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Emergence of crypto-ransomware has significantly changed the cyber threat landscape. A crypto ransomware removes data custodian access by encrypting valuable data on victims' computers and requests a ransom payment to reinstantiate…

Cryptography and Security · Computer Science 2018-08-07 Sajad Homayoun , Ali Dehghantanha , Marzieh Ahmadzadeh , Sattar Hashemi , Raouf Khayami

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 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

Ransomware attacks have increased significantly in recent years, causing great destruction and damage to critical systems and business operations. Attackers are unfailingly finding innovative ways to bypass detection mechanisms,…

Cryptography and Security · Computer Science 2022-04-01 Avinash Singh , Richard Adeyemi Ikuesan , Hein Venter

Ransomware is considered as a significant threat for most enterprises since the past few years. In scenarios wherein users can access all files on a shared server, one infected host can lock the access to all shared files. We propose a tool…

Cryptography and Security · Computer Science 2022-02-16 Eduardo Berrueta , Daniel Morato , Eduardo Magaña , Mikel Izal

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

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

Linux-based cloud environments have become lucrative targets for ransomware attacks, employing various encryption schemes at unprecedented speeds. Addressing the urgency for real-time ransomware protection, we propose leveraging the…

Cryptography and Security · Computer Science 2024-09-11 Adrian Brodzik , Tomasz Malec-Kruszyński , Wojciech Niewolski , Mikołaj Tkaczyk , Krzysztof Bocianiak , Sok-Yen Loui

Ransomware constitutes a significant threat to the Android operating system. It can either lock or encrypt the target devices, and victims are forced to pay ransoms to restore their data. Hence, the prompt detection of such attacks has a…

Cryptography and Security · Computer Science 2019-07-03 Michele Scalas , Davide Maiorca , Francesco Mercaldo , Corrado Aaron Visaggio , Fabio Martinelli , Giorgio Giacinto

Ransomware's escalating sophistication necessitates tamper-resistant, off-host detection solutions that capture deep disk activity beyond the reach of a compromised operating system. Existing detection systems use host/kernel signals or…

Cryptography and Security · Computer Science 2026-03-13 Md Raz , Venkata Sai Charan Putrevu , Prashanth Krishnamurthy , Farshad Khorrami , Ramesh Karri

Ransomware remains a critical threat to cybersecurity, yet publicly available datasets for training machine learning-based ransomware detection models are scarce and often have limited sample size, diversity, and reproducibility. In this…

Cryptography and Security · Computer Science 2025-05-27 Faithful Chiagoziem Onwuegbuche , Adelodun Olaoluwa , Anca Delia Jurcut , Liliana Pasquale

The damage caused by crypto-ransomware, due to encryption, is difficult to revert and cause data losses. In this paper, a machine learning (ML) classifier was built to early detect ransomware (called crypto-ransomware) that uses…

Cryptography and Security · Computer Science 2020-03-17 Chih-Yuan Yang , Ravi Sahita

Recent statistics show that in 2015 more than 140 millions new malware samples have been found. Among these, a large portion is due to ransomware, the class of malware whose specific goal is to render the victim's system unusable, in…

Cryptography and Security · Computer Science 2016-09-13 Daniele Sgandurra , Luis Muñoz-González , Rabih Mohsen , Emil C. Lupu

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 uses encryption methods to make data inaccessible to legitimate users. To date a wide range of ransomware families have been developed and deployed, causing immense damage to governments, corporations, and private users. As these…

Cryptography and Security · Computer Science 2023-05-23 Aldin Vehabovic , Nasir Ghani , Elias Bou-Harb , Jorge Crichigno , Aysegul Yayimli

Among many prevailing malware, crypto-ransomware poses a significant threat as it financially extorts affected users by creating denial of access via unauthorized encryption of their documents as well as holding their documents hostage and…

Cryptography and Security · Computer Science 2020-11-25 Nitin Pundir , Mark Tehranipoor , Fahim Rahman

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

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

The ransomware threat has loomed over our digital life since 1989. Criminals use this type of cyber attack to lock or encrypt victims' data, often coercing them to pay exorbitant amounts in ransom. The damage ransomware causes ranges from…

Cryptography and Security · Computer Science 2023-06-22 Kenan Begovic , Abdulaziz Al-Ali , Qutaibah Malluhi

File encrypting ransomware increasingly employs intermittent encryption techniques, encrypting only parts of files to evade classical detection methods. These strategies, exemplified by ransomware families like BlackCat, complicate file…

Cryptography and Security · Computer Science 2026-02-24 Ynes Ineza , Gerald Jackson , Prince Niyonkuru , Jaden Kevil , Abdul Serwadda
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