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Abnormal Security - User-reported email judged malicious

Description

'Creates an incident when an email a user reported to the Abnormal Security Abuse Mailbox is judged malicious. Surfaces the reporter, the original recipient, and the campaign so analysts can scope and remediate look-alike messages. Spam- and safe-judged reports are intentionally excluded.'
Rule type
Scheduled
Version
1.0.0
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.

ABNORMAL_SECURITY_ABUSE_MAILBOX_CL
| where abx_body_abx_body_reported_b == true
| where tolower(abx_body_abx_body_judgement_s) == "malicious"
| extend
    ReporterEmail = abx_body_abx_body_reporter_address_s,
    RecipientEmail = abx_body_abx_body_recipient_address_s,
    Subject = abx_body_abx_body_subject_s,
    Judgement = abx_body_abx_body_judgement_s,
    MessageId = abx_body_abx_body_internet_message_id_s,
    CampaignId = abx_body_abx_body_campaign_id_g
| project TimeGenerated, ReporterEmail, RecipientEmail, Subject, Judgement, MessageId, CampaignId

Declared entities

AccountMailMessage

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
51c6ba55-fecd-4be0-9064-1aafc4d3e8d6
Additional source files 2Solutions/AbnormalSecurity/Analytic Rules/AbnormalSecurity_AbuseMailboxMalicious.yamlsource ↗Solutions/AbnormalSecurity/Data/Solution_AbnormalSecurity.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.