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It can be used to mount extortion based attacks that cause loss of access to information, loss of confidentiality, and information leakage, tasks which cryptography typically prevents. [ 1 ] The field was born with the observation that public-key cryptography can be used to break the symmetry between what an antivirus analyst sees regarding ...
Download as PDF; Printable version; In other projects ... Extortion is the act of obtaining illegal benefit by the means of ... This list may not reflect recent ...
It is called cryptoviral extortion and it was inspired by the fictional facehugger in the movie Alien. [16] Cryptoviral extortion is the following three-round protocol carried out between the attacker and the victim. [1] [attacker→victim] The attacker generates a key pair and places the corresponding public key in the malware. The malware is ...
September: The CryptoLocker Trojan horse is discovered. CryptoLocker encrypts the files on a user's hard drive, then prompts them to pay a ransom to the developer to receive the decryption key. In the following months, several copycat ransomware Trojans were also discovered. December: The Gameover ZeuS Trojan is discovered. This type of virus ...
Newer variants of TeslaCrypt were not focused on computer games alone but also encrypted Word, PDF, JPEG and other files. In all cases, the victim would then be prompted to pay a ransom of $500 worth of bitcoins in order to obtain the key to decrypt the files. [4] [7]
CryptoLocker typically propagated as an attachment to a seemingly innocuous e-mail message, which appears to have been sent by a legitimate company. [5] A ZIP file attached to an email message contains an executable file with the filename and the icon disguised as a PDF file, taking advantage of Windows' default behaviour of hiding the extension from file names to disguise the real .EXE extension.
Conti is malware developed and first used by the Russia-based hacking group "Wizard Spider" in December, 2019. [1] [2] It has since become a full-fledged ransomware-as-a-service (RaaS) operation used by numerous threat actor groups to conduct ransomware attacks.
Ryuk is a type of ransomware known for targeting large, public-entity Microsoft Windows cybersystems.It typically encrypts data on an infected system, rendering the data inaccessible until a ransom is paid in untraceable bitcoin. [1]