Frida Il2cpp agent example using frida-il2cpp-bridge library. This project is designed so it can be used on a rooted android device with no need to use PC. It is very useful in unity il2cpp game reverse-engineering when the source is obfuscated.

Make sure that you have a rooted device and termux with root permissions. Install git, wget and nodeJS.

apt update && apt upgrade
apt install git wget nodejs tsu

Clone the agent repository

git clone https://github.com/acess0r/frida-il2cpp-agent
cd frida-il2cpp-agent/il2cpp-agent

Wget the frida-inject binary

wget https://github.com/frida/frida/releases/download/16.0.19/frida-inject-16.0.19-android-arm64.xz
unxz frida-inject-16.0.19-android-arm64.xz
mv frida-inject-16.0.19-android-arm64 frida64

Make it executable

chmod +x frida64

To build the agent first run npm install once, then run npm run build each time you edit the index.ts. To execute the script run

sudo ./frida64 -s _agent.js -f "com.android.package"