LoFP / legitimate users may create ssm command documents for legitimate purposes. ensure that the document is authorized and the user is known before taking action.

Techniques

Sample rules

AWS SSM Command Document Created by Rare User

• source: elastic
• technicques:

Description

Identifies when an AWS Systems Manager (SSM) command document is created by a user who does not typically perform this action. Adversaries may create SSM command documents to execute commands on managed instances, potentially leading to unauthorized access, command and control, data exfiltration and more.

Detection logic

event.dataset: "aws.cloudtrail"
    and event.provider: "ssm.amazonaws.com"
    and event.action: "CreateDocument"
    and event.outcome: "success"
    and aws.cloudtrail.response_elements: *documentType=Command*