Lookout - Critical Smishing and Phishing Alerts v2 | Microsoft Sentinel Analytic Rules

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Id	7a3e5f9b-4c8d-4a2e-9f1b-6d8e2a4c7f9e
Rulename	Lookout - Critical Smishing and Phishing Alerts (v2)
Description	Detects critical smishing (SMS phishing) and phishing alerts from Lookout Mobile Risk API v2. This rule identifies sophisticated social engineering attacks including CEO fraud, credential harvesting, and malicious link campaigns targeting mobile devices. Leverages enhanced v2 smishing detection capabilities for comprehensive mobile threat protection.
Severity	High
Tactics	InitialAccess CredentialAccess Collection Discovery
Techniques	T1660 T1417 T1423
Required data connectors	LookoutAPI
Kind	Scheduled
Query frequency	5m
Query period	15m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Lookout/Analytic%20Rules/LookoutSmishingAlertV2.yaml
Version	2.0.3
Arm template	7a3e5f9b-4c8d-4a2e-9f1b-6d8e2a4c7f9e.json

KQL

LookoutEvents
| where EventType == "SMISHING_ALERT"
| where SmishingAlertSeverity in ("CRITICAL", "HIGH")
| where SmishingAlertType in ("PHISHING_DETECTION", "FRAUD_DETECTION", "CREDENTIAL_HARVESTING")
| extend 
    AlertRiskScore = case(
        SmishingAlertSeverity == "CRITICAL", 10,
        SmishingAlertSeverity == "HIGH", 8,
        SmishingAlertSeverity == "MEDIUM", 5,
        SmishingAlertSeverity == "LOW", 2,
        1
    ),
    ThreatCategory = case(
        SmishingAlertType == "PHISHING_DETECTION", "Phishing",
        SmishingAlertType == "FRAUD_DETECTION", "Fraud",
        SmishingAlertType == "CREDENTIAL_HARVESTING", "Credential Theft",
        SmishingAlertType == "MALICIOUS_LINK", "Malicious Link",
        "Other"
    ),
    ImpersonationRisk = case(
        SmishingAlertDescription has "CEO" or SmishingAlertDescription has "executive", "Executive Impersonation",
        SmishingAlertDescription has "IT" or SmishingAlertDescription has "support", "IT Support Impersonation", 
        SmishingAlertDescription has "bank" or SmishingAlertDescription has "financial", "Financial Impersonation",
        SmishingAlertDescription has "delivery" or SmishingAlertDescription has "package", "Delivery Impersonation",
        "Generic Phishing"
    )
| extend DeviceRiskLevel = case(
    DeviceSecurityStatus == "THREATS_HIGH", "High",
    DeviceSecurityStatus == "THREATS_MEDIUM", "Medium", 
    DeviceSecurityStatus == "THREATS_LOW", "Low",
    "Unknown"
)
| extend CampaignIndicators = case(
    AlertRiskScore >= 8 and DeviceRiskLevel == "High", "Targeted Campaign",
    AlertRiskScore >= 6 and ImpersonationRisk != "Generic Phishing", "Sophisticated Attack",
    AlertRiskScore >= 5, "Coordinated Threat",
    "Isolated Incident"
)
| project
    TimeGenerated,
    EventId,
    SmishingAlertId,
    SmishingAlertType,
    SmishingAlertSeverity,
    SmishingAlertDescription,
    AlertRiskScore,
    ThreatCategory,
    ImpersonationRisk,
    CampaignIndicators,
    DeviceGuid,
    DevicePlatform,
    DeviceOSVersion,
    DeviceManufacturer,
    DeviceModel,
    DeviceEmailAddress,
    DeviceSecurityStatus,
    DeviceRiskLevel,
    TargetEmailAddress,
    TargetPlatform,
    ActorType,
    ActorGuid,
    ChangeType

