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arXiv 2302.07982cs.CR
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基于相关性感知神经网络的IoT系统中DDoS攻击检测

Correlation-Aware Neural Networks for DDoS Attack Detection In IoT Systems

Arvin Hekmati, Nishant Jethwa, Eugenio Grippo, Bhaskar Krishnamachari

摘要:

我们提出了一个全面的研究应用机器学习检测分布式拒绝服务(DDoS)攻击使用大规模的物联网(IoT)系统。虽然先前的工作和现有的DDoS攻击主要集中在单个节点以高容量传输数据包,但我们研究了使用大量物联网设备的更复杂的未来攻击,并通过让每个节点以典型的良性流量传输来伪装它们的攻击。我们引入了新的相关性感知架构,考虑到物联网节点之间流量的相关性,我们还比较了集中式和分布式检测模型的有效性。我们通过评估五种不同的神经网络模型来广泛分析所提出的架构,这些模型是在来自4060个节点的真实物联网系统的数据集上训练的。我们观察到,长短期记忆(LSTM)和基于transformer的模型,结合使用物联网节点相关信息的架构,提供了比其他模型和架构更高的性能(在F1得分和二进制精度方面),特别是当攻击者通过遵循每个传输节点上的良性流量分布来隐藏自己时。例如,通过使用LSTM模型,分布式相关性感知架构为使用良性流量进行攻击的攻击者提供了81%的F1分数,而不使用相关性信息的架构则为35%。我们还研究了选择一个子集的节点,以共享其数据的相关性感知架构,以满足资源约束的性能的算法。

英文摘要:

We present a comprehensive study on applying machine learning to detect distributed Denial of service (DDoS) attacks using large-scale Internet of Things (IoT) systems. While prior works and existing DDoS attacks have largely focused on individual nodes transmitting packets at a high volume, we investigate more sophisticated futuristic attacks that use large numbers of IoT devices and camouflage their attack by having each node transmit at a volume typical of benign traffic. We introduce new correlation-aware architectures that take into account the correlation of traffic across IoT nodes, and we also compare the effectiveness of centralized and distributed detection models. We extensively analyze the proposed architectures by evaluating five different neural network models trained on a dataset derived from a 4060-node real-world IoT system. We observe that long short-term memory (LSTM) and a transformer-based model, in conjunction with the architectures that use correlation information of the IoT nodes, provide higher performance (in terms of F1 score and binary accuracy) than the other models and architectures, especially when the attacker camouflages itself by following benign traffic distribution on each transmitting node. For instance, by using the LSTM model, the distributed correlation-aware architecture gives 81% F1 score for the attacker that camouflages their attack with benign traffic as compared to 35% for the architecture that does not use correlation information. We also investigate the performance of heuristics for selecting a subset of nodes to share their data for correlation-aware architectures to meet resource constraints.

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