Infostealer.Antigen

Risk Level 1: Very Low

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Discovered:: October 31, 2002
Updated:: February 13, 2007 12:54:11 PM
Also Known As:: Trojan.PSW.Antigen.c [AVP], Antigen.c [McAfee], PWSteal.Antigen
Type:: Trojan Horse
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

Infostealer.Antigen is password-stealing Trojan. It collects user passwords and sends them to the author(s) of the Trojan. Also, the Trojan can be programmed to drop data that has been appended to the Trojan.

NOTE : Definitions prior to May 10, 2006 may detect this threat as PWSteal.Antigen

Antivirus Protection Dates

Initial Rapid Release version October 31, 2002
Latest Rapid Release version February 22, 2012 revision 034
Initial Daily Certified version October 31, 2002
Latest Daily Certified version February 23, 2012 revision 001
Initial Weekly Certified release date November 4, 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: Easy

Damage

Damage Level: Medium

Distribution

Distribution Level: Low

Writeup By: Serghei Sevcenco

Technical Details

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Internet Security Threat Report, Volume 16