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Discovered:
- July 17, 2001
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Updated:
- February 13, 2007 11:47:52 AM
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Also Known As:
- VBS.Yang@mm, I-Worm.Yang
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Type:
- Worm
This worm contains a bug that prohibits it from replicating.
The bug is trivial to fix and for that reason the writeup is aimed at providing information to you about the functionality of this worm when the bug is fixed (Note: NAV will also detect the fixed worm sample).
For this worm to replicate, the operating system must be Windows XP or the Microsoft Outlook 2000 View Control must be installed.
It sends itself out to all recipients in your Microsoft Outlook address book, and overwrite all files that have ht in their extension (such as .htm and .html).
NOTE: Definitions dated prior to July 19, 2001 will detect this worm as VBS.Yang@mm
Antivirus Protection Dates
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Initial Rapid Release version July 17, 2001
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Latest Rapid Release version September 28, 2010 revision 054
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Initial Daily Certified version July 17, 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: Atli Gudmundsson
