This rule is designed to detect suspicious activity related to the execution of the 'DllRegisterServer' command-line argument in the context of Windows process creation. The rule specifically targets instances where the command line includes 'DllRegisterServer', but the executing image is not the legitimate 'rundll32.exe'. This is a potential indicator of obfuscation techniques employed by attackers, where they may rename the rundll32 utility to evade detection mechanisms. By monitoring for such discrepancies, security practitioners can gain insights into potential malicious behavior aimed at exploiting the Windows environment. The detection rule contributes to enhanced visibility within threat intelligence platforms, particularly those focused on Windows process execution, and is part of a broader strategy to mitigate the risks associated with unauthorized application behavior.