Hibernating life means that it can’t reproduce, which means that it can’t exist in asteroids, or else it would just all die off in a few centuries, also, how did it get to the asteroid in the first place if it’s hibernating? One must assume that non-hibernating asteroid life exists too. And as such life in mars would exist too.
It being proto-DNA doesn’t change the fact that it can’t survive for long periods of time.