Suspicious SQL Server - New Member Added to a Server Role (via application)

PremiumReviewedSigma · Medium · v1
Product
mssql
Category
application
Author
HuntRule
Published
2026-11-06
Updated
2026-11-06

ATT&CK techniques

Persistence → Priv Esc
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects adds his account to a server role (sysadmin, securityadmin, serveradmin, ...).

Related detections9 linkedT1098 — drag to rearrange
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Malicious Disabled Guest or Builtin Account Activated - Command (via process_creation)
Malicious New Member Added to an "OCS/Lync/Skype for Business" Administration Group - High Risk (via security)
Malicious New Member Added to a "OCS/Lync/Skype for Business" Administration Group - Low Risk (via security)
Malicious Local Group Membership Change (via powershell)
Suspicious AWS Console Login Profile Creation for Persistence (via cloudtrail)
Suspicious Bapak AWS EC2 ImportKeyPair With Known Attacker Key Names via CloudTrail
Suspicious SQL Server - New Member Added to a Server Role (via application)
Pivot detection · T1098 · 9 related

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