References: 1
SPL:
| tstats summariesonly=true allow_old_summaries=true count FROM datamodel=Endpoint.Processes WHERE index="windows" Processes.signature_id=4688 (Processes.process_name="powershell.exe" Processes.process="*start-process*") OR (Processes.process_name="cmd.exe" Processes.process="*/c \"wmic path win32_logicaldisk get caption,filesystem,freespace,size,volumename\"*") BY index, host, Processes.signature_id, Processes.signature, Processes.process, Processes.user, _time span=1s
| rename Processes.* AS *, signature_id AS EventCode, signature AS EventDescription
| eval Time = strftime(_time, "%Y-%m-%d %H:%M:%S %z")
| lookup ad_users sAMAccountName AS user OUTPUT displayName AS Name, mail AS Email
| table Time, index, host, EventCode, EventDescription, process, user, Name, Email