The detection rule for Linux c89 Privilege Escalation monitors the execution of the 'c89' command using elevated privileges, which could enable unauthorized users to compile and run C programs with root access. This analysis underscores the dangers associated with privilege escalation, as such actions can lead to total system compromise, allowing attackers to execute a variety of commands with administrative capabilities. By leveraging data collected from Endpoint Detection and Response (EDR) agents, the rule scrutinizes process creation events, specifically looking for instances where 'c89' is executed alongside elevated commands like 'sudo'. If such processes are detected, it points to a potential anomaly that warrants further investigation. The implementation of this rule requires proper ingestion and integration of relevant logs into Splunk, ensuring that the process GUID, command-line arguments, and other pertinent fields are accessible for effective monitoring and incident response.