Synopsis
Activation Period |
14 Days |
Training Period |
30 Days |
Test Period |
N/A (single event) |
Deduplication Period |
1 Day |
Required Data |
|
Detection Modules |
Cloud |
Detector Tags |
|
ATT&CK Tactic |
|
ATT&CK Technique |
|
Severity |
Informational |
Description
An AWS network ACL rule was created with a specific rule number.
Attacker's Goals
Deleting an ingress rule may allow an attacker to gain persistence in the cloud environment.
Deleting an egress rule may enable data exfiltration.
Investigative actions
- Check the VPC affected by this change.
- Verify the rule number (as rules are applied in order).
- Determine whether the rule is ingress or egress.