Privilege escalation with admin managed policy

AWSCloudTrail
| where  EventName in ("AttachUserPolicy","AttachRolePolicy","AttachGroupPolicy") and isempty(ErrorCode) and isempty(ErrorMessage)
| where tostring(parse_json(RequestParameters).policyArn) contains "Admin" and tostring(parse_json(RequestParameters).policyArn) !contains "FullAccess" and tostring(parse_json(RequestParameters).policyArn) !startswith "arn:aws:iam::aws:policy/AdministratorAccess"
| project TimeGenerated, EventName, EventTypeName, UserIdentityAccountId, UserIdentityPrincipalid, UserAgent,UserIdentityUserName, SessionMfaAuthenticated, SourceIpAddress, AWSRegion, EventSource, AdditionalEventData, RequestParameters, ResponseElements, UserIdentityArn
| extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))
| extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityAccountId

queryFrequency: 1d
triggerOperator: gt
tactics:
- PrivilegeEscalation
description: |
    'Detected usage of AttachUserPolicy/AttachGroupPolicy/AttachRolePolicy on admin managed policy. Attackers could use these operations for privilege escalation. Verify these actions with the user.'
status: Available
relevantTechniques:
- T1484
name: Privilege escalation with admin managed policy
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_PrivilegeEscalationAdminManagedPolicy.yaml
severity: Medium
triggerThreshold: 0
version: 1.0.0
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
query: |
  AWSCloudTrail
  | where  EventName in ("AttachUserPolicy","AttachRolePolicy","AttachGroupPolicy") and isempty(ErrorCode) and isempty(ErrorMessage)
  | where tostring(parse_json(RequestParameters).policyArn) contains "Admin" and tostring(parse_json(RequestParameters).policyArn) !contains "FullAccess" and tostring(parse_json(RequestParameters).policyArn) !startswith "arn:aws:iam::aws:policy/AdministratorAccess"
  | project TimeGenerated, EventName, EventTypeName, UserIdentityAccountId, UserIdentityPrincipalid, UserAgent,UserIdentityUserName, SessionMfaAuthenticated, SourceIpAddress, AWSRegion, EventSource, AdditionalEventData, RequestParameters, ResponseElements, UserIdentityArn
  | extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))
  | extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityAccountId  
id: 49ce5322-60d7-4b02-ad79-99f650aa5790
requiredDataConnectors:
- connectorId: AWS
  dataTypes:
  - AWSCloudTrail
kind: Scheduled
queryPeriod: 1d

{
  "$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/49ce5322-60d7-4b02-ad79-99f650aa5790')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/49ce5322-60d7-4b02-ad79-99f650aa5790')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "Privilege escalation with admin managed policy",
        "description": "'Detected usage of AttachUserPolicy/AttachGroupPolicy/AttachRolePolicy on admin managed policy. Attackers could use these operations for privilege escalation. Verify these actions with the user.'\n",
        "severity": "Medium",
        "enabled": true,
        "query": "AWSCloudTrail\n| where  EventName in (\"AttachUserPolicy\",\"AttachRolePolicy\",\"AttachGroupPolicy\") and isempty(ErrorCode) and isempty(ErrorMessage)\n| where tostring(parse_json(RequestParameters).policyArn) contains \"Admin\" and tostring(parse_json(RequestParameters).policyArn) !contains \"FullAccess\" and tostring(parse_json(RequestParameters).policyArn) !startswith \"arn:aws:iam::aws:policy/AdministratorAccess\"\n| project TimeGenerated, EventName, EventTypeName, UserIdentityAccountId, UserIdentityPrincipalid, UserAgent,UserIdentityUserName, SessionMfaAuthenticated, SourceIpAddress, AWSRegion, EventSource, AdditionalEventData, RequestParameters, ResponseElements, UserIdentityArn\n| extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))\n| extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityAccountId\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1484"
        ],
        "alertRuleTemplateName": "49ce5322-60d7-4b02-ad79-99f650aa5790",
        "customDetails": null,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "IPCustomEntity"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_PrivilegeEscalationAdminManagedPolicy.yaml",
        "status": "Available",
        "templateVersion": "1.0.0"
      }
    }
  ]
}