An example of these log entries can be found below : By correlating the user , IP address and GUID from the Remote PowerShell HTTP logs to the Exchange frontend , CrowdStrike found a request using the mailbox to the following OWA URL , , corresponding to the IIS log entry below : The backend request for the new exploitation chain is similar to the example shown below : This request seemed to show a novel , previously undocumented , way to reach the PowerShell remoting service through the OWA frontend endpoint , instead of leveraging the endpoint .