W32.Beagle.O@mm

W32.Beagle.O@mm is a mass-mailing worm that opens a backdoor on TCP port 2556 and uses its own SMTP engine to spread through email. The email attachment is a randomly named .exe file inside a .zip archive, a .rar archive, or a .pif archive. The embedded .exe file in the .zip or .rar archive is password-protected with a random password.

W32.Beagle.O@mm also attempts to spread across file-sharing networks, such as KazaA and iMesh, by dropping itself into the directories that contain "shar" in their names.

This variant also contains a file infection routine that infects portable executable files with an .exe extension.

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.