Covert TCP Communication Tool

This repository contains the source code for a covert TCP communication channel implemented in C. The tool is designed for secure and undetectable data transmission, showcasing advanced low-level programming and networking expertise.

Features

• Implements covert communication over TCP.
• Secure data transmission through stealth techniques.
• Modular design for easy future enhancements (e.g., encryption).

Requirements

• GCC or any C compiler.
• A Linux-based system (tested on Ubuntu 22.04).
• Basic understanding of networking protocols (TCP/IP).

Installation

1. Clone the repository:

   git clone https://github.com/N111X/covertTCP.git
   cd covert-tcp

2. Compile the source code:

   gcc covert_tcp.c -o covert_tcp

Usage

1. Start the server on the target machine:

   ./covert_tcp -s <port>

2. Start the client on the attacker's machine:

   ./covert_tcp -c <target_ip> <port>

3. Follow prompts to send and receive data covertly.

Technical Details

• Covert Transmission: Utilizes raw sockets and custom packet crafting to blend in with legitimate network traffic.
• Modularity: The design allows for future extensions such as integrating encryption algorithms or modifying protocols.

Limitations

• The current version does not include encryption, leaving transmitted data in plaintext.
• Performance may vary depending on network conditions and system configurations.

Future Work

• Integrating encryption (e.g., AES or Vigenère cipher) for data protection.
• Implementing evasion techniques to bypass network detection systems.
• Expanding support for additional protocols (e.g., UDP).

Disclaimer

This tool is intended for educational and research purposes only. The author is not responsible for any misuse or damage caused by the use of this tool.