There is no virus by this name. However, we sometimes get queries about "Codehammer virus", when people see strange characters on screen and see texts like "(C) Codehammer" or "Codehammer rocks your system".
Codehammer is a commercial company specializing in screen savers and screen mates. You're most likely not infected by a virus in this case but just seeing an entertaining screen mate at work.
For more info, contact Codehammer at https://www.codehammer.com
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.
You may also refer to the Knowledge Base on the F-Secure Community site for further assistance.