↳ GitHub sourceAnalytics ruleMedium
Abnormal Security - Vendor compromise case detected
Description
'Creates an incident when Abnormal Security opens a vendor case indicating a
compromised or impersonated vendor domain (vendor email compromise). Surfaces the
vendor domain and Abnormal insights so analysts can review related correspondence.'
- 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_VENDOR_CASE_CL
| where isnotempty(abx_body_abx_body_vendorCaseId_g)
// Collapse to one row per vendor 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_vendorCaseId_g
| extend
VendorDomain = abx_body_abx_body_vendorDomain_s,
Insights = abx_body_abx_body_insights_s,
FirstObserved = abx_body_abx_body_firstObservedTime_t
| project TimeGenerated, VendorDomain, CaseId, Insights, FirstObserved
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
b15ea4c9-58da-44d8-90e4-6591d947e7e3
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC