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
SafeBoot Registry Key Deleted Via Reg.EXE
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
SafeBoot Registry Key Deleted Via Reg.EXE
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: SafeBoot Registry Key Deleted Via Reg.EXE
id: fc0e89b5-adb0-43c1-b749-c12a10ec37de
related:
- id: d7662ff6-9e97-4596-a61d-9839e32dee8d
type: similar
status: test
description: Detects execution of "reg.exe" commands with the "delete" flag on safe boot registry keys. Often used by attacker to prevent safeboot execution of security products
references:
- https://www.trendmicro.com/en_us/research/22/e/avoslocker-ransomware-variant-abuses-driver-file-to-disable-anti-Virus-scans-log4shell.html
author: Nasreddine Bencherchali (Nextron Systems), Tim Shelton
date: 2022-08-08
modified: 2023-02-04
tags:
- attack.defense-evasion
- attack.t1562.001
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: 'reg.exe'
- OriginalFileName: 'reg.exe'
selection_delete:
CommandLine|contains|all:
- ' delete '
- '\SYSTEM\CurrentControlSet\Control\SafeBoot'
condition: all of selection_*
falsepositives:
- Unlikely
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_reg_delete_safeboot.yml