W32.Mydoom.Q@mm

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

Notes:

• 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.

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Protection

• Initial Rapid Release version August 16, 2004
• Latest Rapid Release version August 20, 2008 revision 017
• Initial Daily Certified version August 16, 2004
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date August 16, 2004

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

• Wild Level: Low
• Number of Infections: 50 - 999
• Number of Sites: More than 10
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: High