This is a simple virus, which will infect one .COM file when an infected program is run. The virus may emulate a parity error, displaying
PARITY CHECK 2
on the screen and halting the computer.
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.