Potential Malicious Usage of CloudTrail System Manager

Detect when System Manager successfully executes commands against an instance.

Detection logic

Platform: Identity Provider Linux macOS Office Suite SaaS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: aws
Log source service: cloudtrail

Legitimate users may have to use SSM to perform actions against machines in the Cloud to update or maintain them
There are legitimate uses of SSM to send commands to EC2 instances

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
github.com/elastic/detection-rules/blob/v8.6.0/rules/integrations/aws/initial_access_via_system_manager.toml	Tool	Only this detection cites it