A method of using modern endpoint detection and response (EDR) systems to protect against complex attacks

The subject of the research in this article is the architecture of Endpoint Detection and Response and the EDR agent as their base parts in terms of mechanisms for detecting and countering complex attacks on information and communication systems (ICS). The aim of the work is to develop of method for improving the efficiency of using Endpoint Detection and Response (EDR) to reduce the risks of compromising ICS information, industrial, and infrastructure objects by effectively redistributing and utilizing the available EDR mechanisms, the cybersecurity team, and other resources available for implementing security measures in an enterprise, institution, or organization. The article addresses the following tasks: reviewing and analyzing existing EDR systems, analyzing the architecture of EDR solutions and EDR agents, the features of their use, the logic behind the construction of methods and mechanisms for detecting threats to the system from malicious actors and malicious code. The task of providing recommendations for the organization of ICS is also separately addressed in terms of the need to protect the entire ICS and its individual elements, as well as in terms of the available resources (the cybersecurity team, their qualifications and level of awareness of the architecture of EDR solutions) and means (available EDR system elements) for organizing protection. The following methods are used: modeling attack mechanisms, modeling attacker behavior. The following results were obtained: general and specific recommendations were formulated for optimizing the operation of EDR systems and ensuring the effective use of EDR system elements in the information and communication networks of enterprises, organizations, and institutions of various types and orientations depending on the available resources and the information requiring protection. Conclusions: The identified recommendations for the application of EDR mechanisms for protecting information systems and networks allow optimizing the costs of creating a protection infrastructure and implementing security measures, taking into account the characteristics of the available tools and the training and awareness of the cybersecurity team both in terms of response time to threats and the complexity and cost of performing protection tasks.