Claroty - Multiple failed logins by user

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Id	4b5bb3fc-c690-4f54-9a74-016213d699b4
Rulename	Claroty - Multiple failed logins by user
Description	Detects multiple failed logins by the same user in Claroty SRA event logs. The rule looks for failed Login to SRA events, extracts the source username from the event message, and alerts when a user exceeds 5 failed logins within 5 minutes.
Severity	High
Tactics	CredentialAccess InitialAccess
Techniques	T1110 T1190 T1133
Required data connectors	CefAma
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyMultipleFailedLogin.yaml
Version	1.0.4
Arm template	4b5bb3fc-c690-4f54-9a74-016213d699b4.json

KQL

let threshold = 5;
ClarotyEvent
| where EventType has 'Login to SRA'
| where EventType !has 'succeeded'
| extend SrcUsername = trim(' ', tostring(extract(@'User\s(.*?)\sfailed', 1, EventMessage)))
| where isnotempty(SrcUsername)
| summarize FailedLogins = count() by SrcUsername, bin(TimeGenerated, 5m)
| where FailedLogins > threshold
| extend AccountCustomEntity = SrcUsername

YAML

entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: AccountCustomEntity
tactics:
- CredentialAccess
- InitialAccess
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma
alertDetailsOverride:
  alertDisplayNameFormat: Claroty multiple failed logins for {{SrcUsername}}
  alertDescriptionFormat: '{{FailedLogins}} failed logins for user {{SrcUsername}} exceeded the threshold in 5 minutes.'
id: 4b5bb3fc-c690-4f54-9a74-016213d699b4
severity: High
status: Available
query: |
  let threshold = 5;
  ClarotyEvent
  | where EventType has 'Login to SRA'
  | where EventType !has 'succeeded'
  | extend SrcUsername = trim(' ', tostring(extract(@'User\s(.*?)\sfailed', 1, EventMessage)))
  | where isnotempty(SrcUsername)
  | summarize FailedLogins = count() by SrcUsername, bin(TimeGenerated, 5m)
  | where FailedLogins > threshold
  | extend AccountCustomEntity = SrcUsername  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Claroty/Analytic Rules/ClarotyMultipleFailedLogin.yaml
kind: Scheduled
queryPeriod: 1h
version: 1.0.4
name: Claroty - Multiple failed logins by user
queryFrequency: 1h
triggerThreshold: 0
relevantTechniques:
- T1110
- T1190
- T1133
description: Detects multiple failed logins by the same user in Claroty SRA event logs. The rule looks for failed Login to SRA events, extracts the source username from the event message, and alerts when a user exceeds 5 failed logins within 5 minutes.
triggerOperator: gt

ARM