shield 分享知识点

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作者:胡凯莉   
shield 分享知识点
1、hook NewStringUTF

  • 找到在so层 c语言字符串转化为jni中的jstring类型 使用的函数NewStringUTF(env,c中字符串)

  • var symbols = Module.enumerateSymbolsSync("libart.so");
    var addrNewStringUTF = null;
    for (var i = 0; i = 0 && symbol.name.indexOf("CheckJNI")

    2、hook 所有的interceptor

  • public class XhsHttpInterceptor implements Interceptor {
    //在so中创建请求头的值,并添加到request对象中,在继续执行下一个拦截器
    public native Response intercept(Interceptor.Chain chain, long j2) throws IOException;
    }

  • 拦截器中做的事情:
  • public native Response intercept(Interceptor.Chain chain, long j2)
  • 1、获取request对象  request = chain.request()
  • 2、使用request对象添加请求头
  • 3、执行下一个拦截器 chain.proceed(request)

  • //hook所有拦截器
    Java.perform(function () {
      var Builder = Java.use('okhttp3.OkHttpClient$Builder');
      Builder.addInterceptor.implementation = function (inter) {
          //console.log("实例化:");
          console.log(JSON.stringify(inter) );
          //console.log(Java.use("android.util.Log").getStackTraceString(Java.use("java.lang.Throwable").$new()));
          return this.addInterceptor(inter);
      };
    })
    //  frida -U -f com.xingin.xhs  -l 6.all_inter.js
    ""
    ""
    ""
    ""
    ""
    ""

    3、验证前后两个拦截器的内容 是否是在某个拦截器中生成的参数

  • 验证1:  com.xingin.shield.http.XhsHttpInterceptor

  • Java.perform(function () {
      var XhsHttpInterceptor = Java.use('com.xxx.shield.http.XhsHttpInterceptor');
      var Buffer = Java.use("okio.Buffer");
      var Charset = Java.use("java.nio.charset.Charset");
      XhsHttpInterceptor.intercept.overload('okhttp3.Interceptor$Chain').implementation = function (chain, j2) {
          console.log('\n--------------------请求来了--------------------');
          var request = chain.request();
          var urlString = request.url().toString();
          console.log("网址:")
          console.log(urlString)
          console.log("\n请求头:")
          console.log(request.headers().toString());
          var requestBody = request.body();
          if (requestBody) {
              var buffer = Buffer.$new();
              requestBody.writeTo(buffer);
              console.log("请求体:")
              console.log(buffer.readString(Charset.forName("utf8")));
          }
          var res = this.intercept(chain);
          return res;
      };
    })
    //  frida -UF  -l 8.next_request.js



  • 验证2 : p.d0.v1.e0.n0.h

  • Java.perform(function () {
      var XhsHttpInterceptor = Java.use('p.d0.v1.e0.n0.h');
      var Buffer = Java.use("okio.Buffer");
      var Charset = Java.use("java.nio.charset.Charset");
      XhsHttpInterceptor.intercept.overload('okhttp3.Interceptor$Chain').implementation = function (chain, j2) {
          console.log('\n--------------------请求来了--------------------');
          var request = chain.request();
          var urlString = request.url().toString();
          console.log("网址:")
          console.log(urlString)
          console.log("\n请求头:")
          console.log(request.headers().toString());
          var requestBody = request.body();
          if (requestBody) {
              var buffer = Buffer.$new();
              requestBody.writeTo(buffer);
              console.log("请求体:")
              console.log(buffer.readString(Charset.forName("utf8")));
          }
          var res = this.intercept(chain);
          return res;
      };
    })
    //  frida -UF  -l 8.next_request.js




  • 4、逆向

  • 判断so方法是静态方法 还是 实例方法

  • 静态方法 :

  • 方法格式如: public  static native Response intercept()   注意static

  • 直接  类.方法

  • 实例方法:

  • 格式 : public native Response intercept(Interceptor.Chain chain, long j2)

  • 需要实例化类对象:
  • 1 、 XhsHttpInterceptor  i1  =    new  XhsHttpInterceptor()
  • 2 、 Builder.addInterceptor(i1)
  • 3、  i1.intercept(chain, 10)

