Rules: First Seen S3 Bucket ACL Enumeration by User
Threat actors may collect information from AWS S3 buckets, including enumeration of access they have to such resources.
| Detail | Value |
|---|---|
| Type | First Seen |
| Category | Collection |
| Apply Risk to Entities | user_username |
| Signal Name | First Seen S3 Bucket ACL Enumeration by User |
| Summary Expression | {{user_username}} has enumerated an AWS S3 Bucket ACL for the first time since the baseline period. |
| Retention Window | 7776000000 |
| Baseline Window | 3024000000 |
| Baseline Type | PER_ENTITY |
| Score/Severity | Static: 3 |
| Enabled by Default | True |
| Prototype | False |
| Tags | _mitreAttackTactic:TA0009, _mitreAttackTechnique:T1530 |
| Origin | Field |
|---|---|
| Normalized Schema | action |
| Direct from Record | fields["userIdentity.type"] |
| Normalized Schema | metadata_product |
| Normalized Schema | metadata_vendor |
| Normalized Schema | user_username |
| Normalized Schema | user_username_role |