Predator is a fast infector or COM files, infecting program files as they are executed or openened. Predator is a corruptive virus, since it sometimes modifies one bit in read buffers during disk access.
Predator contains the following text:
Predator virus (c) Mar. 93 In memory of all those who were killed... Wookies ain't the only ones that drop! Priest
There are several known variants, some of which are encrypted.