Get the Whitepaper called Assembly “Wrapping”: A Technique for Anti-Disassembly.
You can download it from the following link: https://packetstormsecurity.com/files/download/158310/windows-assembly.pdf
Source: https://packetstormsecurity.com/files/158310/Assembly-Wrapping-A-Technique-For-Anti-Disassembly.html