移动安全学习笔记（三）-Android安全-看雪-安全社区|安全招聘|kanxue.com

移动安全学习笔记（三）

发表于: 2023-2-16 11:49 23790

移动安全学习笔记（三）

简单的简单

2023-2-16 11:49

23790

环境配置较为繁琐，分为以下步骤

复制 XposedBridgeApi-82.jar 到工程中供使用

切换至 Project 模式，在app目录下新建文件夹lib，将 XposedBridgeApi-82.jar 复制到 app/lib 文件夹下

配置依赖

新建 Empty Activity 并在 AndroidManifest.xml 中添加代码

新建入口类 Main.java 并实现 IXposedHookLoadPackage 接口

复制入口类名

右键入口类 Main — Copy Path/Reference — Copy Reference

配置入口类名文件

app/src/main 文件夹下新建文件夹 assets，app/src/main/assets 文件夹下新建文件 xposed_init，将复制的入口类名粘贴在文件中即可

想要Hook某一个函数则需要得到该函数的三点关键信息

使用 replaceHookedMethod 方法 Hook TelephonyManager.getDeviceId() 函数

Main.java

findAndHookMethod 函数还有另一种重载方式

Main.java

Hook 程序自身实现的函数

Main.java

Hook 程序自身实现的函数还可以使用更加强大的 XC_MethodHook 方法，它内部需要实现两个方法，可以做到修改参数和修改返回值

Main.java

实现 Hook Person的构造方法

Main.java

实现对匿名内部类的 Hook

<meta-data android:name = "xposedmodule" android:value="true"/>

<meta-data android:name = "xposeddescription" android:value="Xposed模块示例"/>

<meta-data android:name = "xposedminversion" android:value="54"/>

<meta-data android:name = "xposedmodule" android:value="true"/>

<meta-data android:name = "xposeddescription" android:value="Xposed模块示例"/>

<meta-data android:name = "xposedminversion" android:value="54"/>

package com.example.xposeddemo;
 
import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.callbacks.XC_LoadPackage;
 
public class Main implements IXposedHookLoadPackage {
 
    @Override

    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {
 
    }
}

package com.example.xposeddemo;

import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

public class Main implements IXposedHookLoadPackage {

@Override

public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

}

package com.example.xposeddemo;
 
import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.XC_MethodReplacement;

import de.robv.android.xposed.XposedHelpers;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

import android.telephony.TelephonyManager;

public class Main implements IXposedHookLoadPackage {
 
    @Override

    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

        // 包名：      com.example.a1

        // 类名：      android.telephony.TelephonyManager

        // 方法原型：   public String getDeviceId()
 
        String packageName = loadPackageParam.packageName;

        if(!packageName.equals("com.example.a1"))

            return;

        XposedHelpers.findAndHookMethod(

                TelephonyManager.class, 

                "getDeviceId",

                new XC_MethodReplacement() {

            @Override

            protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {

                return "123456789";

            }

        });

    }
}

package com.example.xposeddemo;

import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.XC_MethodReplacement;

import de.robv.android.xposed.XposedHelpers;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

import android.telephony.TelephonyManager;

public class Main implements IXposedHookLoadPackage {

@Override

public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

// 包名： com.example.a1

// 类名： android.telephony.TelephonyManager

// 方法原型： public String getDeviceId()

String packageName = loadPackageParam.packageName;

if(!packageName.equals("com.example.a1"))

return;

XposedHelpers.findAndHookMethod(

TelephonyManager.class,

"getDeviceId",

new XC_MethodReplacement() {

@Override

protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {

return "123456789";

}

});

}

package com.example.xposeddemo;
 
import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.XC_MethodReplacement;

import de.robv.android.xposed.XposedHelpers;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

import android.telephony.TelephonyManager;

public class Main implements IXposedHookLoadPackage {
 
    @Override

    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

        // 包名：      com.example.a1

        // 类名：      android.telephony.TelephonyManager

        // 方法原型：   public String getDeviceId()
 
        String packageName = loadPackageParam.packageName;

        if(!packageName.equals("com.example.a1"))

            return;
 
        XposedHelpers.findAndHookMethod(

                "android.telephony.TelephonyManager",

                loadPackageParam.classLoader,

                "getDeviceId",

                new XC_MethodReplacement() {

            @Override

            protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {

                return "123456789";

            }

        });

    }
}

package com.example.xposeddemo;

import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.XC_MethodReplacement;

import de.robv.android.xposed.XposedHelpers;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

import android.telephony.TelephonyManager;

public class Main implements IXposedHookLoadPackage {

@Override

public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

// 包名： com.example.a1

// 类名： android.telephony.TelephonyManager

// 方法原型： public String getDeviceId()

