Policy version set to default

AWSCloudTrail
| where EventName == "SetDefaultPolicyVersion" and isempty(ErrorCode) and isempty(ErrorMessage)
| extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))
| extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityUserName

name: Policy version set to default
query: |
  AWSCloudTrail
  | where EventName == "SetDefaultPolicyVersion" and isempty(ErrorCode) and isempty(ErrorMessage)
  | extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))
  | extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityUserName  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_SetDefaulyPolicyVersion.yaml
queryFrequency: 1h
triggerThreshold: 0
requiredDataConnectors:
- dataTypes:
  - AWSCloudTrail
  connectorId: AWS
version: 1.0.0
status: Available
queryPeriod: 1h
id: 874a1762-3fd7-4489-b411-6d4a9e9e8a59
triggerOperator: gt
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
relevantTechniques:
- T1078
severity: Medium
description: |
    'An attacker with SetDefaultPolicyVersion permissions could escalate privileges through existing policy versions that are not currently in use. More about this API at https://docs.aws.amazon.com/IAM/latest/APIReference/API_SetDefaultPolicyVersion.html '
kind: Scheduled
tactics:
- InitialAccess

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/874a1762-3fd7-4489-b411-6d4a9e9e8a59')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/874a1762-3fd7-4489-b411-6d4a9e9e8a59')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "Policy version set to default",
        "description": "'An attacker with SetDefaultPolicyVersion permissions could escalate privileges through existing policy versions that are not currently in use. More about this API at https://docs.aws.amazon.com/IAM/latest/APIReference/API_SetDefaultPolicyVersion.html '\n",
        "severity": "Medium",
        "enabled": true,
        "query": "AWSCloudTrail\n| where EventName == \"SetDefaultPolicyVersion\" and isempty(ErrorCode) and isempty(ErrorMessage)\n| extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))\n| extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityUserName\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1078"
        ],
        "alertRuleTemplateName": "874a1762-3fd7-4489-b411-6d4a9e9e8a59",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ],
            "entityType": "Account"
          },
          {
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "IPCustomEntity"
              }
            ],
            "entityType": "IP"
          }
        ],
        "status": "Available",
        "templateVersion": "1.0.0",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_SetDefaulyPolicyVersion.yaml"
      }
    }
  ]
}