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Nowadays ransomware has become a new profitable form of attack. This type of malware acts as a form of extortion which encrypts the files in a victim's computer and forces the victim to pay the ransom to have the data recovered. Even…

Cryptography and Security · Computer Science 2021-03-23 Joshua Morris , Dan Lin , Marcellus Smith

Ransomware, a type of malicious software that encrypts a victim's files and only releases the cryptographic key once a ransom is paid, has emerged as a potentially devastating class of cybercrimes in the past few years. In this paper, we…

Cryptography and Security · Computer Science 2018-03-06 Florian Quinkert , Thorsten Holz , KSM Tozammel Hossain , Emilio Ferrara , Kristina Lerman

Malware proliferation and sophistication have drastically increased and evolved continuously. Recent indiscriminate ransomware victimizations have imposed critical needs of effective detection techniques to prevent damages. Therefore,…

Computers and Society · Computer Science 2020-05-13 Abdulrahman Alzahrani , Ali Alshehri , Hani Alshahrani , Huirong Fu

Ransomware represents a pervasive threat, traditionally countered at the operating system, file-system, or network levels. However, these approaches often introduce significant overhead and remain susceptible to circumvention by attackers.…

Cryptography and Security · Computer Science 2024-12-31 Nicolas Reategui , Roman Pletka , Dionysios Diamantopoulos

With the recent growth in the number of malicious activities on the internet, cybersecurity research has seen a boost in the past few years. However, as certain variants of malware can provide highly lucrative opportunities for bad actors,…

Cryptography and Security · Computer Science 2019-11-20 Amir Atapour-Abarghouei , Stephen Bonner , Andrew Stephen McGough

The continued evolution and diversity of malware constitutes a major threat in modern systems. It is well proven that security defenses currently available are ineffective to mitigate the skills and imagination of cyber-criminals…

Cryptography and Security · Computer Science 2019-04-02 Irina Baptista , Stavros Shiaeles , Nicholas Kolokotronis

Newly emerging variants of ransomware pose an ever-growing threat to computer systems governing every aspect of modern life through the handling and analysis of big data. While various recent security-based approaches have focused on…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Amir Atapour-Abarghouei , Stephen Bonner , Andrew Stephen McGough

Detection and analysis of a potential malware specifically, used for ransom is a challenging task. Recently, intruders are utilizing advanced cryptographic techniques to get hold of digital assets and then demand a ransom. It is believed…

Cryptography and Security · Computer Science 2020-06-08 Arslan Ashraf , Abdul Aziz , Umme Zahoora , Muttukrishnan Rajarajan , Asifullah Khan

Ransomware has appeared as one of the major global threats in recent days. The alarming increasing rate of ransomware attacks and new ransomware variants intrigue the researchers to constantly examine the distinguishing traits of ransomware…

Cryptography and Security · Computer Science 2022-11-15 Rawshan Ara Mowri , Madhuri Siddula , Kaushik Roy

Currently, different forms of ransomware are increasingly threatening Internet users. Modern ransomware encrypts important user data and it is only possible to recover it once a ransom has been paid. In this paper we show how…

Cryptography and Security · Computer Science 2018-04-10 Krzysztof Cabaj , Wojciech Mazurczyk

Vicious assaults, malware, and various ransomware pose a cybersecurity threat, causing considerable damage to computer structures, servers, and mobile and web apps across various industries and businesses. These safety concerns are…

Cryptography and Security · Computer Science 2023-11-29 Kavitha Kunku , ANK Zaman , Kaushik Roy

Ransomware, a class of self-propagating malware that uses encryption to hold the victims' data ransom, has emerged in recent years as one of the most dangerous cyber threats, with widespread damage; e.g., zero-day ransomware WannaCry has…

Cryptography and Security · Computer Science 2017-09-27 Qian Chen , Robert A. Bridges

Ransomware is a growing threat that typically operates by either encrypting a victim's files or locking a victim's computer until the victim pays a ransom. However, it is still challenging to detect such malware timely with existing…

Cryptography and Security · Computer Science 2021-02-01 Muhammad Ejaz Ahmed , Hyoungshick Kim , Seyit Camtepe , Surya Nepal

Ransomware, a fearsome and rapidly evolving cybersecurity threat, continues to inflict severe consequences on individuals and organizations worldwide. Traditional detection methods, reliant on static signatures and application behavioral…

Cryptography and Security · Computer Science 2024-06-13 Dionysios Diamantopoulos , Roman Pletka , Slavisa Sarafijanovic , A. L. Narasimha Reddy , Haris Pozidis

Crypto-ransomware attacks have been a growing threat over the last few years. The goal of every ransomware strain is encrypting user data, such that attackers can later demand users a ransom for unlocking their data. To maximise their…

Cryptography and Security · Computer Science 2025-01-23 Marco Venturini , Francesco Freda , Emanuele Miotto , Mauro Conti , Alberto Giaretta

Ransomware poses a serious and fast-acting threat to critical systems, often encrypting files within seconds of execution. Research indicates that ransomware is the most reported cybercrime in terms of financial damage, highlighting the…

Cryptography and Security · Computer Science 2026-04-13 Busra Caliskan , Ibrahim Gulatas , H. Hakan Kilinc , A. Halim Zaim

Ransomware can prevent a user from accessing a device and its files until a ransom is paid to the attacker, most frequently in Bitcoin. With over 500 known ransomware families, it has become one of the dominant cybercrime threats for law…

Cryptography and Security · Computer Science 2018-04-12 Masarah Paquet-Clouston , Bernhard Haslhofer , Benoit Dupont

Ransomware is malicious software that is a prominent global cybersecurity threat. Typically, ransomware encrypts data on a system, rendering the victim unable to decrypt it without the attacker's private key. Subsequently, victims often pay…

Cryptography and Security · Computer Science 2024-02-12 Giyoon Kim , Soojin Kang , Seungjun Baek , Kimoon Kim , Jongsung Kim

Ransomware has become an increasingly popular type of malware across the past decade and continues to rise in popularity due to its high profitability. Organisations and enterprises have become prime targets for ransomware as they are more…

Cryptography and Security · Computer Science 2022-02-08 Grant McDonald , Pavlos Papadopoulos , Nikolaos Pitropakis , Jawad Ahmad , William J. Buchanan

Ransomware is a malicious class of software that utilises encryption to implement an attack on system availability. The target's data remains encrypted and is held captive by the attacker until a ransom demand is met. A common approach used…

Cryptography and Security · Computer Science 2022-10-25 Simon R Davies , Richard Macfarlane , William J. Buchanan