CYFIRMA - Brand Intelligence - Social Media Handle Impersonation Detected Medium Rule

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Id	710f4755-490d-4fa7-aef0-43b5a66edc7b
Rulename	CYFIRMA - Brand Intelligence - Social Media Handle Impersonation Detected Medium Rule
Description	“Detects high-severity alerts related to impersonation of official social media handles associated with your brand. These spoofed accounts may be used for phishing, disinformation, or fraud campaigns, posing significant reputational and security risks.”
Severity	Medium
Tactics	Reconnaissance ResourceDevelopment InitialAccess
Techniques	T1589.003 T1591.002 T1585.001 T1566.002
Required data connectors	CyfirmaBrandIntelligenceAlertsDC
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 Brand Intelligence/Analytic Rules/BISocialMediaHandlerMediumRule.yaml
Version	1.0.0
Arm template	710f4755-490d-4fa7-aef0-43b5a66edc7b.json

KQL

// Medium severity - Social Media Handle Impersonation
let timeFrame = 5m;
CyfirmaBISocialHandlersAlerts_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=asset_value,
      Impact=impact,
      Recommendation=recommendation,
      SourceSype=source_type,
      ProviderName="CYFIRMA",
      ProductName="DeCYFIR/DeTCT"
  | project 
      TimeGenerated,
      Description,
      RiskScore,
      FirstSeen,
      LastSeen,
      AlertUID,
      UID,
      AssetType,
      AssetValue,
      Impact,
      Recommendation,
      SourceSype,
      ProductName,
      ProviderName

YAML

tactics:
- Reconnaissance
- ResourceDevelopment
- InitialAccess
name: CYFIRMA - Brand Intelligence - Social Media Handle Impersonation Detected Medium Rule
id: 710f4755-490d-4fa7-aef0-43b5a66edc7b
requiredDataConnectors:
- connectorId: CyfirmaBrandIntelligenceAlertsDC
  dataTypes:
  - CyfirmaBISocialHandlersAlerts_CL
query: |
  // Medium severity - Social Media Handle Impersonation
  let timeFrame = 5m;
  CyfirmaBISocialHandlersAlerts_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=asset_value,
        Impact=impact,
        Recommendation=recommendation,
        SourceSype=source_type,
        ProviderName="CYFIRMA",
        ProductName="DeCYFIR/DeTCT"
    | project 
        TimeGenerated,
        Description,
        RiskScore,
        FirstSeen,
        LastSeen,
        AlertUID,
        UID,
        AssetType,
        AssetValue,
        Impact,
        Recommendation,
        SourceSype,
        ProductName,
        ProviderName  
eventGroupingSettings:
  aggregationKind: AlertPerResult
relevantTechniques:
- T1589.003
- T1591.002
- T1585.001
- T1566.002
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    matchingMethod: AllEntities
    reopenClosedIncident: false
    lookbackDuration: 5h
    enabled: false
description: |
  "Detects high-severity alerts related to impersonation of official social media handles associated with your brand. 
  These spoofed accounts may be used for phishing, disinformation, or fraud campaigns, posing significant reputational and security risks."  
triggerOperator: gt
queryPeriod: 5m
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma Brand Intelligence/Analytic Rules/BISocialMediaHandlerMediumRule.yaml
version: 1.0.0
alertDetailsOverride:
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: ProviderName
    value: ProviderName
  alertDisplayNameFormat: 'CYFIRMA - Medium Severity Social Media Handle Impersonation Detected - {{AssetType}}  :  {{AssetValue}} '
  alertDescriptionFormat: '{{Description}} '
triggerThreshold: 0
queryFrequency: 5m
kind: Scheduled
status: Available
customDetails:
  Impact: Impact
  AssetType: AssetType
  TimeGenerated: TimeGenerated
  Recommendation: Recommendation
  Description: Description
  AlertUID: AlertUID
  UID: UID
  LastSeen: LastSeen
  SourceSype: SourceSype
  RiskScore: RiskScore
  FirstSeen: FirstSeen
  AssetValue: AssetValue

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/710f4755-490d-4fa7-aef0-43b5a66edc7b')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/710f4755-490d-4fa7-aef0-43b5a66edc7b')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "{{Description}} ",
          "alertDisplayNameFormat": "CYFIRMA - Medium Severity Social Media Handle Impersonation Detected - {{AssetType}}  :  {{AssetValue}} ",
          "alertDynamicProperties": [
            {
              "alertProperty": "ProductName",
              "value": "ProductName"
            },
            {
              "alertProperty": "ProviderName",
              "value": "ProviderName"
            }
          ]
        },
        "alertRuleTemplateName": "710f4755-490d-4fa7-aef0-43b5a66edc7b",
        "customDetails": {
          "AlertUID": "AlertUID",
          "AssetType": "AssetType",
          "AssetValue": "AssetValue",
          "Description": "Description",
          "FirstSeen": "FirstSeen",
          "Impact": "Impact",
          "LastSeen": "LastSeen",
          "Recommendation": "Recommendation",
          "RiskScore": "RiskScore",
          "SourceSype": "SourceSype",
          "TimeGenerated": "TimeGenerated",
          "UID": "UID"
        },
        "description": "\"Detects high-severity alerts related to impersonation of official social media handles associated with your brand. \nThese spoofed accounts may be used for phishing, disinformation, or fraud campaigns, posing significant reputational and security risks.\"\n",
        "displayName": "CYFIRMA - Brand Intelligence - Social Media Handle Impersonation Detected Medium 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 Brand Intelligence/Analytic Rules/BISocialMediaHandlerMediumRule.yaml",
        "query": "// Medium severity - Social Media Handle Impersonation\nlet timeFrame = 5m;\nCyfirmaBISocialHandlersAlerts_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=asset_value,\n      Impact=impact,\n      Recommendation=recommendation,\n      SourceSype=source_type,\n      ProviderName=\"CYFIRMA\",\n      ProductName=\"DeCYFIR/DeTCT\"\n  | project \n      TimeGenerated,\n      Description,\n      RiskScore,\n      FirstSeen,\n      LastSeen,\n      AlertUID,\n      UID,\n      AssetType,\n      AssetValue,\n      Impact,\n      Recommendation,\n      SourceSype,\n      ProductName,\n      ProviderName\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [
          "T1589.003",
          "T1591.002",
          "T1585.001",
          "T1566.002"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess",
          "Reconnaissance",
          "ResourceDevelopment"
        ],
        "techniques": [
          "T1566",
          "T1585",
          "T1589",
          "T1591"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}