SIMULATION OF COMPUTER ATTACKS ON DISTRIBUTED SOFTWARE
Summary Objective: Evaluation of the degree of protection of distributed software from computer attacks accounting for all speciﬁc features of design and functioning of this system, primarily its use of various types of networks, including open network connections. Methods: Mathematical simulation based on Markov processes is applied to the process of computer attack. Results: The proposed method is put to evaluation test using the example of Net-Worm.Win32.Sasser attack as one of the classic computer attacks with a conventional set of parameters. A mathematical model of imitation computer attack on distributed software is built, including safe and potentially dangerous states of the system and accounting for probabilities of realization of concrete security threats for such a system with set structural and functional characteristics and speciﬁc features of its functioning. Practical importance: A generalised method for simulating of a computer attack and a prototype program module for simulating computer attack and reaction to it were developed, which is essential for further development of distributed systems.