  • 注意:
  • 1  static中的内容要补全
  • 2  构造方法中的事情要补全



  • static {
          initializeNative();
      }
    1 public static native void initializeNative();
    public XhsHttpInterceptor(String str, a aVar) {
          this.cPtr = initialize(str);
          this.predicate = aVar;
      }
    2 public native long initialize(String str);
    3 public native Response intercept(Interceptor.Chain chain, long j2) throws IOException;

  • 注意: shield 请求头的值  不是通过返回值获取的  ,在intercept内部
  • request  = chain.request()
  • request.addHeader("shield","zzzxxx")
  • 补环境时遇到request对象和addHeader 方法时  注意看一下参数 是否是shield


    5、 补环境 initializeNative
  • 签名调用

    DvmClass cls = vm.resolveClass("com/xxx/shield/http/XhsHttpInterceptor");
            // 调用方法 StringObject---unidbg中
            cls.callStaticJniMethodObject(
                    emulator,
                    "initializeNative()V",
            );

  • 偏移地址调用

  • hook 函数地址的偏移

  • var symbols = Module.enumerateSymbolsSync("libart.so");
    var addrRegisterNatives = null;
    for (var i = 0; i = 0 &&
        symbol.name.indexOf("JNI") >= 0 &&
        symbol.name.indexOf("RegisterNatives") >= 0 &&
        symbol.name.indexOf("CheckJNI")

    if (addrRegisterNatives != null) {
    Interceptor.attach(addrRegisterNatives, {
    onEnter: function (args) {
    var env = args[0];
    var java_class = args[1];
    var class_name = Java.vm.tryGetEnv().getClassName(java_class);
    // 只有类名为com.xxx.nativelibrary.LibBili,才打印输出
    console.log(class_name);
    var taget_class = "com.xxx.shield.http.XhsHttpInterceptor";
            if (class_name === taget_class) {
                // console.log("\n[RegisterNatives] method_count:", args[3]);
                var methods_ptr = ptr(args[2]);
                var method_count = parseInt(args[3]);
                for (var i = 0; i
    }
    -----------------------------------或者下面----------------------------------------
    function find_RegisterNatives(params) {
    var symbols = Module.enumerateSymbolsSync("libart.so");
    var addrRegisterNatives = null;
    for (var i = 0; i
        //_ZN3art3JNI15RegisterNativesEP7_JNIEnvP7_jclassPK15JNINativeMethodi
        if (symbol.name.indexOf("art") >= 0 &&
                symbol.name.indexOf("JNI") >= 0 &&
                symbol.name.indexOf("RegisterNatives") >= 0 &&
                symbol.name.indexOf("CheckJNI")
    }
    function hook_RegisterNatives(addrRegisterNatives) {
    if (addrRegisterNatives != null) {
        Interceptor.attach(addrRegisterNatives, {
            onEnter: function (args) {
                console.log("[RegisterNatives] method_count:", args[3]);
                var java_class = args[1];
                var class_name = Java.vm.tryGetEnv().getClassName(java_class);
                //console.log(class_name);
                var methods_ptr = ptr(args[2]);
                var method_count = parseInt(args[3]);
                for (var i = 0; i
    }
    setImmediate(find_RegisterNatives);
    ![image-20230625161958473](https://img-pool-own.oss-cn-shanghai.aliyuncs.com/img/image-20230625161958473.png)

  • ArrayList args = new ArrayList(10);
    args.add(vm.getJNIEnv());   args.add(vm.addLocalObject(vm.resolveClass("com/xxx/shield/http/XhsHttpInterceptor")));
    module.callFunction(
      emulator,
      0x94289,
      args.toArray()
          );
    --------------------------------------------------------------
    module.callFunction(emulator,
                   0x94289,
                   vm.getJNIEnv(),
      vm.addLocalObject(vm.resolveClass("com/xxx/shield/http/XhsHttpInterceptor")) //jclass
                  );

  • 补环境

  • java.lang.UnsupportedOperationException: java/nio/charset/Charset->defaultCharset()Ljava/nio/charset/Charset;
          at com.github.unidbg.linux.android.dvm.AbstractJni.callStaticObjectMethodV(AbstractJni.java:503)

  • @Override
    public DvmObject callStaticObjectMethodV(BaseVM vm, DvmClass dvmClass, String signature, VaList vaList) {
        if (signature.equals("java/nio/charset/Charset->defaultCharset()Ljava/nio/charset/Charset;")){
            return vm.resolveClass("java/nio/charset/Charset").newObject(Charset.defaultCharset());
        }
        return super.callStaticObjectMethodV(vm, dvmClass, signature, vaList);
    }

