This is one of the creepiest movies i have seen.

Can’t remember much other than it is a group of young adults getting murdered one by one by this *thing*(monster/ghost/omnipresent being) but its ending is stuck in my mind:

After all her friends have been murdered by this thing that can appear anywhere, a girl covers sitting with her back against a wall. She has realized running is futile and is paralyzed as a (CGI) arm slowly crawls up her body in a weird snake ish way coiling around her neck, the hand coils up to cover her mouth as it start to squeeze her neck choking hers as she try to scream.

This is probably from after 2010 and has some pretty good cgi.

Any leads appreciated.

Thanks