W97M/Stun is a Word 97 macro virus.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
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.