A lot of folks have complained that MacKeeper is very hard to remove, and that if you try to clone or archive and install, the errant bits of MacKeeper will still be there.
I've got a record of having installed MacKeeper exactly 2 weeks after ryck...
presumably pretty likely the same version, and I remember ridding myself of it by simply deleting everything EasyFind found, and with no aftereffects. (I note that I never ran the app, merely installed it, which
may make a difference.)
Lucky, I guess.