W97M.Zaraza.B

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Discovered:: June 11, 2003
Updated:: February 13, 2007 12:02:30 PM
Also Known As:: Macro.Word97.Zaraza [KAV], W97M/Nid.E [F-Prot]
Type:: Macro
Systems Affected:: Macintosh, Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W97M.Zaraza.B is a macro virus that infects Microsoft Word documents and templates. It performs various actions, such as freezing windows and disabling the macro virus protection, as well as replacing words in the current document.

Antivirus Protection Dates

Initial Rapid Release version June 11, 2003
Latest Rapid Release version June 11, 2003
Initial Daily Certified version June 11, 2003
Latest Daily Certified version June 11, 2003
Initial Weekly Certified release date June 11, 2003

Click for a more detailed description of Rapid Release and Daily Certified virus definitions.

Writeup By: Hiroshi Shinotsuka

Technical Details

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Internet Security Threat Report, Volume 16