Analytics BIOC Informational
✕

AWS network ACL rule creation

An AWS network ACL rule was created with a specific rule number.

Module:
Cortex Cloud
Licensed by:
Cloud Runtime Security (CRS)
Data source:
AWS Audit Log
ATT&CK tactics: Persistence (TA0003) Exfiltration (TA0010)
ATT&CK techniques: External Remote Services (T1133) Exfiltration Over Alternative Protocol (T1048)
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.

Test period:
N/A (single event)
Deduplication:
1 Day