W32.HLLW.Zaffi

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Discovered:: September 3, 2003
Updated:: February 13, 2007 12:06:45 PM
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.HLLW.Zaffi is a worm that attempts to spread itself through the KaZaA file-sharing network. This threat is written in the Microsoft Visual Basic programming language.

Antivirus Protection Dates

Initial Rapid Release version September 4, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version September 4, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date September 10, 2003

Click for a more detailed description of Rapid Release and Daily Certified virus definitions.

Writeup By: Yana Liu

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Internet Security Threat Report, Volume 16