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
Creation Of An User Account
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Creation Of An User Account
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: Creation Of An User Account
id: 759d0d51-bc99-4b5e-9add-8f5b2c8e7512
status: test
description: Detects the creation of a new user account. Such accounts may be used for persistence that do not require persistent remote access tools to be deployed on the system.
references:
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/sec-understanding_audit_log_files
- https://access.redhat.com/articles/4409591#audit-record-types-2
- https://www.youtube.com/watch?v=VmvY5SQm5-Y&ab_channel=M45C07
author: Marie Euler, Pawel Mazur
date: 2020-05-18
modified: 2022-12-20
tags:
- attack.t1136.001
- attack.persistence
logsource:
product: linux
service: auditd
detection:
selection_syscall_record_type:
type: 'SYSCALL'
exe|endswith: '/useradd'
selection_add_user_record_type:
type: 'ADD_USER' # This is logged without having to configure audit rules on both Ubuntu and Centos
condition: 1 of selection_*
falsepositives:
- Admin activity
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/linux/auditd/syscall/lnx_auditd_create_account.yml