Detection rules › Sigma

Active Directory Certificate Services Denied Certificate Enrollment Request

Status
test
Severity
low
Log source
product windows, service system
Author
@SerkinValery
Source
github.com/SigmaHQ/sigma

Detects denied requests by Active Directory Certificate Services. Example of these requests denial include issues with permissions on the certificate template or invalid signatures.

MITRE ATT&CK coverage

Telemetry coverage

Rule body

title: Active Directory Certificate Services Denied Certificate Enrollment Request
id: 994bfd6d-0a2e-481e-a861-934069fcf5f5
status: test
description: |
    Detects denied requests by Active Directory Certificate Services.
    Example of these requests denial include issues with permissions on the certificate template or invalid signatures.
references:
    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/dd299871(v=ws.10)
    - https://www.gradenegger.eu/en/details-of-the-event-with-id-53-of-the-source-microsoft-windows-certificationauthority/
author: '@SerkinValery'
date: 2024-03-07
tags:
    - attack.credential-access
    - attack.defense-impairment
    - attack.t1553.004
logsource:
    product: windows
    service: system
detection:
    selection:
        Provider_Name: 'Microsoft-Windows-CertificationAuthority'
        EventID: 53
    condition: selection
falsepositives:
    - Unknown
level: low

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    Provider_Name: 'Microsoft-Windows-CertificationAuthority'
    EventID: 53

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
Provider_Nameeq
  • Microsoft-Windows-CertificationAuthority
field:"Provider_Name" kind:eq value:"Microsoft-Windows-CertificationAuthority"