Backdoor.Helios

Risk Level 1: Very Low

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Discovered:: September 12, 2002
Updated:: February 13, 2007 11:47:57 AM
Also Known As:: Backdoor.Helios.12.d [AVP]
Type:: Trojan Horse
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

Backdoor.Helios is a backdoor Trojan horse that gives an attacker unauthorized access to an infected computer. By default it opens port 3737 on the compromised computer. The Trojan attempts to disable some antivirus and firewall programs by terminating the active processes. It is written in Microsoft Visual Basic version 6.

Antivirus Protection Dates

Initial Rapid Release version September 12, 2002
Latest Rapid Release version March 14, 2012 revision 005
Initial Daily Certified version September 12, 2002
Latest Daily Certified version March 14, 2012 revision 019
Initial Weekly Certified release date September 18, 2002

Click 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: Low

Writeup By: Kaoru Hayashi

Technical Details

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Internet Security Threat Report, Volume 16