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Discovered:
- April 20, 2001
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Updated:
- February 13, 2007 11:52:09 AM
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Type:
- Trojan Horse
VBS.Zeichen.A is a Trojan horse written in Visual Basic Script (VBS). It pretends to be a script that obtains URLs to the sites with porno-related contents. When executed, it appends malicious commands to the C:\Autoexec.bat and shuts down Windows. After the computer is restarted, the commands that were added to the Autoexec.bat file perform a hidden format of drives C and D without prompting and without the ability to unformat. The malicious payload works only under Windows 95, 98, and Me.
Antivirus Protection Dates
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Initial Rapid Release version April 20, 2001
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Latest Rapid Release version September 28, 2010 revision 054
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Initial Daily Certified version April 20, 2001
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Latest Daily Certified version September 28, 2010 revision 036
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Initial Weekly Certified release date pending
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: Easy
Writeup By: Serghei Sevcenco
