FakeBO fakes trojan server responses (Back Orifice, NetBus, etc.) and logs every attempt to a logfile, stdout/stderr or syslog. It is able to send fake pings and replies back to the client which is trying to access your system.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.