Discovered: November 6, 2003
Updated: February 13, 2007 12:13:26 PM
Also Known As: Bloodhound.W32.VBWORM, W32/Wukill.worm [McAfee]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
W32.Wullik.B@mm is a mass-mailing worm that attempts to send itself to all the contacts in the Outlook address book.
The email has the following characteristics:
Subject: MS?DOS???? (the ?'s represent Chinese characters.)
Attachment: MShelp.EXE
Message: <Chinese text>
The worm makes numerous copies of itself in random locations, and moves to a new location when Windows Explorer browses to the folder from which it runs. It can spread to floppy disks and shared network drives under some conditions.
W32.Wullik.B@mm is written in Visual Basic. Virus definitions dated prior to November 7, 2003 may detect it as Bloodhound.W32.VBWORM.
Protection
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Initial Rapid Release version November 7, 2003
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Latest Rapid Release version December 1, 2008 revision 039
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Initial Daily Certified version November 7, 2003
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Latest Daily Certified version January 20, 2009 revision 048
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Initial Weekly Certified release date November 12, 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
Writeup By: Heather Shannon