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.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
More information on 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.