UPDATED: A virus posing as Microsoft's controversial anti-piracy software is spreading via AOL's popular Instant Messenger network, but it appears to be more of a jab at Microsoft than a real threat. The message itself does not spoof someone in the user's Buddy list, it comes in from an unknown sender. The virus then comes via a link in the instant message, should the user be foolish enough to click on a link sent by someone they don't know. Once infected, the virus registers itself as a new system driver service named "wgavn" and has the public display name of "Windows Genuine Advantage Validation Notification." If the user shuts it down, the user is informed that removing or stopping the service will cause system instability...