Cynerio - Medical device scanning

Severity: medium
Time window: 5h
Source: github.com/Azure/Azure-Sentinel

Medical device is scanned with vulnerability scanner

MITRE ATT&CK coverage

Tactic	Techniques
Initial Access	`T0866` Exploitation of Remote Services
Lateral Movement	`T0866` Exploitation of Remote Services

Rule body

id: 211e9f49-3fca-4598-bc6e-e2c28d86e72c
name: Cynerio - Medical device scanning
description: Medical device is scanned with vulnerability scanner
severity: Medium
requiredDataConnectors:
  - connectorId: CynerioSecurityEvents
    dataTypes:
      - CynerioEvent_CL
queryFrequency: 5h
queryPeriod: 5h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - LateralMovement
relevantTechniques:
  - T0866
query: |
  CynerioEvent_CL
  | where TimeGenerated > ago(24h)
  | where module_s == 'IDS'
  | where title_s == 'Scanner Activity'
entityMappings:
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: asset_ip_s
eventGroupingSettings:
  aggregationKind: SingleAlert
customDetails: 
  DeviceType: asset_type_s
version: 1.0.0
kind: Scheduled

Stages and Predicates

Stage 1: `source`

CynerioEvent_CL

Stage 2: `where`

| where TimeGenerated > ago(24h)

Stage 3: `where`

| where module_s == 'IDS'

Stage 4: `where`

| where title_s == 'Scanner Activity'

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`module_s`	eq	`IDS`	`field:"module_s" kind:eq value:"IDS"`
`title_s`	eq	`Scanner Activity`	`field:"title_s" kind:eq value:"Scanner Activity"`

Cynerio - Medical device scanning

MITRE ATT&CK coverage

Rule body

Stages and Predicates

Stage 1: source

Stage 2: where

Stage 3: where

Stage 4: where

Indicators

Stage 1: `source`

Stage 2: `where`

Stage 3: `where`

Stage 4: `where`