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 --
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
Description Created: Mikko Hypponen, F-Secure