how cryptography is used in malware and other cyber attacks
A cryptographis attack is a method for circumventing the security of a system by finding a weekness in a code,cipher,cryptographic protocol or key management scheme.
this process is also called " cryptanalysis ".
see also category: Computer security exploits
category:malware
This category has sub 6 categories:
1) attack on publlic-key cryptosystem
2)choosen plaintext attacks
3)cryptanalytic software
4)password crecking software
5)ransomewhere
6)side-channel attack
malware encription scheme:-
--> in each scheme we have an algorithm e encrioting messages.an algoritham D decrypting ciphrtext and an
algoritham R rerandomizing ciphertext.
--> in the path variant of the extended scheme we add a padding functinality to the rerandomize algoritham and rename it to padding algoritham P.
encryption:-
for a message m and jey k the encyption algoritham E(k,m) outputs a ciphertext c.
Decryption:-
for a ciphertext s and a key k the decryption algoritham D(c,k) either outputs a message m or a special symbol indicating decryption failure.
Rerandomization:-
for a ciphertext c,encrypting a message m, the rerandomize algorithm R(c) outputs a ciphertext 0 encypting the same message m.
Crrectness:-
if c was output from E(k,m) then D(k,c) will always output m except with negligible probability.
Key indistinguishability:-
it should be hard to say something about which key a chiphertext has been encypted under.
Insdistingushability:-
it should be hard to decide if two ciphertext,encypted under the same key, decrypts to the same messages or not.
try to find articles that deal with attacks and malware and what is new on the horizon for attacks or fixes for those attacks. Make sure you discuss how these new attacks are different from previous attempts and how dangerous they may be.
Please provide a link to an article about a recent cyber attack that falls into malware method . Be sure to identify which malware method of cyber-threat is represented in the article.
Critical Thinking 2-5: Crypto-malware Attacks Use the Internet to research some of the recent different crypto-malware ransomware attacks. What do they do? Why are they so successful? How are they being spread? What can users do to protect themselves? Write a one-page summary of your research.
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What entities might pay "cyber mercenaries" to create some of the malware discribed in this feature?
How are pharming and phishing attacks often used in concert with each other? In other words, what synergy do these attacks have to maximize the effectiveness of an attack?
Phishing, Malware, Spyware. Have you been targeted by any of these kinds of attacks? What was the outcome? What kind of attack is it when a bad actor tries to slow or block access to network services?
A 2018 Barracuda report found that cyber attacks are shifting from _____. Trojans to ransomware adware to DDoS DDoS to adware ransomware to Trojans
In this scenario, hackers launch cyber attacks that affect several parts of the nation’s financial infrastructure over the course of several weeks. Specifically, sensitive credit card processing facilities are hacked and numbers are released to the Internet, causing 120 million cards to be cancelled; automated teller machines (ATMs) fail nearly simultaneously across the nation; major companies report payroll checks are not being received by workers; and several large pension and mutual fund companies have computer malfunctions so severe that they...
In this scenario, hackers launch cyber attacks that affect several parts of the nation’s financial infrastructure over the course of several weeks. Specifically, sensitive credit card processing facilities are hacked and numbers are released to the Internet, causing 120 million cards to be cancelled; automated teller machines (ATMs) fail nearly simultaneously across the nation; major companies report payroll checks are not being received by workers; and several large pension and mutual fund companies have computer malfunctions so severe that they...