Force a reboot, jam a fob in, hit F1, cursor down three times, tab, down five times, space, F12, ransomware now loaded, except: System doesn't boot because PCR

Force a reboot, jam a fob in, hit F1, cursor down three times, tab, down five times, space, F12, ransomware now loaded, except: System doesn't boot because PCR 7 is now different, just like it would be if you didn't have to do those additional (rapid) keypresses. This is not the threat model you're looking for.