Threat Description



Category: Malware
Type: Virus
Platform: W97M
Aliases: Arbeit


W97M/Arbeit is a Word 97 macro virus with a destructive payload.


Automatic action

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

More scanning & removal options

More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.

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


When an infected document is opened, W97M/Arbeit.A disables the built-in macro virus protection, the status bar and the following menus: "Tools/Macros/Macro" and "Tools/Macros/Visual Basic Editor". It also modifies the user name and initials to:

  User name:  NoWork Inc.     Initials:   NWI  

Then the virus creates a temporary file "C:\mlpog.sys" that it uses to infect the global template and all documents closed after that.

The virus activates its payload every day after October 15th, when it shows a message box with the following text:

  The technology will be kill humaneness  

After the message box has been shown, it deletes all files from the root directory of the "C:" drive.

Description Details: Analysis: Sami Rautiainen, F-Secure


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