Ransomware Attack and Remedial: A Survey

Abstract

 Ransomware is a type of malware that deny user access to its own system and demands payment before the system is restored. According to Cybersecurity Ventures, ransomware harm expenses will reach $11.5 billion by 2019. That figure is up from 2015's $325 million and 2017's $5 billion. There are primary two types of ransomware attack; namely locky and crypto. Locky-ransomware locks the victim from accessing to its computer, while crypto-ransomware encrypts its victim’s important files. Crypto-ransomware is considered to be more dangerous, as the effect is irreversible, even after removing crypto-ransomware from the system. This is because all encrypted files remain encrypted without the decryption key. The existing contributions that use to protect the system from ransomware are strengthening the security system, backup the data regularly, keep the system updated and so on. However, most of the method that mention above are the general way to prevent the system from ransomware. In this report, we will discuss in more detail about the latest ransomware attacks. We also look as the most common infection vector used by ransomware to infect its victim. Then we provide recommended remedial to deal with ransomware attack