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%20Brand%20Intelligence/Analytic%20Rules/BISocialMediaHandlerMediumRule.yaml
Version	1.0.1
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

incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: PT5H
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: false
  createIncident: true
name: CYFIRMA - Brand Intelligence - Social Media Handle Impersonation Detected Medium Rule
triggerOperator: gt
kind: Scheduled
queryFrequency: 5m
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."
id: 710f4755-490d-4fa7-aef0-43b5a66edc7b
triggerThreshold: 0
queryPeriod: 5m
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
version: 1.0.1
customDetails:
  Impact: Impact
  LastSeen: LastSeen
  Description: Description
  TimeGenerated: TimeGenerated
  SourceSype: SourceSype
  AssetType: AssetType
  RiskScore: RiskScore
  AlertUID: AlertUID
  UID: UID
  AssetValue: AssetValue
  FirstSeen: FirstSeen
  Recommendation: Recommendation
status: Available
eventGroupingSettings:
  aggregationKind: AlertPerResult
severity: Medium
requiredDataConnectors:
- connectorId: CyfirmaBrandIntelligenceAlertsDC
  dataTypes:
  - CyfirmaBISocialHandlersAlerts_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Brand%20Intelligence/Analytic%20Rules/BISocialMediaHandlerMediumRule.yaml
alertDetailsOverride:
  alertDescriptionFormat: '{{Description}} '
  alertDisplayNameFormat: 'CYFIRMA - Medium Severity Social Media Handle Impersonation Detected - {{AssetType}}  :  {{AssetValue}} '
  alertDynamicProperties:
  - value: ProductName
    alertProperty: ProductName
  - value: ProviderName
    alertProperty: ProviderName
relevantTechniques:
- T1589.003
- T1591.002
- T1585.001
- T1566.002
tactics:
- Reconnaissance
- ResourceDevelopment
- InitialAccess

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%20Brand%20Intelligence/Analytic%20Rules/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": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}