W32.Cycle

W32.Cycle is a worm that attempts to exploit the Microsoft Windows LSASS Buffer Overrun Vulnerability (described in Microsoft Security Bulletin MS04-011).

Protection

• Initial Rapid Release version May 10, 2004
• Latest Rapid Release version August 20, 2008 revision 017
• Initial Daily Certified version May 10, 2004
• Latest Daily Certified version August 20, 2008 revision 016
• Initial Weekly Certified release date May 12, 2004

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: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Medium