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


Risk Level 2: Low

April 9, 2005
February 13, 2007 12:36:41 PM
Also Known As:
Win32.Mytob.{AF, AL, BH-BJ, BQ, BT, CA, CB, DH, DP, EH} [Computer Associates], Net-Worm.Win32.Mytob.{h, i, m, t, x, ai, gen} [Kaspersky Lab], W32/Mytob.{h, m, t, ag, aw, gen}@MM [McAfee], W32/Mytob-{E, F, I, N, AH, AK, AO, BW, BX, Fam} [Sophos], WORM_MYTOB.{AD, AJ, AQ, BF, BJ, BT, BW, BX, BZ, CB, CL, EY, EZ} [Trend Micro]
Systems Affected:

W32.Mytob.AH@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 by exploiting the DCOM RPC vulnerability (described in Microsoft Security Bulletin MS03-026) and the Microsoft Windows Local Security Authority Service Remote Buffer Overflow (described in Microsoft Security Bulletin MS04-011).

Antivirus Protection Dates

  • Initial Rapid Release version April 10, 2005
  • Latest Rapid Release version September 17, 2017 revision 018
  • Initial Daily Certified version April 10, 2005
  • Latest Daily Certified version September 18, 2017 revision 003
  • Initial Weekly Certified release date April 13, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Hatsuho Honda

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