This "virus" does not work. When the original program is run it will simply append the "virus" code to other program, but that code will never be executed. It is included here simply because this "bug" might be fixed later.
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.