CTF Solver

CTF Solver is an automated tool designed to assist in solving Capture The Flag (CTF) forensics challenges. It leverages a variety of tools and techniques to analyze files and directories, including archives, images, text files, and binary data. The tool applies multiple methods to extract hidden flags and provides a detailed trace of the analysis process.

Features

• Recursive Analysis: Handles nested archives and analyzes files at multiple levels.
• Tool Integration: Utilizes popular forensic tools like Binwalk, Strings, Exiftool, Steghide, Zsteg, Foremost, Xxd, and Radare2.
• Image Analysis: Supports OCR and steganographic analysis for image files.
• Verbose Logging: Provides detailed logging of commands run and analysis results.
• Flexible: Works with various file types and structures.

Installation

Prerequisites

• Python 3.x
• Required Python packages: pillow, pytesseract
• External tools: binwalk, strings, exiftool, steghide, zsteg, foremost, xxd, radare2

Installation Steps

1. Clone the Repository

   git clone https://github.com/yourusername/ctf_solver.git
   cd ctf_solver

2. Set Up the Python Environment

   Create and activate a virtual environment (optional but recommended):

   python -m venv ctfEnv
   source ctfEnv/bin/activate  # On Windows, use `ctfEnv\Scripts\activate`

3. Install Required Python Packages

   pip install -r requirements.txt

4. Install External Tools

   Ensure the following tools are installed on your system. You can use package managers like apt for Ubuntu or brew for macOS to install them.

   sudo apt-get install binwalk exiftool steghide foremost xxd radare2
   gem install zsteg  # Ruby gem for zsteg

   For OCR functionality, install Tesseract:

   sudo apt-get install tesseract-ocr

Usage

Basic Command

To analyze a file or directory, use:

python main.py <target_file_or_directory>

Examples

1. Analyzing a Single File

   python main.py example_file.tar

2. Analyzing a Directory

   python main.py example_directory/

Output

The tool will output the following:

• Command Execution Logs: Commands run during the analysis.
• Flags Found: List of detected flags.
• Trace: Detailed trace of the steps taken to find the flags.

Contributing

Contributions are welcome! Please submit a pull request or open an issue for suggestions and improvements.

1. Fork the Repository
2. Create a Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit Your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgements

• Pillow for image processing
• Pytesseract for OCR
• Binwalk for firmware analysis
• Exiftool for metadata extraction
• Steghide for steganographic analysis
• Zsteg for PNG steganographic analysis
• Foremost for file carving
• Xxd for hexadecimal dumps
• Radare2 for binary analysis

Contact

For any questions or support, please contact [email protected].