W32.Lorac

Risk Level 1: Very Low

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Discovered:: August 21, 2003
Updated:: February 13, 2007 12:08:54 PM
Also Known As:: Backdoor.Lorac, Worm.Win32.Eyeveg.a [AVP], W32/Eyeveg.worm [McAfee]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows NT, Windows XP

W32.Lorac is a network aware worm that allows remote control of an infected system, via HTTP.

This worm has been distributed as an email attachment named Message.zip. An HTML file, which contains the worm, exists inside the zip file. The worm takes advantage of a vulnerability described in MS03-14, which allows for the execution of a MIME-encoded program inside an HTML file.

NOTE: Definitions dated prior to Octomer 9, 2003 may detect this as Backdoor.Lorac.

Antivirus Protection Dates

Initial Rapid Release version August 22, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version August 22, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date August 27, 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: Low

Distribution

Distribution Level: Low

Writeup By: Heather Shannon

Technical Details

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Internet Security Threat Report, Volume 16