W32.Beagle.AO@mm is a mass-mailing worm that uses its own SMTP engine to spread. The email attachment is a downloader, similar to the Mitglieder family of Trojans, that downloads the worm from an external source.
The worm also contains backdoor functionality, opening TCP port 80 and UDP port 80.
Virus definitions version 60809aj (extended version 8/9/2004 rev. 36) and greater are required to detect this threat. The respective LiveUpdate definitions which contain protection are version 60809ak (8/9/2004 rev. 37).
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