Cowrie SSH/Telnet Honeypot
Python Shell

README.md

Welcome to the Cowrie GitHub repository

This is the official repository for the Cowrie SSH and Telnet Honeypot effort.

What is Cowrie

Cowrie is a medium interaction SSH and Telnet honeypot designed to log brute force attacks and the shell interaction performed by the attacker.

Cowrie is developed by Michel Oosterhof.

Features

Some interesting features:

  • Fake filesystem with the ability to add/remove files. A full fake filesystem resembling a Debian 5.0 installation is included
  • Possibility of adding fake file contents so the attacker can cat files such as /etc/passwd. Only minimal file contents are included
  • Session logs stored in an UML Compatible format for easy replay with original timings
  • Cowrie saves files downloaded with wget/curl or uploaded with SFTP and scp for later inspection

Additional functionality over standard kippo:

  • SFTP and SCP support for file upload
  • Support for SSH exec commands
  • Logging of direct-tcp connection attempts (ssh proxying)
  • Forward SMTP connections to SMTP Honeypot (e.g. mailoney)
  • Logging in JSON format for easy processing in log management solutions
  • Many, many additional commands

Requirements

Software required:

  • Python 2.7+, (Python 3 not yet supported due to Twisted dependencies)
  • Zope Interface 3.6.0+
  • Twisted 12.0+
  • python-crypto
  • python-cryptography
  • python-pyasn1
  • python-gmpy2 (recommended)
  • python-mysqldb (for MySQL output)
  • python-OpenSSL

Files of interest:

  • cowrie.cfg - Cowrie's configuration file. Default values can be found in cowrie.cfg.dist
  • data/fs.pickle - fake filesystem
  • data/userdb.txt - credentials allowed or disallowed to access the honeypot
  • dl/ - files transferred from the attacker to the honeypot are stored here
  • honeyfs/ - file contents for the fake filesystem - feel free to copy a real system here or use bin/fsctl
  • log/cowrie.json - transaction output in JSON format
  • log/cowrie.log - log/debug output
  • log/tty/*.log - session logs
  • txtcmds/ - file contents for the fake commands
  • bin/createfs - used to create the fake filesystem
  • bin/playlog - utility to replay session logs

Is it secure?

Maybe. See FAQ

I have some questions!

Please visit https://github.com/micheloosterhof/cowrie/issues

Contributors

Many people have contributed to Cowrie over the years. Special thanks to:

  • Upi Tamminen (desaster) for all his work developing Kippo on which Cowrie was based