Probably the best thing to do is to move/rename/delete (your choice - they all amount to the same thing) the script, then reboot and look for error messages. That should tell you which component is running it.
Also, if the overall goal is simply to not be running it anymore, then, well, mission accomplished!
"L'enfer, c'est les autres"
G fytc hsqr rum umpbq rm qyw rm rfc kmbq md rfgq dmpsk:
J lnacjrw njbruh-carppnanm vxm rb mnuncrwp vh yxbcb!