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W32.Mytob.KU@mm

Risk Level 2: Low

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 September 28, 2010 revision 054
  • Initial Daily Certified version October 16, 2005
  • Latest Daily Certified version September 28, 2010 revision 036
  • 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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