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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

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

Crypto-ransomware is characterized by its irreversible effect even after the detection and removal. As such, the early detection is crucial to protect user data and files of being held to ransom. Several solutions have proposed utilizing…

Cryptography and Security · Computer Science 2020-12-01 Bander Ali Saleh Al-rimy , Mohd Aizaini Maarof , Syed Zainudeen Mohd Shaid

Detecting encryption-driven cyber threats remains a large challenge due to the evolving techniques employed to evade traditional detection mechanisms. An entropy-based computational framework was introduced to analyze multi-domain system…

Cryptography and Security · Computer Science 2025-03-27 Michael Mannon , Evan Statham , Quentin Featherstone , Sebastian Arkwright , Clive Fenwick , Gareth Willoughby

Network Intrusion Detection Systems (NIDS) have been extensively investigated by monitoring real network traffic and analyzing suspicious activities. However, there are limitations in detecting specific types of attacks with NIDS, such as…

Cryptography and Security · Computer Science 2023-06-19 Zhiyan Chen , Murat Simsek , Burak Kantarci , Mehran Bagheri , Petar Djukic

A survey of machine learning techniques trained to detect ransomware is presented. This work builds upon the efforts of Taylor et al. in using sensor-based methods that utilize data collected from built-in instruments like CPU power and…

Machine Learning · Computer Science 2021-10-18 Erik Larsen , David Noever , Korey MacVittie

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

Computing is still under a significant threat from ransomware, which necessitates prompt action to prevent it. Ransomware attacks can have a negative impact on how smart grids, particularly digital substations. In addition to examining a…

Cryptography and Security · Computer Science 2024-05-02 Hong-Nhung Nguyen , Ha-Thanh Nguyen , Damien Lescos

In this work, we propose a two-phased approach for real-time detection and deterrence of ransomware. To achieve this, we leverage the capabilities of eBPF (Extended Berkeley Packet Filter) and artificial intelligence to develop both…

Cryptography and Security · Computer Science 2024-06-21 Arjun Sekar , Sameer G. Kulkarni , Joy Kuri

Since modern anti-virus software mainly depends on a signature-based static analysis, they are not suitable for coping with the rapid increase in malware variants. Moreover, even worse, many vulnerabilities of operating systems enable…

Cryptography and Security · Computer Science 2022-11-28 Manabu Hirano , Ryotaro Kobayashi

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

Network Intrusion Detection System (NIDS) is an essential tool in securing cyberspace from a variety of security risks and unknown cyberattacks. A number of solutions have been implemented for Machine Learning (ML), and Deep Learning (DL)…

Cryptography and Security · Computer Science 2023-08-02 Khushnaseeb Roshan , Aasim Zafar , Shiekh Burhan Ul Haque

The increasing sophistication of encryption-based ransomware has demanded innovative approaches to detection and mitigation, prompting the development of a hierarchical framework grounded in probabilistic cryptographic analysis. By focusing…

Cryptography and Security · Computer Science 2025-08-11 Kevin Pekepok , Persephone Kirkwood , Esme Christopolous , Florence Braithwaite , Oliver Nightingale

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

Intrusion Detection System or IDS is a software or hardware tool that repeatedly scans and monitors events that took place in a computer or a network. A set of rules are used by Signature based Network Intrusion Detection Systems or NIDS to…

Cryptography and Security · Computer Science 2014-11-26 Laxmi Lahoti , Chaitali Chandankhede , Debajyoti Mukhopadhyay

In the presence of security countermeasures, a malware designed for data exfiltration must do so using a covert channel to achieve its goal. Among existing covert channels stands the domain name system (DNS) protocol. Although the detection…

Cryptography and Security · Computer Science 2018-06-19 Asaf Nadler , Avi Aminov , Asaf Shabtai

Modern threat landscapes continue to evolve with increasing sophistication, challenging traditional detection methodologies and necessitating innovative solutions capable of addressing complex adversarial tactics. A novel framework was…

Cryptography and Security · Computer Science 2025-03-27 Levi Gareth , Maximilian Fairbrother , Peregrine Blackwood , Lucasta Underhill , Benedict Ruthermore

Network-based intrusion detection system (NIDS) monitors network traffic for malicious activities, forming the frontline defense against increasing attacks over information infrastructures. Although promising, our quantitative analysis…

Cryptography and Security · Computer Science 2025-05-08 Chenyang Qiu , Yingsheng Geng , Junrui Lu , Kaida Chen , Shitong Zhu , Ya Su , Guoshun Nan , Can Zhang , Junsong Fu , Qimei Cui , Xiaofeng Tao

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

In the growing world of the internet, the number of ways to obtain crucial data such as passwords and login credentials, as well as sensitive personal information has expanded. Page impersonation, often known as phishing, is one method of…

Cryptography and Security · Computer Science 2022-09-07 Aman Rangapur , Tarun Kanakam , Dhanvanthini P
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