Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
This studio is built around Phoenix's own rule corpus, not a blank editor. Search by title or rule id, choose a live sigma-cli backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,707
Ready to search
Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
LoadBalancer Security Group Modification
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
LoadBalancer Security Group Modification
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: LoadBalancer Security Group Modification
id: 7a4409fc-f8ca-45f6-8006-127d779eaad9
status: test
description: |
Detects changes to the security groups associated with an Elastic Load Balancer (ELB) or Application Load Balancer (ALB).
This can indicate that a misconfiguration allowing more traffic into the system than required, or could indicate that an attacker is attempting to enable new connections into a VPC or subnet controlled by the account.
references:
- https://www.gorillastack.com/blog/real-time-events/important-aws-cloudtrail-security-events-tracking/
author: jamesc-grafana
date: 2024-07-11
tags:
- attack.initial-access
- attack.t1190
logsource:
product: aws
service: cloudtrail
detection:
selection:
eventSource: 'elasticloadbalancing.amazonaws.com'
eventName:
- 'ApplySecurityGroupsToLoadBalancer'
- 'SetSecurityGroups'
condition: selection
falsepositives:
- Repurposing of an ELB or ALB to serve a different or additional application
- Changes to security groups to allow for new services to be deployed
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/cloud/aws/cloudtrail/aws_cloudtrail_security_group_change_loadbalancer.yml