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

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Id	b484f224-687f-4406-af8a-ff019f9f2c24
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	Medium
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/SPEExposureOfPIICIIMediumRule.yaml
Version	1.0.1
Arm template	b484f224-687f-4406-af8a-ff019f9f2c24.json

KQL

// Medium severity - Social and Public Exposure - Exposure of PII/CII in Public Domain
let timeFrame = 5m;
CyfirmaSPEPIIAndCIIAlerts_CL
| where severity == 'High' 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

incidentConfiguration:
  groupingConfiguration:
    matchingMethod: AllEntities
    enabled: false
    lookbackDuration: PT5H
    reopenClosedIncident: false
  createIncident: true
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Digital%20Risk/Analytic%20Rules/SPEExposureOfPIICIIMediumRule.yaml
triggerThreshold: 0
id: b484f224-687f-4406-af8a-ff019f9f2c24
kind: Scheduled
queryPeriod: 5m
eventGroupingSettings:
  aggregationKind: AlertPerResult
tactics:
- InitialAccess
- Exfiltration
- Collection
- CredentialAccess
queryFrequency: 5m
alertDetailsOverride:
  alertDescriptionFormat: '{{Description}} '
  alertDisplayNameFormat: 'CYFIRMA - Medium Severity: Exposure of PII/CII in Public Domain - {{AlertTitle}} '
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: ProviderName
    value: ProviderName
severity: Medium
name: CYFIRMA - Social and Public Exposure - Exposure of PII/CII in Public Domain Rule
customDetails:
  LastSeen: LastSeen
  RiskScore: RiskScore
  UID: UID
  FirstSeen: FirstSeen
  AssetValue: AssetValue
  Recommendation: Recommendation
  Impact: Impact
  AssetType: AssetType
  Description: Description
  AlertUID: AlertUID
  TimeGenerated: TimeGenerated
  Source: Source
requiredDataConnectors:
- connectorId: CyfirmaDigitalRiskAlertsConnector
  dataTypes:
  - CyfirmaSPEPIIAndCIIAlerts_CL
version: 1.0.1
relevantTechniques:
- T1078
- T1003
- T1213
- T1537
status: Available
query: |
  // Medium severity - Social and Public Exposure - Exposure of PII/CII in Public Domain
  let timeFrame = 5m;
  CyfirmaSPEPIIAndCIIAlerts_CL
  | where severity == 'High' 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
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."

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/b484f224-687f-4406-af8a-ff019f9f2c24')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/b484f224-687f-4406-af8a-ff019f9f2c24')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "{{Description}} ",
          "alertDisplayNameFormat": "CYFIRMA - Medium Severity: Exposure of PII/CII in Public Domain - {{AlertTitle}} ",
          "alertDynamicProperties": [
            {
              "alertProperty": "ProductName",
              "value": "ProductName"
            },
            {
              "alertProperty": "ProviderName",
              "value": "ProviderName"
            }
          ]
        },
        "alertRuleTemplateName": "b484f224-687f-4406-af8a-ff019f9f2c24",
        "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/SPEExposureOfPIICIIMediumRule.yaml",
        "query": "// Medium severity - Social and Public Exposure - Exposure of PII/CII in Public Domain\nlet timeFrame = 5m;\nCyfirmaSPEPIIAndCIIAlerts_CL\n| where severity == 'High' 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": "Medium",
        "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"
    }
  ]
}