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https://github.com/ChickenHook/BinderHook
Library intended to hook Binder interface and manipulate events
https://github.com/ChickenHook/BinderHook
Last synced: about 2 months ago
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Library intended to hook Binder interface and manipulate events
- Host: GitHub
- URL: https://github.com/ChickenHook/BinderHook
- Owner: ChickenHook
- License: gpl-2.0
- Created: 2020-05-02T11:06:56.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2022-09-28T18:59:09.000Z (almost 2 years ago)
- Last Synced: 2024-06-01T23:35:30.237Z (4 months ago)
- Language: Java
- Size: 249 KB
- Stars: 103
- Watchers: 8
- Forks: 16
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
README
# BinderHook
Library intended to hook Binder interface and manipulate events
# Table of Contents
* [Description](#description)
* [Integration](#integration)
* [Usage](#usage)
* [Android Services](#android-services)
* [Interface Hooking](#interface-hooking)
* [Verbose mode](#verbose-mode)
* [Parcel](#parcel)
* [Parcel](#parcel)
* [Troubleshooting](#troubleshooting)
* [Other projects](#other-projects)
This library helps to hook binder communication between your App process and system services of Android.
# Integration
Just include the maven repository
1) In your root build.gradle:
```groovy
allprojects {
repositories {
[..]
jcenter()
maven { url "https://jitpack.io" }
}
}
```
2) In your library/build.gradle add:
```groovy
dependencies {
implementation 'com.github.ChickenHook:BinderHook:3.0'
implementation 'com.github.ChickenHook:RestrictionBypass:2.2'
}
```
# Usage
This chapter showcases how to use this hooking library. Also please have a look at [MainActivity.kt](app/src/main/java/org/chickenhook/chickenbinder/MainActivity.kt), [MainActivityTest.kt](androidTest/src/main/java/org/chickenhook/chickenbinder/MainActivityTest.kt) and [ServiceHooksTest.java](binderhooks/src/androidTest/java/org/chickenhook/binderhooks/ServiceHooksTest.java)
### Package Manager
Please check [AIDL Implementation](https://cs.android.com/android/platform/superproject/+/master:out/soong/.intermediates/frameworks/base/framework-minus-apex/android_common/xref28/srcjars.xref/frameworks/base/core/java/android/content/pm/IPackageManager.java;bpv=1;bpt=0)
in order to learn parcel encode / decode instructions
```kt
ServiceHooks.hookPackageManager(packageManager, object :
OnBinderListener() {
val DESCRIPTOR = "android.content.pm.IPackageManager"
override fun transact(
originalBinder: IBinder,
code: Int,
data: Parcel,
reply: Parcel?,
flags: Int
): Boolean {
if (code == 193) { // setHarmfulAppWarning
log("Manipulate setHarmfulAppWarning")
data.setDataPosition(0)
val _data = Parcel.obtain()
_data.writeInterfaceToken(DESCRIPTOR)
data.writeInterfaceToken(DESCRIPTOR)
val packageName = data.readString()
_data.writeString(packageName)
var message: CharSequence?
if (data.readInt() != 0) {
message = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(data)
_data.writeInt(1)
TextUtils.writeToParcel(message, _data, 0)
} else {
_data.writeInt(0)
message = null
}
val _flags = data.readInt()
_data.writeInt(1)
return originalBinder.transact(code, _data, reply, Binder.FLAG_ONEWAY)
}
if (code == 56) { // get installed packages
// try to manipulate this call
val _data = Parcel.obtain()
_data.writeInterfaceToken(DESCRIPTOR)
_data.writeInt(0)
_data.writeInt(0) // simulate system user?
return originalBinder.transact(code, _data, reply, flags)
}
return originalBinder.transact(code, data, reply, flags)
}
})
```
### ActivityManager
Please check [AIDL Implementation](https://cs.android.com/android/platform/superproject/+/master:out/soong/.intermediates/frameworks/base/framework-minus-apex/android_common/xref28/srcjars.xref/frameworks/base/core/java/android/app/IActivityManager.java;bpv=1;bpt=0)
in order to learn parcel encode / decode instructions
```kt
ServiceHooks.hookActivityManager(object :
OnBinderListener() {
val DESCRIPTOR = "android.app.IActivityManager"
override fun transact(
originalBinder: IBinder,
code: Int,
data: Parcel,
reply: Parcel?,
flags: Int
): Boolean {
if (code == 6) {// start activity
return startActivityHook(
originalBinder,
code,
data,
reply,
flags,
DESCRIPTOR
)
}
return originalBinder.transact(code, data, reply, flags)
}
})
```
### ActivityTaskManager
Please check [AIDL Implementation](https://cs.android.com/android/platform/superproject/+/master:out/soong/.intermediates/frameworks/base/framework-minus-apex/android_common/xref28/srcjars.xref/frameworks/base/core/java/android/app/IActivityManager.java;bpv=1;bpt=0)
in order to learn parcel encode / decode instructions
```kt
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
ServiceHooks.hookActivityTaskManager(object :
OnBinderListener() {
val DESCRIPTOR = "android.app.IActivityTaskManager"
override fun transact(
originalBinder: IBinder,
code: Int,
data: Parcel,
reply: Parcel?,
flags: Int
): Boolean {
if (code == 1) { // start activity
return startActivityHook(
originalBinder,
code,
data,
reply,
flags,
DESCRIPTOR
)
}
return originalBinder.transact(code, data, reply, flags)
}
})
```
### WindowManager
Please check [AIDL Implementation](https://cs.android.com/android/platform/superproject/+/master:out/soong/.intermediates/frameworks/base/framework-minus-apex/android_common/xref28/srcjars.xref/frameworks/base/core/java/android/view/IWindowManager.java;bpv=1;bpt=0)
in order to learn parcel encode / decode instructions
```
ServiceHooks.hookWindowManager(object :
OnBinderListener() {
override fun transact(
originalBinder: IBinder,
code: Int,
data: Parcel,
reply: Parcel?,
flags: Int
): Boolean {
return originalBinder.transact(code, data, reply, flags)
}
})
```
### Other services
A lot of other service hooks are also present. However some are missing and will come in future releases.
