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API - Suspicious Login

Description

'42Crunch API protection against suspicious login'
Rule type
Scheduled
Version
3.0.1
Declared status
Available
Query frequency
5m
Query period
5m
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 firstRec = FortyTwoCrunchAPIProtection
| where TimeGenerated >= ago(5m) 
| project-away NonBlockingMode, SourcePort, DestinationPort, Query, ApiId, RequestHeader, ResponseHeader, Errors, EventType, Uuid
| where UriPath has "/api/login?user=" and Status in (200, 403);
let ipAddressCount = toscalar(firstRec | summarize by SourceIp | count);
let secondRec = firstRec | summarize arg_max(TimeGenerated, *) by SourceIp;
let recCount = iff((toscalar(secondRec | count) > 3), ipAddressCount, 0);
secondRec | take recCount

Declared entities

IPHostAccount

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
7bdc10d6-aa24-4ca9-9a93-802cd8761354
Additional source files 2Solutions/42Crunch API Protection/Analytic Rules/APISuspiciousLogin.yamlsource ↗Solutions/42Crunch API Protection/Data/Solution_42CrunchAPIProtection.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.