Detection rules › Kusto

Multi-Factor Authentication for User Disabled

Status
available
Severity
high
Time window
5m
Source
github.com/Azure/Azure-Sentinel

Detects when multi-factor authentication is disabled for a specific user.

Rule body

id: 3fefd6c5-bbe9-49a9-95b2-d4b8a5591d9c
name: Multi-Factor Authentication for User Disabled
description: Detects when multi-factor authentication is disabled for a specific user.
severity: High
status: Available
requiredDataConnectors:
- connectorId: Syslog
  dataTypes:
  - Syslog
- connectorId: SyslogAma
  dataTypes:
  - Syslog
queryFrequency: 5m
queryPeriod: 5m
triggerOperator: gt
triggerThreshold: 0
eventGroupingSettings:
  aggregationKind: AlertPerResult
tactics: []
relevantTechniques: []
query: "Veeam_GetSecurityEvents\n| where instanceId == 40204\n| project\n    Date\
  \ = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),\n    DataSource = original_host,\n\
  \    EventId = instanceId,\n    UserName = user,\n    MessageDetails = Description,\n\
  \    Severity = SeverityDescription"
version: 1.0.1
kind: Scheduled
customDetails:
  Date: Date
  VbrHostName: DataSource
  EventId: EventId
  MessageDetails: MessageDetails
  Severity: Severity

Stages and Predicates

Stage 1: source

Veeam_GetSecurityEvents

Stage 2: where

| where instanceId == 40204

Stage 3: project

| project
    Date = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),
    DataSource = original_host,
    EventId = instanceId,
    UserName = user,
    MessageDetails = Description,
    Severity = SeverityDescription

Indicators

These rows show field, operator, and value matches.

Output fields

These fields are emitted when the rule matches.

FieldSource
DataSourceproject
Dateproject
EventIdproject
MessageDetailsproject
Severityproject
UserNameproject