原文地址:http://blog.csdn.net/coc_k/article/details/52584059?locationNum=2&fps=1
简介:Xposed框架是一款可以在不修改APK的情况下影响程序运行的框架服务,通过替换/system/bin/app_process程序控制zygote进程,使得app_process在启动过程中会加载XposedBridge.jar这个jar包,从而完成对Zygote进程及其创建的虚拟机的劫持。
Github地址:https://github.com/rovo89/Xposed
首先我们Hook无参数的函数
1.建立一个空工程,编写获取序列号的简单例子
1.获取手机状态需要设置权限
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
2.编写布局文件
<TextView android:id="@+id/tv1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" /><TextView android:id="@+id/tv2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" />
3. 编写主 Activity 类中的 onCreate 函数
package com.cockroach.hook_object;import android.content.Context;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.telephony.TelephonyManager;import android.widget.TextView;public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextView tv1 = (TextView) findViewById(R.id.tv1); TextView tv2 = (TextView) findViewById(R.id.tv2); TelephonyManager tm = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE); tv1.setText("imei:" + tm.getDeviceId()); tv2.setText("imsi:" + tm.getSubscriberId()); }}
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4. 完成安装,运行效果如下:
这就是我们的等会要hook的apk程序,下面编写xposed插件
2.建立一个无 activity 的工程, 编写 Xposed 插件
1. 设置清单文件
在 application 标签中增加模块说明信息
<application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:supportsRtl="true" android:theme="@style/AppTheme"> <meta-data android:name="xposedmodule" android:value="true"></meta-data> <meta-data android:name="xposeddescription" android:value="qq迅雷提速神器"></meta-data> <meta-data android:name="xposedminversion" android:value="54"></meta-data></application>
2. 导入 xposed 库文件
将 xposed 库文件 XposedBridgeApi-XX.jar, 放入 app/lib 文件夹下
需要注意的是: 修改 Scope 为 Provided
3. 创建一个类, Main, 实现 xposed 中的接口 IXposedHookLoadPackage 并重写方法handleLoadPackage
package com.cockroach.xposedhookdemo;import android.telephony.TelephonyManager;import de.robv.android.xposed.IXposedHookLoadPackage;import de.robv.android.xposed.XC_MethodReplacement;import de.robv.android.xposed.XposedBridge;import de.robv.android.xposed.XposedHelpers;import de.robv.android.xposed.callbacks.XC_LoadPackage;/** * Created by 18459 on 2016/6/27. */public class Main implements IXposedHookLoadPackage{ @Override public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable { if(!loadPackageParam.packageName.equals("com.cockroach.hook_object")) return; XposedBridge.log("Loaded app: " + loadPackageParam.packageName); XposedHelpers.findAndHookMethod(TelephonyManager.class, "getSubscriberId", new XC_MethodReplacement() { @Override protected Object replaceHookedMethod(MethodHookParam methodHookParam) throws Throwable { return "Hook 成功了 哈哈!!!"; } }); }}
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4. 声明主入口类路径
需要在 main 文件夹下建立 assets 文件夹中新建一个 xposed_init 的文件,并在其中声明主入口类
到这里这个hook无参函数的简单demo插件就完成了,
然后我们hook有参数的函数
1.建立一个空工程,编写一个登陆界面,用自定义的一个方法
布局文件中添加
<EditText android:id="@+id/et1" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="请输入你的账号"/><EditText android:id="@+id/et2" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="请输入你的密码"/><Button android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="my_onClick" android:text="登陆" android:textSize="26dp"/>
MainActivity中添加
public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } public void my_onClick(View view) { EditText editText = (EditText) findViewById(R.id.et1); EditText editText1 = (EditText) findViewById(R.id.et2); String string = editText.getText().toString(); String string1 = editText1.getText().toString(); if(CheckRegister(string,string1)){ Toast.makeText(MainActivity.this,"登陆成功",Toast.LENGTH_SHORT).show(); } else { Toast.makeText(MainActivity.this,"登陆失败",Toast.LENGTH_SHORT).show(); } } private boolean CheckRegister(String string, String string1) { return string.equals(string1); }}
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效果,两个输入框输入相同时 提示登陆成功,不同时 提示登陆失败
到这里测试app完成
2.接下来我们HOOK CheckRegister方法,达到不管输入什么,都提示登陆成功
这里配置和前面无参插件编写一样,只需修改MainActivity
package com.cockroach.xposedhookdemo;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;/** * Created by 18459 on 2016/6/27. */public class Main implements IXposedHookLoadPackage{ String packName = "com.cockroach.myapplication"; String className = "com.cockroach.myapplication.MainActivity"; public void handleLoadPackage(XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable { if(!loadPackageParam.packageName.equals(packName)) return; XposedBridge.log("Loaded app: " + loadPackageParam.packageName); XposedHelpers.findAndHookMethod(className, loadPackageParam.classLoader, "CheckRegister", String.class, String.class, new XC_MethodHook() { @Override protected void beforeHookedMethod(MethodHookParam param) throws Throwable { super.beforeHookedMethod(param); Log.d("xposedplugin", (String) param.args[0]); Log.d("xposedplugin", (String) param.args[1]); param.args[0] = "123"; param.args[1] = "123"; param.setResult(true); } @Override protected void afterHookedMethod(MethodHookParam param) throws Throwable { super.afterHookedMethod(param); Log.d("xposedplugin", (String) param.args[0]); Log.d("xposedplugin", (String) param.args[1]); } }); }}
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到这里hook有参函数的插件完成了
测试app有了, 插件app有了,我们如何去使用?
上面我们写了共写了两个测试app和两个插件app,我们用第一对app,来做测试
1.在root后的手机上安装xposed框架app,然后进入app,选择 框架->安装更新,此时会重启,
2.将测试apk和插件apk都安装到手机上, 当插件apk安装到手机上时,框架xposed app会检测到插件,
3.进入框架app,选择 模块,选中我们写的插件,然后重启手机
开机后我们运行测试app,看到已经hook成功了
hook之后运行测试app
如果你是新手,没看明白可以问我,也许可以帮到你。