MBRFilter Protects Computers from MBR Malware and Ransomware

Cisco's Talos team released today a new free tool called MBRFilter that protects a computer's MBR sector against unauthorized access, which can be useful for safeguarding PCs against MBR-targeting malware, such as the Petya, Satana, or HDDCryptor ransomware.

At its core, the tool is nothing more than a driver that changes your MBR into a read-only mode and prevents any application from modifying or writing data to that particular section of your hard drive.

The MBR stands for Master Boot Record and is a special section of all hard disk drives.

The MBR is located right at the beginning of the HDD's storage space and k...