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

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

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"
    }
  ]
}