There is no virus by this name, and there are no known common viruses that would activate on this date. However, some people are concerned that computers might go berzerk on this date, as some (typically, older) computer systems have used the "9999" symbol as an end-of-file marker.
This risk is probably not too big, and has nothing to do with viruses.
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.