W32.Mytob.KU@mm

Risk Level 2: Low

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Discovered: October 16, 2005
Updated: February 13, 2007 12:45:32 PM
Also Known As: WORM_MYTOB.LP [Trend Micro]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


W32.Mytob.KU@mm is a mass-mailing worm that opens a back door and lowers security settings on the compromised computer.

Antivirus Protection Dates

  • Initial Rapid Release version October 16, 2005
  • Latest Rapid Release version August 2, 2008 revision 020
  • Initial Daily Certified version October 16, 2005
  • Latest Daily Certified version January 20, 2009 revision 048
  • Initial Weekly Certified release date October 17, 2005

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 50 - 999
  • Number of Sites: More than 10
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: High

Writeup By: Kaoru Hayashi
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