The OpenCanary - NTP Monlist Request rule is designed to monitor and detect NTP monlist requests made to an OpenCanary instance. NTP (Network Time Protocol) monlist is a command that allows a client to query an NTP server for a list of clients that have recently contacted it. This behavior can indicate reconnaissance or potential misuse of the NTP service, as attackers may attempt to gather information about other hosts connected to the network. The rule utilizes log data identified by logtype 11001, which corresponds to logs generated by the OpenCanary application. It is categorized under high severity due to the potential impact of unauthorized data exposure through NTP services. The detection condition is straightforward, simply requiring matching contents of the specified logs. While the likelihood of false positives is considered unlikely, careful monitoring is recommended for responses to alerts triggered by this detection rule. The rule is still in an experimental phase, hence further refinements may occur based on its implementation and operational feedback.