Yes it is. Its literally a free for all rootkit on your system. Anything you run can exploit it. Its an open invitation to take over your system. The only way I’d run this, would be under linux with proton emulation layer.

If its freshly installed, you still remember how to do it again… 15 minutes and its installed again.

That’s literally Office356. If you use outlook or any part of the office suite, you will have tons of traffic to there. If you drop it, it will stop working.