Rules: AWS CloudTrail Network Access Control List Deleted
Enforcing network-access controls is one of the defensive mechanisms used by cloud administrators to restrict access to a cloud instance. After the attacker has gained control of the console by compromising an admin account, they can delete a network ACL and gain access to the instance from anywhere.
| Detail | Value |
|---|---|
| Type | Templated Match |
| Category | Defense Evasion |
| Apply Risk to Entities | device_ip, srcDevice_hostname, srcDevice_ip, device_hostname, user_username |
| Signal Name | AWS CloudTrail Network Access Control List Deleted |
| Summary Expression | {{action}} performed by user: {{user_username}} |
| Score/Severity | Static: 3 |
| Enabled by Default | True |
| Prototype | False |
| Tags | _mitreAttackTactic:TA0005, _mitreAttackTechnique:T1562, _mitreAttackTechnique:T1562.007 |
| Origin | Field |
|---|---|
| Normalized Schema | action |
| Normalized Schema | device_hostname |
| Normalized Schema | device_ip |
| Normalized Schema | metadata_deviceEventId |
| Normalized Schema | metadata_product |
| Normalized Schema | metadata_vendor |
| Normalized Schema | srcDevice_hostname |
| Normalized Schema | srcDevice_ip |
| Normalized Schema | user_username |