This analytic rule is designed to detect alterations to the Windows registry specifically targeting the Remote Desktop Protocol (RDP) settings. It focuses on changes made to the 'fDenyTSConnections' registry key, which when set to '1' disables RDP, preventing remote access to the machine. Such modifications are often carried out by malicious actors to hinder remote administration and can disrupt legitimate management activities. By monitoring Sysmon EventID 13, this rule aims to flag any unauthorized or suspicious registry modifications that could signify an attempt to isolate a system from remote access or management.