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arXiv 2011.07793cs.CR
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MAAC:一种检测多步攻击的告警关联方法

MAAC: Novel Alert Correlation Method To Detect Multi-step Attack

Xiaoyu Wang, Xiaorui Gong, Lei Yu, Jian Liu

摘要:

随着攻击方法的不断改进,出现了越来越多的分布式、复杂的、有针对性的攻击,攻击者采用组合攻击方法来达到攻击目的。高级网络攻击包括多个阶段,以实现最终目标。传统的入侵检测系统,如端点安全管理工具、防火墙和其他监控工具,在攻击过程中会生成大量警报。这些警报包括攻击线索,以及许多与攻击无关的误报。安全分析师需要分析大量的警报,从中找到有用的线索,并重构攻击场景。然而,大多数传统的安全监控工具无法将来自不同来源的警报关联起来,因此许多多步骤攻击仍然完全没有被注意到,需要安全分析师进行手动分析,就像大海捞针一样。我们提出了MAAC,一个多步攻击警报关联系统,它减少了重复警报,并结合基于警报语义和攻击阶段的多步攻击路径。对真实数据集的评估结果表明,MAAC能够有效地减少90%的警报,并从大量警报中发现攻击路径.

英文摘要:

With the continuous improvement of attack methods, there are more and more distributed, complex, targeted attacks in which the attackers use combined attack methods to achieve the purpose. Advanced cyber attacks include multiple stages to achieve the ultimate goal. Traditional intrusion detection systems such as endpoint security management tools, firewalls, and other monitoring tools generate a large number of alerts during the attack. These alerts include attack clues, as well as many false positives unrelated to attacks. Security analysts need to analyze a large number of alerts and find useful clues from them and reconstruct attack scenarios. However, most traditional security monitoring tools cannot correlate alerts from different sources, so many multi-step attacks are still completely unnoticed, requiring manual analysis by security analysts like finding a needle in a haystack. We propose MAAC, a multi-step attack alert correlation system, which reduces repeated alerts and combines multi-step attack paths based on alert semantics and attack stages. The evaluation results of the real-world datasets show that MAAC can effectively reduce the alerts by 90\% and find attack paths from a large number of alerts.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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