Hydrogen is a professional grade "Remote Access Trojan" specifically designed for penetration testing, but useful for many other things as well. Its design allows for bouncing off of hosts quickly and easily ("puddle jumping") and it has been specifically designed for speed, portability, security, and extensibility. It is now available with a one-year support contract for $5000 USD. This includes an on-site training session from Immunity, and ongoing discussions on how to adapt Hydrogen technology to your needs. Customization contracts are also available.
Hydrogen's client runs on Linux. Hydrogen's server will run on Windows, Tru64, AIX, Linux, Solaris, and almost any other platform.
