changepk.exe

logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - Image|endswith: '\changepk.exe'
    - OriginalFileName:
        - 'changepk.exe'
        - 'changepkey.exe'
  condition: selection

| tstats summariesonly=false count values(Processes.original_file_name) as original_file_name
    from datamodel=Endpoint.Processes
    where (Processes.original_file_name="changepk.exe" OR Processes.original_file_name="changepkey.exe" OR Processes.process_name="changepk.exe")
    by Processes.dest Processes.process_name Processes.process_path Processes.process
| rename Processes.* as *

DeviceProcessEvents
| where ProcessVersionInfoOriginalFileName in~ ("changepk.exe", "changepkey.exe")
    or FileName =~ "changepk.exe"

process where event.type == "start" and
  (process.pe.original_file_name in~ ("changepk.exe", "changepkey.exe") or
   process.name : "changepk.exe")

['changepk.exe', 'changepkey.exe'].includes(String(OriginalFileName || '').toLowerCase())