Threat Description

Stun

Details

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

Summary


W97M/Stun is a Word 97 macro virus.



Removal


Automatic action

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

More

Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.

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



Technical Details



Variant:Stun.A

W97M/Stun.A is a virus, that infects the global template when an infected document is opened. Then the virus infects all documents that are opened or saved. During infection, the virus creates a temporary file "c:\ffastun.drv". Then the virus removes "Tools/Macros", "Tools/Templates and Add-Ins..." and "Format/Style" menus, as well as their Spanish equivalents.The virus contains two payloads. The first is activated at November, 22nd. At this time the virus will display a message box with the following text:

  Illegal function in modul 0xCB15C001  

Then the virus shuts Windows down.The second payload activates at July 22nd, when the virus will add the following text to the footer of each document that is printed:

  Microsuck Windows - How Do You Want To Crash Today?      -= Don't Get Mad With Me, Get UNIX =-  

This footer is removed after the document is printed.





Technical Details:Sami Rautiainen, F-Secure


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