There is nothing that have to check , you are right already and all
github/RadiumXMain downloads you will be find are Malware download Links.
Just simple , all you will be see and find with that Fake Github you can report and the User Accounts that posting it are hacked or sold to 100%.
But thanks for keeping your eyes open and for your help against this Malware Hacking Shit from them , every help and report is appreciated.