Yes, an attacker using checkm8 could do that if they had a separate exploit for persistence. That exploit would be in iOS and take over at a later point in the boot process, and it would be possible for Apple to patch it with an iOS update. Those bugs are hard to find, but there have been dozens discovered in the past.
I’m a little confused, which part of my comment would require persistence? I was suggesting a lulzy payload that would prevent the user from _actually_ restarting their device by changing the behavior of the power button. As a means of bypassing the “just restart your phone every time you use it” countermeasure.
Comments
Yes, an attacker using checkm8 could do that if they had a separate exploit for persistence. That exploit would be in iOS and take over at a later point in the boot process, and it would be possible for Apple to patch it with an iOS update. Those bugs are hard to find, but there have been dozens discovered in the past.
I’m a little confused, which part of my comment would require persistence? I was suggesting a lulzy payload that would prevent the user from _actually_ restarting their device by changing the behavior of the power button. As a means of bypassing the “just restart your phone every time you use it” countermeasure.
Would not work, as this is indeed a lower-level function.