W32.Mugly.A@mm

Risk Level 2: Low

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Discovered:: December 2, 2004
Updated:: February 13, 2007 12:30:39 PM
Also Known As:: Win32.Mugly.A [Computer Associ, Email-Worm.Win32.Wurmark.a [Ka, W32/Mugly.a@MM [McAfee], WORM_MUGLY.A [Trend Micro]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Mugly.A@mm is a worm that uses its own SMTP engine to spread by sending itself as an email attachment to the email addresses gathered from the infected computer. It also drops and runs a W32.Spybot.Worm variant, and may attempt to open a backdoor on the infected computer.

Antivirus Protection Dates

Initial Rapid Release version December 2, 2004
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version December 2, 2004
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date December 4, 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: Kaoru Hayashi

Technical Details

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Internet Security Threat Report, Volume 16