SigmaHQ/rules/linux/lnx_system_network_discovery.yml

title: System Network Discovery - Linux
id: e7bd1cfa-b446-4c88-8afb-403bcd79e3fa
status: experimental
description: Detects enumeration of local network configuration
author: Ömer Günal and remotephone, oscd.community
date: 2020/10/06
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1016/T1016.md
logsource:
    category: process_creation
    product: linux
detection:
    selection1:
        Image|endswith:
            - '/firewall-cmd'
            - '/ufw'
            - '/iptables'
            - '/netstat'
            - '/ss'
            - '/ip'
            - '/ifconfig'
            - '/systemd-resolve'
            - '/route'
    selection2:
        CommandLine|contains: '/etc/resolv.conf'
    condition: selection1 or selection2
falsepositives:
    - Legitimate administration activities
level: informational
tags:
    - attack.discovery
    - attack.t1016