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Analytic rule catalog

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

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Idb484f224-687f-4406-af8a-ff019f9f2c24
RulenameCYFIRMA - 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.”
SeverityMedium
TacticsInitialAccess
Exfiltration
Collection
CredentialAccess
TechniquesT1078
T1003
T1213
T1537
Required data connectorsCyfirmaDigitalRiskAlertsConnector
KindScheduled
Query frequency5m
Query period5m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Digital%20Risk/Analytic%20Rules/SPEExposureOfPIICIIMediumRule.yaml
Version1.0.1
Arm templateb484f224-687f-4406-af8a-ff019f9f2c24.json
Deploy To Azure
// 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

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

{
  "$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"
    }
  ]
}