Elastic Security Detection Rules

AWS IAM API Calls via Temporary Session Tokens

Last updated a month ago on 2025-04-16
Created a month ago on 2025-04-16

About

Detects use of sensitive AWS STS or IAM API operations using temporary credentials (session tokens starting with 'ASIA'). This may indicate credential theft or abuse of elevated access via a stolen session. It is not common for legitimate users to perform sensitive IAM operations with temporary session tokens.
Tags
Domain: CloudData Source: AWSData Source: Amazon Web ServicesData Source: AWS CloudTrailData Source: AWS IAMData Source: AWS STSTactic: PersistenceTactic: Privilege EscalationLanguage: kuery
Severity
low
Risk Score
21
MITRE ATT&CK™

Persistence (TA0003)(opens in a new tab or window)

↳ Account Manipulation (T1098)(opens in a new tab or window)

False Positive Examples
Some CI/CD pipelines or administrative users may use session tokens. Review user context, IP, and timing to validate.
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: ("iam.amazonaws.com")
    and aws.cloudtrail.user_identity.type: "IAMUser"
    and aws.cloudtrail.user_identity.access_key_id: ASIA*

Install detection rules in Elastic Security

Detect AWS IAM API Calls via Temporary Session Tokens 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).