Annabelle & MBRLock ransomware new evolution that directly infects the Windows computers Master Boot Record (MBR) Ransomware infection takes place when the user restarts the system once the ransomware copies the original MBR and overwrites it with its own malicious code. An MBR infection is an indication of deep infection in terms of the infected computers and maintains more persistence to do its further encryption operation. The authors are using various new tactics to bypass the security control and maintain its persistence.”]