2/21: Derdero-B Worm Uses File Sharing
February 21, 2005

W32.Derdero.B@mm is a mass-mailing worm that uses its own SMTP engine to send an email to addresses that it gathers from the Windows Address Book. It also attempts to spread through file-sharing programs and infects all .exe files on the C drive.

Technical details can be found at Symantec page.