This is an Italian boot sector virus, which contains the text "RPS".
There are three closely related variants.
Disinfection & Removal
Contains the text "RPS", overwrites the hard drive after 75 boots.
Contains the text "RPS2", overwrites the hard drive after 50 boots.
Contains the text "RPS3", overwrites the hard drive after 50 boots.
Otherwise the virus is a typical boot sector virus.
RPS was reported to be in the wild in Italy and Germany in the end of 1995.
Description Created: Mikko Hypponen, F-Secure