W32.Beagle.U@mm

W32.Beagle.U@mm is a mass-mailing worm that opens a backdoor on TCP port 4751 and uses its own SMTP engine to spread through email. The worm arrives as a blank email with a randomly named attachment. If the compromised system's clock year is 2005 or later, the worm will not run.

Protection

• Initial Rapid Release version pending
• Latest Rapid Release version pending
• Initial Daily Certified version pending
• Latest Daily Certified version pending
• Initial Weekly Certified release date pending

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.