |
0000000140035C2C | E8 EF64FFFF | call usbtrace.14002C120 |
0000000140035C31 | 33FF | xor edi,edi |
0000000140035C33 | E9 BC000000 | jmp usbtrace.140035CF4 |
0000000140035C38 | FF15 AA6A2000 | call qword ptr [] |
0000000140035C3E | 48:8BC8 | mov rcx,rax |
0000000140035C41 | 4C:8BC6 | mov r8,rsi |
0000000140035C44 | 33D2 | xor edx,edx | edx:"#"
0000000140035C46 | FF15 946A2000 | call qword ptr [] |
0000000140035C4C | 48:C74424 58 00000000 | mov qword ptr [rsp+0x58],0x0 |
0000000140035C55 | 4C:8D4424 60 | lea r8,qword ptr [rsp+0x60] |
0000000140035C5A | 48:8D15 CF812000 | lea rdx,qword ptr [0x14023DE30] | rdx:"#"
0000000140035C61 | 33C9 | xor ecx,ecx |
0000000140035C63 | E8 0C471D00 | call |
0000000140035C68 | 48:8BD8 | mov rbx,rax |
0000000140035C6B | 4C:8D4C24 50 | lea r9,qword ptr [rsp+0x50] |
0000000140035C70 | 4C:8D4424 58 | lea r8,qword ptr [rsp+0x58] |
0000000140035C75 | 48:8D55 90 | lea rdx,qword ptr [rbp-0x70] |
0000000140035C79 | 49:8BCD | mov rcx,r13 |
0000000140035C7C | E8 4FF7FFFF | call |
0000000140035C81 | 85C0 | test eax,eax |
0000000140035C83 | 75 09 | jne usbtrace.140035C8E |
0000000140035C85 | 33FF | xor edi,edi |
0000000140035C87 | 48:8B7424 58 | mov rsi,qword ptr [rsp+0x58] |
0000000140035C8C | EB 66 | jmp usbtrace.140035CF4 |
0000000140035C8E | 44:8B4424 50 | mov r8d,dword ptr [rsp+0x50] |
0000000140035C93 | 4B:8D0C3E | lea rcx,qword ptr [r14+r15] |
0000000140035C97 | 49:8D0418 | lea rax,qword ptr [r8+rbx] |
0000000140035C9B | 48:3BC8 | cmp rcx,rax |
0000000140035C9E | 73 15 | jae usbtrace.140035CB5 |
0000000140035CA0 | 48:8D0D 29F92100 | lea rcx,qword ptr [0x1402555D0] |
0000000140035CA7 | E8 7464FFFF | call usbtrace.14002C120 |
0000000140035CAC | 33FF | xor edi,edi |
0000000140035CAE | 48:8B7424 58 | mov rsi,qword ptr [rsp+0x58] |
0000000140035CB3 | EB 3F | jmp usbtrace.140035CF4 |
0000000140035CB5 | 48:8BD3 | mov rdx,rbx | rdx:"#"
0000000140035CB8 | 48:8B7424 58 | mov rsi,qword ptr [rsp+0x58] |
0000000140035CBD | 48:8BCE | mov rcx,rsi |
0000000140035CC0 | E8 2B4B1D00 | call |
0000000140035CC5 | 85C0 | test eax,eax |
0000000140035CC7 | 74 10 | je usbtrace.140035CD9 |
0000000140035CC9 | 48:8D0D 00F92100 | lea rcx,qword ptr [0x1402555D0] |
0000000140035CD0 | E8 4B64FFFF | call usbtrace.14002C120 |
0000000140035CD5 | 33FF | xor edi,edi |
0000000140035CD7 | EB 1B | jmp usbtrace.140035CF4 |
0000000140035CD9 | FF15 096A2000 | call qword ptr [] |
0000000140035CDF | 48:8BC8 | mov rcx,rax |
0000000140035CE2 | 4C:8BC6 | mov r8,rsi |
0000000140035CE5 | 33D2 | xor edx,edx | edx:"#"
0000000140035CE7 | FF15 F3692000 | call qword ptr [] |
0000000140035CED | 33F6 | xor esi,esi |
0000000140035CEF | 48:897424 58 | mov qword ptr [rsp+0x58],rsi |
0000000140035CF4 | 48:8B5C24 48 | mov rbx,qword ptr [rsp+0x48] |
0000000140035CF9 | 49:8BCC | mov rcx,r12 |
0000000140035CFC | FF15 06692000 | call qword ptr [] |
0000000140035D02 | 4D:85F6 | test r14,r14 |
0000000140035D05 | 74 14 | je usbtrace.140035D1B |
0000000140035D07 | FF15 DB692000 | call qword ptr [] |
0000000140035D0D | 48:8BC8 | mov rcx,rax |
0000000140035D10 | 4D:8BC6 | mov r8,r14 |
0000000140035D13 | 33D2 | xor edx,edx | edx:"#"
0000000140035D15 | FF15 C5692000 | call qword ptr [] |
0000000140035D1B | 48:85F6 | test rsi,rsi |
0000000140035D1E | 74 15 | je usbtrace.140035D35 |
