W32.HLLW.Stiq

Risk Level 1: Very Low

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Discovered:: January 6, 2003
Updated:: February 13, 2007 11:42:02 AM
Also Known As:: Bloodhound.W32.VBWORM
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.HLLW.Stiq is a worm that uses Microsoft Outlook and mIRC to attempt to spread itself. However, due to a bug in the code, the attempt to spread will fail.

The worm deletes the data files for some antivirus programs. It is written in Microsoft Visual Basic version 6.

NOTE: Definitions dated prior to January 6, 2003 may detect this as Bloodhound.W32.VBWORM.

Antivirus Protection Dates

Initial Rapid Release version January 6, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version January 6, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date January 8, 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: Moderate

Damage

Damage Level: Medium

Distribution

Distribution Level: Medium

Writeup By: Kaoru Hayashi

Technical Details

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Internet Security Threat Report, Volume 16