GWorkspace - Possible brute force attack

let threshold = 5;
GWorkspaceActivityReports
| where EventMessage has "login_failure"
| summarize login_attempts = count() by ActorEmail, bin(TimeGenerated, 5m)
| where login_attempts > threshold
| extend AccountCustomEntity = ActorEmail

queryPeriod: 1h
entityMappings:
- fieldMappings:
  - identifier: Name
    columnName: AccountCustomEntity
  entityType: Account
relevantTechniques:
- T1110
severity: Medium
requiredDataConnectors:
- connectorId: GoogleWorkspaceReportsAPI
  dataTypes:
  - GWorkspaceActivityReports
id: 8f6cd9a4-5e57-11ec-bf63-0242ac130002
triggerOperator: gt
kind: Scheduled
query: |
  let threshold = 5;
  GWorkspaceActivityReports
  | where EventMessage has "login_failure"
  | summarize login_attempts = count() by ActorEmail, bin(TimeGenerated, 5m)
  | where login_attempts > threshold
  | extend AccountCustomEntity = ActorEmail  
tactics:
- CredentialAccess
triggerThreshold: 0
queryFrequency: 1h
status: Available
description: |
    'Detects possible brute force attack.'
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleWorkspaceReports/Analytic Rules/GWorkspacePossibleBruteForce.yaml
name: GWorkspace - Possible brute force attack
version: 1.0.1

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/8f6cd9a4-5e57-11ec-bf63-0242ac130002')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/8f6cd9a4-5e57-11ec-bf63-0242ac130002')]",
      "properties": {
        "alertRuleTemplateName": "8f6cd9a4-5e57-11ec-bf63-0242ac130002",
        "customDetails": null,
        "description": "'Detects possible brute force attack.'\n",
        "displayName": "GWorkspace - Possible brute force attack",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleWorkspaceReports/Analytic Rules/GWorkspacePossibleBruteForce.yaml",
        "query": "let threshold = 5;\nGWorkspaceActivityReports\n| where EventMessage has \"login_failure\"\n| summarize login_attempts = count() by ActorEmail, bin(TimeGenerated, 5m)\n| where login_attempts > threshold\n| extend AccountCustomEntity = ActorEmail\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess"
        ],
        "techniques": [
          "T1110"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}