...The Lehigh Virus

This PC system infector is a short-life virus, activating after it has achieved
only four infections.  Like other short-life viruses, it has a high probability
of activating and destroying data before there is any indication that the virus
is present.  On the positive side, it is very slow to spread since it does not 
allow time to infect vast numbers of diskettes.

The Lehigh virus is named after Lehigh University in Bethlehem, Pennsylvania, 
where it infected a number of systems in 1987 belong to both staff and students
and caused data destruction in laboratory micros.  It infected the system 
command interpreter--COMMAND.COM--and used operating system commands as a 
channel for replicating itself.  It infected all system diskettes (diskettes 
containging operating system files) inserted into the system and after the 
fourth infection it destroyed all data on the hard disk.


---------------------------------------------------------------------------
"Computer Viruses, Worms, Data Diddlers, Killer Programs, and Other Threats
To Your System: What They Are, How They Work, And How To Defend your PC, Mac,
Or Mainframe."  McAfee, John and Colin Haynes. (C) 1989 by John McAfee and
Colin Haynes.  St. Martin's Press.  p. 98.
