Skip to main content

Android Hooking: Writing Xposed Modules

1. Declare the module in AndroidManifest.xml

<manifest xmlns:android=""
    android:versionName="1.0" >

        android:targetSdkVersion="15" />

        android:theme="@style/AppTheme" >
            android:value="true" />
            android:value="List APP Modules and hook Some funtions" />
            android:value="30" />


2. Create a text file called xposed_init (without .txt) in your assets folder with your main class as the content.

& also create a directory named "lib" inside your project and  add XPosedBridgeAPI.jar in it.

Xposed Module Writing

3. Inject package loading process using handleLoadPackage() method

public void handleLoadPackage(final LoadPackageParam lpparam) throws Throwable {
    if (!lpparam.packageName.equals(""))
    XposedBridge.log("we are in SystemUI!");

4. Hook and replace your methods of choice. Don't forget to static import this method:

import static;

Run your code before/after a method. You can determine the returned result of the method using theMethodHookParam.

findAndHookMethod(" ", lpparam.classLoader, "isThisTheMethodToBeHooked", new XC_MethodHook() {
    protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
        // this will be called before the original method is executed
        if (somethingHappens) {
            // modify the result of the original method

    protected void afterHookedMethod(MethodHookParam param) throws Throwable {
        // this will be called after
You can also replace the method completely. If the function has some params, make sure you include them in the findAndHookMethod function call.

findAndHookMethod("com.example.SomeClass", loadPackageParam.classLoader, "getAudioEnabled", Context.class, String.class, new XC_MethodReplacement() {
    protected Object replaceHookedMethod(MethodHookParam param) throws Throwable {
        return true;



Popular posts from this blog

Hacking Windows 10 UWP App: DLL Injection & common Vulnerabilities

I recently started working on  widows 10 Apps( Apps not Applications) security. Before diving deep in hacking terms lets try to understand what's new in Windows 10 UWP( Universal Platform) as compared to old Apps. Lets begin with how apps actually work on windows 10(desktop/tablet). Now windows 10 comes with a container only for running apps inside the isolated environment. By default, /APPCONTAINER(Linker Flag) is off. This option modifies an executable to indicate whether the app must be run in the appcontainer process-isolation environment. Specify /APPCONTAINER for an app that must run in the appcontainer environment—for example, a Windows Store app. (The option is set automatically in Visual Studio when you create a Windows Store app from a template.) For a desktop app, specify /APPCONTAINER:NO or just omit the option. The /APPCONTAINER option was introduced in Windows 8. Now there is no registry entry concept for these app in the System HIVE rather they install they own hiv

Animated Cursor Vulnerability

Step1: create two file on attacker side 1) default index.html and 2) cursor file to load Now save the proof of concept in a txt file(cursor.txt). use above command to cut down the hex part from proof of concept and paste it in buffer.ani Step2 :upload the above two files in your apache webserver.  Step3: Try to open index.html from window-xp and analyse the behavior of IE using ollydgb in order to find the offset address where EIP will get over written. Attach IE in ollydgb and put malicious url in it. As we can see now that EIP is overwritten with 42424242 that means this place is our offset. Now we will put the address of jump instruction in place of 42424242 which we will get from user32.dll by searching for command JUMP DWORD [EBX],now we jumped at ebx because it contain the malicious .ani file address. Just go into view=>executable=>user32.dll , press enter. Now try to find a jump [ebx] instruction in user32.dll by pressing ctrl

Assignment 01(Enroll TO Offensive-Security Course)

Steps 1:download the page. 2:open fc4.js in your favourite editor and add following lines in it or just replace it with vode given below. 3:then open the download html file in browser and fill the form with your email and a garbage value string. 4:thats it? it will show you the real security string?? yeah but  ...theirs another challenge waiting for you ... :D function fc4me(srvstr) {    if(! || !document.pleazfc4me.securitystring.value) {       alert("Please fill in all the required fields!");       return false;    }    else {       document.pleazfc4me.submit();     }    var t=hexMD5("\x74\x72\x79\x68\x61\x72\x64\x65\x72"+srvstr) alert(t) document.write(t) } Finally Got In :-)