1. Symantec/
  2. Security Response/
  3. W32.Mydoom.R@mm


Risk Level 2: Low

September 3, 2004
February 13, 2007 12:27:06 PM
Also Known As:
Win32.Mydoom.T [Computer Assoc, MyDoom.T [F-Secure], Email-Worm.Win32.Mydoom.r [Kas, W32/Mydoom.t@MM [McAfee], W32/Mydoom-T [Sophos], WORM_MYDOOM.T [Trend Micro]
Systems Affected:

W32.Mydoom.R@mm is a mass-mailing worm that uses its own SMTP engine to send itself to the email addresses that it finds on an infected computer. The email contains a spoofed From address. The subject and message body vary, and the attachment has a .bat, .cmd, .exe, .pif, .scr, or .zip extension.

This threat is packed using UPX.

Antivirus Protection Dates

  • Initial Rapid Release version September 4, 2004
  • Latest Rapid Release version March 23, 2017 revision 037
  • Initial Daily Certified version September 4, 2004
  • Latest Daily Certified version March 23, 2017 revision 041
  • Initial Weekly Certified release date September 8, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kevin Ha

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