W32.Lorac

W32.Lorac is a network aware worm that allows remote control of an infected system, via HTTP.

This worm has been distributed as an email attachment named Message.zip. An HTML file, which contains the worm, exists inside the zip file. The worm takes advantage of a vulnerability described in MS03-14, which allows for the execution of a MIME-encoded program inside an HTML file.

NOTE: Definitions dated prior to Octomer 9, 2003 may detect this as Backdoor.Lorac.

Protection

• Initial Rapid Release version August 22, 2003
• Latest Rapid Release version August 20, 2008 revision 017
• Initial Daily Certified version August 22, 2003
• Latest Daily Certified version August 20, 2008 revision 016
• Initial Weekly Certified release date August 27, 2003

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: Low