Suspicious Disabling Security Utilities - Builtin (via syslog)
This rule detects disabling security tools
SigmamediumLinuxv1
sigma
suspicious-disabling-security-utilities-builtin-via-syslog
title: Suspicious Disabling Security Utilities - Builtin (via syslog)
id: 719f5fd4-4504-5b66-8e84-f73830a970f5
status: stable
description: This rule detects disabling security tools
references:
- https://attack.mitre.org/techniques/T1686/
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.004/T1562.004.md
author: Huntrule Team
date: 2026-05-25
tags:
- attack.defense-impairment
- attack.t1686
logsource:
product: linux
service: syslog
detection:
keywords:
- 'stopping iptables'
- 'stopping ip6tables'
- 'stopping firewalld'
- 'stopping cbdaemon'
- 'stopping falcon-sensor'
condition: keywords
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.