Suspicious Encoded PowerShell Host Reconnaissance via Get-ComputerInfo via ps_script

PremiumReviewedSigma · Medium · v1
Product
windows
Category
ps_script
Author
HuntRule
Published
2026-08-17
Updated
2026-08-28

ATT&CK techniques

Execution → Discovery
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects PowerShell script content invoking the Get-ComputerInfo cmdlet to enumerate detailed system information. A threat actor abusing a free Elastic Cloud SIEM trial ran this command to profile compromised hosts before exfiltrating the results, so its appearance in encoded or automated PowerShell is an early indicator of system discovery ahead of data theft.

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Pivot detection · T1059.001 · 9 related

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