This year at Defcon Immunity trotted out the first iteration of their NOP cert test. It got us thinking where does one go from the bar set by the NOP to get to the next level in terms of exploit development skill? In this vein I’ve thrown together a few windows executables called Advanced Windows Buffer Overflows (AWBOs) All exploits are performed in Windows 2000 SP4 unless otherwise specified. The shellcode provided is the amazing windows exec shellcode from metasploit set up to run calc.exe.”]
Source: https://blog.talosintelligence.com/2008/08/defcon-testing-and-exploiting.html