Mallory is a transparent TCP and UDP proxy.
It can be used to get at those hard to intercept network streams, assess those tricky mobile web applications, or maybe just pull a prank on your friend.
In more technical terms, Mallory is an extensible TCP/UDP man in the middle proxy that is designed to be run as a gateway.
Download: mallory-tip.tar.gz
More Info: Mallory – Intrepidus Group