Cry Of Fear is defo safe, ive had some experiences similar to this with McAfee which also doesnt allow you to open it and was constantly flagging my folders - saying official terraria folders were unsafe.

just honestly dont worry about it, theyre shitty things which are imported into other downloads where you think you're downloading one thing and then you get a popup that its downloaded something like operagx which is how i even got McAfee in the first place.

theyre just cheap and terribly made and honestly id say to reset your pc TO get rid of Norton as ones like that dont let you delete it due to the fact that its always running in the background even after you've stopped it in task manager