Turla STOCKSTAY AppDomainManager DLL Hijack via msiexec loading .NET DLL from non-standard path
Detects instances where msiexec.exe loads a DLL from non-standard system directories (outside of Program Files or Windows folders) with suspicious naming conventions (e.g., containing 'scheduler', 'update', or 'onedrive'), followed by network activity to public IP ranges or registry persistence modifications. This behavior is indicative of potential DLL side-loading or proxy execution by the Windows Installer binary to achieve persistence or command and control.
Microsoft Sentinel (KQL)
