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Abnormal Security - Account Takeover case opened
Description
'Creates an incident when Abnormal Security opens an Account Takeover (ATO) case,
indicating a mailbox or user account is suspected to be compromised. The ATO case
severity, status, and observed indicators are surfaced for triage.'
- 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_ATO_CASE_CL
| where isnotempty(abx_body_abx_body_ato_case_id_s)
// Collapse to one row per ATO case (earliest event in the window) so repeated
// events for the same case do not raise duplicate alerts.
| summarize arg_min(TimeGenerated, *) by CaseId = abx_body_abx_body_ato_case_id_s
| extend
CompromisedAccount = abx_body_abx_body_compromised_account_s,
CaseSeverity = abx_body_abx_body_severity_s,
CaseStatus = abx_body_abx_body_status_s,
Indicators = abx_body_abx_body_indicators_s,
FirstDetected = abx_body_abx_body_first_detected_t
| project TimeGenerated, CompromisedAccount, CaseId, CaseSeverity, CaseStatus, Indicators, FirstDetected
Declared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- Commit
7ca9800↗- Source identifier
da243bf4-382b-46b9-9b4d-ce6ffe9e7beb
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC