View a misconfiguration's related logs

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Datadog CSM’s Related Logs feature allows you to quickly identify cloud audit logs that relate to a specific cloud resource. When investigating a misconfiguration, this can help you understand:

  • Who created the resource
  • Who last modified the resource, possibly introducing the misconfiguration

CloudTrail events lack a standardized format that would allow a generic Logs query, but Related Logs uses an internal service that maps resource attributes to CloudTrail event fields, enabling Datadog to identify related CloudTrail logs.

Here’s a sample Logs query that Related Logs automatically generates and runs to find related CloudTrail logs. In this example, the query looks for logs that relate to a specific EC2 instance:

source:cloudtrail @recipientAccountId:172597598159 @awsRegion:us-east-1 @readOnly:false -status:error (@eventSource:ec2.amazonaws.com AND (@requestParameters.instanceId:"i-0d52853076ed2a357" OR @requestParameters.instancesSet.items.instanceId:"i-0d52853076ed2a357" OR @responseElements.instancesSet.items.instanceId:"i-0d52853076ed2a357" OR @requestParameters.resourcesSet.items.resourceId:"i-0d52853076ed2a357" OR @responseElements.ReplaceIamInstanceProfileAssociationResponse.iamInstanceProfileAssociation.instanceId:"i-0d52853076ed2a357" OR @responseElements.CreateFleetResponse.fleetInstanceSet.item.instanceIds.item:"i-0d52853076ed2a357" OR @requestParameters.CreateReplaceRootVolumeTaskRequest.InstanceId:"i-0d52853076ed2a357" OR @requestParameters.ModifyInstanceMetadataOptionsRequest.InstanceId:"i-0d52853076ed2a357" OR @serviceEventDetails.instanceIdSet:"i-0d52853076ed2a357" OR @requestParameters.AssociateIamInstanceProfileRequest.InstanceId:"i-0d52853076ed2a357" OR @requestParameters.CreateSnapshotsRequest.InstanceSpecification.InstanceId:"i-0d52853076ed2a357"))

Prerequisites

  • To use Related Logs, you need to set up CloudTrail logs.

  • Related Logs supports the following AWS resources:

    • aws_acm
    • aws_cloudfront_distribution
    • aws_ec2_instance
    • aws_ecs_service
    • aws_ecr_repository
    • aws_iam_account
    • aws_iam_group
    • aws_iam_policy
    • aws_iam_role
    • aws_iam_user
    • aws_lambda_function
    • aws_opensearch_domain
    • aws_rds_instance
    • aws_s3_bucket
    • aws_security_group
    • aws_sns_topic
    • aws_sqs_queue
    • aws_subnet

    To request additional resource types, fill out the feedback form.

  1. In the Misconfigurations Explorer, open a misconfiguration for a supported resource type.
  2. Click the Related Logs tab. Datadog queries your CloudTrail logs for events related to the cloud resource.

Search through a larger timeframe

By default, Related Logs looks through the last two weeks of related CloudTrail logs. To extend the search to a larger timeframe:

  1. While viewing a misconfiguration’s related logs, click View All Related Logs. The search used to populate the list opens in Log Explorer.
  2. In the upper-right corner, change the timeframe of the search.

Note: Related Logs only display CloudTrail logs within your retention period. To store CloudTrail logs for an extended period of time in a cost-effective manner, Datadog recommends using Flex Logs.