W32.Mydoom.R@mm

Risk Level 2: Low

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Discovered:: September 3, 2004
Updated:: 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]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

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 13, 2012 revision 016
Initial Daily Certified version September 4, 2004
Latest Daily Certified version March 13, 2012 revision 020
Initial Weekly Certified release date September 8, 2004

Click 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: Kevin Ha

Technical Details

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Internet Security Threat Report, Volume 16