It infects all COM-programs which are longer than 390 bytes.
Due a programming error, Cinderella may infect files with extension
CO, DOC, OC or no extension at all.
Cinderella counts the user's keypresses and activates after a certain
amount. Then the virus creates a hidden file named cInDeReL.la and
resets the computer.
Virus stores itself to low system memory, on the interrupt table.
Therefore it does not reduce available DOS memory while resident.
