Suspicious SMB DLL Lateral Movement

PremiumReviewedSigma · Medium · v1
Product
zeek
Service
smb_files
Author
HuntRule
Published
2026-08-18
Updated
2026-08-28

ATT&CK techniques

Lateral Movement
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

Detection of potential us of SMB to transfer DLL's into the ProgramData folder of hosts for purposes of lateral movement.

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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.