Attempt to Disable IPTables or Firewall

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Attempt to Disable IPTables or Firewall

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Identifies attempts to disable iptables or a firewall service, a technique adversaries can to modify the network traffic hosts are allowed to send and receive.

Rule type: query

Rule indices:

  • auditbeat-*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-6m (Date Math format, see also Additional look-back time)

Maximum signals per execution: 100

Tags:

  • Elastic
  • Linux

Version: 1

Added (Elastic Stack release): 7.8.0

Rule query

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

Threat mapping

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Framework: MITRE ATT&CKTM