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Ransomware attacks have caused billions of dollars in damages in recent years, and are expected to cause billions more in the future. Consequently, significant effort has been devoted to ransomware detection and mitigation. Behavioral-based…

Cryptography and Security · Computer Science 2025-07-14 Dorjan Hitaj , Giulio Pagnotta , Fabio De Gaspari , Lorenzo De Carli , Luigi V. Mancini

Ransomware is a kind of malware using cryptographic mechanisms to prevent victims from normal use of their computers. As a result, victims lose the access to their files and desktops unless they pay the ransom to the attackers. By the end…

Cryptography and Security · Computer Science 2020-11-23 Tianrou Xia , Yuanyi Sun , Sencun Zhu , Zeeshan Rasheed , Khurram Shafique

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

Over the past three years, especially following WannaCry malware, ransomware has become one of the biggest concerns for private businesses, state, and local government agencies. According to Homeland Security statistics, 1.5 million…

Cryptography and Security · Computer Science 2020-03-18 Murat Ozer , Said Varlioglu , Bilal Gonen , Mehmet F. Bastug

In recent years, there has been a noticeable increase in cyberattacks using ransomware. Attackers use this malicious software to break into networks and harm computer systems. This has caused significant and lasting damage to various…

Cryptography and Security · Computer Science 2024-02-06 Ali Mehrban , Shirin Karimi Geransayeh

Proliferation of cryptocurrencies (e.g., Bitcoin) that allow pseudo-anonymous transactions, has made it easier for ransomware developers to demand ransom by encrypting sensitive user data. The recently revealed strikes of ransomware attacks…

Cryptography and Security · Computer Science 2019-06-20 Cuneyt Gurcan Akcora , Yitao Li , Yulia R. Gel , Murat Kantarcioglu

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

Ransomware can produce direct and controllable economic loss, which makes it one of the most prominent threats in cyber security. As per the latest statistics, more than half of malwares reported in Q1 of 2017 are ransomware and there is a…

Cryptography and Security · Computer Science 2018-02-13 Manaar Alam , Sarani Bhattacharya , Debdeep Mukhopadhyay , Anupam Chattopadhyay

Ransomware can produce direct and controllable economic loss, which makes it one of the most prominent threats in cyber security. As per the latest statistics, more than half of malwares reported in Q1 of 2017 are ransomwares and there is a…

Cryptography and Security · Computer Science 2020-04-07 Manaar Alam , Sayan Sinha , Sarani Bhattacharya , Swastika Dutta , Debdeep Mukhopadhyay , Anupam Chattopadhyay

We present an approach to identifying which ransomware adversaries are most likely to target specific entities, thereby assisting these entities in formulating better protection strategies. Ransomware poses a formidable cybersecurity threat…

Cryptography and Security · Computer Science 2025-02-10 Spencer Massengale , Philip Huff

The rapid evolution of encryption-based threats has rendered conventional detection mechanisms increasingly ineffective against sophisticated attack strategies. Monitoring entropy variations across hierarchical system levels offers an…

Cryptography and Security · Computer Science 2025-08-11 Hayden Srynn , Gilbert Pomeroy , Florence Lytton , Godfrey Ashcombe , Valentine Harcourt , Duncan Pettigrew

In the banking industry, ransomware is a well-known threat, but since the beginning of 2022, cryptojacking, an emerging threat is posing a considerable challenge to the banking industry. Ransomware has variants, and the attackers keep…

Cryptography and Security · Computer Science 2023-11-28 Naresh Kshetri , Mir Mehedi Rahman , Sayed Abu Sayeed , Irin Sultana

Cyber attacks are increasingly becoming prevalent and causing significant damage to individuals, businesses and even countries. In particular, ransomware attacks have grown significantly over the last decade. We do the first study on mining…

Cryptography and Security · Computer Science 2020-11-03 Chetan Bansal , Pantazis Deligiannis , Chandra Maddila , Nikitha Rao

Ransomware has become a significant global threat with the ransomware-as-a-service model enabling easy availability and deployment, and the potential for high revenues creating a viable criminal business model. Individuals, private…

Cryptography and Security · Computer Science 2018-07-30 Omar M. K. Alhawi , James Baldwin , Ali Dehghantanha

The rise of ransomware attacks has necessitated the development of effective strategies for identifying and mitigating these threats. This research investigates the utilization of a feature selection algorithm for distinguishing…

Cryptography and Security · Computer Science 2024-02-08 Mike Nkongolo

Ransomware has been an ongoing issue since the early 1990s. In recent times ransomware has spread from traditional computational resources to cyber-physical systems and industrial controls. We devised a series of experiments in which…

Cryptography and Security · Computer Science 2022-01-13 Anthony Melaragno , William Casey

Ransomware has grown to become one of the most damaging types of cybercrime, affecting private and public organizations in any sector. While early types of ransomware targeted many victims via automated attacks, ransomware groups have…

Cryptography and Security · Computer Science 2026-05-26 Lea Müller , York Yannikos

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

Distributed Reflective Denial of Service (DRDoS) attacks are an immanent threat to Internet services. The potential scale of such attacks became apparent in March 2018 when a memcached-based attack peaked at 1.7 Tbps. Novel services built…

Cryptography and Security · Computer Science 2018-08-06 Thomas Lukaseder , Kevin Stölzle , Stephan Kleber , Benjamin Erb , Frank Kargl

Ransomware attacks have emerged as one of the most significant cybersecurity threats. Despite numerous proposed detection and defense methods, existing approaches face two fundamental limitations in large-scale industrial applications:…

Cryptography and Security · Computer Science 2024-08-30 Shenao Wang , Feng Dong , Hangfeng Yang , Jingheng Xu , Haoyu Wang
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