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PythonBotnet (C&C)

Simple Command and Control (C&C) botnet written asynchronously using asyncio in Python3.7. Communication is implemented using unencrypted websockets.

Features

  • Run bash command on multiple bot clients simultaneously
  • Enable reverse-shell on a specific bot client
  • Bot client authentication using password

See planned features

Example

Why?

Developed as a part of an assignment in CTU class Introduction to Security

Getting started

Run via docker-compose

Required: docker, docker-compose

The easiest way to test the botnet is to run prepared docker-compose.yml file. To build images and run docker-compose in detached mode:

$ docker-compose build
$ docker-compose up -d

To connect to the control panel, websocket cli client is needed (e.g. wscat)

$ wscat -c localhost:6767
Connected (press CTRL+C to quit)
< Enter: 
* "0" - to print bot clients collection
* Indexes of clients separated by space to send bash command to
* Index of one client to jump into bash (send "exit" for termination)

>

Run locally

Project can be also installed locally:

$ pip install .

Then run control panel server, bot client and websocket cli client in separated terminals:

$ python3.7 src/server.py
$ python3.7 src/client.py
$ wscat -c localhost:6767
...

Configuration

Control panel server

$ python3.7 server.py --help
Usage: server.py [OPTIONS]

Options:
  -cp, --cac_port INTEGER     Port where command and control center listens
  -bp, --bot_port INTEGER     Port where bots should connect in order to join
                              the botnet
  -s, --secret_password TEXT  Password needed for bots to connect
  -i, --ip_address TEXT       Ip address for server to listen on
  --help                      Show this message and exit.

Botnet client

$ python3.7 client.py --help
Usage: client.py [OPTIONS]

Options:
  -s, --server_address TEXT       Ip address or host of a running c&c
  -p, --port INTEGER              Port where the running c&c listens
  -i, --connection_interval INTEGER
                                  Interval in seconds in which client tries to
                                  connect to c&c server
  --help                          Show this message and exit.

Note: password for client authentication needs to be written directly to src/client.py. (Default values match)

To be done:

New features:

  • Encrypt the websocket communication using TLS
  • Add option to provide configuration in file
    • Log into file
    • Tls keys for encrypted communication
    • Ports
    • ...
  • Make client less dependant on 3rd party libraries
  • Add option for domain generating algorithms
  • Prettify the CLI view

Issues to be solved:

  • reverse shell freezes when interactive command as htop or ping is executed

License

This project is licensed under the terms of the MIT license.