Infostealer.Firum

Risk Level 1: Very Low

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Discovered:: October 16, 2003
Updated:: February 13, 2007 12:53:27 PM
Also Known As:: PWSteal.Firum
Type:: Trojan Horse
Systems Affected:: Windows 2000, Windows 3.x, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

Infostealer.Firum is a Trojan Horse that attempts to collect credit card information as it is entered into Web forms. This Trojan targets Visa, Mastercard, Eurocard, and American Express.

This threat is written in Visual Basic. It may be found as a file named "system32.exe" in the System directory. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

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

Antivirus Protection Dates

Initial Rapid Release version October 17, 2003
Latest Rapid Release version August 20, 2008 revision 017
Initial Daily Certified version October 17, 2003
Latest Daily Certified version August 20, 2008 revision 016
Initial Weekly Certified release date October 22, 2003

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: Heather Shannon

Technical Details

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Internet Security Threat Report, Volume 16