Affiliations: [a] Department of Computer Science Engineering, Sri Ramakrishna Engineering College, Coimbatore, India
| [b] Department of Computer Science Engineering, Kumaraguru College of Technology, Coimbatore, India
Correspondence:
[*]
Corresponding author. M. Karthigha, Department of Computer Science Engineering, Sri Ramakrishna Engineering College, Coimbatore – 641 022, India. E-mail: karthigham50@gmail.com.
Abstract: Industrial Control Systems (ICS) are susceptible to threats or attacks, and even minor changes or manipulation could cause major damage to industrial operations. Industrial control system cybersecurity is vital owing to the severe negative effects it could have on the economy, the environment, people, and politics. Therefore, it’s also crucial to design intrusion detection systems for industrial control systems. In this paper, an efficient intrusion detection system with clustered ensemble feature selection and a Multi-Level Modified Gated Recurrent Unit (M-GRU) classification model is proposed. This intrusion detection system with a general framework for clustered ensemble feature ranking approach is proposed to effectively find the best feature subset in network packet traffic data. The features designated are fed into a multi class classification algorithm Multi-Level Modified Gated Recurrent Unit (M-GRU) to efficiently detect the cyberattacks. Evaluation criteria including precision, accuracy, recall and F1 score are assessed and compared to other cutting-edge algorithms to assess the performance of the proposed model. The proposed model attained an average accuracy of 98.21 %. Results show that the suggested model increased the attack detection accuracy by an average of 5.935% and 0.116% when compared to the Gated Recurrent Unit, Long Short Term Memory, random forest and naïve bayes models.
Keywords: Industrial control system, intrusion detection, ensemble feature selection, classification, gated recurrent unit
