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


Risk Level 2: Low

August 16, 2004
February 13, 2007 12:26:30 PM
Also Known As:
W32/Mydoom.s@MM [McAfee], W32/MyDoom-S [Sophos], Win32.Mydoom.S [Computer Assoc, WORM_MYDOOM.S [Trend Micro], I-Worm.Mydoom.q [Kaspersky], W32/Mydoom.R.worm [Panda]
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Mydoom.Q@mm is a mass-mailing worm that downloads an executable file and uses its own SMTP engine to send itself to the email addresses that it finds on the infected computer.

The downloaded file is detected as Backdoor.Nemog.

The email has the following characteristics:

From: <spoofed>

Subject: Photos

Attachment: photos_arc.exe

  • Rapid Release definitions sequence number 34589 or later detect this threat.
  • Virus definitions version number 60816c (extended version 08/16/2004 rev. 3) or later detect this threat.

Translations of this Document:
Given the time needed to translate documents into other languages, the translated versions of this document may vary in content if the English document was updated with new information during the translation process. The English document always contains the most up-to-date information.

Available translations:
Simplified Chinese
Traditional Chinese

Antivirus Protection Dates

  • Initial Rapid Release version August 16, 2004
  • Latest Rapid Release version August 8, 2016 revision 023
  • Initial Daily Certified version August 16, 2004
  • Latest Daily Certified version August 9, 2016 revision 001
  • Initial Weekly Certified release date August 16, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Takayoshi Nakayama

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