Ransomware is a malware family that using security techniques such as cryptography to hijacking user files and associated resources and requests cryptocurrency in exchange for the locked data. There is no limit to who can be targeted by ransomware since it can be transmitted over the internet. Like traditional malware, ransomware may enter the system utilizing “social engineering, malware advertising, spam emails, take advantage of vulnerabilities, drive-by downloads or through open ports or by utilizing back doors”. But in contrast to traditional malware, even after removal, ransomware influence is irreparable and tough to alleviate its impact without its creator assistance. This kind of attack has a straightforward financial implication, which is fueled by encryption technology, cyber currency. Therefore, ransomware has turned into a profitable business that has obtained rising popularity between attackers. As stated by “Cybersecurity Ventures”, ransomware is the quickest increasing type of cybercrime. Since, global ransomware wastage expense is predicted to hit $20 billion in 2021, up from just $325 million in 2015 which, is 57X extra in 2021. In this paper, a brief of the recent research in the prevention of ransomware attacks and the best practices to mitigate the attack impact is presented.

Ransomware Cryptography Cryptocurrency Cybercrime Malware Cybersecurity Vulnerability Cyberattacks.