activity
20222026
most citedMachine Learning for Encrypted Malicious Traffic Detection: Approaches, Datasets and Comparative Study

158 citations · 163 across the 10 of their papers we have counts for

collaborators

11 papers

cs.CR2026

SAGEGAN: Style-Based Anomaly Detection with Gaussian Embeddings using Generative Adversarial Networks

Thesath Wijayasiri, Kar Wai Fok, Vrizlynn L. L. Thing

Malware evolves faster than rule-based and signature-driven detection pipelines. This paper presents SAGEGAN, a benign-only trained malware anomaly detection framework that convert…

cs.CR2026

HilEnT: Hilbert, Entropy Transformed Image Based Malware Detection

Rahul Kale, Thesath Wijayasiri, Kar Wai Fok +1

With the increasing threat of malware across various software related domains, malware detection and classification is critical to determine the response actions. Different strateg…

cs.CR2026

TIER: Trajectory-Invariant Explanation Regularization for Membership Privacy

Varun Sharma, Kar Wai Fok, Vrizlynn L. L. Thing

Explainability is central to building trustworthy AI, yet explanation interfaces can inadvertently provide adversaries with an expanded privacy-related attack surfaces. Recent stud…

cs.CR2026

DE-FIVE: Detecting Malicious Image Prompts via Fourier Features and Image Vector Embeddings

Xingwei Zhong, Varun Sharma, Kar Wai Fok +1

Vision language models (VLMs) employ both visual and textual modalities to enable advanced vision-language inference. However, incorporating visual modalities expands the attack su…

cs.CR2025

Enhanced MLLM Black-Box Jailbreaking Attacks and Defenses

Xingwei Zhong, Kar Wai Fok, Vrizlynn L. L. Thing

Multimodal large language models (MLLMs) comprise of both visual and textual modalities to process vision language tasks. However, MLLMs are vulnerable to security-related issues,…

cs.CR2025

ExpIDS: A Drift-adaptable Network Intrusion Detection System With Improved Explainability

Ayush Kumar, Kar Wai Fok, Vrizlynn L. L. Thing

Despite all the advantages associated with Network Intrusion Detection Systems (NIDSs) that utilize machine learning (ML) models, there is a significant reluctance among cyber secu…

cs.CR2025

Enhanced Consistency Bi-directional GAN (CBiGAN) for Malware Anomaly Detection

Thesath Wijayasiri, Kar Wai Fok, Vrizlynn L. L. Thing

Static malware analysis remains a core technique in cybersecurity due to its ability to assess potentially malicious software without execution. Nevertheless, many existing static…

cs.CR2024★ 4 cited

Enhancing Network Intrusion Detection Performance using Generative Adversarial Networks

Xinxing Zhao, Kar Wai Fok, Vrizlynn L. L. Thing

Network intrusion detection systems (NIDS) play a pivotal role in safeguarding critical digital infrastructures against cyber threats. Machine learning-based detection models appli…

cs.CR2024

Privacy preserving layer partitioning for Deep Neural Network models

Kishore Rajasekar, Randolph Loh, Kar Wai Fok +1

MLaaS (Machine Learning as a Service) has become popular in the cloud computing domain, allowing users to leverage cloud resources for running private inference of ML models on the…

cs.CR2024★ 1 cited

Exploring Emerging Trends in 5G Malicious Traffic Analysis and Incremental Learning Intrusion Detection Strategies

Zihao Wang, Kar Wai Fok, Vrizlynn L. L. Thing

The popularity of 5G networks poses a huge challenge for malicious traffic detection technology. The reason for this is that as the use of 5G technology increases, so does the risk…

cs.CR2022★ 158 cited

Machine Learning for Encrypted Malicious Traffic Detection: Approaches, Datasets and Comparative Study

Zihao Wang, Kar-Wai Fok, Vrizlynn L. L. Thing

As people's demand for personal privacy and data security becomes a priority, encrypted traffic has become mainstream in the cyber world. However, traffic encryption is also shield…