Suspicious Hidden PowerShell Downloading Payload via ClickFix (via process_creation)

PremiumReviewedSigma · Medium · v1
Category
process_creation
Author
HuntRule
Published
2026-08-24
Updated
2026-08-28

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 that immediately downloads and executes remote content. The ClearFake ClickFix lure tricks users into pasting a mixed-case PowerShell command that runs with a suppressed window to fetch its next stage. A hidden PowerShell window combined with download and execution cmdlets is characteristic of ClickFix social engineering.

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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.