  • 需要hook一下参数   静态字段  .value 获取值


  • Java.perform(function () {
    var ContextHolder = Java.use('com.xxxx.shield.http.ContextHolder');
    console.log('sAppId=',ContextHolder.sAppId.value);
    console.log('sDeviceId=',ContextHolder.sDeviceId.value);
    })


    6、 补环境 initialize


  • 注意返回值是long

  • public long initialize (){
          Number number = module.callFunction(emulator,
                  0x937B1,
                  vm.getJNIEnv(),
                  vm.addLocalObject(vm.resolveClass("com/xingin/shield/http/XhsHttpInterceptor")), //jclass
                  vm.addLocalObject(new StringObject(vm,"main"))
          );
          return number.longValue();
      }

  • hook时机: 在加载so文件后进行hook

  • function do_hook() {
    setTimeout(function () {
        Java.perform(function () {
            var XhsHttpInterceptor = Java.use('com.xxx.shield.http.XhsHttpInterceptor');
            XhsHttpInterceptor.initialize.implementation = function (str) {
                console.log("str=", str);
                return this.initialize(str);
            };
        })
    }, 40);
    }

    function load_so_and_hook() {
    var dlopen = Module.findExportByName(null, "dlopen");
    var android_dlopen_ext = Module.findExportByName(null, "android_dlopen_ext");
    Interceptor.attach(dlopen, {
        onEnter: function (args) {
            var path_ptr = args[0];
            var path = ptr(path_ptr).readCString();
            // console.log("[dlopen:]", path);
            this.path = path;
        }, onLeave: function (retval) {
            if (this.path.indexOf("libshield.so") !== -1) {
                console.log("[dlopen:]", this.path);
                do_hook();
            }
        }
    });
    Interceptor.attach(android_dlopen_ext, {
        onEnter: function (args) {
            var path_ptr = args[0];
            var path = ptr(path_ptr).readCString();
            this.path = path;
        }, onLeave: function (retval) {
            if (this.path.indexOf("libshield.so") !== -1) {
                console.log("\nandroid_dlopen_ext加载:", this.path);
                do_hook();
            }
        }
    });
    }
    load_so_and_hook();
    - ![image-20230626092434920](https://img-pool-own.oss-cn-shanghai.aliyuncs.com/img/image-20230626092434920.png)

    getSharedPreferences

  • 开发时 读取xml文件会使用这个api

  • SharedPreferences  sp  = getSharedPreferences("s",0)//第一个参数是xml文件的名字,第二个参数是模式
    String  token = sp.getString("main","");//读取xml文件中内容

  • public DvmObject callObjectMethodV(BaseVM vm, DvmObject dvmObject, String signature, VaList vaList) {
          if (signature.equals("android/content/Context->getSharedPreferences(Ljava/lang/String;I)Landroid/content/SharedPreferences;")){
              String xmlName =  vaList.getObjectArg(0).getValue().toString();
              System.out.println("xmlName : " + xmlName);
              return vm.resolveClass("android.content.SharedPreferences")
                      .newObject(null);
          }
          if (signature.equals("android/content/SharedPreferences->getString(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;")){
              String arg1 = vaList.getObjectArg(0).getValue().toString();
              String arg2 = vaList.getObjectArg(1).getValue().toString();
              System.out.println("key : " + arg1);
              System.out.println(arg2);
          }
          return super.callObjectMethodV(vm, dvmObject, signature, vaList);
      }




  • 没有mian的值 返回空即可


    Base64

  • base64 补的是标准的base64   注意不要导包导错了

  • import org.apache.commons.codec.binary.Base64;
    byte[] decode = Base64.decodeBase64(arg1);

    7、 补环境 intercept
    public native Response intercept(Interceptor.Chain chain, long j2) throws IOException;

  • 如果要执行  必须要传入参数

  • chain 这个参数流程可以猜测如下

  • ```.
    1、request = chain.request
    2、读取request中的内容

  • 1 可以直接传空值  然后看后面读取什么补什么

  • 2 在Unidbg中引用okhttp3  构造一个真的chain对象


    引用okhttp3

  •   com.squareup.okhttp3
      okhttp
      3.10.0



  • shield 分享知识点
    1、hook NewStringUTF

  • 找到在so层 c语言字符串转化为jni中的jstring类型 使用的函数NewStringUTF(env,c中字符串)

