Backdoor.Expjan

Backdoor.Expjan is a backdoor server (Trojan) that allows unauthorized access to the infected computer. It uses the same icon as Internet Explorer. By default it opens port 2090 on the infected computer.

Protection

• Initial Rapid Release version August 26, 2002
• Latest Rapid Release version August 20, 2008 revision 017
• Initial Daily Certified version August 26, 2002
• Latest Daily Certified version August 20, 2008 revision 016
• Initial Weekly Certified release date August 28, 2002

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