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Disable Windows Firewall Rules via Netsh

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Disable Windows Firewall Rules via Netsh

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Identifies use of the netsh.exe to disable or weaken the local firewall. Attackers will use this command line tool to disable the firewall during troubleshooting or to enable network mobility.

Rule type: eql

Rule indices:

winlogbeat-*
logs-endpoint.events.*
logs-windows.*

Severity: medium

Risk score: 47

Runs every: 5 minutes

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

Maximum alerts per execution: 100

Tags:

Elastic
Host
Windows
Threat Detection
Defense Evasion

Version: 10 (version history)

Added (Elastic Stack release): 7.6.0

Last modified (Elastic Stack release): 7.16.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

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process where event.type in ("start", "process_started") and
process.name : "netsh.exe" and (process.args : "disable" and
process.args : "firewall" and process.args : "set") or (process.args
: "advfirewall" and process.args : "off" and process.args : "state")

Threat mapping

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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/

Rule version history

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Version 10 (7.16.0 release)

Formatting only

Version 9 (7.13.0 release)

Updated query, changed from:

event.category:process and event.type:(start or process_started) and
process.name:netsh.exe and process.args:(disable and firewall and set)
or process.args:(advfirewall and off and state)

Version 8 (7.12.0 release)

Formatting only

Version 7 (7.11.2 release)

Formatting only

Version 6 (7.11.0 release)

Formatting only

Version 5 (7.10.0 release)

Formatting only

Version 4 (7.9.1 release)

Formatting only

Version 3 (7.9.0 release)

Updated query, changed from:

event.action:"Process Create (rule: ProcessCreate)" and
process.name:netsh.exe and process.args:(disable and firewall and set)
or process.args:(advfirewall and off and state)

Version 2 (7.7.0 release)

Updated query, changed from:

event.action:"Process Create (rule: ProcessCreate)" and
process.name:"netsh.exe" and process.args:("firewall" and "set" and
"disable") or process.args:("advfirewall" and "state" and "off")

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