Linux System Information Discovery via Common Command-Line Utilities

Flags Linux executions of uname, hostname, uptime, lspci, dmidecode, lscpu, and lsmod for system discovery behavior.

FreeReviewedSigma · Informational · v2

Product: linux
Category: process_creation
Author: Ömer Günal, oscd.community (SigmaHQ), DRL 1.1
Published: 2020-10-08
Updated: 2026-07-31

ATT&CK techniques

Discovery

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
- T1082System Information Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule identifies process executions of common Linux commands used to gather system and hardware information, including uname, hostname, uptime, lspci, dmidecode, lscpu, and lsmod. Such discovery activity helps attackers profile the host environment before follow-on exploitation or lateral movement. The detection relies on Linux process creation telemetry by matching the executed image path ending with these utilities.

Reporting behind it

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Linux System Information Discovery via Common Command-Line Utilities

Pivot detection · T1082 · 9 related

Changelog

v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

linux-system-information-discovery-via-common-system-command-execution-42df45e7

title: Linux System Information Discovery via Common Command-Line Utilities
id: 4354fd04-31f5-40bf-9700-fbb6ba9ed102
status: stable
description: This rule identifies process executions of common Linux commands used to gather system and hardware information, including uname, hostname, uptime, lspci, dmidecode, lscpu, and lsmod. Such discovery activity helps attackers profile the host environment before follow-on exploitation or lateral movement. The detection relies on Linux process creation telemetry by matching the executed image path ending with these utilities.
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1082/T1082.md
  - https://github.com/SigmaHQ/sigma/blob/master/rules/linux/process_creation/proc_creation_lnx_system_info_discovery.yml
author: Ömer Günal, oscd.community, Huntrule Team
date: 2020-10-08
modified: 2021-09-14
tags:
  - attack.discovery
  - attack.t1082
logsource:
  product: linux
  category: process_creation
detection:
  selection:
    Image|endswith:
      - /uname
      - /hostname
      - /uptime
      - /lspci
      - /dmidecode
      - /lscpu
      - /lsmod
  condition: selection
falsepositives:
  - Legitimate administration activities
level: informational
license: DRL-1.1
related:
  - id: 42df45e7-e6e9-43b5-8f26-bec5b39cc239
    type: derived

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