Wikipedia
Stacheldraht
Stacheldraht ( German for barbed wire) is a piece of software written by Random for Linux and Solaris systems which acts as a distributed denial of service (DDoS) agent. This tool detects and automatically enables source address forgery.
Stacheldraht uses a number of different DoS attacks, including UDP flood, ICMP flood, TCP SYN flood and Smurf attack.
It combines features of Trinoo with TFN, and adds encryption.