W32.Beagle.B@mm is a mass-mailing worm that opens a backdoor on TCP port 8866. The worm uses its own SMTP engine for email propagation. It can also send to the attacker the port on which the backdoor listens, as well as a randomized ID number.
The email has the following characteristics:
Subject: ID <random characters>... thanks
- Beta definitions 27975, dated February 17, 2004, 5:20AM PT, or later will detect this threat.
- Initial builds may detect this threat as W32.Alua@mm or W32.Aula@mm.
The following domains can be blocked to prevent the worm from submitting any information.
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