Cybersoft Inc, a Pennsylvania start-up, says it has the first virus scanner to work on Unix systems and claims Vfind also ferrets out the beasts on heterogeneous networks containing MS-DOS boxes, Macs and Amigas; Trojan Horses and Worms are also apparently its meat: it’s supported on Sun-3s, Sparcsystems, NeXTstations and 88000 machines and on stand-alone and single network nodes it costs $300; small servers with up to 20 clients $3,000; and large servers $7,000.