SigmaHQ/rules/linux/lnx_system_network_connections_discovery.yml

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YAML

title: System Network Connections Discovery
id: 4c519226-f0cd-4471-bd2f-6fbb2bb68a79
status: experimental
description: Detects usage of system utilities to discover system network connections
author: Daniil Yugoslavskiy, oscd.community
date: 2020/10/19
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1049/T1049.md
logsource:
category: process_creation
product: linux
detection:
selection:
Image|endswith:
- '/who'
- '/w'
- '/last'
- '/lsof'
- '/netstat'
condition: selection
falsepositives:
- Legitimate activities
level: low
tags:
- attack.discovery
- attack.t1049