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arXiv 2409.05045cs.CR
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使用大语言模型从安全事件日志中检测模板

Using Large Language Models for Template Detection from Security Event Logs

Risto Vaarandi, Hayretdin Bahsi

AI总结:

本文研究利用大语言模型从非结构化安全事件日志中无监督检测模板,以弥补现有方法多依赖传统数据挖掘或有监督LLM的不足。

摘要:

在现代IT系统和计算机网络中,实时与离线事件日志分析是网络安全监控的重要组成部分。尤其是事件日志分析技术对于及时发现网络攻击以及协助安全专家分析过往安全事件至关重要。从非结构化文本事件日志中检测行模式或模板已被视为事件日志分析的一项重要任务,因为检测出的模板代表了事件日志中的事件类型,并为下游的在线或离线安全监控任务准备日志。在过去二十年中,人们提出了多种模板挖掘算法。然而,许多已有算法依赖传统数据挖掘技术,而大语言模型(LLMs)的使用迄今受到的关注较少。此外,大多数利用LLMs的方法都是有监督的,基于LLM的无监督模板挖掘仍是一个研究不足的领域。本文针对这一研究空白,研究了LLMs在从非结构化安全事件日志中无监督检测模板方面的应用。

英文摘要:

In modern IT systems and computer networks, real-time and offline event log analysis is a crucial part of cyber security monitoring. In particular, event log analysis techniques are essential for the timely detection of cyber attacks and for assisting security experts with the analysis of past security incidents. The detection of line patterns or templates from unstructured textual event logs has been identified as an important task of event log analysis since detected templates represent event types in the event log and prepare the logs for downstream online or offline security monitoring tasks. During the last two decades, a number of template mining algorithms have been proposed. However, many proposed algorithms rely on traditional data mining techniques, and the usage of Large Language Models (LLMs) has received less attention so far. Also, most approaches that harness LLMs are supervised, and unsupervised LLM-based template mining remains an understudied area. The current paper addresses this research gap and investigates the application of LLMs for unsupervised detection of templates from unstructured security event logs.

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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