Obfuscators and co.

[PELock]

We got plenty of them :)

https://www.pelock.com/products/obfuscator - Source Code Obfuscator for Assembler
https://www.pelock.com/products/autoit-obfuscator - AutoIt Obfuscator — AutoIt Script Source Code Obfuscation

You might also look around at:

https://www.pelock.com/articles

A few of my reverse engineering, malware analysis and low level programming articles.