W32.Kelvir.A

W32.Kelvir.A is a worm that spreads through Windows and MSN Messenger. The worm attempts to download and execute a variant of W32.Spybot.Worm.

The worm arrives in a Windows Messenger window with a link to the file cute.pif.

Note: Virus definitions version 70306r (extended version 3/6/2005 rev. 18) or greater are required to detect this threat.

Protection

• Initial Rapid Release version March 6, 2005
• Latest Rapid Release version August 20, 2008 revision 017
• Initial Daily Certified version March 6, 2005
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date March 6, 2005

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

Threat Assessment

Wild

• Wild Level: Medium
• Number of Infections: 50 - 999
• Number of Sites: 3 - 9
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Medium