BitDefender has found a flaw in the Petya ransomware and has updated Bitdefender Anti-Ransomware by reverse-engineering the malicious code.

Petya is a nasty bit of ransomware that does not just encrypt files but encrypts the entire disk. It installs itself like a bootkit and encrypts the filesystem's master file table. It is so nasty that federal authorities in both Canada and the US have issued advisories.

This is not the first time a tool has been created by security techs to decrypt files. Cisco's Talos Labs developed such a cure for TeslaCrypt.

You can download the free Petya decryption tool http://www.majorgeeks.com/files/details/bitdefender_anti_ransomware.html.

Source: DarkReading