Petya is a type of ransomware that appeared in early 2016 and returned to a trick first seen in the early 1990s, whereby criminals do not encrypt all the files on your computer but instead they attack a part of the operating system called the Master File Table (MFT).
From the looks of images being posted across social media, the ransomware note is in English and demanding $300 in Bitcoin, similar to the WannaCry ransom.
We are obviously researching on malware and system vulnerabilities that have existed and those emerging. The recent cyber attacks have been an eye opener for us here at cod.e
After finding the reference to this domain in the Trojan’s code, the researcher registered the domain, thus suspending the attack. In the remainder of the day, the domain was addressed tens of thousands of times, which means that tens of thousands of computers were spared.
Unfortunately, there is currently no way to decrypt files that have been encrypted by WannaCry, however there are researchers right now totally dedicated to this kind of cyber threat.