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jtrace

Refer to JNI-Frida-Hook

Add more detailed jni information printing, with the main purpose of assisting unidbg to supplement the environment

Complete

Prepare

pip install frida==14.2.18
pip install frida-tools==9.2.4
pip install objection==1.11.0
pip install hexdump
npm install

Use

frida -U -n com.xingin.xhs -l _agent.js -o jni.log
frida -U -f com.xingin.xhs -l _agent.js -o jni.log --no-pause
frida -U -f com.iqiyi.i18n -l _agent.js -o jni.log --no-pause
frida -U -f com.cmcc.cmvideo.miguc -l _agent.js -o jni.log --no-pause

Due to different systems and frida versions embodying different systems, there are two versions

  • _agent.js Faster, but may not be supported in some environments
    • Compile command npm run build
  • _agent_stable.js 兼容性更好
    • Compile command npm run build-stable

There is no difference in the core key code, the main difference is that the stable version puts some calls in Java.perform

Tips! The script is being improved, please adjust the script yourself

Features

  • The log matches unidbg, and the environmental efficiency is improved
  • Friendly to attach mode
  • Easy to read code

Illustrate

  • show_cache_log Used to decide whether to print the information of the following jni methods
    • GetFieldID
    • GetStaticFieldID
    • GetMethodID
    • GetStaticMethodID