Frida

Dynamic instrumentation — inject JavaScript into running processes to hook, trace, and modify behavior at runtime.

Installation

# CLI tools
pip install frida-tools

# Python bindings
pip install frida

# For Android: push frida-server to device
# Download from https://github.com/frida/frida/releases (match arch)
adb push frida-server /data/local/tmp/
adb shell chmod 755 /data/local/tmp/frida-server
adb shell /data/local/tmp/frida-server &