                    Ŀ
                            VIRUS REPORT         
                                Joker            
                    

Synonyms: Jocker

Date of Origin: December, 1989.

Place of Origin: Poland.

Host Machine: PC compatibles.

Host Files: Non resident. Infects EXE files.

OnScreen Symptoms: Infected programs display bogus error messages.

Nature of Damage: Damages program files.

Detected by: Scanv57+, Pro-Scan.

Removed by: CleanUp, Scan/D, or delete infected files.

     The Joker was isolated in Poland in December, 1989. This virus is a
generic .EXE file infector, and is a poor replicator (ie. it does not
quickly infect other files).<Note: Note that reports are mixed on this
virus. Some claim that it is resident, and infects COM and COMMAND.COM,
but not EXE files.>

     Infected programs will display bogus error messages and comments,
which cam be found in the infected files at the beginning of the viral
code. Some of the messages and comments include:

Incorrect DOS version

Invalid Volume ID Format failure

Please put a new disk into drive A:

End of input file

END OF WORKTIME. TURN SYSTEM OFF!

Divide Overflow

Water detect in Co-processor

I am hungry! Insert HAMBURGER into drive A:

NO SMOKING, PLEASE!

Thanks.

Don't beat me !!

Don't drink and drive.

Another cup of cofee ?

OH, YES!

Hard Disk head has been destroyed. Can you borrow me your one?

Missing light magenta ribbon in printer!

In case mistake, call GHOST BUSTERS

Insert tractor toilet paper into printer.

     This virus may also alter .DBF files, adding messages to them.


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