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

密码学与安全 · 计算机科学 2022-12-12 Rawshan Ara Mowri , Madhuri Siddula , Kaushik Roy

Ransomware has become one of the most serious cybersecurity threats causing major financial losses and operational disruptions worldwide.Traditional detection methods such as static analysis, heuristic scanning and behavioral analysis often…

密码学与安全 · 计算机科学 2026-03-04 Asifullah Khan , Aimen Wadood , Mubashar Iqbal , Umme Zahoora

The aim of this study is to propose and evaluate an advanced ransomware detection and classification method that combines a Stacked Autoencoder (SAE) for precise feature selection with a Long Short Term Memory (LSTM) classifier to enhance…

机器学习 · 计算机科学 2024-04-24 Mike Nkongolo , Mahmut Tokmak

Multilayer networks offer a powerful framework for modeling complex systems across diverse domains, effectively capturing multiple types of connections and interdependent subsystems commonly found in real world scenarios. To analyze these…

社会与信息网络 · 计算机科学 2026-02-20 Martin Guillemaud , Vera Dinkelacker , Mario Chavez

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…

密码学与安全 · 计算机科学 2026-03-13 Md Raz , Venkata Sai Charan Putrevu , Prashanth Krishnamurthy , Farshad Khorrami , Ramesh Karri

Ransomware continues to evolve as one of the most disruptive cyber threats, with recent variants increasingly leveraging automated and AI-assisted techniques to evade traditional signature-based defenses. Early detection of such attacks…

密码学与安全 · 计算机科学 2026-04-21 Prabhudarshi Nayak , Gogulakrishnan Thiyagarajan , Debashree Priyadarshini , Vinay Bist , Rohan Swain

Ransomware continues to evolve in complexity, making early and explainable detection a critical requirement for modern cybersecurity systems. This study presents a comparative analysis of three Transformer-based Large Language Models (LLMs)…

密码学与安全 · 计算机科学 2026-01-21 Elodie Mutombo Ngoie , Mike Nkongolo Wa Nkongolo , Peace Azugo , Mahmut Tokmak

Ransomware has emerged as an infamous malware that has not escaped a lot of myths and inaccuracies from media hype. Victims are not sure whether or not to pay a ransom demand without fully understanding the lurking consequences. In this…

密码学与安全 · 计算机科学 2021-02-23 Aaron Zimba , Mumbi Chishimba , Sipiwe Chihana

Cybersecurity solutions have shown promising performance when detecting ransomware samples that use fixed algorithms and encryption rates. However, due to the current explosion of Artificial Intelligence (AI), sooner than later, ransomware…

Hyperbolic geometry has emerged as an effective latent space for representing complex networks, owing to its ability to capture hierarchical organization and heterogeneous connectivity patterns using low-dimensional embeddings. As a result,…

机器学习 · 计算机科学 2026-05-01 Sofía Pérez Casulo , Marcelo Fiori , Bernardo Marenco , Federico Larroca

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…

密码学与安全 · 计算机科学 2023-05-23 Aldin Vehabovic , Nasir Ghani , Elias Bou-Harb , Jorge Crichigno , Aysegul Yayimli

Embedding into hyperbolic space is emerging as an effective representation technique for datasets that exhibit hierarchical structure. This development motivates the need for algorithms that are able to effectively extract knowledge and…

数据结构与算法 · 计算机科学 2020-09-03 Xian Wu , Moses Charikar

Increasing production and exchange of multimedia content has increased the need for better protection of copyright by means of watermarking. Different methods have been proposed to satisfy the tradeoff between imperceptibility and…

多媒体 · 计算机科学 2017-09-12 Majid Mohrekesh , Shekoofeh Azizi , Shahram Shirani , Nader Karimi , Shadrokh Samavi

Attribute recognition is a crucial but challenging task due to viewpoint changes, illumination variations and appearance diversities, etc. Most of previous work only consider the attribute-level feature embedding, which might perform poorly…

计算机视觉与模式识别 · 计算机科学 2020-05-26 Jie Yang , Jiarou Fan , Yiru Wang , Yige Wang , Weihao Gan , Lin Liu , Wei Wu

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…

密码学与安全 · 计算机科学 2023-11-15 Aldin Vehabovic , Hadi Zanddizari , Nasir Ghani , G. Javidi , S. Uluagac , M. Rahouti , E. Bou-Harb , M. Safaei Pour

The current pandemic situation has increased cyber-attacks drastically worldwide. The attackers are using malware like trojans, spyware, rootkits, worms, ransomware heavily. Ransomware is the most notorious malware, yet we did not have any…

密码学与安全 · 计算机科学 2022-06-07 Nanda Rani , Sunita Vikrant Dhavale

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,…

密码学与安全 · 计算机科学 2022-04-01 Avinash Singh , Richard Adeyemi Ikuesan , Hein Venter

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…

密码学与安全 · 计算机科学 2022-11-15 Rawshan Ara Mowri , Madhuri Siddula , Kaushik Roy

Hierarchical reinforcement learning deals with the problem of breaking down large tasks into meaningful sub-tasks. Autonomous discovery of these sub-tasks has remained a challenging problem. We propose a novel method of learning sub-tasks…

机器学习 · 计算机科学 2019-02-19 Saket Tiwari , M. Prannoy

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…