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Abnormal Traffic Detection Mechanism for Protecting IIoT Environments

机译:保护IIoT环境的异常流量检测机制

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In the last few decades, control systems have been upgraded from the standard serial bus systems to modern TCP/IP based systems. The Modbus protocol is one of the most widely used protocols in control systems. However, it provides no inherent security mechanisms. Therefore, the Modbus protocol is susceptible to the type of attack that injects false Modbus commands. For that reason, we propose an abnormal traffic detection mechanism by tracing Modbus/TCP transactions. The proposed method enables immediate and fast response to not only Denial-of-Service (DoS) attacks, which can be induced by a repetition of false Modbus commands, but also various types of accidents, which can be occurred inadvertently from things such as routing loops, misconfigured devices and human mistakes.
机译:在过去的几十年中,控制系统已从标准的串行总线系统升级为基于TCP / IP的现代系统。 Modbus协议是控制系统中使用最广泛的协议之一。但是,它没有提供固有的安全性机制。因此,Modbus协议容易受到注入错误的Modbus命令的攻击类型的影响。因此,我们通过跟踪Modbus / TCP事务提出了一种异常的流量检测机制。所提出的方法不仅可以立即对拒绝服务(DoS)攻击做出迅速而迅速的响应,而拒绝服务是由重复的错误Modbus命令引起的,而且还可以响应各种意外事件,这些意外事件可能是由于诸如路由之类的疏忽而发生的。回路,配置错误的设备以及人为错误。

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