This is a typical boot sector virus. It activates when a machine is booted on the 19th of August, displaying a Russian flag on the screen. In 1991, this was the date of the communist military coup attempt in Russia.
The virus also contains the string "Ekaterinburg" at offset 17Ah in an infected boot sector. The text is encrypted.
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.