huntrule

Cisco AAA Configuration Modification Command Patterns

Flags Cisco AAA command activity that includes keywords for configuration changes like HTTP/HTTPS, KRON, ACLs, and NTP.

FreeReviewedSigma · Medium · v2
Product
cisco
Service
aaa
Author
Austin Clark (SigmaHQ), DRL 1.1
Published
2019-08-12
Updated
2026-07-31
AnalysisDetection

ATT&CK techniques

Execution → Impact

  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule flags Cisco AAA-related configuration change commands containing specific keywords. Such changes can enable attacker impact or persistence by altering services, scheduling behavior, access controls, or related network settings. It relies on telemetry that records the presence of these command keywords in the observed activity. Legitimate administrative changes may also match, so analyst review is required.

Reporting behind it

Related detections9 linkedT1490 — drag to rearrange
Malicious Mass Hyper-V Virtual Machine Shutdown via PowerShell by Kraken Ransomware
Suspicious Shadow Copy Deletion via Vssadmin by Kraken Ransomware
Malicious Volume Shadow Copy Deletion via vssadmin or WMIC
Malicious Volume Shadow Copy Deletion via vssadmin
Suspicious Free Space Wipe via cipher.exe
Malicious Shadow Copy Deletion Via WMI
Volume Shadow Copy Deletion via vssadmin or wmic
Malicious Inhibit System Recovery via Backup and Shadow Copy Deletion (via process_creation)
Malicious Shadow Copy Deletion via vssadmin
Cisco AAA Configuration Modification Command Patterns
Pivot detection · T1490 · 9 related

Changelog

v2
  1. v2
    Candidate ingested via manual entry.2026-07-31
  2. v1
    No changelog recorded for this version.2026-07-30

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