Sober: Biggest Worm Of The Year

MITRE assigned it a CME-ID: CME-681

This variant of Sober generates e-mails that purport to be from the CIA or FBI. These messages tell the recipient they have been looking at illegal Web sites and should answer some questions in the e-mail's attachment. If the attachment is opened, the computer is infected, and the virus sends copies of itself to any e-mail addresses found on the hard drive. >> Link