This virus is designed to activate on July 13th - which happened to fall on a Friday in 1990. It is an encrypted .EXE file infector, which has not been fully dissected yet.
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.