  • var symbols = Module.enumerateSymbolsSync("libart.so");
    var addrNewStringUTF = null;
    for (var i = 0; i = 0 && symbol.name.indexOf("CheckJNI")

    2、hook 所有的interceptor

  • public class XhsHttpInterceptor implements Interceptor {
    //在so中创建请求头的值,并添加到request对象中,在继续执行下一个拦截器
    public native Response intercept(Interceptor.Chain chain, long j2) throws IOException;
    }

  • 拦截器中做的事情:
  • public native Response intercept(Interceptor.Chain chain, long j2)
  • 1、获取request对象  request = chain.request()
  • 2、使用request对象添加请求头
  • 3、执行下一个拦截器 chain.proceed(request)

  • //hook所有拦截器
    Java.perform(function () {
      var Builder = Java.use('okhttp3.OkHttpClient$Builder');
      Builder.addInterceptor.implementation = function (inter) {
          //console.log("实例化:");
          console.log(JSON.stringify(inter) );
          //console.log(Java.use("android.util.Log").getStackTraceString(Java.use("java.lang.Throwable").$new()));
          return this.addInterceptor(inter);
      };
    })
    //  frida -U -f com.xingin.xhs  -l 6.all_inter.js
    ""
    ""
    ""
    ""
    ""
    ""

    3、验证前后两个拦截器的内容 是否是在某个拦截器中生成的参数

  • 验证1:  com.xingin.shield.http.XhsHttpInterceptor

  • Java.perform(function () {
      var XhsHttpInterceptor = Java.use('com.xxx.shield.http.XhsHttpInterceptor');
      var Buffer = Java.use("okio.Buffer");
      var Charset = Java.use("java.nio.charset.Charset");
      XhsHttpInterceptor.intercept.overload('okhttp3.Interceptor$Chain').implementation = function (chain, j2) {
          console.log('\n--------------------请求来了--------------------');
          var request = chain.request();
          var urlString = request.url().toString();
          console.log("网址:")
          console.log(urlString)
          console.log("\n请求头:")
          console.log(request.headers().toString());
          var requestBody = request.body();
          if (requestBody) {
              var buffer = Buffer.$new();
              requestBody.writeTo(buffer);
              console.log("请求体:")
              console.log(buffer.readString(Charset.forName("utf8")));
          }
          var res = this.intercept(chain);
          return res;
      };
    })
    //  frida -UF  -l 8.next_request.js



  • 验证2 : p.d0.v1.e0.n0.h

  • Java.perform(function () {
      var XhsHttpInterceptor = Java.use('p.d0.v1.e0.n0.h');
      var Buffer = Java.use("okio.Buffer");
      var Charset = Java.use("java.nio.charset.Charset");
      XhsHttpInterceptor.intercept.overload('okhttp3.Interceptor$Chain').implementation = function (chain, j2) {
          console.log('\n--------------------请求来了--------------------');
          var request = chain.request();
          var urlString = request.url().toString();
          console.log("网址:")
          console.log(urlString)
          console.log("\n请求头:")
          console.log(request.headers().toString());
          var requestBody = request.body();
          if (requestBody) {
              var buffer = Buffer.$new();
              requestBody.writeTo(buffer);
              console.log("请求体:")
              console.log(buffer.readString(Charset.forName("utf8")));
          }
          var res = this.intercept(chain);
          return res;
      };
    })
    //  frida -UF  -l 8.next_request.js




  • 4、逆向

  • 判断so方法是静态方法 还是 实例方法

  • 静态方法 :

  • 方法格式如: public  static native Response intercept()   注意static

  • 直接  类.方法

  • 实例方法:

  • 格式 : public native Response intercept(Interceptor.Chain chain, long j2)

  • 需要实例化类对象:
  • 1 、 XhsHttpInterceptor  i1  =    new  XhsHttpInterceptor()
  • 2 、 Builder.addInterceptor(i1)
  • 3、  i1.intercept(chain, 10)

  • 注意:
  • 1  static中的内容要补全
  • 2  构造方法中的事情要补全



  • static {
      initializeNative();
    }
    1 public static native void initializeNative();
    public XhsHttpInterceptor(String str, a aVar) {
    this.cPtr = initialize(str);
    this.predicate = aVar;
    }
    2 public native long initialize(String str);
    3 public native Response intercept(Interceptor.Chain chain, long j2) throws IOException;

