Discovered: June 4, 2003
Updated: February 13, 2007 12:02:01 PM
Also Known As: W32.HLLW.Xolox@mm
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
W32.HLLW.Lavits is a worm that attempts to spread across the KaZaA file-sharing network. This worm also uses Microsoft Outlook to send email to all the contacts in the Microsoft Outlook Address Book. When W32.HLLW.Lavits is run, it will display a fake message with the message title "Application Error."
The email does not have an attachment. The email messages have the following characteristics:
Subject: Where are you?
Message Body:
Hi!
Where are you?,I enjoy speaking with you :)
Simdi icinden buda kim diyorsundur :)
W32.HLLW.Lavits is written in Visual Basic (VB) and is packed with UPX.
NOTE: Definitions dated prior to June 6, 2003 may detect this threat as W32.HLLW.Xolox@mm.
Security Response could not successfully reproduce the mass-mailing routine in a controlled laboratory environment. The worm did not attach itself to any outgoing emails.
Protection
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Initial Rapid Release version June 5, 2003
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Latest Rapid Release version July 12, 2008 revision 018
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Initial Daily Certified version June 5, 2003
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Latest Daily Certified version July 12, 2008 revision 019
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Initial Weekly Certified release date June 5, 2003
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
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Wild Level: Low
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Number of Infections: 0 - 49
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Number of Sites: 0 - 2
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Geographical Distribution: Low
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Threat Containment: Easy
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Removal: Moderate
Damage
Distribution
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Distribution Level: Medium
Writeup By: Scott Gettis