Web Fraud Attacks Against LLM-Driven Multi-Agent Systems

Fuente: arXiv
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Autori principali: Kong, Dezhang, Peng, Hujin, Zhang, Yilun, Zhao, Lele, Xu, Zhenhua, Lin, Shi, Lin, Changting, Han, Meng
Natura: Preprint
Pubblicazione: 2025
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author Kong, Dezhang
Peng, Hujin
Zhang, Yilun
Zhao, Lele
Xu, Zhenhua
Lin, Shi
Lin, Changting
Han, Meng
author_facet Kong, Dezhang
Peng, Hujin
Zhang, Yilun
Zhao, Lele
Xu, Zhenhua
Lin, Shi
Lin, Changting
Han, Meng
contents With the proliferation of LLM-driven multi-agent systems (MAS), the security of Web links has become a critical concern. Once MAS is induced to trust a malicious link, attackers can use it as a springboard to expand the attack surface. In this paper, we propose Web Fraud Attacks, a novel type of attack manipulating unique structures of web links to deceive MAS. We design 12 representative attack variants that encompass various methods, such as homoglyph deception, sub-directory nesting, and parameter obfuscation. Through extensive experiments on these attack vectors, we demonstrate that Web fraud attacks not only exhibit significant destructive potential across different MAS architectures but also possess a distinct advantage in evasion: they circumvent the need for complex input design, lowering the threshold for attacks significantly. These results underscore the importance of addressing Web fraud attacks, providing new insights into MAS safety. Our code is available at https://github.com/JiangYingEr/Web-Fraud-Attack-in-MAS.
format Preprint
id arxiv_https___arxiv_org_abs_2509_01211
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Web Fraud Attacks Against LLM-Driven Multi-Agent Systems
Kong, Dezhang
Peng, Hujin
Zhang, Yilun
Zhao, Lele
Xu, Zhenhua
Lin, Shi
Lin, Changting
Han, Meng
Cryptography and Security
Artificial Intelligence
Multiagent Systems
With the proliferation of LLM-driven multi-agent systems (MAS), the security of Web links has become a critical concern. Once MAS is induced to trust a malicious link, attackers can use it as a springboard to expand the attack surface. In this paper, we propose Web Fraud Attacks, a novel type of attack manipulating unique structures of web links to deceive MAS. We design 12 representative attack variants that encompass various methods, such as homoglyph deception, sub-directory nesting, and parameter obfuscation. Through extensive experiments on these attack vectors, we demonstrate that Web fraud attacks not only exhibit significant destructive potential across different MAS architectures but also possess a distinct advantage in evasion: they circumvent the need for complex input design, lowering the threshold for attacks significantly. These results underscore the importance of addressing Web fraud attacks, providing new insights into MAS safety. Our code is available at https://github.com/JiangYingEr/Web-Fraud-Attack-in-MAS.
title Web Fraud Attacks Against LLM-Driven Multi-Agent Systems
topic Cryptography and Security
Artificial Intelligence
Multiagent Systems
url https://arxiv.org/abs/2509.01211