W32.SillyFDC

W32.SillyFDC is a generic detection that detects variants of the W32.Silly family of worms that spread by copying itself to removable media and may download other malicious applications.

Note: Symantec strongly recommends that customers take specific steps to control the execution of applications referenced in autorun.inf files that may be located on removable and network drives. Threats such as this one frequently attempt to spread to other computers using these avenues. Configuration changes made to a computer can limit the possibility of new threats compromising it. For more information, see the following document:

How to prevent a virus from spreading using the "AutoRun" feature

Protection

• Initial Rapid Release version 8 January 2004
• Latest Rapid Release version 26 November 2009 revision 052
• Initial Daily Certified version 8 January 2004
• Latest Daily Certified version 26 November 2009 revision 048
• Initial Weekly Certified release date 12 July 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
• Degrades Performance: Copying itself to various folder locations may degrade performance.

Distribution

• Distribution Level: Low
• Target of Infection: Floppy drive.