Creation or Modification of Root Certificateedit

Identifies the creation or modification of a local trusted root certificate in Windows. The install of a malicious root certificate would allow an attacker the ability to masquerade malicious files as valid signed components from any entity (e.g. Microsoft). It could also allow an attacker to decrypt SSL traffic.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-windows.*

Severity: low

Risk score: 21

Runs every: 5 minutes

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

Maximum alerts per execution: 100



  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Defense Evasion

Version: 1

Added (Elastic Stack release): 7.12.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positivesedit

Certain applications may install root certificates for the purpose of inspecting SSL traffic.

Rule queryedit

registry where event.type in ("creation", "change") and
registry.path : ( "HKLM\\Software\\Microsoft\\SystemCertific
ates\\Root\\Certificates\\*\\Blob", "HKLM\\Software\\Microsoft\\
SystemCertificates\\AuthRoot\\Certificates\\*\\Blob", "HKLM\\Sof
\Blob", "HKLM\\Software\\Policies\\Microsoft\\SystemCertificates
\\AuthRoot\\Certificates\\*\\Blob" )

Threat mappingedit