W97M.Thus.A

Risk Level 1: Very Low

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Updated:: February 13, 2007 11:59:27 AM
Also Known As:: W97.Thursday, W97M.Automat.K
Type:: Macro

W97M.Thus.A is a simple macro virus that infects Word 97 documents. It has a payload that triggers on December 13th which will try to delete all files and subdirectories from the root of the C: drive. This virus will also disable the macro virus protection in Word 97.

Antivirus Protection Dates

Initial Rapid Release version September 2, 1999
Latest Rapid Release version January 12, 2011 revision 032
Initial Daily Certified version September 2, 1999
Latest Daily Certified version January 12, 2011 revision 039
Initial Weekly Certified release date pending

Click 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: 0 - 2
Geographical Distribution: Low
Threat Containment: Easy
Removal: Easy

Damage

Damage Level: Low

Distribution

Distribution Level: Low

Writeup By: Motoaki Yamamura

Technical Details

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Internet Security Threat Report, Volume 16