To clarify, its less a virus running from watching, and more “check out this useless software plz click me” and the software is bloatware that wants a bunch of permissions to suck up data. Or ads for psuedo pyramid schemes or “lose weight fast” sort of shit.
So virus is probably the wrong term, technically. But bloatware, useless garbage, and scams, absolutely.
I use it on android, so I cant speak for ios, but this is their github page: https://github.com/revanced/revanced-manager