Alureon
Alureon has also been known to crash Warden (and thereby crash World of Warcraft & Starcraft II's game clients), and began appearing in December 2010 with users being infected with TDL1 (non-mbr version, which is fairly simple to remove). If Alureon causes Warden to crash the game client, it always crashes at specific memory addresses (depending on the version of Alureon on the system), making it simpler for Blizzard Technical Support personnel, and forum regulars to diagnose Alureon as the cause of the crash, and inform the user as to removal instructions.
Read more about this topic: Warden (software)