An open-source tool that runs directly on a rooted Android device. It uses a custom runtime to create a new process, loads the target APK, forces GC (Garbage Collection), and dumps the DEX before protection activates.

: A dynamic instrumentation toolkit used to hook into the running process.

Jiagu often renames the original Application class. You can identify a Jiagu-protected app by looking for com.stub.StubApp in the AndroidManifest.xml .

For those who do not wish to flash a custom ROM, hooking frameworks like are the industry standard for unlocking packed apps.