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

requiredDataConnectors:
- dataTypes:
  - RelevanceSystemAlerts_CL
  connectorId: GoogleThreatIntelligenceRelevanceSystemAlertsAPI
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Google%20Threat%20Intelligence/Analytic%20Rules/RelevanceSystemAlerts/GTI_DataLeakAlerts.yaml
version: 1.0.0
status: Available
alertDetailsOverride:
  alertDescriptionFormat: |
    Leak Severity: {{LeakSeverity}} | Priority: {{PriorityLevel}}

    Summary: {{AiSummary}}
  alertDisplayNameFormat: 'GTI Data Leak: {{AlertName}}'
incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: P5D
    matchingMethod: Selected
    reopenClosedIncident: false
    enabled: true
    groupByCustomDetails:
    - AlertId
  createIncident: true
queryFrequency: 5m
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
tactics:
- Exfiltration
- Impact
- CredentialAccess
- Collection
relevantTechniques:
- T1567
- T1530
- T1552
- T1485
id: d4e5f6a7-b8c9-0123-defa-234567890124
triggerThreshold: 0
triggerOperator: gt
name: GTI - Data Leak Alert Detected
queryPeriod: 5m
severity: High
customDetails:
  RelevanceLevel: RelevanceLevel
  LeakSeverity: LeakSeverity
  FindingCount: FindingCount
  AlertId: AlertId
  SeverityLevel: SeverityLevel
  AlertState: AlertState
  PriorityLevel: PriorityLevel
kind: Scheduled
eventGroupingSettings:
  aggregationKind: AlertPerResult
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.

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"
    }
  ]
}