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Cognni Incidents for Medium Sensitivity Legal Information

This is a third-party alert feed, not a detection over modeled telemetry. The vendor product raised the finding; this rule forwards it into the SIEM. It is searchable for reference but is excluded from the detection-rule browse and the ATT&CK coverage matrix.

Status
available
Severity
medium
Time window
5h
Source
github.com/Azure/Azure-Sentinel

'Display incidents in which medium sensitivity legal information was placed at risk by user sharing.'

MITRE ATT&CK coverage

TacticTechniques
CollectionT1530 Data from Cloud Storage

Rule body kusto

id: db750607-d48f-4aef-b238-085f4a9882f1
name: Cognni Incidents for Medium Sensitivity Legal Information
description: |
  'Display incidents in which medium sensitivity legal information was placed at risk by user sharing.'
severity: Medium
requiredDataConnectors:
  - connectorId: CognniSentinelDataConnector
    dataTypes:
      - CognniIncidents_CL
queryFrequency: 5h
queryPeriod: 5h
triggerOperator: gt
triggerThreshold: 0
status: Available
tactics:
  - Collection
relevantTechniques:
  - T1530
query: |
  let mediumRisk = 2;
  let legal = 'Legal Information';
  CognniIncidents_CL 
  | where Severity == mediumRisk
  | where informationType_s == legal
  | where TimeGenerated >= ago(5h)
  | extend AccountCustomEntity = userId_s
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: FullName
        columnName: AccountCustomEntity
version: 1.0.0
kind: Scheduled

Stages and Predicates

Parameters

let mediumRisk = 2;
let legal = 'Legal Information';

Stage 1: source

CognniIncidents_CL

Stage 2: where

| where Severity == mediumRisk

Stage 3: where

| where informationType_s == legal

Stage 4: where

| where TimeGenerated >= ago(5h)

Stage 5: extend

| extend AccountCustomEntity = userId_s

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
Severityeq
  • 2 transforms: cased
informationType_seq
  • Legal Information transforms: cased

Output fields

Fields the rule emits when it matches. Chronicle authors list these in the outcome block; they appear on the detection and $risk_score drives alerting. Sentinel / Defender XDR rules build them up through project / summarize / extend stages. Sentinel maps these into alert fields via entityMappings and customDetails; Defender XDR custom detections surface them as alert fields directly.

FieldSource
AccountCustomEntityextend