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Tomcat - Multiple empty requests from same IP

Description

'Detects multiple empty requests from same IP'
Rule type
Scheduled
Version
1.0.2
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

KQL query

Original query, unchanged.

let threshold = 50;
TomcatEvent
| where HttpResponseBodyBytes == 0
| summarize MultipleClientErrors = count() by SrcIpAddr, bin(TimeGenerated, 5m)
| where MultipleClientErrors > 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
7c9a1026-4872-11ec-81d3-0242ac130003
Additional source files 2Solutions/Tomcat/Analytic Rules/TomcatMultipleEmptyRequestsFromSameIP.yamlsource ↗Solutions/Tomcat/Data/Solution_Tomcat.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.