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Mimecast Audit - Logon Authentication Failed

Description

Detects threat when logon authentication failure found in audit
Rule type
Scheduled
Version
1.0.1
Query frequency
30m
Query period
30m
Trigger
gt 3

Declared MITRE coverage

Declared sources

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

Connectors

Data types

KQL query

Original query, unchanged.

MimecastAudit 
| where ['Source IP'] !="" and ['Audit Type'] == "Logon Authentication Failed"
| extend   SourceIp = ['Source IP'] 

Declared entities

IPMailboxCloudApplication

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
f00197ab-491f-41e7-9e22-a7003a4c1e54
Additional source files 2Solutions/Mimecast/Analytic Rules/MimecastAudit/Mimecast_Audit.yamlsource ↗Solutions/Mimecast/Data/Solution_Mimecast.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.