Ransomware Attack and Remedial: A Survey | Author : L.A. Kong, K.N., Yeo, R.X., Ng, S.H. Kok | Abstract | Full Text | 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 2015s $325 million and 2017s $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 victims 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 |
| Ransomware Remedial Through Virtualization | Author : R. Ilangovan, Y.K. Chua, S.H. Kok | Abstract | Full Text | Abstract :–Ransomware is a growing threat to the global population. There are many attacks such attacks since 2012,
notable ones namely WannaCry and Petya. These attacks had costed millions, maybe even billions of dollars in economic
losses. Ransomware employs a method known as cryptoviral extortion, a three-step protocol that aims to take the users
data hostage and demand a ransom for it. There are existing defensive countermeasures against these ransomwares such
as Paybreak; a decryptor for files, ShieldFS; a filesystem to detect malware based on adaptive models that is constantly
being updated and SSD-insider; a mechanism that uses the NAND flash delayed deletion feature to recover files. Studies
have also shown that awareness is important in defending against ransomware attacks, and end-user habits may increase
the likelihood of being at risk. Therefore, to address the issue where defence mechanisms are not addressing, the
awareness aspect, we have proposed a solution to address both the technical aspect of defence and the socio-cultural
aspect. Our solution aims to educate the user to improve and supplement our defence. The end-user plays an active role
rather than a passive stance in the other solutions listed above. In the worst-case scenario, the end-user should be able to
deal with the scenario appropriately by not giving in to the demands of the attacker via our solution. |
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