Cynerio - IoT - Weak password

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

User signed in using weak credentials

MITRE ATT&CK coverage

Tactic	Techniques
Credential Access	`T1552` Unsecured Credentials

Rule body

id: 65db1346-6435-4079-bbf4-9a7113c98054
name: Cynerio - IoT - Weak password
description:  User signed in using weak credentials
severity: High
tags: 
  - Schema: ASimAuthentication
    SchemaVersion: 0.1.3
requiredDataConnectors:
  - connectorId: CynerioSecurityEvents
    dataTypes:
      - CynerioEvent_CL
queryFrequency: 5h
queryPeriod: 5h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - CredentialAccess
relevantTechniques:
  - T1552
query: |
  CynerioEvent_CL
  | where TimeGenerated > ago(24h)
  | where module_s == 'IDS'
  | where title_s == 'Weak Password'
entityMappings:
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: asset_ip_s
eventGroupingSettings:
  aggregationKind: SingleAlert
customDetails: 
  Service: service_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 == 'Weak Password'

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	`Weak Password`	`field:"title_s" kind:eq value:"Weak Password"`

Cynerio - IoT - Weak password

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`