This virus is highly destructive, and may trash the FAT. Before doing so, however, it will offer the user to play a game - if he wins, the virus will leave the FAT unchanged.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the 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.