BitDefender Releases Free Petya Ransomware 'Vaccine'

Tool decrypts endpoints victimized by the nasty ransomware that encrypts entire disks.

Dark Reading Staff, Dark Reading

April 20, 2016

1 Min Read
Dark Reading logo in a gray background | Dark Reading

Because of a flaw in the encryption process used by the Petya ransomware, security researchers were able to reverse-engineer the malicious code and create a "vaccine," that will enable victims to decrypt their infected endpoints. 

Petya is a nasty new ransomware that encrypts not just files, but the entire disk. Instead of eating up memory and time by encrypting files individually, Petya installs itself like a bootkit and encrypts the filesystem's master file table -- a much quicker method that leaves "no time to call for help," F-Secure researchers said. Petya is vicious enough to have inspired federal authorities in both the US and Canada to issue advisories. 

This is not the first time a security firm has released a tool that can decrypt endpoints that were locked by a particular strain of cryptoransomware. Last year, Cisco's Talos Labs developed such a cure for TeslaCrypt

Download BitDefender's free Petya decryption tool here

Related stories:

Interop-reg-ad.jpg

About the Author

Dark Reading Staff

Dark Reading

Dark Reading is a leading cybersecurity media site.

Keep up with the latest cybersecurity threats, newly discovered vulnerabilities, data breach information, and emerging trends. Delivered daily or weekly right to your email inbox.

You May Also Like


More Insights