sequence by process.entity_id with maxspan=1m

  /* first sequence to capture the start of Windows processes */
  [process where host.os.type == "windows" and event.type == "start" and process.pid != 4 and

    /* ignore NT Authority and Network Service accounts */
    not user.id : ("S-1-5-19", "S-1-5-20") and

    /* filter out anything trusted but not from Microsoft */
    /* LOLBins will be inherently trusted and signed, so ignore everything else trusted */
    not (process.code_signature.trusted == true and not startsWith(process.code_signature.subject_name, "Microsoft")) and

    /* filter out PowerShell scripts from Windows Defender ATP */
    not (
      process.name : "powershell.exe" and
      process.args :"?:\\ProgramData\\Microsoft\\Windows Defender Advanced Threat Protection\\Downloads\\PSScript_*.ps1")]

  /* second sequence to capture network connections over port 445 related to SMB */
  [network where host.os.type == "windows" and destination.port == 445 and process.pid != 4]

/* end the sequence when the process ends where joining was on process.entity_id */
until [process where host.os.type == "windows" and event.type == "end"]