APKDeepLens - Android Security Insights In Full Spectrum

APKDeepLens is a Python based tool designed to scan Android applications (APK files) for security vulnerabilities. It specifically targets the OWASP Top 10 mobile vulnerabilities, providing an easy and efficient way for developers, penetration testers, and security researchers to assess the security posture of Android apps.

Features

APKDeepLens is a Python-based tool that performs various operations on APK files. Its main features include:

• APK Analysis -> Scans Android application package (APK) files for security vulnerabilities.
• OWASP Coverage -> Covers OWASP Top 10 vulnerabilities to ensure a comprehensive security assessment.
• Advanced Detection -> Utilizes custom python code for APK file analysis and vulnerability detection.
• Sensitive Information Extraction -> Identifies potential security risks by extracting sensitive information from APK files, such as insecure authentication/authorization keys and insecure request protocols.
• In-depth Analysis -> Detects insecure data storage practices, including data related to the SD card, and highlights the use of insecure request protocols in the code.
• Intent Filter Exploits -> Pinpoint vulnerabilities by analyzing intent filters extracted from AndroidManifest.xml.
• Local File Vulnerability Detection -> Safeguard your app by identifying potential mishandlings related to local file operations
• Report Generation -> Generates detailed and easy-to-understand reports for each scanned APK, providing actionable insights for developers.
• CI/CD Integration -> Designed for easy integration into CI/CD pipelines, enabling automated security testing in development workflows.
• User-Friendly Interface -> Color-coded terminal outputs make it easy to distinguish between different types of findings.

Installation

To use APKDeepLens, you'll need to have Python 3.8 or higher installed on your system. You can then install APKDeepLens using the following command:

For Linux

git clone https://github.com/d78ui98/APKDeepLens/tree/main
cd /APKDeepLens
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
python APKDeepLens.py --help

For Windows

git clone https://github.com/d78ui98/APKDeepLens/tree/main
cd \APKDeepLens
python3 -m venv venv
.\venv\Scripts\activate
pip install -r .\requirements.txt
python APKDeepLens.py --help

Usage

To simply scan an APK, use the below command. Mention the apk file with -apk argument. Once the scan is complete, a detailed report will be displayed in the console.

python3 APKDeepLens.py -apk file.apk

If you've already extracted the source code and want to provide its path for a faster scan you can use the below command. Mention the source code of the android application with -source parameter.

python3 APKDeepLens.py -apk file.apk -source <source-code-path>

To generate detailed PDF and HTML reports after the scan you can pass -report argument as mentioned below.

python3 APKDeepLens.py -apk file.apk -report

Contributing

We welcome contributions to the APKDeepLens project. If you have a feature request, bug report, or proposal, please open a new issue here.

For those interested in contributing code, please follow the standard GitHub process. We'll review your contributions as quickly as possible :)

Featured at

• Blackhat MEA 2023 - https://blackhatmea.com/session/apkaleidoscope-android-security-insights-full-spectrum-0
• Blackhat ASIA 2024 - https://www.blackhat.com/asia-24/arsenal/schedule/index.html#apkdeeplens---android-security-insights-in-full-spectrum-37182

Pyxamstore - Python Utility For Parsing Xamarin AssemblyStore Blob Files

This is an alpha release of an assemblies.blob AssemblyStore parser written in Python. The tool is capable of unpack and repackaging assemblies.blob and assemblies.manifest Xamarin files from an APK.

Installing

Run the installer script:

python setup.py install

You can then use the tool by calling pyxamstore

Usage

Unpacking

I recommend using the tool in conjunction with apktool. The following commands can be used to unpack an APK and unpack the Xamarin DLLs:

apktool d yourapp.apk
pyxamstore unpack -d yourapp/unknown/assemblies/

Assemblies that are detected as compressed with LZ4 will be automatically decompressed in the extraction process.

Repacking

If you want to make changes to the DLLs within the AssemblyStore, you can use pyxamstore along with the assemblies.json generated during the unpack to create a new assemblies.blob file(s). The following command from the directory where your assemblies.json file exists:

pyxamstore pack

From here you'll need to copy the new manifest and blobs as well as repackage/sign the APK.

Additional Details

Additional file format details can be found on my personal website.

Known Limitations

• Python3 support (working on it!)
• DLLs that have debug/config data associated with them