GTI - Data Leak Alert Detected | Microsoft Sentinel Analytic Rules

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Id	d4e5f6a7-b8c9-0123-defa-234567890124
Rulename	GTI - Data Leak Alert Detected
Description	Triggers an incident when a GTI Relevance System Alert of type data_leak is ingested. Data Leak alerts indicate that sensitive organisational data (credentials, PII, intellectual property, source code, databases, etc.) has been found exposed on the dark web, paste sites, or underground forums and matches your organisation profile. Each unique Alert ID is grouped into a single incident.
Severity	High
Tactics	Exfiltration Impact CredentialAccess Collection
Techniques	T1567 T1530 T1552 T1485
Required data connectors	GoogleThreatIntelligenceRelevanceSystemAlertsAPI
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Google%20Threat%20Intelligence/Analytic%20Rules/RelevanceSystemAlerts/GTI_DataLeakAlerts.yaml
Version	1.0.0
Arm template	d4e5f6a7-b8c9-0123-defa-234567890124.json

KQL

GTIRelevanceSystemAlerts
| where DetailType == "data_leak"
| project
    TimeGenerated,
    AlertId,
    AlertName          = DisplayName,
    AlertState         = State,
    LeakSeverity       = DataLeakSeverity,
    DiscoveryDocuments = DataLeakDiscoveryDocumentIds,
    PriorityLevel,
    PriorityReasoning,
    SeverityLevel,
    SeverityConfidence,
    SeverityReasoning,
    RelevanceLevel,
    RelevanceConfidence,
    RelevanceReasoning,
    FindingCount,
    AiSummary,
    CommonThemes       = RelevanceEvidenceCommonThemes,
    DistinctThemes     = RelevanceEvidenceDistinctThemes,
    AuditCreateTime,
    AuditUpdateTime

YAML

id: d4e5f6a7-b8c9-0123-defa-234567890124
severity: High
queryPeriod: 5m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Google%20Threat%20Intelligence/Analytic%20Rules/RelevanceSystemAlerts/GTI_DataLeakAlerts.yaml
eventGroupingSettings:
  aggregationKind: AlertPerResult
version: 1.0.0
kind: Scheduled
requiredDataConnectors:
- dataTypes:
  - RelevanceSystemAlerts_CL
  connectorId: GoogleThreatIntelligenceRelevanceSystemAlertsAPI
triggerThreshold: 0
status: Available
relevantTechniques:
- T1567
- T1530
- T1552
- T1485
customDetails:
  AlertState: AlertState
  PriorityLevel: PriorityLevel
  SeverityLevel: SeverityLevel
  AlertId: AlertId
  LeakSeverity: LeakSeverity
  RelevanceLevel: RelevanceLevel
  FindingCount: FindingCount
name: GTI - Data Leak Alert Detected
query: |
  GTIRelevanceSystemAlerts
  | where DetailType == "data_leak"
  | project
      TimeGenerated,
      AlertId,
      AlertName          = DisplayName,
      AlertState         = State,
      LeakSeverity       = DataLeakSeverity,
      DiscoveryDocuments = DataLeakDiscoveryDocumentIds,
      PriorityLevel,
      PriorityReasoning,
      SeverityLevel,
      SeverityConfidence,
      SeverityReasoning,
      RelevanceLevel,
      RelevanceConfidence,
      RelevanceReasoning,
      FindingCount,
      AiSummary,
      CommonThemes       = RelevanceEvidenceCommonThemes,
      DistinctThemes     = RelevanceEvidenceDistinctThemes,
      AuditCreateTime,
      AuditUpdateTime
queryFrequency: 5m
alertDetailsOverride:
  alertDisplayNameFormat: 'GTI Data Leak: {{AlertName}}'
  alertDescriptionFormat: |
    Leak Severity: {{LeakSeverity}} | Priority: {{PriorityLevel}}

    Summary: {{AiSummary}}
description: |
  Triggers an incident when a GTI Relevance System Alert of type data_leak is ingested.
  Data Leak alerts indicate that sensitive organisational data (credentials, PII, intellectual property,
  source code, databases, etc.) has been found exposed on the dark web, paste sites, or underground
  forums and matches your organisation profile.
  Each unique Alert ID is grouped into a single incident.
tactics:
- Exfiltration
- Impact
- CredentialAccess
- Collection
triggerOperator: gt
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    matchingMethod: Selected
    lookbackDuration: P5D
    groupByCustomDetails:
    - AlertId

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/d4e5f6a7-b8c9-0123-defa-234567890124')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/d4e5f6a7-b8c9-0123-defa-234567890124')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "Leak Severity: {{LeakSeverity}} | Priority: {{PriorityLevel}}\n\nSummary: {{AiSummary}}\n",
          "alertDisplayNameFormat": "GTI Data Leak: {{AlertName}}"
        },
        "alertRuleTemplateName": "d4e5f6a7-b8c9-0123-defa-234567890124",
        "customDetails": {
          "AlertId": "AlertId",
          "AlertState": "AlertState",
          "FindingCount": "FindingCount",
          "LeakSeverity": "LeakSeverity",
          "PriorityLevel": "PriorityLevel",
          "RelevanceLevel": "RelevanceLevel",
          "SeverityLevel": "SeverityLevel"
        },
        "description": "Triggers an incident when a GTI Relevance System Alert of type data_leak is ingested.\nData Leak alerts indicate that sensitive organisational data (credentials, PII, intellectual property,\nsource code, databases, etc.) has been found exposed on the dark web, paste sites, or underground\nforums and matches your organisation profile.\nEach unique Alert ID is grouped into a single incident.\n",
        "displayName": "GTI - Data Leak Alert Detected",
        "enabled": true,
        "entityMappings": null,
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "groupByCustomDetails": [
              "AlertId"
            ],
            "lookbackDuration": "P5D",
            "matchingMethod": "Selected",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Google%20Threat%20Intelligence/Analytic%20Rules/RelevanceSystemAlerts/GTI_DataLeakAlerts.yaml",
        "query": "GTIRelevanceSystemAlerts\n| where DetailType == \"data_leak\"\n| project\n    TimeGenerated,\n    AlertId,\n    AlertName          = DisplayName,\n    AlertState         = State,\n    LeakSeverity       = DataLeakSeverity,\n    DiscoveryDocuments = DataLeakDiscoveryDocumentIds,\n    PriorityLevel,\n    PriorityReasoning,\n    SeverityLevel,\n    SeverityConfidence,\n    SeverityReasoning,\n    RelevanceLevel,\n    RelevanceConfidence,\n    RelevanceReasoning,\n    FindingCount,\n    AiSummary,\n    CommonThemes       = RelevanceEvidenceCommonThemes,\n    DistinctThemes     = RelevanceEvidenceDistinctThemes,\n    AuditCreateTime,\n    AuditUpdateTime\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Collection",
          "CredentialAccess",
          "Exfiltration",
          "Impact"
        ],
        "techniques": [
          "T1485",
          "T1530",
          "T1552",
          "T1567"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}