Versasec CMS - Multiple Failed Login Attempts

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Id	B1DB8B7E-9D74-48C3-9683-74483CBEFF4E
Rulename	Versasec CMS - Multiple Failed Login Attempts
Description	Detects when Operator login failed to often.
Severity	High
Tactics	CredentialAccess
Techniques	T1110
Required data connectors	VersasecCms
Kind	Scheduled
Query frequency	5m
Query period	1h
Trigger threshold	5
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VersasecCMS/Analytic Rules/VersasecCmsOperatorLoginFailed.yaml
Version	1.0.1
Arm template	B1DB8B7E-9D74-48C3-9683-74483CBEFF4E.json

KQL

let threshold = 5;
VersasecCmsSysLogs 
| where EventId == 2 
| sort by ComputerName asc, TimeGenerated asc
| extend TimeDiff = datetime_diff('minute', TimeGenerated, prev(TimeGenerated))
| where TimeDiff <= threshold and ComputerName == prev(ComputerName)

YAML

entityMappings:
- entityType: Host
  fieldMappings:
  - identifier: FullName
    columnName: ComputerName
tactics:
- CredentialAccess
requiredDataConnectors:
- dataTypes:
  - VersasecCmsSysLogs
  connectorId: VersasecCms
incidentConfiguration:
  groupingConfiguration:
    enabled: false
    lookbackDuration: 5m
    reopenClosedIncident: false
    matchingMethod: AllEntities
  createIncident: true
id: B1DB8B7E-9D74-48C3-9683-74483CBEFF4E
severity: High
eventGroupingSettings:
  aggregationKind: SingleAlert
status: Available
query: |
  let threshold = 5;
  VersasecCmsSysLogs 
  | where EventId == 2 
  | sort by ComputerName asc, TimeGenerated asc
  | extend TimeDiff = datetime_diff('minute', TimeGenerated, prev(TimeGenerated))
  | where TimeDiff <= threshold and ComputerName == prev(ComputerName)  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VersasecCMS/Analytic Rules/VersasecCmsOperatorLoginFailed.yaml
kind: Scheduled
queryPeriod: 1h
version: 1.0.1
name: Versasec CMS - Multiple Failed Login Attempts
queryFrequency: 5m
triggerThreshold: 5
relevantTechniques:
- T1110
description: |
    Detects when Operator login failed to often.
triggerOperator: gt

ARM