Trojan.Pistmi

Trojan.Pistmi is a Trojan horse that attempts to open a back door on a predetermined Web server by exploiting the Microsoft IIS 5.0 .printer ISAPI Extension Buffer Overflow Vulnerability (as described in the Microsoft Security Bulletin MS01-023).

Protection

• Initial Rapid Release version August 11, 2005
• Latest Rapid Release version August 2, 2008 revision 020
• Initial Daily Certified version August 11, 2005
• Latest Daily Certified version December 8, 2008 revision 050
• Initial Weekly Certified release date August 14, 2005

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