This virus contains the text:
Thank you for running the Happy virus. Warning !!! COM-files in current directory and C:\DOS might be infected !!!!
This virus has nothing to do with the Happy99 e-mail worm, also known as Win32/Ska. See: Happy99
Disinfection & Removal
Allow F-Secure Anti-Virus to disinfect the relevant files.
For more general information on disinfection, please see Removal Instructions.