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1 2023

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Predictive Modelling of a Honeypot System Based on a Markov Decision Process and a Partially Observable Markov Decision Process

Wang Lidong, Mosher Reed, Duett Patti, Falls Terril

Applied Cybersecurity & Internet Governance

2023

Vol. 2, No. 1

1--14

A honeypot is used to attract and monitor attacker activities and capture valuable information that can be used to help practice good cybersecurity. Predictive modelling of a honeypot system based on a Markov decision process (MDP) and a partially observable Markov decision process (POMDP) is performed in this paper. Analyses over a finite planning horizon and an infinite planning horizon for a discounted MDP are respectively conducted. Four methods, including value iteration (VI), policy iteration (PI), linear programming (LP), and Q-learning, are used in the analyses over an infinite planning horizon for the discounted MDP. The results of the various methods are compared to evaluate the validity of the created MDP model and the parameters in the model. The optimal policy to maximise the total expected reward of the states of the honeypot system is achieved, based on the MDP model employed. In the modelling over an infinite planning horizon for the discounted POMDP of the honeypot system, the effects of the observation probability of receiving commands, the probability of attacking the honeypot, the probability of the honeypot being disclosed, and transition rewards on the total expected reward of the honeypot system are studied.