Changes to internet facing AWS RDS Database instances

let EventNameList = dynamic(["AuthorizeDBSecurityGroupIngress","CreateDBSecurityGroup","DeleteDBSecurityGroup","RevokeDBSecurityGroupIngress"]);
AWSCloudTrail
| where EventName in~ (EventNameList)
| summarize StartTimeUtc = min(TimeGenerated), EndTimeUtc = max(TimeGenerated) by EventName, EventTypeName, UserIdentityAccountId, UserIdentityPrincipalid, UserAgent, UserIdentityUserName, SessionMfaAuthenticated, SourceIpAddress, AWSRegion, EventSource, AdditionalEventData, ResponseElements
| extend timestamp = StartTimeUtc, AccountCustomEntity = UserIdentityUserName, IPCustomEntity = SourceIpAddress

version: 1.0.1
status: Available
queryFrequency: 1d
requiredDataConnectors:
- connectorId: AWS
  dataTypes:
  - AWSCloudTrail
- connectorId: AWSS3
  dataTypes:
  - AWSCloudTrail
entityMappings:
- fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
  entityType: IP
kind: Scheduled
queryPeriod: 1d
severity: Low
query: |
  let EventNameList = dynamic(["AuthorizeDBSecurityGroupIngress","CreateDBSecurityGroup","DeleteDBSecurityGroup","RevokeDBSecurityGroupIngress"]);
  AWSCloudTrail
  | where EventName in~ (EventNameList)
  | summarize StartTimeUtc = min(TimeGenerated), EndTimeUtc = max(TimeGenerated) by EventName, EventTypeName, UserIdentityAccountId, UserIdentityPrincipalid, UserAgent, UserIdentityUserName, SessionMfaAuthenticated, SourceIpAddress, AWSRegion, EventSource, AdditionalEventData, ResponseElements
  | extend timestamp = StartTimeUtc, AccountCustomEntity = UserIdentityUserName, IPCustomEntity = SourceIpAddress  
triggerOperator: gt
id: 8c2ef238-67a0-497d-b1dd-5c8a0f533e25
description: |
  'Amazon Relational Database Service (RDS) is scalable relational database in the cloud.
  If your organization have one or more AWS RDS Databases running, monitoring changes to especially internet facing AWS RDS (Relational Database Service)
  Once alerts triggered, validate if changes observed are authorized and adhere to change control policy.
  More information: https://medium.com/@GorillaStack/the-most-important-aws-cloudtrail-security-events-to-track-a5b9873f8255
  and RDS API Reference Docs: https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_Operations.html'  
triggerThreshold: 0
name: Changes to internet facing AWS RDS Database instances
relevantTechniques:
- T1098
tactics:
- Persistence
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_ChangeToRDSDatabase.yaml

{
  "$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/8c2ef238-67a0-497d-b1dd-5c8a0f533e25')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/8c2ef238-67a0-497d-b1dd-5c8a0f533e25')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "Changes to internet facing AWS RDS Database instances",
        "description": "'Amazon Relational Database Service (RDS) is scalable relational database in the cloud.\nIf your organization have one or more AWS RDS Databases running, monitoring changes to especially internet facing AWS RDS (Relational Database Service)\nOnce alerts triggered, validate if changes observed are authorized and adhere to change control policy.\nMore information: https://medium.com/@GorillaStack/the-most-important-aws-cloudtrail-security-events-to-track-a5b9873f8255\nand RDS API Reference Docs: https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_Operations.html'\n",
        "severity": "Low",
        "enabled": true,
        "query": "let EventNameList = dynamic([\"AuthorizeDBSecurityGroupIngress\",\"CreateDBSecurityGroup\",\"DeleteDBSecurityGroup\",\"RevokeDBSecurityGroupIngress\"]);\nAWSCloudTrail\n| where EventName in~ (EventNameList)\n| summarize StartTimeUtc = min(TimeGenerated), EndTimeUtc = max(TimeGenerated) by EventName, EventTypeName, UserIdentityAccountId, UserIdentityPrincipalid, UserAgent, UserIdentityUserName, SessionMfaAuthenticated, SourceIpAddress, AWSRegion, EventSource, AdditionalEventData, ResponseElements\n| extend timestamp = StartTimeUtc, AccountCustomEntity = UserIdentityUserName, IPCustomEntity = SourceIpAddress\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence"
        ],
        "techniques": [
          "T1098"
        ],
        "alertRuleTemplateName": "8c2ef238-67a0-497d-b1dd-5c8a0f533e25",
        "customDetails": null,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "IPCustomEntity"
              }
            ]
          }
        ],
        "status": "Available",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_ChangeToRDSDatabase.yaml",
        "templateVersion": "1.0.1"
      }
    }
  ]
}