Frida gadget into an APK
Project description
frida-gadget is a tool that can be used to patch APKs in order to utilize the Frida gadget.
Installation
pip install frida-gadget
Prerequirement
You should install Apktool and add it to your PATH environment variable.
# Install Apktool on macOS
brew install apktool
# Add Apktool to your PATH environment variable
export PATH=$PATH:$HOME/.brew/bin
Other Platforms: Install Guide
Usage
$ frida-gadget --help
Usage: frida-gadget [OPTIONS] APK_PATH
Options:
--arch TEXT Support [arm, arm64, x86]
--help Show this message and exit.
Example
$ frida-gadget handtrackinggpu.apk --arch arm64
[INFO] Auto-detected frida version: 16.1.3
[INFO] APK: '[REDACTED]\frida-gadget\tests\demo-apk\handtrackinggpu.apk'
[INFO] Gadget Architecture(--arch): arm64(default)
[DEBUG] Decompiling the target APK using apktool
[DEBUG] Downloading the frida gadget library for arm64
[DEBUG] Checking internet permission and extractNativeLibs settings
[DEBUG] Adding 'android.permission.INTERNET' permission to AndroidManifest.xml
[DEBUG] Searching for the main activity in the smali files
[DEBUG] Found the main activity at '[REDACTED]\frida-gadget\tests\demo-apk\handtrackinggpu\smali\com\google\mediapipe\apps\handtrackinggpu\MainActivity.smali'
[DEBUG] Locating the onCreate method and injecting the loadLibrary code
[DEBUG] Recompiling the new APK using apktool
[INFO] Success!
[INFO] Output: [REDACTED]\frida-gadget\tests\demo-apk\handtrackinggpu\dist\handtrackinggpu.apk
$ unzip -l handtrackinggpu.apk | grep libfrida-gadget
21133848 09-15-2021 02:28 lib/arm64-v8a/libfrida-gadget-16.1.3-android-arm64.so
loadLibrary code will be injected
Easy to re-sign your app by apk-signer
$ apk-signer handtrackinggpu.apk
[Warning] Signing with default keystore.
[Warning] Please pass --key_path, --key_alias, --key_pass, --ks_pass parameter, if you want to use your keystore
handtrackinggpu-signed.apk
$ adb install handtrackinggpu-signed.apk
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