SIMPLE C2

Lightweight Command & Control (C2) setup with a Flask server and Windows & linux Go agent for educational and penetration testing purposes.

Warning: Use only on systems you own or have explicit permission to test.

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Features

• Register multiple clients with unique IDs
• Send commands to specific or all clients
• Receive and display command output in real-time
• Automatic cleanup of disconnected clients
• Windows client runs commands via cmd.exe with timeout

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Requirements

• Server: Python 3.8+, Flask
• Client: Windows, Go 1.18+

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Setup

Server:

git clone https://github.com/Pwn3rx0/simple-c2.git
cd simple-c2
pip install Flask
python c2.py

Access the web interface: http://0.0.0.0:8080

Agent:

go build -o client.exe windows.go

Set SERVER_BASE in your Agent to your server URL.

Usage

• Start the server (i used deepnote as public server after enable Incoming connections port 8080).
• Run the client on target machine(s).
• Send commands via the web interface.
• View live outputs; use exit or quit to stop the client.

Contributing

• Improving UI, security, or client features

• Submit pull requests responsibly