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O97M.Tristate

Risk Level 1: Very Low

Discovered:
February 18, 1999
Updated:
February 13, 2007 11:47:53 AM
Also Known As:
O97M.Tristate.A, O97M.Tristate.B, O97M.Tristate.C, Macro.Office.Triplicate.C, O97M.Triplicate.C
Type:
Worm

O97M.Tristate is a Microsoft Office 97 macro virus that has been found in-the-wild. The Symantec AntiVirus Research Center has recently received reports of O97M.Tristate infection through the Scan & Deliver system. The differences among the A, B, and C variants are minor changes to the comments in the macro code.

Antivirus Protection Dates

  • Initial Rapid Release version February 22, 1999
  • Latest Rapid Release version February 22, 1999
  • Initial Daily Certified version February 22, 1999
  • Latest Daily Certified version February 22, 1999
  • Initial Weekly Certified release date pending
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Douglas Knowles

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