W97M/Tonor is a simple Word 97 macro virus.
When an infected document is opened, the virus infects the global template. After that the virus infectes all documents that are opened or saved.
It adds adds an AutoText entry into infected documents: " - AAAAAAAA" with the value "IAMHERE".
The virus code contains the following text:
' VIRUS 8x64oct ' FROM ESTONIA ' NOT HARMFUL ' ONLY SPREADS
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.
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