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An Explainable AI-based Intrusion Detection System for DNS over HTTPS (DoH) Attacks

Tahmina, Zebin, Rezvy, Shahadate ORCID: https://orcid.org/0000-0002-2684-7117 and Yuan, Luo (2022) An Explainable AI-based Intrusion Detection System for DNS over HTTPS (DoH) Attacks. Techrxiv. (Unpublished)

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Abstract

Over the past few years, Domain Name Service (DNS) remained a prime target for hackers as it enables them to gain first entry into networks and gain access to data for exfiltration. Although the DNS over HTTPS (DoH) protocol has desirable properties for internet users such as privacy and security, it also causes a problem in that network administrators are prevented from detecting suspicious network traffic generated by malware and malicious tools. To support their efforts in maintaining a secure network, in this paper, we have implemented an explainable AI solution using a novel machine learning framework. We have used the publicly available CIRA-CIC-DoHBrw-2020 dataset for developing an accurate solution to detect and classify the DNS over HTTPS attacks. Our proposed balanced and stacked Random Forest achieved very high precision (99.91\%), recall (99.92\%) and F1 score (99.91\%) for the classification task at hand. Using explainable AI methods, we have additionally highlighted the underlying feature contributions in an attempt to provide transparent and explainable results from the model.

Item Type: Article
Status: Unpublished
Subjects: Q Science > Q Science (General)
Q Science > Q Science (General) > Q325 Machine learning
School/Department: London Campus
URI: http://ray.yorksj.ac.uk/id/eprint/5892

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