Detection rules › Kusto

Radiflow - Unauthorized Command in Operational Device

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

'Generates an incident when an unauthorized command is detected in the network by Radiflow's iSID.'

MITRE ATT&CK coverage

Rule body kusto

id: 4d90d485-6d47-417e-80ea-9cf956c1a671
name: Radiflow - Unauthorized Command in Operational Device
description: |
  'Generates an incident when an unauthorized command is detected in the network by Radiflow's iSID.'
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: RadiflowIsid
    dataTypes:
      - RadiflowEvent
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- Execution
- LateralMovement
- InhibitResponseFunction
- ImpairProcessControl
relevantTechniques:
- T0858
- T0843
- T0816
- T0857
- T0836
- T0855
query: |
  RadiflowEvent
  | where DeviceProduct =~ 'iSID'
  | where 
      (
          EventClassID in (114, 115, 116, 117, 118, 119, 162)
          or EventMessage has 'Unauthorized'
      )
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    lookbackDuration: 1h
    matchingMethod: AllEntities
    groupByEntities: []
    groupByAlertDetails: []
    groupByCustomDetails: []
eventGroupingSettings:
  aggregationKind: AlertPerResult
alertDetailsOverride:
  alertDisplayNameFormat: Unauthorized Command in Operational Device
  alertDescriptionFormat: "An unauthorized command has been detected. Please check the alert details for further information.\n\nMessage: {{EventMessage}}\nSource device: {{SourceIP}} \nDestination device (if any): {{DestinationIP}} "
  alertSeverityColumnName: EventSeverity
  alertDynamicProperties: []
suppressionEnabled: false
suppressionDuration: 5h
customDetails:
  SourceMAC: SourceMACAddress
  SourceType: SourceType
  SourceVendor: SourceVendor
  SourceVLAN: SourceVLAN
  DestinationMAC: DestinationMACAddress
  DestinationType: DestinationType
  DestinationVendor: DestinationVendor
  Port: Port
  Protocol: Protocol
  SourceIP: SourceIP
  DestinationIP: DestinationIP
  SourceHostName: SourceHostName
  DestinationHostName: DestinationHostName
entityMappings:
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: SourceHostName
  - identifier: NetBiosName
    columnName: SourceHostName
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: DestinationHostName
  - identifier: NetBiosName
    columnName: DestinationHostName
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: SourceIP
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: DestinationIP
version: 1.0.0
kind: Scheduled

Stages and Predicates

Stage 1: source

RadiflowEvent

Stage 2: where

| where DeviceProduct =~ 'iSID'

Stage 3: where

| where 
    (
        EventClassID in (114, 115, 116, 117, 118, 119, 162)
        or EventMessage has 'Unauthorized'
    )

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
DeviceProducteq
  • iSID
EventClassIDin
  • 114 transforms: cased
  • 115 transforms: cased
  • 116 transforms: cased
  • 117 transforms: cased
  • 118 transforms: cased
  • 119 transforms: cased
  • 162 transforms: cased
EventMessagematch
  • Unauthorized transforms: term