This is a non-resident virus which infects COM-files. It activates on every day in March, overwrites part of the hard drive and displays:
Computers must be shutdown to dedicate my sister!
A later, 698 byte variant displays:
Computers must be shutdown to dedicate my sister! -- HKs VTech --
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.