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PaloAlto - Possible port scan

Description

'Detects possible port scan.'
Rule type
Scheduled
Version
1.0.4
Declared status
Available
Query frequency
1h
Query period
1h
Trigger
gt 0

Declared MITRE coverage

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

Data types

KQL query

Original query, unchanged.

let threshold = 10;
PaloAltoCDLEvent
| where EventResourceId =~ 'TRAFFIC'
| where isnotempty(DstPortNumber) and isnotempty(SrcIpAddr)
| summarize PortSet = make_set(DstPortNumber) by SrcIpAddr, bin(TimeGenerated, 5m)
| where array_length(PortSet) > threshold
| extend IPCustomEntity = SrcIpAddr

Declared entities

IP

Related content

Links established from declared identifiers and solution manifests.

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

Source identifier
3575a9c0-51c9-11ec-bf63-0242ac130002
Additional source files 2Solutions/PaloAltoCDL/Analytic Rules/PaloAltoCDLPossiblePortScan.yamlsource ↗Solutions/PaloAltoCDL/Data/Solution_PaloAltoCDL.jsonsolution-membership ↗
GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.