The ucxjcitx.tar.gz file is part of the RA Core installation file.
It can be download going to downloads.automic.com
For the filter pick the following (change the version to fit the one you are on)
Scroll down for the result and you will find a file/downloadble link with label "Agent RA Core"
Inside of that is what you are looking for - ucxjcitx.tar.gz