Detection rules › Kusto

Radiflow - Network Scanning Detected

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

'Generates an incident when a network scan is detected either by Radiflow's iSID.'

MITRE ATT&CK coverage

Rule body kusto

id: cde00cc5-5841-4aa9-96c5-dd836f9e3f26
name: Radiflow - Network Scanning Detected
description: |
  'Generates an incident when a network scan is detected either by Radiflow's iSID.'
severity: High
status: Available
requiredDataConnectors:
  - connectorId: RadiflowIsid
    dataTypes:
      - RadiflowEvent
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- Discovery
relevantTechniques:
- T0840
- T0846
- T0888
query: |
  RadiflowEvent
  | where DeviceProduct =~ 'iSID'
  | where
      (
          EventClassID in (52, 105, 150, 151, 152, 153, 158, 166, 175)
          or EventMessage has 'Scan'
      )
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    lookbackDuration: 1h
    matchingMethod: AllEntities
    groupByEntities: []
    groupByAlertDetails: []
    groupByCustomDetails: []
eventGroupingSettings:
  aggregationKind: AlertPerResult
alertDetailsOverride:
  alertDisplayNameFormat: 'Network Scanning Detected: {{EventMessage}}'
  alertDescriptionFormat: "A suspicious network scan activity has been detected in the network. Please check the 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
  SourceHostName: SourceHostName
  SourceIP: SourceIP
  DestinationHostName: DestinationHostName
  DestinationIP: DestinationIP
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 (52, 105, 150, 151, 152, 153, 158, 166, 175)
        or EventMessage has 'Scan'
    )

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
  • 105 transforms: cased
  • 150 transforms: cased
  • 151 transforms: cased
  • 152 transforms: cased
  • 153 transforms: cased
  • 158 transforms: cased
  • 166 transforms: cased
  • 175 transforms: cased
  • 52 transforms: cased
EventMessagematch
  • Scan transforms: term