This virus is probably extinct as it will overwrite .EXE files, and is therefore easily detected. Infected programs will display silly messages when executed, like
Water detect in Co-processor I'm hungry Insert HAMBUGER in drive A:
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.