CloudTrail configuration changes should be monitored
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Description
Real-time monitoring of API calls can be achieved by directing CloudTrail logs to CloudWatch logs and establishing corresponding metric filters and alarms. It is recommended to establish a metric filter and alarm for detecting changes to CloudTrail’s configurations to ensure sustained visibility of activities performed in the AWS account.
For instructions on setting up CloudWatch metric filters and alarms for CloudTrail configuration changes, refer to the AWS CloudWatch Alarms for CloudTrail User Guide.
aws logs put-metric-filter --log-group-name <cloudtrail_log_group_name> \
--filter-name <cloudtrail_cfg_changes_metric> --metric-transformations \
metricName=<cloudtrail_cfg_changes_metric>,metricNamespace='CISBenchmark',metricValue=1 \
--filter-pattern '{ ($.eventName = CreateTrail) || ($.eventName = UpdateTrail) || ($.eventName = DeleteTrail) || \
($.eventName = StartLogging) || ($.eventName = StopLogging) }'
You can choose your own metricName and metricNamespace strings. Use the same metricNamespace for all Foundations Benchmark metrics to group them together.
