EDIT 4/27/09: THIS NO LONGER WORKS WITH NEW VARIANTS OF CONFICKER HOWEVER THE CONCEPT IS STILL SOUND IF YOU ARE LOOKING FOR SYSTEMS THAT ARE QUERYING FOR SPECIFIC DNS NAMES.   I’ve already created one post on finding malware systems using eventcomb...

A fairly frequent question we get is how do FCS definitions work. How do I find just the delta’s for the month etc. You can always manually download the latest definitions from http://www.microsoft.com/security/portal with the links on the right. This...