NTDS or SAM Database File Copied

edit

Identifies a copy operation of the Active Directory Domain Database (ntds.dit) or Security Account Manager (SAM) files. Those files contain sensitive information including hashed domain and/or local credentials.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-endpoint.events.*
  • logs-windows.*

Severity: high

Risk score: 73

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 33

References:

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Credential Access

Version: 8

Rule authors:

  • Elastic
  • Austin Songer

Rule license: Elastic License v2

Investigation guide

edit

Rule query

edit
process where event.type in ("start", "process_started") and
  (
    (process.pe.original_file_name in ("Cmd.Exe", "PowerShell.EXE", "XCOPY.EXE") and
       process.args : ("copy", "xcopy", "Copy-Item", "move", "cp", "mv")
    ) or
    (process.pe.original_file_name : "esentutl.exe" and process.args : ("*/y*", "*/vss*", "*/d*"))
  ) and
  process.args : ("*\\ntds.dit", "*\\config\\SAM", "\\*\\GLOBALROOT\\Device\\HarddiskVolumeShadowCopy*\\*", "*/system32/config/SAM*")

Framework: MITRE ATT&CKTM