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<p>The intensity of cyberattacks on automated process control systems remains high. The attacks can target programmable logic controllers, which are the critical elements of control systems. This article develops a&#xa0;DoS attack model based on the topological transformation of stochastic networks. The stochastic network is based on the actions of an attacker organizing a&#xa0;DoS attack on the network, in the form of a&#xa0;sequence of initiated processes. The article describes the dependencies of the attacker’s processes and the probabilistic transitions between them. The output data are in the form of the average duration of a&#xa0;successful DoS attack and the dependence of the probability of a&#xa0;successful DoS attack on its duration. Several experiments were conducted on a&#xa0;test bench showing that the actual duration of a&#xa0;successful DoS attack corresponds to the calculated one. The model is simple and universal, since it does not require information on the features of a&#xa0;DoS attack.</p>

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A model of a DoS attack on programmable logic controllers based on the topological transformation of stochastic network

  • 期刊论文

  • 发表日期：

    2026年4月13日

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  • Alexandr Boger,
  • Alexander Sokolov,
  • Alexey Ruchay

摘要

The intensity of cyberattacks on automated process control systems remains high. The attacks can target programmable logic controllers, which are the critical elements of control systems. This article develops a DoS attack model based on the topological transformation of stochastic networks. The stochastic network is based on the actions of an attacker organizing a DoS attack on the network, in the form of a sequence of initiated processes. The article describes the dependencies of the attacker’s processes and the probabilistic transitions between them. The output data are in the form of the average duration of a successful DoS attack and the dependence of the probability of a successful DoS attack on its duration. Several experiments were conducted on a test bench showing that the actual duration of a successful DoS attack corresponds to the calculated one. The model is simple and universal, since it does not require information on the features of a DoS attack.