CYFIRMA - Social and Public Exposure - Exposure of PIICII in Public Domain Rule

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Id	52d71822-41e4-4c21-b36f-400294f2b43a
Rulename	CYFIRMA - Social and Public Exposure - Exposure of PII/CII in Public Domain Rule
Description	“This analytics rule detects high severity alerts from CYFIRMA indicating exposure of Personally Identifiable Information (PII) or Confidential Information (CII) in public or unsecured sources. Such leaks may include email addresses, credentials, phone numbers, or other sensitive personal or organizational data. These exposures can lead to identity theft, phishing, credential compromise, or regulatory non-compliance. Investigate promptly and initiate remediation steps including user notifications and credential resets.”
Severity	High
Tactics	InitialAccess Exfiltration Collection CredentialAccess
Techniques	T1078 T1003 T1213 T1537
Required data connectors	CyfirmaDigitalRiskAlertsConnector
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/Cyfirma%20Digital%20Risk/Analytic%20Rules/SPEExposureOfPIICIIHighRule.yaml
Version	1.0.1
Arm template	52d71822-41e4-4c21-b36f-400294f2b43a.json

KQL

// High severity - Social and Public Exposure - Exposure of PII/CII in Public Domain
let timeFrame = 5m;
CyfirmaSPEPIIAndCIIAlerts_CL
| where severity == 'Critical' and TimeGenerated between (ago(timeFrame) .. now())
| extend
    Description=description,
    FirstSeen=first_seen,
    LastSeen=last_seen,
    RiskScore=risk_score,
    AlertUID=alert_uid,
    UID=uid,
    AssetType=asset_type,
    AssetValue=signature,
    Source=source,
    Impact=impact,
    Recommendation=recommendation,
    PostedDate=posted_date,
    ProviderName='CYFIRMA',
    ProductName='DeCYFIR/DeTCT',
    AlertTitle=Alert_title
| project
    TimeGenerated,
    Description,
    RiskScore,
    FirstSeen,
    LastSeen,
    AlertUID,
    UID,
    AssetType,
    AssetValue,
    Source,
    Impact,
    Recommendation,
    PostedDate,
    ProductName,
    ProviderName,
    AlertTitle

YAML

status: Available
triggerThreshold: 0
relevantTechniques:
- T1078
- T1003
- T1213
- T1537
queryPeriod: 5m
tactics:
- InitialAccess
- Exfiltration
- Collection
- CredentialAccess
name: CYFIRMA - Social and Public Exposure - Exposure of PII/CII in Public Domain Rule
customDetails:
  Impact: Impact
  FirstSeen: FirstSeen
  Description: Description
  Source: Source
  LastSeen: LastSeen
  UID: UID
  TimeGenerated: TimeGenerated
  Recommendation: Recommendation
  AssetType: AssetType
  AlertUID: AlertUID
  RiskScore: RiskScore
  AssetValue: AssetValue
description: |
  "This analytics rule detects high severity alerts from CYFIRMA indicating exposure of Personally Identifiable Information (PII) or Confidential Information (CII) in public or unsecured sources. 
  Such leaks may include email addresses, credentials, phone numbers, or other sensitive personal or organizational data. 
  These exposures can lead to identity theft, phishing, credential compromise, or regulatory non-compliance. 
  Investigate promptly and initiate remediation steps including user notifications and credential resets." 
eventGroupingSettings:
  aggregationKind: AlertPerResult
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Digital%20Risk/Analytic%20Rules/SPEExposureOfPIICIIHighRule.yaml
kind: Scheduled
alertDetailsOverride:
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: ProviderName
    value: ProviderName
  alertDescriptionFormat: '{{Description}} '
  alertDisplayNameFormat: 'CYFIRMA - High Severity: Exposure of PII/CII in Public Domain - {{AlertTitle}} '
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: false
    lookbackDuration: PT5H
  createIncident: true
triggerOperator: gt
id: 52d71822-41e4-4c21-b36f-400294f2b43a
severity: High
version: 1.0.1
requiredDataConnectors:
- connectorId: CyfirmaDigitalRiskAlertsConnector
  dataTypes:
  - CyfirmaSPEPIIAndCIIAlerts_CL
query: |
  // High severity - Social and Public Exposure - Exposure of PII/CII in Public Domain
  let timeFrame = 5m;
  CyfirmaSPEPIIAndCIIAlerts_CL
  | where severity == 'Critical' and TimeGenerated between (ago(timeFrame) .. now())
  | extend
      Description=description,
      FirstSeen=first_seen,
      LastSeen=last_seen,
      RiskScore=risk_score,
      AlertUID=alert_uid,
      UID=uid,
      AssetType=asset_type,
      AssetValue=signature,
      Source=source,
      Impact=impact,
      Recommendation=recommendation,
      PostedDate=posted_date,
      ProviderName='CYFIRMA',
      ProductName='DeCYFIR/DeTCT',
      AlertTitle=Alert_title
  | project
      TimeGenerated,
      Description,
      RiskScore,
      FirstSeen,
      LastSeen,
      AlertUID,
      UID,
      AssetType,
      AssetValue,
      Source,
      Impact,
      Recommendation,
      PostedDate,
      ProductName,
      ProviderName,
      AlertTitle
queryFrequency: 5m

