1. Symantec/
  2. Security Response/
  3. W32.Beagle.O@mm


Risk Level 2: Low

March 18, 2004
March 18, 2004 5:08:37 PM
Systems Affected:
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.

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2016 Internet Security Threat Report, Volume 21
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