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- Discovered:
- May 11, 2004
- Updated:
- February 13, 2007 12:22:57 PM
- Also Known As:
- WORM_WALLON.A [Trend], Win32.Wallon [Computer Associa, W32/Wallon.worm.a [McAfee], I-Worm.Wallon [Kaspersky]
- Type:
- Worm
- 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
- Initial Rapid Release version May 12, 2004
- Latest Rapid Release version September 28, 2010 revision 054
- Initial Daily Certified version May 12, 2004
- Latest Daily Certified version September 28, 2010 revision 036
- Initial Weekly Certified release date May 12, 2004
Click here 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: 3 - 9
- Geographical Distribution: Low
- Threat Containment: Easy
- Removal: Moderate
Damage
- Damage Level: Low
Distribution
- Distribution Level: Medium
Writeup By: Yuhui Huang
