CYFIRMA - Brand Intelligence - ExecutivePeople Impersonation High Rule

Back


Id	159d26a1-591c-4f70-b1ca-2843c881aaec
Rulename	CYFIRMA - Brand Intelligence - Executive/People Impersonation High Rule
Description	“This rule detects potential impersonation of executive or high-profile individuals across digital platforms such as social media. Such impersonation can be used to mislead stakeholders, perform social engineering attacks, or cause reputational damage to the organization. Timely detection is crucial to assess risk and take down malicious profiles to protect brand and executive identity.”
Severity	High
Tactics	Reconnaissance ResourceDevelopment InitialAccess
Techniques	T1589.003 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/BIExecutivePeopleImpersonationHighRule.yaml
Version	1.0.0
Arm template	159d26a1-591c-4f70-b1ca-2843c881aaec.json

KQL

// High severity - Executive/People Impersonation
let timeFrame = 5m;
CyfirmaBIExecutivePeopleAlerts_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=asset_value,
    Impact=impact,
    Recommendation=recommendation,
    PostedDate=posted_date,
    ProviderName='CYFIRMA',
    ProductName='DeCYFIR/DeTCT'
| project
    TimeGenerated,
    Description,
    RiskScore,
    FirstSeen,
    LastSeen,
    AlertUID,
    UID,
    AssetType,
    AssetValue,
    Impact,
    Recommendation,
    PostedDate,
    ProductName,
    ProviderName

YAML

tactics:
- Reconnaissance
- ResourceDevelopment
- InitialAccess
name: CYFIRMA - Brand Intelligence - Executive/People Impersonation High Rule
id: 159d26a1-591c-4f70-b1ca-2843c881aaec
requiredDataConnectors:
- connectorId: CyfirmaBrandIntelligenceAlertsDC
  dataTypes:
  - CyfirmaBIExecutivePeopleAlerts_CL
query: |
  // High severity - Executive/People Impersonation
  let timeFrame = 5m;
  CyfirmaBIExecutivePeopleAlerts_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=asset_value,
      Impact=impact,
      Recommendation=recommendation,
      PostedDate=posted_date,
      ProviderName='CYFIRMA',
      ProductName='DeCYFIR/DeTCT'
  | project
      TimeGenerated,
      Description,
      RiskScore,
      FirstSeen,
      LastSeen,
      AlertUID,
      UID,
      AssetType,
      AssetValue,
      Impact,
      Recommendation,
      PostedDate,
      ProductName,
      ProviderName  
eventGroupingSettings:
  aggregationKind: AlertPerResult
relevantTechniques:
- T1589.003
- T1585.001
- T1566.002
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    matchingMethod: AllEntities
    reopenClosedIncident: false
    lookbackDuration: 5h
    enabled: false
description: |
  "This rule detects potential impersonation of executive or high-profile individuals across digital platforms such as social media. 
  Such impersonation can be used to mislead stakeholders, perform social engineering attacks, or cause reputational damage to the organization. 
  Timely detection is crucial to assess risk and take down malicious profiles to protect brand and executive identity."  
triggerOperator: gt
queryPeriod: 5m
severity: High
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma Brand Intelligence/Analytic Rules/BIExecutivePeopleImpersonationHighRule.yaml
version: 1.0.0
alertDetailsOverride:
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: ProviderName
    value: ProviderName
  alertDisplayNameFormat: 'CYFIRMA - High Severity Alert - Executive Impersonation - Suspicious Social Media Account Detected - {{AssetValue}} '
  alertDescriptionFormat: '{{Description}} '
triggerThreshold: 0
queryFrequency: 5m
kind: Scheduled
status: Available
customDetails:
  Impact: Impact
  AssetType: AssetType
  Description: Description
  AssetValue: AssetValue
  TimeGenerated: TimeGenerated
  PostedDate: PostedDate
  AlertUID: AlertUID
  Recommendation: Recommendation
  UID: UID
  LastSeen: LastSeen
  RiskScore: RiskScore
  FirstSeen: FirstSeen

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/159d26a1-591c-4f70-b1ca-2843c881aaec')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/159d26a1-591c-4f70-b1ca-2843c881aaec')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "{{Description}} ",
          "alertDisplayNameFormat": "CYFIRMA - High Severity Alert - Executive Impersonation - Suspicious Social Media Account Detected - {{AssetValue}} ",
          "alertDynamicProperties": [
            {
              "alertProperty": "ProductName",
              "value": "ProductName"
            },
            {
              "alertProperty": "ProviderName",
              "value": "ProviderName"
            }
          ]
        },
        "alertRuleTemplateName": "159d26a1-591c-4f70-b1ca-2843c881aaec",
        "customDetails": {
          "AlertUID": "AlertUID",
          "AssetType": "AssetType",
          "AssetValue": "AssetValue",
          "Description": "Description",
          "FirstSeen": "FirstSeen",
          "Impact": "Impact",
          "LastSeen": "LastSeen",
          "PostedDate": "PostedDate",
          "Recommendation": "Recommendation",
          "RiskScore": "RiskScore",
          "TimeGenerated": "TimeGenerated",
          "UID": "UID"
        },
        "description": "\"This rule detects potential impersonation of executive or high-profile individuals across digital platforms such as social media. \nSuch impersonation can be used to mislead stakeholders, perform social engineering attacks, or cause reputational damage to the organization. \nTimely detection is crucial to assess risk and take down malicious profiles to protect brand and executive identity.\"\n",
        "displayName": "CYFIRMA - Brand Intelligence - Executive/People Impersonation High 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/BIExecutivePeopleImpersonationHighRule.yaml",
        "query": "// High severity - Executive/People Impersonation\nlet timeFrame = 5m;\nCyfirmaBIExecutivePeopleAlerts_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=asset_value,\n    Impact=impact,\n    Recommendation=recommendation,\n    PostedDate=posted_date,\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    PostedDate,\n    ProductName,\n    ProviderName\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [
          "T1589.003",
          "T1585.001",
          "T1566.002"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess",
          "Reconnaissance",
          "ResourceDevelopment"
        ],
        "techniques": [
          "T1566",
          "T1585",
          "T1589"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}