The Diskwasher virus is a reasonably simple diskette and Master Boot Record infector. It is only able to infect a hard disk when you try to boot the machine from an infected diskette. At this time virus infects the Master Boot Record, and after that it will go resident to high DOS memory during every boot-up from the hard disk.
Once Diskwasher gets resident to memory, it will infect practicly all non-writeprotected diskettes used in the machine.
Diskwasher contains the text "From DiskWasher with love", surrounded with the heart-symbols.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
More information on 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.