W32.Mugly.H@mm

W32.Mugly.H@mm is a worm that uses its own SMTP engine to spread by sending itself as an email attachment to addresses gathered from the compromised computer. The email will have a variable subject line and a variable attachment name. The attachment will have an .scr file extension.

The worm also drops and runs a variant of W32.Spybot.Worm.



February 13, 2005: Added alias information.

Protection

• Initial Rapid Release version January 31, 2005
• Latest Rapid Release version July 26, 2008 revision 017
• Initial Daily Certified version January 31, 2005
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date February 2, 2005

Click here 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: Easy

Damage

• Damage Level: Medium

Distribution

• Distribution Level: High