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Apache - Multiple client errors from single IP

Description

'Detects multiple client errors from one source in short timeframe'
Rule type
Scheduled
Version
1.0.3
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 = 100;
ApacheHTTPServer
| where HttpStatusCode >= 400 and HttpStatusCode <= 499
| 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
15f5a956-3af9-11ec-8d3d-0242ac130003
Additional source files 2Solutions/ApacheHTTPServer/Analytic Rules/ApacheMultipleClientErrorsFromSingleIP.yamlsource ↗Solutions/ApacheHTTPServer/Data/Solution_Apache Http Server.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.