Didier Stevens shows how to easily reverse engineer malware if it’s written in AutoIt, a popular scripting tool. You simply unpack the malware and then run it through the AutoIt decompilation utility (exe2aut).
He ran a piece of malware through this process, and the result was some mildly interesting tidbits as the malware author’s code was exposed.
A higher quality video and more explanation is on Didier’s site.
Alex Eckelberry