Backdoor Attack against One-Class Sequential Anomaly Detection Models

• URL: http://arxiv.org/abs/2402.10283v1
• Date: Thu, 15 Feb 2024 19:19:54 GMT
• Title: Backdoor Attack against One-Class Sequential Anomaly Detection Models
• Authors: He Cheng and Shuhan Yuan
• Abstract summary: We explore compromising deep sequential anomaly detection models by proposing a novel backdoor attack strategy. The attack approach comprises two primary steps, trigger generation and backdoor injection. Experiments demonstrate the effectiveness of our proposed attack strategy by injecting backdoors on two well-established one-class anomaly detection models.
• Score: 10.020488631167204
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Deep anomaly detection on sequential data has garnered significant attention due to the wide application scenarios. However, deep learning-based models face a critical security threat - their vulnerability to backdoor attacks. In this paper, we explore compromising deep sequential anomaly detection models by proposing a novel backdoor attack strategy. The attack approach comprises two primary steps, trigger generation and backdoor injection. Trigger generation is to derive imperceptible triggers by crafting perturbed samples from the benign normal data, of which the perturbed samples are still normal. The backdoor injection is to properly inject the backdoor triggers to comprise the model only for the samples with triggers. The experimental results demonstrate the effectiveness of our proposed attack strategy by injecting backdoors on two well-established one-class anomaly detection models.

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