  • 注意: shield 请求头的值  不是通过返回值获取的  ,在intercept内部
  • request  = chain.request()
  • request.addHeader("shield","zzzxxx")
  • 补环境时遇到request对象和addHeader 方法时  注意看一下参数 是否是shield


    5、 补环境 initializeNative
  • 签名调用

    DvmClass cls = vm.resolveClass("com/xxx/shield/http/XhsHttpInterceptor");
            // 调用方法 StringObject---unidbg中
            cls.callStaticJniMethodObject(
                    emulator,
                    "initializeNative()V",
            );

  • 偏移地址调用

  • hook 函数地址的偏移

  • var symbols = Module.enumerateSymbolsSync("libart.so");
    var addrRegisterNatives = null;
    for (var i = 0; i = 0 &&
        symbol.name.indexOf("JNI") >= 0 &&
        symbol.name.indexOf("RegisterNatives") >= 0 &&
        symbol.name.indexOf("CheckJNI")

    if (addrRegisterNatives != null) {
    Interceptor.attach(addrRegisterNatives, {
    onEnter: function (args) {
    var env = args[0];
    var java_class = args[1];
    var class_name = Java.vm.tryGetEnv().getClassName(java_class);
    // 只有类名为com.xxx.nativelibrary.LibBili,才打印输出
    console.log(class_name);
    var taget_class = "com.xxx.shield.http.XhsHttpInterceptor";
            if (class_name === taget_class) {
                // console.log("\n[RegisterNatives] method_count:", args[3]);
                var methods_ptr = ptr(args[2]);
                var method_count = parseInt(args[3]);
                for (var i = 0; i
    }
    -----------------------------------或者下面----------------------------------------
    function find_RegisterNatives(params) {
    var symbols = Module.enumerateSymbolsSync("libart.so");
    var addrRegisterNatives = null;
    for (var i = 0; i
        //_ZN3art3JNI15RegisterNativesEP7_JNIEnvP7_jclassPK15JNINativeMethodi
        if (symbol.name.indexOf("art") >= 0 &&
                symbol.name.indexOf("JNI") >= 0 &&
                symbol.name.indexOf("RegisterNatives") >= 0 &&
                symbol.name.indexOf("CheckJNI")
    }
    function hook_RegisterNatives(addrRegisterNatives) {
    if (addrRegisterNatives != null) {
        Interceptor.attach(addrRegisterNatives, {
            onEnter: function (args) {
                console.log("[RegisterNatives] method_count:", args[3]);
                var java_class = args[1];
                var class_name = Java.vm.tryGetEnv().getClassName(java_class);
                //console.log(class_name);
                var methods_ptr = ptr(args[2]);
                var method_count = parseInt(args[3]);
                for (var i = 0; i
    }
    setImmediate(find_RegisterNatives);
    ![image-20230625161958473](https://img-pool-own.oss-cn-shanghai.aliyuncs.com/img/image-20230625161958473.png)

  • ArrayList args = new ArrayList(10);
    args.add(vm.getJNIEnv());   args.add(vm.addLocalObject(vm.resolveClass("com/xxx/shield/http/XhsHttpInterceptor")));
    module.callFunction(
      emulator,
      0x94289,
      args.toArray()
          );
    --------------------------------------------------------------
    module.callFunction(emulator,
                   0x94289,
                   vm.getJNIEnv(),
      vm.addLocalObject(vm.resolveClass("com/xxx/shield/http/XhsHttpInterceptor")) //jclass
                  );

  • 补环境

  • java.lang.UnsupportedOperationException: java/nio/charset/Charset->defaultCharset()Ljava/nio/charset/Charset;
    at com.github.unidbg.linux.android.dvm.AbstractJni.callStaticObjectMethodV(AbstractJni.java:503)

  • @Override
    public DvmObject callStaticObjectMethodV(BaseVM vm, DvmClass dvmClass, String signature, VaList vaList) {
        if (signature.equals("java/nio/charset/Charset->defaultCharset()Ljava/nio/charset/Charset;")){
            return vm.resolveClass("java/nio/charset/Charset").newObject(Charset.defaultCharset());
        }
        return super.callStaticObjectMethodV(vm, dvmClass, signature, vaList);
    }

