AWS EC2 Network Access Control List Deletionedit
Identifies the deletion of an Amazon Elastic Compute Cloud (EC2) network access control list (ACL) or one of its ingress/egress entries.
Rule type: query
Rule indices:
- filebeat-*
- logs-aws*
Severity: medium
Risk score: 47
Runs every: 10m
Searches indices from: now-60m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
- https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ec2/delete-network-acl.html
- https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DeleteNetworkAcl.html
- https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ec2/delete-network-acl-entry.html
- https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DeleteNetworkAclEntry.html
Tags:
- Domain: Cloud
- Data Source: AWS
- Data Source: Amazon Web Services
- Use Case: Network Security Monitoring
- Tactic: Defense Evasion
Version: 103
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
event.dataset:aws.cloudtrail and event.provider:ec2.amazonaws.com and event.action:(DeleteNetworkAcl or DeleteNetworkAclEntry) and event.outcome:success
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Impair Defenses
- ID: T1562
- Reference URL: https://attack.mitre.org/techniques/T1562/
-
Sub-technique:
- Name: Disable or Modify Tools
- ID: T1562.001
- Reference URL: https://attack.mitre.org/techniques/T1562/001/