String packageName = loadPackageParam.packageName;

if(!packageName.equals("com.example.a1"))

return;

XposedHelpers.findAndHookMethod(

"android.telephony.TelephonyManager",

loadPackageParam.classLoader,

"getDeviceId",

new XC_MethodReplacement() {

@Override

protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {

return "123456789";

}

});

}

package com.example.xposeddemo;
 
import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.XC_MethodReplacement;

import de.robv.android.xposed.XposedHelpers;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

public class Main implements IXposedHookLoadPackage {
 
    @Override

    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

        // 包名：      com.example.a2

        // 类名：      com.example.a2.MainActivity

        // 方法原型：   private boolean check(String str1, String str2)
 
        String packageName = loadPackageParam.packageName;

        if(!packageName.equals("com.example.a2"))

            return;

        XposedHelpers.findAndHookMethod(

                "com.example.a2.MainActivity",

                loadPackageParam.classLoader,

                "check",String.class,String.class,

                new XC_MethodReplacement() {

            @Override

            protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {

                return true;

            }

        });

    }
}

package com.example.xposeddemo;

import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.XC_MethodReplacement;

import de.robv.android.xposed.XposedHelpers;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

public class Main implements IXposedHookLoadPackage {

@Override

public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

// 包名： com.example.a2

// 类名： com.example.a2.MainActivity

// 方法原型： private boolean check(String str1, String str2)

String packageName = loadPackageParam.packageName;

if(!packageName.equals("com.example.a2"))

return;

XposedHelpers.findAndHookMethod(

"com.example.a2.MainActivity",

loadPackageParam.classLoader,

"check",String.class,String.class,

new XC_MethodReplacement() {

@Override

protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable {

return true;

}

});

}

package com.example.xposeddemo;
 
import android.util.Log;

import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.XC_MethodHook;

import de.robv.android.xposed.XposedBridge;

import de.robv.android.xposed.XposedHelpers;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

public class Main implements IXposedHookLoadPackage {
 
    @Override

    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

        // 包名：      com.example.a2

        // 类名：      com.example.a2.MainActivity

        // 方法原型：   private boolean check(String str1, String str2)
 
        String packageName = loadPackageParam.packageName;

        if(!packageName.equals("com.example.a2"))

            return;
 
        XposedHelpers.findAndHookMethod(

                "com.example.a2.MainActivity",

                loadPackageParam.classLoader,

                "check", String.class, String.class,

                new XC_MethodHook() {

                    @Override

                    protected void beforeHookedMethod(MethodHookParam param) throws Throwable {

                        super.beforeHookedMethod(param);

                        // 打印参数

                        Log.d("lxz","arg1:" + param.args[0]);

                        Log.d("lxz","arg2:" + param.args[1]);

                        // xposed输出日志

                        XposedBridge.log("arg1:" + param.args[0]);

                        XposedBridge.log("arg2:" + param.args[1]);

                        // 修改参数

                        param.args[0] = "lxz";

                        param.args[1] = "lxz";

                    }

                    @Override

                    protected void afterHookedMethod(MethodHookParam param) throws Throwable {

                        super.afterHookedMethod(param);

                        // xposed输出日志

                        XposedBridge.log("arg1:" + param.args[0]);

                        XposedBridge.log("arg2:" + param.args[1]);

                        // 修改返回值

                        param.setResult(true);

                    }

                });

    }
}

package com.example.xposeddemo;

import android.util.Log;

import de.robv.android.xposed.IXposedHookLoadPackage;

import de.robv.android.xposed.XC_MethodHook;

import de.robv.android.xposed.XposedBridge;

import de.robv.android.xposed.XposedHelpers;

import de.robv.android.xposed.callbacks.XC_LoadPackage;

public class Main implements IXposedHookLoadPackage {

@Override

public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {

// 包名： com.example.a2

// 类名： com.example.a2.MainActivity

// 方法原型： private boolean check(String str1, String str2)

String packageName = loadPackageParam.packageName;

if(!packageName.equals("com.example.a2"))

return;

XposedHelpers.findAndHookMethod(

"com.example.a2.MainActivity",

loadPackageParam.classLoader,

"check", String.class, String.class,

new XC_MethodHook() {

@Override

protected void beforeHookedMethod(MethodHookParam param) throws Throwable {

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最后于 2023-2-16 18:05 被简单的简单编辑，原因：

#基础理论 #HOOK注入

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