YAML

suppressionDuration: PT1H
severity: High
tactics:
- InitialAccess
- CredentialAccess
- Collection
- Discovery
queryFrequency: 5m
id: 7a3e5f9b-4c8d-4a2e-9f1b-6d8e2a4c7f9e
query: |
  LookoutEvents
  | where EventType == "SMISHING_ALERT"
  | where SmishingAlertSeverity in ("CRITICAL", "HIGH")
  | where SmishingAlertType in ("PHISHING_DETECTION", "FRAUD_DETECTION", "CREDENTIAL_HARVESTING")
  | extend 
      AlertRiskScore = case(
          SmishingAlertSeverity == "CRITICAL", 10,
          SmishingAlertSeverity == "HIGH", 8,
          SmishingAlertSeverity == "MEDIUM", 5,
          SmishingAlertSeverity == "LOW", 2,
          1
      ),
      ThreatCategory = case(
          SmishingAlertType == "PHISHING_DETECTION", "Phishing",
          SmishingAlertType == "FRAUD_DETECTION", "Fraud",
          SmishingAlertType == "CREDENTIAL_HARVESTING", "Credential Theft",
          SmishingAlertType == "MALICIOUS_LINK", "Malicious Link",
          "Other"
      ),
      ImpersonationRisk = case(
          SmishingAlertDescription has "CEO" or SmishingAlertDescription has "executive", "Executive Impersonation",
          SmishingAlertDescription has "IT" or SmishingAlertDescription has "support", "IT Support Impersonation", 
          SmishingAlertDescription has "bank" or SmishingAlertDescription has "financial", "Financial Impersonation",
          SmishingAlertDescription has "delivery" or SmishingAlertDescription has "package", "Delivery Impersonation",
          "Generic Phishing"
      )
  | extend DeviceRiskLevel = case(
      DeviceSecurityStatus == "THREATS_HIGH", "High",
      DeviceSecurityStatus == "THREATS_MEDIUM", "Medium", 
      DeviceSecurityStatus == "THREATS_LOW", "Low",
      "Unknown"
  )
  | extend CampaignIndicators = case(
      AlertRiskScore >= 8 and DeviceRiskLevel == "High", "Targeted Campaign",
      AlertRiskScore >= 6 and ImpersonationRisk != "Generic Phishing", "Sophisticated Attack",
      AlertRiskScore >= 5, "Coordinated Threat",
      "Isolated Incident"
  )
  | project
      TimeGenerated,
      EventId,
      SmishingAlertId,
      SmishingAlertType,
      SmishingAlertSeverity,
      SmishingAlertDescription,
      AlertRiskScore,
      ThreatCategory,
      ImpersonationRisk,
      CampaignIndicators,
      DeviceGuid,
      DevicePlatform,
      DeviceOSVersion,
      DeviceManufacturer,
      DeviceModel,
      DeviceEmailAddress,
      DeviceSecurityStatus,
      DeviceRiskLevel,
      TargetEmailAddress,
      TargetPlatform,
      ActorType,
      ActorGuid,
      ChangeType
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: DeviceEmailAddress
  - identifier: Name
    columnName: TargetEmailAddress
  entityType: Account
- fieldMappings:
  - identifier: HostName
    columnName: DeviceGuid
  - identifier: OSFamily
    columnName: DevicePlatform
  - identifier: OSVersion
    columnName: DeviceOSVersion
  entityType: Host
- fieldMappings:
  - identifier: Url
    columnName: SmishingAlertDescription
  entityType: URL
incidentConfiguration:
  groupingConfiguration:
    enabled: true
    groupByCustomDetails:
    - ThreatCategory
    - ImpersonationRisk
    - CampaignIndicators
    lookbackDuration: P1D
    reopenClosedIncident: false
    groupByEntities:
    - Account
    - Host
    matchingMethod: Selected
    groupByAlertDetails:
    - SmishAlertType
    - DeviceGuid
  createIncident: true
customDetails:
  CampaignIndicators: CampaignIndicators
  ImpersonationRisk: ImpersonationRisk
  SmishSeverity: SmishingAlertSeverity
  DeviceSecStatus: DeviceSecurityStatus
  SmishAlertType: SmishingAlertType
  ThreatCategory: ThreatCategory
  DevicePlatform: DevicePlatform
  AlertRiskScore: AlertRiskScore
  DeviceRiskLevel: DeviceRiskLevel
kind: Scheduled
triggerOperator: gt
name: Lookout - Critical Smishing and Phishing Alerts (v2)
version: 2.0.3
status: Available
requiredDataConnectors:
- dataTypes:
  - LookoutEvents
  connectorId: LookoutAPI
description: |
  'Detects critical smishing (SMS phishing) and phishing alerts from Lookout Mobile Risk API v2. This rule identifies sophisticated social engineering attacks including CEO fraud, credential harvesting, and malicious link campaigns targeting mobile devices. Leverages enhanced v2 smishing detection capabilities for comprehensive mobile threat protection.'
relevantTechniques:
- T1660
- T1417
- T1423
queryPeriod: 15m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Lookout/Analytic%20Rules/LookoutSmishingAlertV2.yaml
triggerThreshold: 0
suppressionEnabled: false
eventGroupingSettings:
  aggregationKind: AlertPerResult
alertDetailsOverride:
  alertDisplayNameFormat: 'Critical Smishing Alert: {{ThreatCategory}} targeting {{DevicePlatform}} Device'
  alertSeverityColumnName: SmishingAlertSeverity
  alertTacticsColumnName: ThreatCategory
  alertDescriptionFormat: '{{SmishingAlertSeverity}} {{ThreatCategory}} attack on {{DevicePlatform}}'

