Elastic Security Detection Rules

AWS IAM Deactivation of MFA Device

Last updated a month ago on 2024-10-25
Created 4 years ago on 2020-05-26

About

Identifies the deactivation of a specified multi-factor authentication (MFA) device and removes it from association with the user name for which it was originally enabled. In AWS Identity and Access Management (IAM), a device must be deactivated before it can be deleted.
Tags
Domain: CloudData Source: AWSData Source: Amazon Web ServicesData Source: AWS IAMTactic: ImpactTactic: Persistence
Severity
medium
Risk Score
47
MITRE ATT&CK™

Impact (TA0040)(opens in a new tab or window)

↳ Account Access Removal (T1531)(opens in a new tab or window)

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

↳ Modify Authentication Process (T1556)(opens in a new tab or window)

False Positive Examples
A MFA device may be deactivated by a system or network administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. MFA device deactivations from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
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 event.action:(DeactivateMFADevice or DeleteVirtualMFADevice) and event.outcome:success

Install detection rules in Elastic Security

Detect AWS IAM Deactivation of MFA Device 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).