Cisco’s Talos team at Cisco Systems has released a free, open-source tool that protects the master boot record (MBR) sector of computers from modification by bootkits, ransomware, and other malicious attacks. MBR is the first sector (512 bytes) on your Hard drive that stores the bootloader, a piece of code that is responsible for booting the current Operating System. The tool is available for both Windows 32-bit and 64-bit platforms, and Cisco has open-sourced its source code on GitHub.
Source: https://thehackernews.com/2016/10/protect-mbr-malware.html