Zonked is normal direct action COM infector virus. It modifes 5 bytes at the beginning of the program to point to the end of the file where the rest of the virus is placed.
Allow F-Secure Anti-Virus to disinfect the relevant files.
For more general information on disinfection, please see Removal Instructions.
When an infected program gets executed the virus checks the date. On 1st of January and 31st of December the virus displays this message:
La multi ani, piratilor !
Otherwise the virus does nothing but spreads itself.