  • 需要hook一下参数   静态字段  .value 获取值


  • Java.perform(function () {
    var ContextHolder = Java.use('com.xxxx.shield.http.ContextHolder');
    console.log('sAppId=',ContextHolder.sAppId.value);
    console.log('sDeviceId=',ContextHolder.sDeviceId.value);
    })


    6、 补环境 initialize


  • 注意返回值是long

  • public long initialize (){
          Number number = module.callFunction(emulator,
                  0x937B1,
                  vm.getJNIEnv(),
                  vm.addLocalObject(vm.resolveClass("com/xingin/shield/http/XhsHttpInterceptor")), //jclass
                  vm.addLocalObject(new StringObject(vm,"main"))
          );
          return number.longValue();
      }

  • hook时机: 在加载so文件后进行hook

  • function do_hook() {
    setTimeout(function () {
        Java.perform(function () {
            var XhsHttpInterceptor = Java.use('com.xxx.shield.http.XhsHttpInterceptor');
            XhsHttpInterceptor.initialize.implementation = function (str) {
                console.log("str=", str);
                return this.initialize(str);
            };
        })
    }, 40);
    }

    function load_so_and_hook() {
    var dlopen = Module.findExportByName(null, "dlopen");
    var android_dlopen_ext = Module.findExportByName(null, "android_dlopen_ext");
    Interceptor.attach(dlopen, {
        onEnter: function (args) {
            var path_ptr = args[0];
            var path = ptr(path_ptr).readCString();
            // console.log("[dlopen:]", path);
            this.path = path;
        }, onLeave: function (retval) {
            if (this.path.indexOf("libshield.so") !== -1) {
                console.log("[dlopen:]", this.path);
                do_hook();
            }
        }
    });
    Interceptor.attach(android_dlopen_ext, {
        onEnter: function (args) {
            var path_ptr = args[0];
            var path = ptr(path_ptr).readCString();
            this.path = path;
        }, onLeave: function (retval) {
            if (this.path.indexOf("libshield.so") !== -1) {
                console.log("\nandroid_dlopen_ext加载:", this.path);
                do_hook();
            }
        }
    });
    }
    load_so_and_hook();
    - ![image-20230626092434920](https://img-pool-own.oss-cn-shanghai.aliyuncs.com/img/image-20230626092434920.png)

    getSharedPreferences

  • 开发时 读取xml文件会使用这个api

  • SharedPreferences  sp  = getSharedPreferences("s",0)//第一个参数是xml文件的名字,第二个参数是模式
    String  token = sp.getString("main","");//读取xml文件中内容

  • public DvmObject callObjectMethodV(BaseVM vm, DvmObject dvmObject, String signature, VaList vaList) {
          if (signature.equals("android/content/Context->getSharedPreferences(Ljava/lang/String;I)Landroid/content/SharedPreferences;")){
              String xmlName =  vaList.getObjectArg(0).getValue().toString();
              System.out.println("xmlName : " + xmlName);
              return vm.resolveClass("android.content.SharedPreferences")
                      .newObject(null);
          }
          if (signature.equals("android/content/SharedPreferences->getString(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;")){
              String arg1 = vaList.getObjectArg(0).getValue().toString();
              String arg2 = vaList.getObjectArg(1).getValue().toString();
              System.out.println("key : " + arg1);
              System.out.println(arg2);
          }
          return super.callObjectMethodV(vm, dvmObject, signature, vaList);
      }




  • 没有mian的值 返回空即可


    Base64

  • base64 补的是标准的base64   注意不要导包导错了

  • import org.apache.commons.codec.binary.Base64;
    byte[] decode = Base64.decodeBase64(arg1);

    7、 补环境 intercept
    public native Response intercept(Interceptor.Chain chain, long j2) throws IOException;

  • 如果要执行  必须要传入参数

  • chain 这个参数流程可以猜测如下

  • ```.
    1、request = chain.request
    2、读取request中的内容

  • 1 可以直接传空值  然后看后面读取什么补什么

  • 2 在Unidbg中引用okhttp3  构造一个真的chain对象


    引用okhttp3

  •   com.squareup.okhttp3
      okhttp
      3.10.0



  • 参数, 方法

  • 风未眠   

    谢谢分享
    moruye   

    文章很详细,刚好可以研究研究
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