Detection rules › Sigma
System Network Discovery - Linux
Detects enumeration of local network configuration
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery | T1016 System Network Configuration Discovery |
Event coverage
| Provider | Event |
|---|---|
| Sysmon-for-Linux | Event ID 1 |
Rule body yaml
title: System Network Discovery - Linux
id: e7bd1cfa-b446-4c88-8afb-403bcd79e3fa
status: test
description: Detects enumeration of local network configuration
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1016/T1016.md
author: Ömer Günal and remotephone, oscd.community
date: 2020-10-06
modified: 2022-09-15
tags:
- attack.discovery
- attack.t1016
logsource:
category: process_creation
product: linux
detection:
selection_img:
Image|endswith:
- '/firewall-cmd'
- '/ufw'
- '/iptables'
- '/netstat'
- '/ss'
- '/ip'
- '/ifconfig'
- '/systemd-resolve'
- '/route'
selection_cli:
CommandLine|contains: '/etc/resolv.conf'
condition: 1 of selection_*
falsepositives:
- Legitimate administration activities
level: informational
Stages and Predicates
Stage 0: condition
1 of selection_*Stage 1: selection_img
selection_img:
Image|endswith:
- '/firewall-cmd'
- '/ufw'
- '/iptables'
- '/netstat'
- '/ss'
- '/ip'
- '/ifconfig'
- '/systemd-resolve'
- '/route'
Stage 2: selection_cli
selection_cli:
CommandLine|contains: '/etc/resolv.conf'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|
Image | ends_with |
|