VirtualHook: A Java repository from linsmod

VirtualHook

Introduction

VirtualHook is a tool for hooking application without root permission. It is based on two projects:

VirtualApp. It's a plugin framework which allows running applications in its virtual space.
YAHFA. It's a hook framework for ART which allows hooking Java method of the application.

Currently VirtualHook supports:

Android 5.0(API 21)
Android 5.1(API 22)
Android 6.0(API 23)
Android 7.0(API 24)
Android 7.1(API 25)
Android 8.0(API 26)

ChangeLog

Basically, VirtualHook makes the following changes to the upstream:

Inject YAHFA when the app is started: https://github.com/rk700/VirtualHook/commit/5c530eeb241ba4ff5a3d34831b5c9af21ae4b0d8
~~Use MSHook instead of GodinHook: https://github.com/rk700/VirtualHook/commit/6ab8078d24e25d724b7d20b990f8589d02e8429c~~
Remove Admob and Flurry
Install hooks manually instead of loading them from sdcard automatically: https://github.com/rk700/VirtualHook/commit/a95ba5184c22d3e91953ff603f47e8955c7c4c49
Do preopt when installing plugins: https://github.com/rk700/VirtualHook/commit/c444f5e7c8c6628a498e16a56969c7e160ff6cb0

Build

Import and build the project in Android Studio(with Instant Run disabled). There are four modules:

app. This is the VirtualApp application module.
lib. This is the VirtualApp library module.
YAHFA. This is the YAHFA hook module.
demoHookPlugin. This is a demo hook plugin which compiles to an APK.

Usage

Write and build a hook plugin APK. You can take a look at the demoHookPlugin module for reference. Don't forget to put following meta-data in AndroidManifest.xml:

    <application
        android:label="@string/app_name">
        <meta-data
            android:name="yahfa.hook.plugin"
            android:value="true"
        />
    </application>

Push the plugin APK to sdcard
Run VirtualHook and click the Add button
Swipe to the 'APPS IN SDCARD' page. Then select and add hook plugins which are displayed with an icon
Add and run non-plugin apps

Example Hook Plugins