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
User Added To Highly Privileged Group
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
User Added To Highly Privileged Group
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: User Added To Highly Privileged Group
id: 10fb649c-3600-4d37-b1e6-56ea90bb7e09 # Privileged groups
related:
- id: ffa28e60-bdb1-46e0-9f82-05f7a61cc06e # Remote Desktop groups
type: similar
- id: ad720b90-25ad-43ff-9b5e-5c841facc8e5 # Admin groups
type: similar
status: test
description: Detects addition of users to highly privileged groups via "Net" or "Add-LocalGroupMember".
references:
- https://www.huntress.com/blog/slashandgrab-screen-connect-post-exploitation-in-the-wild-cve-2024-1709-cve-2024-1708
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-02-23
tags:
- attack.privilege-escalation
- attack.persistence
- attack.t1098
logsource:
category: process_creation
product: windows
detection:
selection_main:
- CommandLine|contains|all:
# net.exe
- 'localgroup '
- ' /add'
- CommandLine|contains|all:
# powershell.exe
- 'Add-LocalGroupMember '
- ' -Group '
selection_group:
CommandLine|contains:
- 'Group Policy Creator Owners'
- 'Schema Admins'
condition: all of selection_*
falsepositives:
- Administrative activity that must be investigated
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/process_creation/proc_creation_win_susp_add_user_privileged_group.yml