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

incidentConfiguration:
  groupingConfiguration:
    groupByAlertDetails:
    - SmishAlertType
    - DeviceGuid
    lookbackDuration: P1D
    reopenClosedIncident: false
    groupByCustomDetails:
    - ThreatCategory
    - ImpersonationRisk
    - CampaignIndicators
    groupByEntities:
    - Account
    - Host
    matchingMethod: Selected
    enabled: true
  createIncident: true
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Lookout/Analytic%20Rules/LookoutSmishingAlertV2.yaml
triggerThreshold: 0
id: 7a3e5f9b-4c8d-4a2e-9f1b-6d8e2a4c7f9e
suppressionEnabled: false
kind: Scheduled
relevantTechniques:
- T1660
- T1417
- T1423
version: 2.0.3
tactics:
- InitialAccess
- CredentialAccess
- Collection
- Discovery
queryPeriod: 15m
queryFrequency: 5m
alertDetailsOverride:
  alertTacticsColumnName: ThreatCategory
  alertDescriptionFormat: '{{SmishingAlertSeverity}} {{ThreatCategory}} attack on {{DevicePlatform}}'
  alertSeverityColumnName: SmishingAlertSeverity
  alertDisplayNameFormat: 'Critical Smishing Alert: {{ThreatCategory}} targeting {{DevicePlatform}} Device'
severity: High
name: Lookout - Critical Smishing and Phishing Alerts (v2)
customDetails:
  SmishSeverity: SmishingAlertSeverity
  DeviceSecStatus: DeviceSecurityStatus
  AlertRiskScore: AlertRiskScore
  DevicePlatform: DevicePlatform
  SmishAlertType: SmishingAlertType
  ImpersonationRisk: ImpersonationRisk
  CampaignIndicators: CampaignIndicators
  DeviceRiskLevel: DeviceRiskLevel
  ThreatCategory: ThreatCategory
requiredDataConnectors:
- connectorId: LookoutAPI
  dataTypes:
  - LookoutEvents
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: DeviceEmailAddress
  - identifier: Name
    columnName: TargetEmailAddress
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: DeviceGuid
  - identifier: OSFamily
    columnName: DevicePlatform
  - identifier: OSVersion
    columnName: DeviceOSVersion
- entityType: URL
  fieldMappings:
  - identifier: Url
    columnName: SmishingAlertDescription
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.'
eventGroupingSettings:
  aggregationKind: AlertPerResult
status: Available
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
suppressionDuration: PT1H

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"
    }
  ]
}