Suspicious Local Password Validation via dscl authonly

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

ATT&CK techniques

Cred Access
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects dscl used with authonly to validate a local account password, the step Banshee performs to verify credentials captured through its fake prompt. This directory service call confirms a phished password before further theft. Detecting it surfaces credential validation by the stealer.

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Suspicious Local Password Validation via dscl authonly
Pivot detection · T1555.003 · 9 related

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