Rules: AWS CloudTrail - IAM CreateUser Action Observed
This signal fires for all observances of the CreateUser action in the IAM event source. Creating AWS users is likely a benign, infrequent activity. Hostile actors will create users to persist access. Use this signal in context of other activity to determine intent.
| Detail | Value |
|---|---|
| Type | Templated Match |
| Category | Persistence |
| Apply Risk to Entities | device_hostname, device_ip, user_username, srcDevice_ip |
| Signal Name | AWS CloudTrail - IAM CreateUser Action Observed |
| Summary Expression | User {{changeTarget}} created by user: {{user_username}} |
| Score/Severity | Static: 2 |
| Enabled by Default | True |
| Prototype | False |
| Tags | _mitreAttackTactic:TA0003, _mitreAttackTechnique:T1136, _mitreAttackTechnique:T1136.003 |
| Origin | Field |
|---|---|
| Normalized Schema | action |
| Normalized Schema | application |
| Normalized Schema | device_hostname |
| Normalized Schema | device_ip |
| Normalized Schema | metadata_product |
| Normalized Schema | metadata_vendor |
| Normalized Schema | srcDevice_ip |
| Normalized Schema | user_username |