The rule "RTCore Suspicious Service Installation" focuses on detecting the installation of the RTCore service on Windows systems. This service is associated with the MSI Afterburner application, which is designed for graphics card overclocking. However, it has been identified as a potential vector for malicious drivers that can be abused for unauthorized access or escalated privileges. The detection is achieved by monitoring the Windows System event logs, specifically looking for Event ID 7045 generated by the Service Control Manager when a new service is created. The condition is triggered when the service being installed is named 'RTCore64', indicating that it may be a sign of an attacker attempting to exploit this vulnerable driver. Given the nature of this detection, it has a high severity level and is pertinent for environments that utilize GPUs extensively, as malicious drivers can lead to severe security implications.