{
  "$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/755c7adb-1015-4be3-9e56-55e72009c088')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/755c7adb-1015-4be3-9e56-55e72009c088')]",
      "properties": {
        "alertRuleTemplateName": "755c7adb-1015-4be3-9e56-55e72009c088",
        "customDetails": null,
        "description": "Detects an actor reading an abnormally large number of credentials from Uniqkey within a single hour (default threshold: more than 50 access events). Bulk credential reads are rarely part of normal daily work and can indicate a compromised session harvesting secrets, or an insider collecting credentials ahead of departure. Tune the threshold to your organization's baseline, and consider a lower threshold for actors of type scim or system that normally never read credentials interactively.",
        "displayName": "Uniqkey - Excessive credential access",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "ActorEmail",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "SrcIpAddr",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "PT1H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Uniqkey/Analytic%20Rules/Uniqkey%20-%20Excessive%20credential%20access.yaml",
        "query": "let threshold = 50;\nUniqkeyEvents_CL\n| where Category == \"credential_access\"\n| summarize AccessCount = count(), DistinctTargets = dcount(TargetId), StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), SrcIpAddr = take_any(SrcIpAddr) by ActorEmail, ActorType\n| where AccessCount > threshold\n| project StartTime, EndTime, ActorEmail, ActorType, AccessCount, DistinctTargets, SrcIpAddr",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "subTechniques": [],
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess"
        ],
        "techniques": [
          "T1555"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}