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/7a3e5f9b-4c8d-4a2e-9f1b-6d8e2a4c7f9e')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/7a3e5f9b-4c8d-4a2e-9f1b-6d8e2a4c7f9e')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "{{SmishingAlertSeverity}} {{ThreatCategory}} attack on {{DevicePlatform}}",
          "alertDisplayNameFormat": "Critical Smishing Alert: {{ThreatCategory}} targeting {{DevicePlatform}} Device",
          "alertSeverityColumnName": "SmishingAlertSeverity",
          "alertTacticsColumnName": "ThreatCategory"
        },
        "alertRuleTemplateName": "7a3e5f9b-4c8d-4a2e-9f1b-6d8e2a4c7f9e",
        "customDetails": {
          "AlertRiskScore": "AlertRiskScore",
          "CampaignIndicators": "CampaignIndicators",
          "DevicePlatform": "DevicePlatform",
          "DeviceRiskLevel": "DeviceRiskLevel",
          "DeviceSecStatus": "DeviceSecurityStatus",
          "ImpersonationRisk": "ImpersonationRisk",
          "SmishAlertType": "SmishingAlertType",
          "SmishSeverity": "SmishingAlertSeverity",
          "ThreatCategory": "ThreatCategory"
        },
        "description": "'Detects critical smishing (SMS phishing) and phishing alerts from Lookout Mobile Risk API v2. This rule identifies sophisticated social engineering attacks including CEO fraud, credential harvesting, and malicious link campaigns targeting mobile devices. Leverages enhanced v2 smishing detection capabilities for comprehensive mobile threat protection.'\n",
        "displayName": "Lookout - Critical Smishing and Phishing Alerts (v2)",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "DeviceEmailAddress",
                "identifier": "FullName"
              },
              {
                "columnName": "TargetEmailAddress",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "DeviceGuid",
                "identifier": "HostName"
              },
              {
                "columnName": "DevicePlatform",
                "identifier": "OSFamily"
              },
              {
                "columnName": "DeviceOSVersion",
                "identifier": "OSVersion"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "SmishingAlertDescription",
                "identifier": "Url"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "groupByAlertDetails": [
              "SmishAlertType",
              "DeviceGuid"
            ],
            "groupByCustomDetails": [
              "ThreatCategory",
              "ImpersonationRisk",
              "CampaignIndicators"
            ],
            "groupByEntities": [
              "Account",
              "Host"
            ],
            "lookbackDuration": "P1D",
            "matchingMethod": "Selected",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Lookout/Analytic%20Rules/LookoutSmishingAlertV2.yaml",
        "query": "LookoutEvents\n| where EventType == \"SMISHING_ALERT\"\n| where SmishingAlertSeverity in (\"CRITICAL\", \"HIGH\")\n| where SmishingAlertType in (\"PHISHING_DETECTION\", \"FRAUD_DETECTION\", \"CREDENTIAL_HARVESTING\")\n| extend \n    AlertRiskScore = case(\n        SmishingAlertSeverity == \"CRITICAL\", 10,\n        SmishingAlertSeverity == \"HIGH\", 8,\n        SmishingAlertSeverity == \"MEDIUM\", 5,\n        SmishingAlertSeverity == \"LOW\", 2,\n        1\n    ),\n    ThreatCategory = case(\n        SmishingAlertType == \"PHISHING_DETECTION\", \"Phishing\",\n        SmishingAlertType == \"FRAUD_DETECTION\", \"Fraud\",\n        SmishingAlertType == \"CREDENTIAL_HARVESTING\", \"Credential Theft\",\n        SmishingAlertType == \"MALICIOUS_LINK\", \"Malicious Link\",\n        \"Other\"\n    ),\n    ImpersonationRisk = case(\n        SmishingAlertDescription has \"CEO\" or SmishingAlertDescription has \"executive\", \"Executive Impersonation\",\n        SmishingAlertDescription has \"IT\" or SmishingAlertDescription has \"support\", \"IT Support Impersonation\", \n        SmishingAlertDescription has \"bank\" or SmishingAlertDescription has \"financial\", \"Financial Impersonation\",\n        SmishingAlertDescription has \"delivery\" or SmishingAlertDescription has \"package\", \"Delivery Impersonation\",\n        \"Generic Phishing\"\n    )\n| extend DeviceRiskLevel = case(\n    DeviceSecurityStatus == \"THREATS_HIGH\", \"High\",\n    DeviceSecurityStatus == \"THREATS_MEDIUM\", \"Medium\", \n    DeviceSecurityStatus == \"THREATS_LOW\", \"Low\",\n    \"Unknown\"\n)\n| extend CampaignIndicators = case(\n    AlertRiskScore >= 8 and DeviceRiskLevel == \"High\", \"Targeted Campaign\",\n    AlertRiskScore >= 6 and ImpersonationRisk != \"Generic Phishing\", \"Sophisticated Attack\",\n    AlertRiskScore >= 5, \"Coordinated Threat\",\n    \"Isolated Incident\"\n)\n| project\n    TimeGenerated,\n    EventId,\n    SmishingAlertId,\n    SmishingAlertType,\n    SmishingAlertSeverity,\n    SmishingAlertDescription,\n    AlertRiskScore,\n    ThreatCategory,\n    ImpersonationRisk,\n    CampaignIndicators,\n    DeviceGuid,\n    DevicePlatform,\n    DeviceOSVersion,\n    DeviceManufacturer,\n    DeviceModel,\n    DeviceEmailAddress,\n    DeviceSecurityStatus,\n    DeviceRiskLevel,\n    TargetEmailAddress,\n    TargetPlatform,\n    ActorType,\n    ActorGuid,\n    ChangeType\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT15M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Collection",
          "CredentialAccess",
          "Discovery",
          "InitialAccess"
        ],
        "techniques": null,
        "templateVersion": "2.0.3",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}