Get the Whitepaper called Polymorph: A Real-Time Network Packet Manipulation Framework.
You can download it from the following link: https://packetstormsecurity.com/files/download/147190/polymorph-a-real-time-network-packet-manipulation-framework.pdf
Source: https://packetstormsecurity.com/files/147190/Polymorph-A-Real-Time-Network-Packet-Manipulation-Framework.html