Attempt to Disable IPTables or Firewall

Adversaries may attempt to disable the iptables or firewall service in an attempt to affect how a host is allowed to receive or send network traffic.

Rule type: query

Rule indices:

auditbeat-*
logs-endpoint.events.*

Severity: medium

Risk score: 47

Runs every: 5m

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

Maximum alerts per execution: 100

References: None

Tags:

Elastic
Host
Linux
Threat Detection
Defense Evasion

Version: 7

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

edit

event.category:process and event.type:(start or process_started) and
  process.name:ufw and process.args:(allow or disable or reset) or

  (((process.name:service and process.args:stop) or
     (process.name:chkconfig and process.args:off) or
     (process.name:systemctl and process.args:(disable or stop or kill))) and
   process.args:(firewalld or ip6tables or iptables))

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Impair Defenses
- ID: T1562
- Reference URL: https://attack.mitre.org/techniques/T1562/
Sub-technique:
- Name: Disable or Modify Tools
- ID: T1562.001
- Reference URL: https://attack.mitre.org/techniques/T1562/001/

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