MSIL.Letum.A@mm

MSIL.Letum.A@mm is a worm written in Microsoft .NET's Microsoft Intermediate Language (MSIL) that can affect both Windows PC and Windows Mobile powered devices that have the .NET framework installed. The worm arrives as an attachment to a spoofed email that pretends to come from Symantec and also spreads through Usenet servers.

Protection

• Initial Rapid Release version April 9, 2006
• Latest Rapid Release version June 21, 2008 revision 020
• Initial Daily Certified version April 9, 2006
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date April 12, 2006

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: Low

Distribution

• Distribution Level: High