Logging Configuration Changes on Linux Host — Sigma Rule

Rule metadata and linked tags

Author: Mikhail Larin, oscd.community. Source status: test; severity: high. Source dates: 2019-10-25 / 2021-11-27.

{
  "product": "linux",
  "service": "auditd"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 6959d440017089ade92f5bd7cca39821db654fc1e5f3fbb9d532471c81188bd1

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Logging Configuration Changes on Linux Host
id: c830f15d-6f6e-430f-8074-6f73d6807841
status: test
description: Detect changes of syslog daemons configuration files
references:
    - self experience
author: Mikhail Larin, oscd.community
date: 2019-10-25
modified: 2021-11-27
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    product: linux
    service: auditd
detection:
    selection:
        type: 'PATH'
        name:
            - /etc/syslog.conf
            - /etc/rsyslog.conf
            - /etc/syslog-ng/syslog-ng.conf
    condition: selection
falsepositives:
    - Legitimate administrative activity
level: high

Original YAML and metadata in JSON

False positives

• Legitimate administrative activity

Source references

• self experience (source note; no public URL supplied)