cmd.exe/powershell.exe auto-start

References: 1, 2, 3
SPL:

| tstats summariesonly=true allow_old_summaries=true count FROM datamodel=Endpoint.Services WHERE index="windows" Services.signature_id="7045" Services.process IN ("*comspec*", "*cmd*", "*powershell*", "*pwsh*") BY index, host, Services.signature_id, Services.signature, Services.process, Services.service_name, _time span=1s
| rename Services.* AS *, signature_id AS EventCode, signature AS EventDescription
| eval Time=strftime(_time, "%Y-%m-%d %H:%M:%S %z")
| table Time, host, EventCode, EventDescription, service_name, process, indexCopy