0000000140035D20 | FF15 C2692000 | call qword ptr [] |
0000000140035D26 | 48:8BC8 | mov rcx,rax |
0000000140035D29 | 4C:8BC6 | mov r8,rsi |
0000000140035D2C | 33D2 | xor edx,edx | edx:"#"
0000000140035D2E | FF15 AC692000 | call qword ptr [] |
0000000140035D34 | 90 | nop |
0000000140035D35 | 48:8B13 | mov rdx,qword ptr [rbx] | rdx:"#"
0000000140035D38 | 48:83EA 18 | sub rdx,0x18 | rdx:"#"
0000000140035D3C | F0:8342 10 FF | lock add dword ptr [rdx+0x10],0xFFFFFFFF |
0000000140035D41 | 7F 09 | jg usbtrace.140035D4C |
0000000140035D43 | 48:8B0A | mov rcx,qword ptr [rdx] |
0000000140035D46 | 48:8B01 | mov rax,qword ptr [rcx] |
0000000140035D49 | FF50 08 | call qword ptr [rax+0x8] |
0000000140035D4C | 8BC7 | mov eax,edi |
0000000140035D4E | 48:8B8D B0010000 | mov rcx,qword ptr [rbp+0x1B0] |
0000000140035D55 | 48:33CC | xor rcx,rsp |
0000000140035D58 | E8 A3281D00 | call usbtrace.140208600 |
0000000140035D5D | 48:8B9C24 18030000 | mov rbx,qword ptr [rsp+0x318] |
0000000140035D65 | 48:81C4 C0020000 | add rsp,0x2C0 |
0000000140035D6C | 41:5F | pop r15 |
0000000140035D6E | 41:5E | pop r14 |
0000000140035D70 | 41:5D | pop r13 |
0000000140035D72 | 41:5C | pop r12 |
0000000140035D74 | 5F | pop rdi |
0000000140035D75 | 5E | pop rsi |
0000000140035D76 | 5D | pop rbp |
0000000140035D77 | C3 | ret |
上面是读取文件之后校验license 是否有效的关键汇编代码处。一些分析写在 旁边的注释上。
在ReadFile 缓冲区为什么要给它头部内容替换成snlicdat#300024144#testUser#22/11/2025#(b)#cccccc 是因为它的校验是这样的。
在这个函数运行完返回，有个判断。汇编代码如下所示
0000000140036C74 | 48:8D46 18 | lea rax,qword ptr [rsi+0x18] | rsi+18:"C:\\Program Files\\USBTrace\\unins000.dat"
0000000140036C78 | 4C:8D8424 40010000 | lea r8,qword ptr [rsp+0x140] |
0000000140036C80 | 48:8D5424 20 | lea rdx,qword ptr [rsp+0x20] | [rsp+20]:"C:\\Program Files\\USBTrace\\unins000.dat"
0000000140036C85 | 48:8BCD | mov rcx,rbp |
0000000140036C88 | 48:894424 20 | mov qword ptr [rsp+0x20],rax | [rsp+20]:"C:\\Program Files\\USBTrace\\unins000.dat"
0000000140036C8D | E8 6EECFFFF | call usbtrace.140035900 | userName "尝试将下面两行代码nop掉看能不能过掉检测"
0000000140036C92 | 85C0 | test eax,eax |
0000000140036C94 | 0F84 C1000000 | je usbtrace.140036D5B |"发现将下面两行nop 软件已经成功运行而且各种功能都放开了限制"
0000000140036C9A | E8 CD810400 | call usbtrace.14007EE6C |
0000000140036C9F | 4C:8D8C24 40010000 | lea r9,qword ptr [rsp+0x140] |
0000000140036CA7 | 4C:8D05 CACB2100 | lea r8,qword ptr [0x140253878] | 0000000140253878:"UserName"
0000000140036CAE | 48:8B48 08 | mov rcx,qword ptr [rax+0x8] |
0000000140036CB2 | 48:8D15 CFCB2100 | lea rdx,qword ptr [0x140253888] | 0000000140253888:"RegInfo"
0000000140036CB9 | 48:8B01 | mov rax,qword ptr [rcx] |
0000000140036CBC | FF90 10010000 | call qword ptr [rax+0x110] |
0000000140036CC2 | 48:8D4C24 30 | lea rcx,qword ptr [rsp+0x30] |
0000000140036CC7 | BA 04010000 | mov edx,0x104 |
0000000140036CCC | FF15 5E592000 | call qword ptr [] |
0000000140036CD2 | 4C:8D05 2FE92100 | lea r8,qword ptr [0x140255608] | 0000000140255608:"\\system32\\"
0000000140036CD9 | 48:8D4C24 30 | lea rcx,qword ptr [rsp+0x30] |
0000000140036CDE | BA 04010000 | mov edx,0x104 |
0000000140036CE3 | E8 28231D00 | call |
结果
nop掉下面这个位置的两行汇编即可，只是每次启动需要选择一下license文件。不过所有功能都是正常的不影响后续使用。
0000000140036C92 | 85C0 | test eax,eax |
0000000140036C94 | 0F84 C1000000 | je usbtrace.140036D5B
本想写个生成license文件应用的，但是由于它有一段加密的结果是不可逆的，所以就没写了。将就着用吧。功能正常就行，唉。。。。。还是太菜了。
