huntrule

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
AnalysisDetection

ATT&CK techniques

Discovery

  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. 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

Related detections9 linkedT1082 — drag to rearrange
Suspicious System Profiler Hardware Enumeration (via process_creation)
Suspicious Hardware Inventory Discovery via WMIC Device Class Queries (via process_creation)
Suspicious macOS Hardware Identifier Reconnaissance via ioreg (via process_creation)
Suspicious Encoded PowerShell Host Reconnaissance via Get-ComputerInfo via ps_script
Suspicious Host Recon via ConvertFrom-Csv and ConvertTo-Json
Suspicious Java Process Spawning Reconnaissance Commands via Cleo MFT (via process_creation)
Suspicious Reconnaissance Commands Spawned by Samsung MagicINFO Server
Suspicious macOS Download History Query via sqlite3
Suspicious Security Policy Export via SecEdit (via process_creation)
Linux System Information Discovery via Common Command-Line Utilities
Pivot detection · T1082 · 9 related

Changelog

v2
  1. v2
    Candidate ingested via manual entry.2026-07-31
  2. 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.