W32.Blastclan

Risk Level 1: Very Low

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Discovered: September 10, 2007
Updated: September 10, 2007 5:19:37 PM
Also Known As: W32/SillyFDC-BU [Sophos]
Type: Worm
Infection Length: 290,419 bytes
Systems Affected: Windows 98, Windows 95, Windows XP, Windows Me, Windows Vista, Windows NT, Windows Server 2003, Windows 2000

W32.Blastclan is a worm that spreads by copying itself to all drives on the compromised computer.

Protection

  • Initial Rapid Release version September 10, 2007 revision 009
  • Latest Rapid Release version December 24, 2009 revision 022
  • Initial Daily Certified version September 10, 2007 revision 017
  • Latest Daily Certified version December 24, 2009 revision 049
  • Initial Weekly Certified release date September 12, 2007

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
  • Compromises Security Settings: Ends security-related applications.

Distribution

  • Distribution Level: Low

Writeup By: Liam O Murchu
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