Possible Logged-On Session Discovery via Quser or Qwinsta (via process_creation)

PremiumReviewedSigma · Low · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-03
Updated
2026-09-03

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. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects quser or qwinsta enumerating interactive logon sessions, a system-owner and remote-session discovery step attackers use to find active administrators before lateral movement. Session discovery is tracked in the Red Canary Threat Detection Report. Detecting these queries surfaces reconnaissance of who is logged on.

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Possible Logged-On Session Discovery via Quser or Qwinsta (via process_creation)
Pivot detection · T1033 · 9 related

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