The detection rule targets potential exploitation of a known vulnerability, CVE-2022-30190, often associated with the Microsoft Support Diagnostic Tool (msdt.exe) and the DogWalk malware. This vulnerability allows threat actors to leverage msdt.exe to load arbitrary libraries, specifically sdiageng.dll, which can facilitate further malicious activities. The rule captures specific Sysmon event 7, which is logged whenever a process loads a module, in this case, checking if msdt.exe is loading sdiageng.dll. By monitoring for these events, security teams can effectively flag potentially malicious behavior associated with the exploitation of this vulnerability.