Detection rules › Sigma
System Network Discovery - Linux
Detects enumeration of local network configuration
Known false positives
- Legitimate administration activities
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery |
Telemetry coverage
| Platform | Record / event type |
|---|---|
| Linux | Event ID 1: Process Create |
Rule body
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
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match value:"/etc/resolv.conf" |
Image | ends_with |
| field:"Image" kind:ends_with |