Detection rules › Kusto

Cognni Incidents for Highly Sensitive 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: high
Time window: 5h
Source: github.com/Azure/Azure-Sentinel

'Display incidents in which highly sensitive legal information was placed at risk by user sharing.'

MITRE ATT&CK coverage

Tactic	Techniques
Collection	`T1530` Data from Cloud Storage

Rule body

id: 4f45f43b-3a4b-491b-9cbe-d649603384aa
name: Cognni Incidents for Highly Sensitive Legal Information
description: |
  'Display incidents in which highly sensitive legal information was placed at risk by user sharing.'
severity: High
requiredDataConnectors:
  - connectorId: CognniSentinelDataConnector
    dataTypes:
      - CognniIncidents_CL
queryFrequency: 5h
queryPeriod: 5h
triggerOperator: gt
triggerThreshold: 0
status: Available
tactics:
  - Collection
relevantTechniques:
  - T1530
query: |
  let highRisk = 3;
  let legal = 'Legal Information';
  CognniIncidents_CL 
  | where Severity == highRisk
  | 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 highRisk = 3;
let legal = 'Legal Information';

Stage 1: `source`

CognniIncidents_CL

Stage 2: `where`

| where Severity == highRisk

Stage 3: `where`

| where informationType_s == legal

Stage 4: `where`

| where TimeGenerated >= ago(5h)

Stage 5: `extend`

| extend AccountCustomEntity = userId_s

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`Severity`	eq	`3`	`field:"Severity" kind:eq value:"3"`
`informationType_s`	eq	`Legal Information`	`field:"informationType_s" kind:eq value:"Legal Information"`

Output fields

These fields are emitted when the rule matches.

Field	Source
`AccountCustomEntity`	`extend`