A Simple Framework to Enhance the Adversarial Robustness of Deep Learning-based Intrusion Detection System

• URL: http://arxiv.org/abs/2312.03245v1
• Date: Wed, 6 Dec 2023 02:33:12 GMT
• Title: A Simple Framework to Enhance the Adversarial Robustness of Deep Learning-based Intrusion Detection System
• Abstract summary: We propose a novel IDS architecture that can enhance the robustness of IDS against adversarial attacks. The proposed-IDS consists of three components: DL-based IDS, adversarial example detector, and ML-based IDS. In our experiments, we observe a significant improvement in the prediction performance of the IDS when subjected to adversarial attack.
• Score: 5.189166936995511
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Deep learning based intrusion detection systems (DL-based IDS) have emerged as one of the best choices for providing security solutions against various network intrusion attacks. However, due to the emergence and development of adversarial deep learning technologies, it becomes challenging for the adoption of DL models into IDS. In this paper, we propose a novel IDS architecture that can enhance the robustness of IDS against adversarial attacks by combining conventional machine learning (ML) models and Deep Learning models. The proposed DLL-IDS consists of three components: DL-based IDS, adversarial example (AE) detector, and ML-based IDS. We first develop a novel AE detector based on the local intrinsic dimensionality (LID). Then, we exploit the low attack transferability between DL models and ML models to find a robust ML model that can assist us in determining the maliciousness of AEs. If the input traffic is detected as an AE, the ML-based IDS will predict the maliciousness of input traffic, otherwise the DL-based IDS will work for the prediction. The fusion mechanism can leverage the high prediction accuracy of DL models and low attack transferability between DL models and ML models to improve the robustness of the whole system. In our experiments, we observe a significant improvement in the prediction performance of the IDS when subjected to adversarial attack, achieving high accuracy with low resource consumption.

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