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 local pySigma backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,731
Ready to search
Backends
17
Loaded from pysigma-node
pySigma Versions
10
Newest: 1.3.3
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
Tamper With Sophos AV Registry Keys
Target Profile
Splunk
Splunk through pysigma-backend-splunk.
Format Mode
Default
Default pySigma output mode for this backend.
Conversion Output
Tamper With Sophos AV Registry Keys
Using Splunk · Default · pySigma 1.3.3
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion1.3.3
title: Tamper With Sophos AV Registry Keys
id: 9f4662ac-17ca-43aa-8f12-5d7b989d0101
status: test
description: Detects tamper attempts to sophos av functionality via registry key modification
references:
- https://redacted.com/blog/bianlian-ransomware-gang-gives-it-a-go/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-02
modified: 2023-08-17
tags:
- attack.defense-evasion
- attack.t1562.001
logsource:
category: registry_set
product: windows
detection:
selection:
TargetObject|contains:
- '\Sophos Endpoint Defense\TamperProtection\Config\SAVEnabled'
- '\Sophos Endpoint Defense\TamperProtection\Config\SEDEnabled'
- '\Sophos\SAVService\TamperProtection\Enabled'
Details: DWORD (0x00000000)
condition: selection
falsepositives:
- Some FP may occur when the feature is disabled by the AV itself, you should always investigate if the action was legitimate
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/registry/registry_set/registry_set_sophos_av_tamper.yml