This virus adds itself in front of the original program. It has an interesting effect if a Hayes compatible modem is installed in the computer, including dialing the number 081-141. This is the number of the "speaking clock" on the island of Crete. This will only work in Greece, though.
One 1074 byte variant is known.
Allow F-Secure Anti-Virus to disinfect the relevant files.
For more general information on disinfection, please see Removal Instructions.