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blue-team-tools/rules/linux/macos_system_net_disc_firewall_enum.yml
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title: System Network Discovery - Firewall Enumeration
id: 71da9e5a-fb1e-46a8-abc1-28c80173af4c
status: experimental
description: Detects enumeration of firewall configuration
author: remotephone, oscd.community
date: 2020/10/06
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1016/T1016.md
logsource:
product: macos
detection:
selection:
CommandLine|contains:
- 'netstat'
- 'ifconfig'
- 'defaults read /Library/Preferences/com.apple.alf'
- 'socketfilterfw'
condition: selection
falsepositives:
- Legitimate administration activities
- Redirecting output of echo command to a path that contains the word "cron"
level: low
tags:
- attack.discovery
- attack.t1016