Possible AWS STS GetSessionToken Misuse (via cloudtrail)

title: Possible AWS STS GetSessionToken Misuse (via cloudtrail)
id: ae560058-8e35-5b57-8b18-a7a5e50a8a54
status: stable
description: This rule detects the anomalous use of GetSessionToken. Tokens could be created and used by adversaries to move laterally and escalate privileges.
references:
    - https://attack.mitre.org/techniques/T1550/001/
    - https://attack.mitre.org/techniques/T1550/
    - https://attack.mitre.org/techniques/T1548/
    - https://github.com/elastic/detection-rules/pull/1213
    - https://docs.aws.amazon.com/STS/latest/APIReference/API_GetSessionToken.html
author: Huntrule Team
date: 2026-04-03
tags:
    - attack.lateral-movement
    - attack.privilege-escalation
    - attack.t1548
    - attack.t1550
    - attack.t1550.001
logsource:
    product: aws
    service: cloudtrail
detection:
    selection:
        eventSource: sts.amazonaws.com
        eventName: GetSessionToken
        userIdentity.type: IAMUser
    condition: selection
falsepositives:
    - Unknown
level: low