|Service Name|ImplementationStatus|
|---|---|
|ContentResolver|OK|
|NotificationManager|OK|
|ActivityManager|OK|
|AppOpsManager|OK|
|PackageManager|OK|
|WindowManager|OK|
|ActivityTaskManager|OK|
|AlarmManager|WIP|
|WallpaperManager|WIP|
|RoleService|WIP|
|CameraService|WIP|
|PrintService|WIP|
|TrustService|WIP|
|UsageStatsService|WIP|
|...|Feel free to submit feature requests if you need more services|
## Interface Hooking
If you just wanna change some args and not manipulate Parcel directly you can use ProxyListener:
```
ServiceHooks.hookActivityManager(new ProxyListener() {
@Override
public Object invoke(Object orig, Object proxy, Method method, Object[] args) throws Throwable {
if (method.getName().equals("startActivity") && args.length == 10) {
args[args.length - 3] = ((int) args[args.length - 3]) |
START_FLAG_DEBUG |
START_FLAG_TRACK_ALLOCATION |
START_FLAG_NATIVE_DEBUGGING;
}
return method.invoke(orig, args);
}
});
```
By adding these lines of code you can enable the verbose mode
```kt
ProxyHook.VERBOSE = true
```
This will create output like:
```
2020-05-03 22:03:40.309 25785-25785/org.chickenhook.chickenbinder I/BinderHook: ProxyHook [+] trace [+]
java.lang.Exception: Trace
at org.chickenhook.binderhooks.ProxyHook.doStackTrace(ProxyHook.java:128)
at org.chickenhook.binderhooks.ProxyHook$FakeBinder.transact(ProxyHook.java:111)
at android.content.pm.IPackageManager$Stub$Proxy.setHarmfulAppWarning(IPackageManager.java:8654)
at android.app.ApplicationPackageManager.setHarmfulAppWarning(ApplicationPackageManager.java:3234)
at java.lang.reflect.Method.invoke(Native Method)
at org.chickenhook.chickenbinder.MainActivity$onCreate$$inlined$apply$lambda$1.onClick(MainActivity.kt:40)
at android.view.View.performClick(View.java:7356)
at android.view.View.performClickInternal(View.java:7333)
at android.view.View.access$3600(View.java:807)
at android.view.View$PerformClick.run(View.java:28200)
at android.os.Handler.handleCallback(Handler.java:907)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7476)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:549)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:939)
```
and
```
2020-05-07 10:44:55.603 4911-4911/org.chickenhook.chickenbinder D/chickenbinder: dump parcel <0x7444767700>
2020-05-07 10:44:55.603 4911-4911/org.chickenhook.chickenbinder D/chickenbinder: ---------------------------------------------------------------------------------------------------------------------------------------------
2020-05-07 10:44:55.603 4911-4911/org.chickenhook.chickenbinder D/parcel: HEX (76 bytes):
2020-05-07 10:44:55.603 4911-4911/org.chickenhook.chickenbinder D/parcel: 04:00:00:C2:FF:FF:FF:FF:1C:00:00:00:61:00:6E:00:64:00:72:00:6F:00:69:00:64:00:2E:00:61:00:70:00:70:00:2E:00:49:00:41:00:63:00:74:00:69:00:76:00:69:00
2020-05-07 10:44:55.603 4911-4911/org.chickenhook.chickenbinder D/parcel: 74:00:79:00:4D:00:61:00:6E:00:61:00:67:00:65:00:72:00:00:00:00:00:61:13:00:00
2020-05-07 10:44:55.603 4911-4911/org.chickenhook.chickenbinder D/chickenbinder: ---------------------------------------------------------------------------------------------------------------------------------------------
```
for any transaction that went through your installed binder hook.
In order to work with existing parcels and be able to modify also restricted content like flattened Binder objects (aka writeStrongBinder, readStrongBinder) we added some low level edit functions.
### dump
This function dumps the content of the parcel as hexdump to logcat
```
ParcelEditor.dump(parcel);
```
### write
Write a bunch of bites at the given offset
```Java
byte[] bytes = new byte[]{
1, 2, 3
};
ParcelEditor.write(parcel, 0, bytes);
```
### read
Read a bunch of bytes from the given offset
```Java
byte[] content = ParcelEditor.read(parcel, 0, parcel.dataSize());
```
Please create a bug report if you find any issues. This chapter will be updated then.
| Project | Description |
|---------|-------------|
| [ChickenHook](https://github.com/ChickenHook/ChickenHook) | A linux / android / MacOS hooking framework |
| [BinderHook](https://github.com/ChickenHook/BinderHook) | Library intended to hook Binder interface and manipulate events |
| [RestrictionBypass](https://github.com/ChickenHook/RestrictionBypass) | Android API restriction bypass for all Android Versions |
| [AndroidManifestBypass](https://github.com/ChickenHook/AndroidManifestBypass) | Android API restriction bypass for all Android Versions |
| .. | |
## Sponsor
If you're happy with my library please order me a cup of coffee ;) Thanks.