Suspicious PowerShell Hidden Unrestricted Execution via ClickFix

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-14
Updated
2026-09-14

ATT&CK techniques

Execution
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects PowerShell launched with a hidden window together with an unrestricted execution policy and the no-profile flag, the launch pattern used by the LummaStealer 2.0 ClickFix lure to run its downloader stage. Attackers combine these flags to suppress user visibility and bypass script restrictions, so the combination is a strong signal of scripted malware delivery.

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