/usr/bin/helpmidas is in eso-midas 15.09pl1.0-2+b2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/../lib/eso-midas/15SEP/system/unix/helpmidas
/usr/bin/../lib/eso-midas/15SEP/system/unix/helpmidas