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CRYPTOVIROLOGY
Cryptovirology is a field that studies and researches about various ways by which cryptography application can be used to design malicious software's. It investigates how modern cryptographic paradigms and tools can be used to strengthen, improve and develop new malicious software's for malware attacks. Cryptovirology is a forward engineering discipline that is primarily used for attacking rather defending. This field emerged with an observation that a public-key cryptography can be used to break the symmetry between what an antivirus analyst sees regarding a malware and what attacker observes. Antivirus analyst observes a public key contained in the malware whereas an attacker sees the public key contained in the malware as well as its corresponding private key outside the malware. This public key allows the malware to perform trapdoor function on victim's computer that attacker can only undo.
WANNACRY RANSOMWARE
ImageSource WannaCry One of the most prolific attacks ! WannaCry is an ongoing ransomware cyber attack, that holds your computer hostage until the demanded ransom is paid. This Crypto Worm started its attack on 2017 May 12, and was reported to infect more than 2,30,000 PC in more than 150 countries. The malware attacks vulnerable operating systems running older v ersions of windows. Hackers used cyber tools stolen from the US National Security Agency to strike the attack. WannaCry encrypts and scrambles all the data in the infected computer, then the malware pops up with a screen displaying the ransom note and demanding fee payable in **Crypto Currency (BitCoins). The malware has now evolved into a new worm EternalRock, which does not have the “kill switch” like that of WannaCry.
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