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Discovered:
- May 11, 2004
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Updated:
- February 13, 2007 12:22:57 PM
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Also Known As:
- WORM_WALLON.A [Trend], Win32.Wallon [Computer Associa, W32/Wallon.worm.a [McAfee], I-Worm.Wallon [Kaspersky]
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Type:
- Worm
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Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Wallon.A@mm is a mass-mailing worm that sends email messages containing a hyperlink to download the worm body from certain URLs. It also harvests the email addresses on the infected machine.
The worm exploits the following vulnerabilities:
Microsoft Security Bulletin MS04-004 and
Microsoft Security Bulletin MS04-013
This threat is written in Delphi and packed with ASPack.
Antivirus Protection Dates
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Initial Rapid Release version May 12, 2004
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Latest Rapid Release version September 26, 2012 revision 041
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Initial Daily Certified version May 12, 2004
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Latest Daily Certified version September 27, 2012 revision 002
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Initial Weekly Certified release date May 12, 2004
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: 3 - 9
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Geographical Distribution: Low
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Threat Containment: Easy
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Removal: Moderate
Distribution
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Distribution Level: Medium
Writeup By: Yuhui Huang
