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  3. W32.Beagle.CK@mm


Risk Level 2: Low

October 6, 2005
February 13, 2007 12:45:13 PM
Also Known As:
W32/Bagle.df@MM [McAfee], W32/Bagle-AN [Sophos]
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Beagle.CK@mm is a mass-mailing worm that uses its own SMTP engine to email copies of itself to addresses gathered from the compromised computer.
The worm also opens a back door on TCP Port 9035 on the compromised computer.

Antivirus Protection Dates

  • Initial Rapid Release version October 7, 2005
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version October 7, 2005
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date October 7, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 3 - 9
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate


  • Damage Level: Medium


  • Distribution Level: High
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.
Writeup By: Hyun Choi

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