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/52d71822-41e4-4c21-b36f-400294f2b43a')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/52d71822-41e4-4c21-b36f-400294f2b43a')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "{{Description}} ",
          "alertDisplayNameFormat": "CYFIRMA - High Severity: Exposure of PII/CII in Public Domain - {{AlertTitle}} ",
          "alertDynamicProperties": [
            {
              "alertProperty": "ProductName",
              "value": "ProductName"
            },
            {
              "alertProperty": "ProviderName",
              "value": "ProviderName"
            }
          ]
        },
        "alertRuleTemplateName": "52d71822-41e4-4c21-b36f-400294f2b43a",
        "customDetails": {
          "AlertUID": "AlertUID",
          "AssetType": "AssetType",
          "AssetValue": "AssetValue",
          "Description": "Description",
          "FirstSeen": "FirstSeen",
          "Impact": "Impact",
          "LastSeen": "LastSeen",
          "Recommendation": "Recommendation",
          "RiskScore": "RiskScore",
          "Source": "Source",
          "TimeGenerated": "TimeGenerated",
          "UID": "UID"
        },
        "description": "\"This analytics rule detects high severity alerts from CYFIRMA indicating exposure of Personally Identifiable Information (PII) or Confidential Information (CII) in public or unsecured sources. \nSuch leaks may include email addresses, credentials, phone numbers, or other sensitive personal or organizational data. \nThese exposures can lead to identity theft, phishing, credential compromise, or regulatory non-compliance. \nInvestigate promptly and initiate remediation steps including user notifications and credential resets.\" \n",
        "displayName": "CYFIRMA - Social and Public Exposure - Exposure of PII/CII in Public Domain Rule",
        "enabled": true,
        "entityMappings": null,
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": false,
            "lookbackDuration": "PT5H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Digital%20Risk/Analytic%20Rules/SPEExposureOfPIICIIHighRule.yaml",
        "query": "// High severity - Social and Public Exposure - Exposure of PII/CII in Public Domain\nlet timeFrame = 5m;\nCyfirmaSPEPIIAndCIIAlerts_CL\n| where severity == 'Critical' and TimeGenerated between (ago(timeFrame) .. now())\n| extend\n    Description=description,\n    FirstSeen=first_seen,\n    LastSeen=last_seen,\n    RiskScore=risk_score,\n    AlertUID=alert_uid,\n    UID=uid,\n    AssetType=asset_type,\n    AssetValue=signature,\n    Source=source,\n    Impact=impact,\n    Recommendation=recommendation,\n    PostedDate=posted_date,\n    ProviderName='CYFIRMA',\n    ProductName='DeCYFIR/DeTCT',\n    AlertTitle=Alert_title\n| project\n    TimeGenerated,\n    Description,\n    RiskScore,\n    FirstSeen,\n    LastSeen,\n    AlertUID,\n    UID,\n    AssetType,\n    AssetValue,\n    Source,\n    Impact,\n    Recommendation,\n    PostedDate,\n    ProductName,\n    ProviderName,\n    AlertTitle\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Collection",
          "CredentialAccess",
          "Exfiltration",
          "InitialAccess"
        ],
        "techniques": [
          "T1003",
          "T1078",
          "T1213",
          "T1537"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}