After initial install:
-r-xr-xr-x 1 root root 67468 Dec 8 13:29 /bin/ps
6c8efea739af00a686681021583df164 /bin/ps
After up2date:
-r-xr-xr-x 1 root root 68992 Dec 8 13:29 /bin/ps
14f8907be0a49d10e4671194666233ff /bin/ps
I can force install the rpm for procps-2.0.17-5 and /bin/ps goes back to normal but a short time later the size and md5sum of /bin/ps changes again.