If I'm reading this right, would there be any persistent evidence of the executed payload? I can't think of a reason anything would have to go to disk in this situation, so a compromise could easily look like an Auth failure in the logs .... maybe a difference in timings .. but that's about it ...
Unless the payload did something that produced evidence, or if the program using openssl that was affected was, for some reason, having all of its actions logged, then no, probably not.
