>And if a machine is already exploited, it's too late to do just that. You need to rebuild the whole disk image because anything on it could be compromised.

this is more targeted at the people who run the PoC to see if their machine is vulnerable.

just transcribing some relevant stuff from https://github.com/V4bel/dirtyfrag/issues/1 so that people visiting this thread dont need to poke around a bunch of different places.