This is "malware" just a very bad one at that. It cannot brick your headset, make you factory reset, or load porn everytime you boot your headset.
What this essentially does is jumpscare you with a pedophiles face, then it will lag your game using a obsurdly large mesh strapped to your face, meanwhile it loads up naughty sites!
This was meant to be a fun project to see how many vunurable children there is on the internet, remember, be cautious when downloading things onto your devices, even if it cannot do much.
Android Package Kits, and specifically Unity Builds cannot contain anything that will BREAK your headset or steal personal information as it is just not possible.
This WILL not steal information whatsoever and is harmless to your quest device.