The following hunting analytic identifies the use of Get-WMIObject Win32_Group being used with PowerShell to identify local groups on the endpoint. \ Typically, by itself, is not malicious but may raise suspicion based on time of day, endpoint and username. \ During triage, review parallel processes and identify any further suspicious behavior.
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Get Wmiobject Group Discovery Help
To successfully implement this search you need to be ingesting information on process that include the name of the process responsible for the changes from your endpoints into the Endpoint datamodel in the Processes node. In addition, confirm the latest CIM App 4.20 or higher is installed and the latest TA for the endpoint product.
Search
| tstats`security_content_summariesonly`countmin(_time) as firstTime max(_time) as lastTime fromdatamodel=Endpoint.Processes where (Processes.process_name=powershell.exe OR processes.process_name=cmd.exe) (Processes.process="*Get-WMIObject*"AND Processes.process="*Win32_Group*") by Processes.dest Processes.user Processes.parent_process_name Processes.process_name Processes.process Processes.original_file_name Processes.process_id Processes.parent_process_id | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)`| `security_content_ctime(lastTime)` | `get_wmiobject_group_discovery_filter`