AWS SSM Command Document Created by Rare User

Last updated a month ago on 2024-11-07

Created 2 months ago on 2024-11-01

About

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.

Tags

Domain: CloudData Source: AWSData Source: Amazon Web ServicesData Source: AWS SNSData Source: AWS Systems ManagerUse Case: Threat DetectionTactic: Execution

Severity

low

Risk Score

MITRE ATT&CK™

Execution (TA0002)(opens in a new tab or window)

False Positive Examples

Legitimate users may create SSM command documents for legitimate purposes. Ensure that the document is authorized and the user is known before taking action.

License

Elastic License v2(opens in a new tab or window)

Definition

Rule Type: New Terms Rule
Integration Pack: Prebuilt Security Detection Rules
Index Patterns: filebeat-*logs-aws.cloudtrail-*
Related Integrations: aws(opens in a new tab or window)
Query

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*

Install detection rules in Elastic Security

Detect AWS SSM Command Document Created by Rare User in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).