Potential File Transfer via Curl for Windows

process where host.os.type == "windows" and event.type == "start" and
  process.executable : (
    "?:\\Windows\\System32\\curl.exe",
    "?:\\Windows\\SysWOW64\\curl.exe"
  ) and
  process.command_line : "*http*" and
  process.parent.name : (
    "cmd.exe", "powershell.exe",
    "rundll32.exe", "explorer.exe",
    "conhost.exe", "forfiles.exe",
    "wscript.exe", "cscript.exe",
    "mshta.exe", "hh.exe", "mmc.exe"
  ) and 
  not (
    ?user.id == "S-1-5-18" and
    /* Don't apply the user.id exclusion to Sysmon for compatibility */
    not data_stream.dataset : ("windows.sysmon_operational", "windows.sysmon")
  ) and
  /* Exclude System Integrity Processes for Sysmon */
  not ?winlog.event_data.IntegrityLevel == "System"