W32.HLLW.Loxar

Risk Level 1: Very Low

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Discovered:: October 18, 2002
Updated:: February 13, 2007 11:40:54 AM
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.HLLW.Loxar is a worm that spreads using the KaZaA peer-to-peer network. It is written in Delphi and packed by the tElock runtime packer. It copies itself to the root folder of all drives, and to the KaZaA shared folder, using a name chosen randomly from a list that the worm carries. On December 13, the worm might start Notepad and display a message in the window.

The worm attempts to terminate the processes of a number of antivirus and firewall programs.

Antivirus Protection Dates

Initial Rapid Release version October 18, 2002
Latest Rapid Release version August 20, 2008 revision 017
Initial Daily Certified version October 18, 2002
Latest Daily Certified version August 20, 2008 revision 016
Initial Weekly Certified release date October 23, 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: Medium

Writeup By: Peter Ferrie

Technical Details

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Internet Security Threat Report, Volume 16