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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

We present SHIELD, a hierarchical algorithm that reduces both the decision-variable dimension and the constraint set in $\ell_1$-regularized convex programs. From strong convexity and Lagrangian duality, we derive certificates that…

Robotics · Computer Science 2026-05-13 Hansung Kim , Siddharth H. Nair , Francesco Borrelli

The Supervisory control and data acquisition (SCADA) systems have been continuously leveraging the evolution of network architecture, communication protocols, next-generation communication techniques (5G, 6G, Wi-Fi 6), and the internet of…

Systems and Control · Electrical Eng. & Systems 2021-04-16 Manoj Basnet , Subash Poudyal , Mohd. Hasan Ali , Dipankar Dasgupta

Encryption-based cyber threats continue to evolve, leveraging increasingly sophisticated cryptographic techniques to evade detection and persist within compromised systems. A hierarchical classification framework designed to analyze…

Cryptography and Security · Computer Science 2025-08-11 Dominic Abernethy , Nathaniel Weatherstone , Tristan Ravensdale , Lafedi Svet

Ransomware has emerged as a persistent cybersecurity threat,leveraging robust encryption schemes that often remain unbroken even after public disclosure of source code. Motivated by the technical resilience of such mechanisms, this paper…

Cryptography and Security · Computer Science 2025-04-17 Jiahui Shang , Luning Zhang , Zhongxiang Zheng

As a result of decades of research, Windows malware detection is approached through a plethora of techniques. However, there is an ongoing mismatch between academia -- which pursues an optimal performances in terms of detection rate and low…

Cryptography and Security · Computer Science 2024-12-20 Andrea Ponte , Dmitrijs Trizna , Luca Demetrio , Battista Biggio , Ivan Tesfai Ogbu , Fabio Roli

We introduce Secure Haplotype Imputation Employing Local Differential privacy (SHIELD), a program for accurately estimating the genotype of target samples at markers that are not directly assayed by array-based genotyping platforms while…

Quantitative Methods · Quantitative Biology 2023-09-15 Marc Harary

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

Malicious encryption techniques continue to evolve, bypassing conventional detection mechanisms that rely on static signatures or predefined behavioral rules. Spectral analysis presents an alternative approach that transforms system…

Cryptography and Security · Computer Science 2025-03-26 Dominica Ayanara , Atticus Hillingworth , Jonathan Casselbury , Dominic Montague

Ransomware is a type of malware which encrypts user data and extorts payments in return for the decryption keys. This cyberthreat is one of the most serious challenges facing organizations today and has already caused immense financial…

Cryptography and Security · Computer Science 2023-11-15 Aldin Vehabovic , Hadi Zanddizari , Nasir Ghani , G. Javidi , S. Uluagac , M. Rahouti , E. Bou-Harb , M. Safaei Pour

Traditional techniques to prevent damage from ransomware attacks are to detect and block attacks by monitoring the known behaviors such as frequent name changes, recurring access to cryptographic libraries and exchange keys with remote…

Cryptography and Security · Computer Science 2019-04-11 Jinwoo Ahn , Donggyu Park , Chang-Gyu Lee , Donghyun Min , Junghee Lee , Sungyong Park , Qian Chen , Youngjae Kim

Hardware-based Malware Detectors (HMDs) have shown promise in detecting malicious workloads. However, the current HMDs focus solely on the CPU core of a System-on-Chip (SoC) and, therefore, do not exploit the full potential of the hardware…

Cryptography and Security · Computer Science 2024-02-29 Harshit Kumar , Biswadeep Chakraborty , Sudarshan Sharma , Saibal Mukhopadhyay

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

Detecting malware, especially ransomware, is essential to securing today's interconnected ecosystems, including cloud storage, enterprise file-sharing, and database services. Training high-performing artificial intelligence (AI) detectors…

Cryptography and Security · Computer Science 2025-11-04 Daniel M. Jimenez-Gutierrez , Enrique Zuazua , Joaquin Del Rio , Oleksii Sliusarenko , Xabi Uribe-Etxebarria

Ransomware is currently the key threat for individual as well as corporate Internet users. Especially dangerous is crypto ransomware that encrypts important user data and it is only possible to recover it once a ransom has been paid.…

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

There has been a surge of interest in using machine learning (ML) to automatically detect malware through their dynamic behaviors. These approaches have achieved significant improvement in detection rates and lower false positive rates at…

Machine Learning · Computer Science 2019-05-20 Li Chen , Chih-Yuan Yang , Anindya Paul , Ravi Sahita

Ransomware has remained one of the most notorious threats in the cybersecurity field. Moving Target Defense (MTD) has been proposed as a novel paradigm for proactive defense. Although various approaches leverage MTD, few of them rely on the…

Cryptography and Security · Computer Science 2023-11-17 Jan von der Assen , Alberto Huertas Celdrán , Rinor Sefa , Gérôme Bovet , Burkhard Stiller

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

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

In the case of malware analysis, categorization of malicious files is an essential part after malware detection. Numerous static and dynamic techniques have been reported so far for categorizing malware. This research presents a deep…

Cryptography and Security · Computer Science 2020-12-29 Muhammad Furqan Rafique , Muhammad Ali , Aqsa Saeed Qureshi , Asifullah Khan , Anwar Majid Mirza