This rule is designed to detect network connections initiated by the Add-In deployment cache updating utility, AddInUtil.EXE. Normally, this process does not initiate network activity, making its unexpected network connections a potential indicator of a command and control (C2) communication. The presence of such network behavior could signify that this utility is being exploited for malicious purposes, thus warranting closer investigation. The detection rule functions by monitoring network connection events for instances where the 'Initiated' attribute is marked true and the process image name ends with 'addinutil.exe'. This detection is classified with a high severity level due to the potential risks associated with unauthorized command and control communications.