Uniqkey - Self-granted privilege or access change | Microsoft Sentinel Analytic Rules

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Id	4b1fefb3-419a-4bbe-8a74-ef8288a8d8d0
Rulename	Uniqkey - Self-granted privilege or access change
Description	Identifies privilege, sharing or group-membership changes in Uniqkey where the actor and the target of the change are the same person. In a healthy administrative process, access changes are made by a different administrator, so a self-referential grant is a strong indicator of insider privilege escalation or a compromised administrator account expanding its own reach.
Severity	Medium
Tactics	PrivilegeEscalation Persistence
Techniques	T1078 T1098
Required data connectors	UniqkeyEventsConnector
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/Uniqkey/Analytic%20Rules/Uniqkey%20-%20Self-granted%20privilege%20or%20access%20change.yaml
Version	1.0.0
Arm template	4b1fefb3-419a-4bbe-8a74-ef8288a8d8d0.json

KQL

UniqkeyEvents_CL
| where Category in ("privilege_management", "sharing", "group_management")
| where TargetType == "employee"
| where (isnotempty(TargetId) and TargetId == ActorId) or (isnotempty(TargetName) and TargetName =~ ActorEmail)
| project TimeGenerated, ActorEmail, ActorType, Category, Action, ActionId, TargetType, TargetName, ClientSystem, SrcIpAddr

YAML

incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: 1h
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: true
  createIncident: true
name: Uniqkey - Self-granted privilege or access change
suppressionDuration: 5h
suppressionEnabled: false
triggerOperator: gt
kind: Scheduled
queryFrequency: 1h
description: Identifies privilege, sharing or group-membership changes in Uniqkey where the actor and the target of the change are the same person. In a healthy administrative process, access changes are made by a different administrator, so a self-referential grant is a strong indicator of insider privilege escalation or a compromised administrator account expanding its own reach.
id: 4b1fefb3-419a-4bbe-8a74-ef8288a8d8d0
triggerThreshold: 0
queryPeriod: 1h
query: |-
  UniqkeyEvents_CL
  | where Category in ("privilege_management", "sharing", "group_management")
  | where TargetType == "employee"
  | where (isnotempty(TargetId) and TargetId == ActorId) or (isnotempty(TargetName) and TargetName =~ ActorEmail)
  | project TimeGenerated, ActorEmail, ActorType, Category, Action, ActionId, TargetType, TargetName, ClientSystem, SrcIpAddr
version: 1.0.0
requiredDataConnectors:
- connectorId: UniqkeyEventsConnector
  dataTypes:
  - UniqkeyEvents_CL
eventGroupingSettings:
  aggregationKind: AlertPerResult
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Uniqkey/Analytic%20Rules/Uniqkey%20-%20Self-granted%20privilege%20or%20access%20change.yaml
relevantTechniques:
- T1078
- T1098
tactics:
- PrivilegeEscalation
- Persistence
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: ActorEmail
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: SrcIpAddr
  entityType: IP

ARM

{
  "$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/4b1fefb3-419a-4bbe-8a74-ef8288a8d8d0')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/4b1fefb3-419a-4bbe-8a74-ef8288a8d8d0')]",
      "properties": {
        "alertRuleTemplateName": "4b1fefb3-419a-4bbe-8a74-ef8288a8d8d0",
        "customDetails": null,
        "description": "Identifies privilege, sharing or group-membership changes in Uniqkey where the actor and the target of the change are the same person. In a healthy administrative process, access changes are made by a different administrator, so a self-referential grant is a strong indicator of insider privilege escalation or a compromised administrator account expanding its own reach.",
        "displayName": "Uniqkey - Self-granted privilege or access change",
        "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-%20Self-granted%20privilege%20or%20access%20change.yaml",
        "query": "UniqkeyEvents_CL\n| where Category in (\"privilege_management\", \"sharing\", \"group_management\")\n| where TargetType == \"employee\"\n| where (isnotempty(TargetId) and TargetId == ActorId) or (isnotempty(TargetName) and TargetName =~ ActorEmail)\n| project TimeGenerated, ActorEmail, ActorType, Category, Action, ActionId, TargetType, TargetName, ClientSystem, SrcIpAddr",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "subTechniques": [],
        "suppressionDuration": "PT5H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence",
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1078",
          "T1098"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}