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W32.Mytob.FX@mm

Risk Level 2: Low

Discovered:
June 23, 2005
Updated:
February 13, 2007 12:41:01 PM
Type:
Worm
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


W32.Mytob.FX@mm is a mass-mailing worm that uses its own SMTP engine to send an email to addresses that it gathers from the compromised computer. The worm spreads through the network by exploiting the Microsoft Windows Local Security Authority Service Remote Buffer Overflow (as described in Microsoft Security Bulletin MS04-011).

Antivirus Protection Dates

  • Initial Rapid Release version June 23, 2005
  • Latest Rapid Release version July 27, 2012 revision 038
  • Initial Daily Certified version June 23, 2005
  • Latest Daily Certified version July 28, 2012 revision 009
  • Initial Weekly Certified release date June 29, 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: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: High
Writeup By: Ka Chun Leung

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