Create Iam Group (aws)

Platform	Author	Last Update
aws	Nick Jones	2024-12-02

An adversary may attempt to create an IAM group within an account, to alter legitimate access or block administrative activity.

MITRE IDs

T1098

Required Permissions

iam:CreateGroup

Required Parameters

Name	Type	Description	Example Value
group	str	IAM group to create	example_group

Attacker Action

aws iam create-group --group-name example_group

Detection Case

ELK query

When logs are ingested into ELK, the following Lucene query can be used to identify relevant events.

eventName:CreateGroup AND eventSource:*.iam.amazonaws.com

Sigma Definition

---
title: Create IAM group
id: 4b33f970-ef9d-49e0-ae7d-040e60d96415
status: experimental
author: Nick Jones
date: 2024-12-02
description: An adversary may attempt to create an IAM group within an account, to alter legitimate access or block administrative activity.
logsource:
  service: cloudtrail
detection:
  selection_source:
    - eventSource: "*.iam.amazonaws.com"
  events:
    - eventName: "CreateGroup"
  condition: selection_source and events
level: low
tags:
  - attack.T1098


falsepositives:
  - Developers making legitimate changes to the environment. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.