Lookout - Critical Smishing and Phishing Alerts (v2)

id: 7a3e5f9b-4c8d-4a2e-9f1b-6d8e2a4c7f9e
name: 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
status: Available
requiredDataConnectors:
  - connectorId: LookoutAPI
    dataTypes:
      - LookoutEvents
queryFrequency: 5m
queryPeriod: 15m
triggerOperator: gt
triggerThreshold: 0
tactics:
  - InitialAccess
  - CredentialAccess
  - Collection
  - Discovery
relevantTechniques:
  - T1660
  - T1417
  - T1423
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:
  - 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
customDetails:
  SmishAlertType: SmishingAlertType
  SmishSeverity: SmishingAlertSeverity
  AlertRiskScore: AlertRiskScore
  ThreatCategory: ThreatCategory
  ImpersonationRisk: ImpersonationRisk
  CampaignIndicators: CampaignIndicators
  DevicePlatform: DevicePlatform
  DeviceSecStatus: DeviceSecurityStatus
  DeviceRiskLevel: DeviceRiskLevel
alertDetailsOverride:
  alertDisplayNameFormat: "Critical Smishing Alert: {{ThreatCategory}} targeting {{DevicePlatform}} Device"
  alertDescriptionFormat: "{{SmishingAlertSeverity}} {{ThreatCategory}} attack on {{DevicePlatform}}"
  alertTacticsColumnName: ThreatCategory
  alertSeverityColumnName: SmishingAlertSeverity
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    lookbackDuration: P1D
    matchingMethod: Selected
    groupByEntities:
      - Account
      - Host
    groupByAlertDetails:
      - SmishAlertType
      - DeviceGuid
    groupByCustomDetails:
      - ThreatCategory
      - ImpersonationRisk
      - CampaignIndicators
eventGroupingSettings:
  aggregationKind: AlertPerResult
suppressionEnabled: false
suppressionDuration: PT1H
version: 2.0.3
kind: Scheduled