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Petya Ransomware: What You Need to Know

On Tuesday, a variant of the ransomware “Petya” began propagating in several countries across Europe. This new variant leverages the EternalBlue exploit used in WannaCry, and also takes advantage of misconfigured permissions to spread throughout the network.

EternalBlue is a leaked exploit developed by the NSA that leverages the vulnerability patched in MS17-010. All unpatched versions of Windows are vulnerable to EternalBlue, excluding recent versions of Windows 10. Microsoft has also chosen to release patches for some end-of-support versions of Windows.

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