1. Symantec/
  2. Security Response/
  3. W32.Mytob.FX@mm


Risk Level 2: Low

June 23, 2005
February 13, 2007 12:41:01 PM
Systems Affected:

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 January 10, 2017 revision 023
  • Initial Daily Certified version June 23, 2005
  • Latest Daily Certified version January 11, 2017 revision 002
  • Initial Weekly Certified release date June 29, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Ka Chun Leung

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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