Whitepaper discussing intrusion detection system evasion. It specifically focuses on polymorphic attacks using scmorphism. This document is written in Brazilian Portuguese.
You can download it from the following link: https://packetstormsecurity.com/files/download/46113/Monografia_Rodrigo.pdf
Source: https://packetstormsecurity.com/files/46113/Monografia_Rodrigo.pdf.html