arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.01543cs.CRcs.DC
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工业控制系统中自动威胁搜索的设计与开发

Design and Development of Automated Threat Hunting in Industrial Control Systems

Masumi Arafune, Sidharth Rajalakshmi, Luigi Jaldon, Zahra Jadidi, Shantanu Pal, Ernest Foo, Nagarajan Venkatachalam

摘要:

传统的工业系统,例如,发电厂、水处理厂等,都是为了运行高度隔离和控制的能力而建造的。最近,工业控制系统(ICS)已经暴露在互联网上,以便于访问和适应先进技术。但是,它会造成安全漏洞。攻击者经常利用这些漏洞对ICS发起攻击。为此,执行威胁搜索以主动监控ICS网络的安全性,并保护它们免受可能导致系统故障的威胁。威胁猎人手动识别威胁,并根据可用的威胁情报提供假设。在本文中,我们激励的差距,缺乏研究的自动化威胁狩猎在ICS网络。我们提出了一个自动提取的威胁情报和假设的生成和验证。我们提出了一个自动化的威胁狩猎框架的基础上提供的ICS MITRE ATT&CK框架自动化的任务的威胁情报。与现有的基于云、成本高昂且容易出现人为错误的狩猎解决方案不同,我们的解决方案是使用不同的开源技术实现的中央和开源解决方案,例如,Elasticsearch、Conpot、Metasploit、Web单页应用程序(SPA)和机器学习分析器。我们的研究结果表明,所提出的威胁狩猎解决方案可以识别网络的攻击和警报的威胁猎人与基于ICS MITRE ATT&CK的技术,战术和程序(TTP)生成的假设。然后,机器学习分类器自动预测攻击的未来动作。

英文摘要:

Traditional industrial systems, e.g., power plants, water treatment plants, etc., were built to operate highly isolated and controlled capacity. Recently, Industrial Control Systems (ICSs) have been exposed to the Internet for ease of access and adaptation to advanced technologies. However, it creates security vulnerabilities. Attackers often exploit these vulnerabilities to launch an attack on ICSs. Towards this, threat hunting is performed to proactively monitor the security of ICS networks and protect them against threats that could make the systems malfunction. A threat hunter manually identifies threats and provides a hypothesis based on the available threat intelligence. In this paper, we motivate the gap in lacking research in the automation of threat hunting in ICS networks. We propose an automated extraction of threat intelligence and the generation and validation of a hypothesis. We present an automated threat hunting framework based on threat intelligence provided by the ICS MITRE ATT&CK framework to automate the tasks. Unlike the existing hunting solutions which are cloud-based, costly and prone to human errors, our solution is a central and open-source implemented using different open-source technologies, e.g., Elasticsearch, Conpot, Metasploit, Web Single Page Application (SPA), and a machine learning analyser. Our results demonstrate that the proposed threat hunting solution can identify the network's attacks and alert a threat hunter with a hypothesis generated based on the techniques, tactics, and procedures (TTPs) from ICS MITRE ATT&CK. Then, a machine learning classifier automatically predicts the future actions of the attack.

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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