Threat description


Platform: W32
Aliases: Ozwer, ZMK.P


This is a Word 97 macro virus that infects when Word is started and when an infected document is opened or closed.


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.


More information on scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

Technical Details


The virus hooks several menus like: Format/Font, File/Print, File/Save As, File/Save, File/Close, File/New, Edit/Copy, Edit/Paste, Tools/Macros/Macro, File/Exit and Tools/Options. It also replace Tools/Macro dialogue box with it's own and Tools/Macro/Visual Basic Editor with the following Message box:

Depending on the random number, the virus moves words in the active document to the left or to the right, when the has been running for 20 minutes.

In Spanish version of Word 97 it will show it's messages in Spanish.

Technical Details:Katrin Tocheva and Sami Rautiainen, F-Secure


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