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ts-ue4dumper

Using TypeScript and Frida to do UE4dump, highly based on project frida-ue4dump. But it is more modular, and uses C++ to get offsets, making it easier to read and modify.

What should you do before using it

  1. Manually find the offset in libUE4.so and replace them in utils/GAME.cpp
  2. Modify CMakeList.txt to build your own so, or use the so in utils/output. libUE4Offset_1.so for com.netease.race, and libUE4Offset_2.so for com.ShuiSha.FPS2 or other game that has standard offset.
  3. push the offset-so to the phone

How to compile & load

$ git clone https://github.com/yring-me/ts-ue4dumper.git
$ cd frida-agent/
$ npm install
$ adb push ./utils/output/libUE4Offset_1.so /data/local/tmp/libUE4Offset.so
$ frida -U -f com.example.android --no-pause -l _agent.js

How to dump

In frida terminal

$ rpc.exports.DumpSdk()
$ rpc.exports DumpActor()

In terminal

adb pull /sdcard/dump.txt dump.txt

Development workflow

To continuously recompile on change, keep this running in a terminal:

$ npm run watch

To switch the Game between com.netease.race and com.ShuiSha.FPS2 , in utils/GAME.h

#define COM_NETEASE_RACE 1 // true for com.netease.race, false for com.ShuiSha.FPS2 or standard offset

Some issues

  1. dlopen failed: couldn't map "/data/local/tmp/xxx.so" segment 1: Permission denied 
$ adb shell
$ su
$ getenforce  // output: Enforcing
$ setenforce 0
$ getenforce  // output: Permissive