[comp.virus] Preventing the "Ping Pong" virus

ROGER@nuacc.acns.nwu.edu (Roger Safian, VAX Systems Group) (12/05/89)

Greetings,

    We seem to have an outbreak of the "Ping Pong" virus here at
Northwestern University.  I am wondering if there is some sort of
anti-ping-pong utility out there.  Is there such a thing that would
allow writes to a disk, but only if it is not to the boot blocks?
What is the best way to combat this beast.  I think we have version B
here, as it infects floppies as well as hard disks.

    On a related subject, what is the latest version of viruscan?

                                        Thanks in advance
                                           Roger Safian