Disable System Firewall

 1title: Disable System Firewall
 2id: 53059bc0-1472-438b-956a-7508a94a91f0
 3status: test
 4description: Detects disabling of system firewalls which could be used by adversaries to bypass controls that limit usage of the network.
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.004/T1562.004.md
 7    - https://firewalld.org/documentation/man-pages/firewall-cmd.html
 8author: 'Pawel Mazur'
 9date: 2022-01-22
10tags:
11    - attack.t1562.004
12    - attack.defense-evasion
13logsource:
14    product: linux
15    service: auditd
16detection:
17    selection:
18        type: 'SERVICE_STOP'
19        unit:
20            - 'firewalld'
21            - 'iptables'
22            - 'ufw'
23    condition: selection
24falsepositives:
25    - Admin activity
26level: high

References

• atomic-red-team/atomics/T1562.004/T1562.004.md at f339e7da7d05f6057fdfcdd3742bfcf365fee2a9 · redcanaryco/atomic-red-team

  

  Small and highly portable detection tests based on MITRE's ATT&CK. - redcanaryco/atomic-red-team

  
  Read More

• firewall-cmd

  Welcome to the firewalld project homepage! Firewalld provides a dynamically managed firewall with support for network/firewall zones that defines the trust level of network connections or interfaces.

  
  Read More

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• Bpfdoor TCP Ports Redirect
• Disable Microsoft Defender Firewall via Registry