Elastic medium stable eql
Suricata and Elastic Defend Network Correlation
This detection correlates Suricata alerts with Elastic Defend network events to identify the source process performing the network activity.
Detection Logic
sequence by source.port, source.ip, destination.ip with maxspan=5s
[network where data_stream.dataset == "suricata.eve" and event.kind == "alert" and
event.severity != 3 and source.ip != null and destination.ip != null and
not source.domain : ("*nessusscan*", "SCCMPS*") and
not rule.name in ("ET INFO SMB2 NT Create AndX Request For a Powershell .ps1 File", "ET SCAN MS Terminal Server Traffic on Non-standard Port")]
[network where event.module == "endpoint" and event.action in ("disconnect_received", "connection_attempted") and
not process.executable in ("System", "C:\\Program Files (x86)\\Admin Arsenal\\PDQ Inventory\\PDQInventoryService.exe") and
not process.executable : "C:\\Windows\\AdminArsenal\\PDQInventory-Scanner\\service-*\\exec\\PDQInventoryScanner.exe"] Field Validations
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