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Advanced Persistent Threats (APTs) pose a major cybersecurity challenge due to their stealth and ability to mimic normal system behavior, making detection particularly difficult in highly imbalanced datasets. Traditional anomaly detection…

密码学与安全 · 计算机科学 2025-02-14 Sidahmed Benabderrahmane , Petko Valtchev , James Cheney , Talal Rahwan

This paper introduces eX-NIDS, a framework designed to enhance interpretability in flow-based Network Intrusion Detection Systems (NIDS) by leveraging Large Language Models (LLMs). In our proposed framework, flows labelled as malicious by…

密码学与安全 · 计算机科学 2025-11-12 Paul R. B. Houssel , Siamak Layeghy , Priyanka Singh , Marius Portmann

Recent advancements in Intrusion Detection Systems (IDS), integrating Explainable AI (XAI) methodologies, have led to notable improvements in system performance via precise feature selection. However, a thorough understanding of…

密码学与安全 · 计算机科学 2024-11-06 Hao-Ting Pai , Yu-Hsuan Kang , Wen-Cheng Chung

Through continuous observation and modeling of normal behavior in networks, Anomaly-based Network Intrusion Detection System (A-NIDS) offers a way to find possible threats via deviation from the normal model. The analysis of network traffic…

网络与互联网体系结构 · 计算机科学 2019-06-13 Nguyen Thanh Van , Tran Ngoc Thinh , Le Thanh Sach

Anomalies or failures in large computer systems, such as the cloud, have an impact on a large number of users that communicate, compute, and store information. Therefore, timely and accurate anomaly detection is necessary for reliability,…

人工智能 · 计算机科学 2021-02-24 Harold Ott , Jasmin Bogatinovski , Alexander Acker , Sasho Nedelkoski , Odej Kao

This paper investigates Graph Neural Networks (GNNs) application for self-supervised network intrusion and anomaly detection. GNNs are a deep learning approach for graph-based data that incorporate graph structures into learning to…

机器学习 · 计算机科学 2023-02-10 Evan Caville , Wai Weng Lo , Siamak Layeghy , Marius Portmann

Anomaly-based network intrusion detection systems (A-NIDS) use unsupervised models to detect unforeseen attacks. However, existing A-NIDS solutions suffer from low throughput, lack of interpretability, and high maintenance costs. Recent…

密码学与安全 · 计算机科学 2024-04-01 Ruoyu Li , Qing Li , Yu Zhang , Dan Zhao , Xi Xiao , Yong Jiang

Machine learning (ML) is crucial in network anomaly detection for proactive threat hunting, reducing detection and response times significantly. However, challenges in model training, maintenance, and frequent false positives impact its…

密码学与安全 · 计算机科学 2023-09-29 Tarek Ali , Panos Kostakos

New Attacks are increasingly used by attackers everyday but many of them are not detected by Intrusion Detection Systems as most IDS ignore raw packet information and only care about some basic statistical information extracted from PCAP…

密码学与安全 · 计算机科学 2023-04-04 Khloud Al Jallad

Deep neural networks tend to make overconfident predictions and often require additional detectors for misclassifications, particularly for safety-critical applications. Existing detection methods usually only focus on adversarial attacks…

机器学习 · 计算机科学 2023-07-07 Julia Lust , Alexandru P. Condurache

Data Security has become a very serious part of any organizational information system. Internet threats have become more intelligent so it can deceive the basic security solutions such as firewalls and antivirus scanners. To enhance the…

网络与互联网体系结构 · 计算机科学 2013-08-14 Mohamed Faisal Elrawy , T. K. Abdelhamid , A. M. Mohamed

Intrusion detection system (IDS) is an important part of enterprise security system architecture. In particular, anomaly-based IDS has been widely applied to detect abnormal process behaviors that deviate from the majority. However, such…

密码学与安全 · 计算机科学 2016-08-10 Boxiang Dong , Zhengzhang Chen , Hui Wang , Lu-An Tang , Kai Zhang , Ying Lin , Haifeng Chen , Guofei Jiang

Pre-trained Vision-Language Models (VLMs) have recently shown promise in detecting anomalies. However, previous approaches are fundamentally limited by their reliance on human-designed prompts and the lack of accessible anomaly samples,…

计算机视觉与模式识别 · 计算机科学 2025-08-25 Pi-Wei Chen , Jerry Chun-Wei Lin , Wei-Han Chen , Jia Ji , Zih-Ching Chen , Feng-Hao Yeh , Chao-Chun Chen

Detecting unusual patterns in graph data is a crucial task in data mining. However, existing methods face challenges in consistently achieving satisfactory performance and often lack interpretability, which hinders our understanding of…

机器学习 · 计算机科学 2024-06-28 Yifei Yang , Peng Wang , Xiaofan He , Dongmian Zou

Graph Neural Networks (GNNs) show great promise for Network Intrusion Detection Systems (NIDS), particularly in IoT environments, but suffer performance degradation due to distribution drift and lack robustness against realistic adversarial…

密码学与安全 · 计算机科学 2025-06-27 Zhonghao Zhan , Huichi Zhou , Hamed Haddadi

Large language models (LLMs), especially generative pre-trained transformers (GPTs), have recently demonstrated outstanding ability in information comprehension and problem-solving. This has motivated many studies in applying LLMs to…

机器学习 · 计算机科学 2024-05-21 Han Zhang , Akram Bin Sediq , Ali Afana , Melike Erol-Kantarci

The boundaries of cyber-physical systems (CPS) and the Internet of Things (IoT) are converging together day by day to introduce a common platform on hybrid systems. Moreover, the combination of artificial intelligence (AI) with CPS creates…

密码学与安全 · 计算机科学 2020-06-02 Md Hasan Shahriar , Nur Imtiazul Haque , Mohammad Ashiqur Rahman , Miguel Alonso

As the digital landscape becomes more interconnected, the frequency and severity of zero-day attacks, have significantly increased, leading to an urgent need for innovative Intrusion Detection Systems (IDS). Machine Learning-based IDS that…

密码学与安全 · 计算机科学 2025-05-15 Ippokratis Koukoulis , Ilias Syrigos , Thanasis Korakis

In modern highly interconnected power grids, automatic generation control (AGC) is crucial in maintaining the stability of the power grid. The dependence of the AGC system on the information and communications technology (ICT) system makes…

机器学习 · 计算机科学 2022-09-20 Tohid Behdadnia , Geert Deconinck

This paper presents a new Network Intrusion Detection System (NIDS) based on Graph Neural Networks (GNNs). GNNs are a relatively new sub-field of deep neural networks, which can leverage the inherent structure of graph-based data. Training…

网络与互联网体系结构 · 计算机科学 2023-05-12 Wai Weng Lo , Siamak Layeghy , Mohanad Sarhan , Marcus Gallagher , Marius Portmann