Detection rules › Kusto

Lookout - New Threat events found.

This is a third-party alert feed, not a detection over modeled telemetry. The vendor product raised the finding; this rule forwards it into the SIEM. It is searchable for reference but is excluded from the detection-rule browse and the ATT&CK coverage matrix.

Status
available
Severity
high
Time window
1h
Source
github.com/Azure/Azure-Sentinel

'Created to detect new Threat events from the data which is recently synced by Lookout Solution.'

MITRE ATT&CK coverage

TacticTechniques
DiscoveryT1057 Process Discovery

Rule body kusto

id: 7593cc60-e294-402d-9202-279fb3c7d55f
name: Lookout - New Threat events found.
description: |
  'Created to detect new Threat events from the data which is recently synced by Lookout Solution.'
severity: High
status: Available
requiredDataConnectors:
  - connectorId: LookoutAPI
    dataTypes:
      - Lookout_CL
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Discovery
relevantTechniques:
  - T1057
query: |
  Lookout_CL
  | where details_action_s == 'DETECTED' and type_s == 'THREAT'
  | extend DetailsPackageName = details_packageName_s
  | extend TargetPlatform = target_platform_s
  | extend TargetOsVersion = target_osVersion_s
  | extend Type = type_s
  | extend Severity = details_severity_s
  | extend Classifications = details_classifications_s
  | extend Platform = target_platform_s
entityMappings:
  - entityType: Host
    fieldMappings:
      - identifier: FullName
        columnName: DetailsPackageName
      - identifier: OSFamily
        columnName: TargetPlatform
      - identifier: OSVersion
        columnName: TargetOsVersion      
customDetails:
  Type: Type
  Severity: Severity
  Classification: Classifications
  Platform: Platform
version: 1.0.1
kind: Scheduled

Stages and Predicates

Stage 1: source

Lookout_CL

Stage 2: where

| where details_action_s == 'DETECTED' and type_s == 'THREAT'

Stage 3: extend (7 consecutive steps)

| extend DetailsPackageName = details_packageName_s
| extend TargetPlatform = target_platform_s
| extend TargetOsVersion = target_osVersion_s
| extend Type = type_s
| extend Severity = details_severity_s
| extend Classifications = details_classifications_s
| extend Platform = target_platform_s

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
details_action_seq
  • DETECTED transforms: cased
type_seq
  • THREAT transforms: cased

Output fields

Fields the rule emits when it matches. Chronicle authors list these in the outcome block; they appear on the detection and $risk_score drives alerting. Sentinel / Defender XDR rules build them up through project / summarize / extend stages. Sentinel maps these into alert fields via entityMappings and customDetails; Defender XDR custom detections surface them as alert fields directly.

FieldSource
DetailsPackageNameextend
TargetPlatformextend
TargetOsVersionextend
Typeextend
Severityextend
Classificationsextend
Platformextend