VSTT is a multi-protocol tunneling tool. It accepts input by TCP stream sockets and FIFOs, and can send data via TCP, POP3, and ICMP tunneling.
You can download it from the following link: https://packetstormsecurity.com/files/download/71545/vstt-0.5.0.tgz
Source: https://packetstormsecurity.com/files/71545/vstt-0.5.0.tgz.html