Poster: Enhancing GNN Robustness for Network Intrusion Detection via Agent-based Analysis

Fuente: arXiv
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Main Authors: Zhan, Zhonghao, Zhou, Huichi, Haddadi, Hamed
Format: Preprint
Published: 2025
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author Zhan, Zhonghao
Zhou, Huichi
Haddadi, Hamed
author_facet Zhan, Zhonghao
Zhou, Huichi
Haddadi, Hamed
contents Graph Neural Networks (GNNs) show great promise for Network Intrusion Detection Systems (NIDS), particularly in IoT environments, but suffer performance degradation due to distribution drift and lack robustness against realistic adversarial attacks. Current robustness evaluations often rely on unrealistic synthetic perturbations and lack demonstrations on systematic analysis of different kinds of adversarial attack, which encompass both black-box and white-box scenarios. This work proposes a novel approach to enhance GNN robustness and generalization by employing Large Language Models (LLMs) in an agentic pipeline as simulated cybersecurity expert agents. These agents scrutinize graph structures derived from network flow data, identifying and potentially mitigating suspicious or adversarially perturbed elements before GNN processing. Our experiments, using a framework designed for realistic evaluation and testing with a variety of adversarial attacks including a dataset collected from physical testbed experiments, demonstrate that integrating LLM analysis can significantly improve the resilience of GNN-based NIDS against challenges, showcasing the potential of LLM agent as a complementary layer in intrusion detection architectures.
format Preprint
id arxiv_https___arxiv_org_abs_2506_20806
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Poster: Enhancing GNN Robustness for Network Intrusion Detection via Agent-based Analysis
Zhan, Zhonghao
Zhou, Huichi
Haddadi, Hamed
Cryptography and Security
Artificial Intelligence
Graph Neural Networks (GNNs) show great promise for Network Intrusion Detection Systems (NIDS), particularly in IoT environments, but suffer performance degradation due to distribution drift and lack robustness against realistic adversarial attacks. Current robustness evaluations often rely on unrealistic synthetic perturbations and lack demonstrations on systematic analysis of different kinds of adversarial attack, which encompass both black-box and white-box scenarios. This work proposes a novel approach to enhance GNN robustness and generalization by employing Large Language Models (LLMs) in an agentic pipeline as simulated cybersecurity expert agents. These agents scrutinize graph structures derived from network flow data, identifying and potentially mitigating suspicious or adversarially perturbed elements before GNN processing. Our experiments, using a framework designed for realistic evaluation and testing with a variety of adversarial attacks including a dataset collected from physical testbed experiments, demonstrate that integrating LLM analysis can significantly improve the resilience of GNN-based NIDS against challenges, showcasing the potential of LLM agent as a complementary layer in intrusion detection architectures.
title Poster: Enhancing GNN Robustness for Network Intrusion Detection via Agent-based Analysis
topic Cryptography and Security
Artificial Intelligence
url https://arxiv.org/abs/2506.20806