Last June 27, there was a huge outbreak of a Petya-esque malware with WannaCry-style infector in the Ukraine. Since there is still confusion about how exactly this malware is linked to the original Petya, we have prepared this small guide on the background of the Petya family.
As research concluded, the original author of Petya, Janus, was not involved in the latest attacks on Ukraine. As a result of the recent events, Janus released his private key, allowing all the victims of the previous Petya attacks, to get their files back.
Since 27th June we’ve been investigating the outbreak of the new Petya-like malware armed with an infector similar to WannaCry. Since the day one, various contradicting theories started popping up. In this post, we will try to fill this gap, by making a step-by-step comparison of the current kernel and the one on which it is based (Goldeneye Petya).