Possible Amazon SSM Agent Hijacking (via process_creation)

This rule detects potential Amazon SSM agent hijack attempts as outlined in the Mitiga research report.

SigmamediumWindowsv1
sigma
title: Possible Amazon SSM Agent Hijacking (via process_creation)
id: 0504f153-601f-58d5-bd4a-f0081b451d30
status: stable
description: This rule detects potential Amazon SSM agent hijack attempts as outlined in the Mitiga research report.
references:
    - https://attack.mitre.org/techniques/T1219/002/
    - https://www.mitiga.io/blog/mitiga-security-advisory-abusing-the-ssm-agent-as-a-remote-access-trojan
    - https://www.bleepingcomputer.com/news/security/amazons-aws-ssm-agent-can-be-used-as-post-exploitation-rat-malware/
    - https://www.helpnetsecurity.com/2023/08/02/aws-instances-attackers-access/
author: Huntrule Team
date: 2026-02-27
tags:
    - attack.command-and-control
    - attack.persistence
    - attack.t1219.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\amazon-ssm-agent.exe'
        CommandLine|contains|all:
            - '-register '
            - '-code '
            - '-id '
            - '-region '
    condition: selection
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.