github splunk/security_content v5.23.0

11 hours ago

🚀 Key Highlights

  • 🤖 Cisco Catalyst SD-WAN Analytics:

Introduced a new analytic story for Cisco Catalyst SD-WAN focused on identifying anomalous control-plane relationships across vManage, vSmart, and edge devices. By leveraging telemetry related to control-connection state changes, peer identity, public IP associations, and system roles, this release detects rare or unexpected peer interactions that may signal misconfigurations, unauthorized infrastructure, or adversary presence within SD-WAN environments. New detections — Cisco SD-WAN Low Frequency Rogue Peer and Cisco SD-WAN Peering Activity — provide visibility into suspicious control-plane communications and abnormal peering patterns that deviate from established network baselines.

New Analytic Story - [1]

New Analytics - [3]

Other Updates

  • Added end-to-end YAML formatting/validation (yamlfmt + yamllint) via a new pre-commit hook and CI “YAML Validation” job (validate_yaml.py), updates docs, and auto-formats all detections/analytics (including initial SPL beautification using |- for readability).
  • Updates multiple detections to better cover calc-related binaries by adding CalculatorApp.exe/win32calc.exe entries, fixing a LOLBAS network-traffic filter bug (All_Traffic.dest_ip), and enhancing calc DLL side-loading rule metadata (including explicit WindowsCodecs.dll) to address issue #3916.

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