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
Remove Immutable File Attribute
Target Profile
Splunk
Splunk through pysigma-backend-splunk.
Format Mode
Default
Default pySigma output mode for this backend.
Conversion Output
Remove Immutable File Attribute
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: Remove Immutable File Attribute
id: 34979410-e4b5-4e5d-8cfb-389fdff05c12
related:
- id: a5b977d6-8a81-4475-91b9-49dbfcd941f7
type: derived
status: test
description: Detects usage of the 'chattr' utility to remove immutable file attribute.
references:
- https://www.trendmicro.com/en_us/research/22/i/how-malicious-actors-abuse-native-linux-tools-in-their-attacks.html
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-15
tags:
- attack.defense-evasion
- attack.t1222.002
logsource:
product: linux
category: process_creation
detection:
selection:
Image|endswith: '/chattr'
CommandLine|contains: ' -i '
condition: selection
falsepositives:
- Administrator interacting with immutable files (e.g. for instance backups).
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/linux/process_creation/proc_creation_lnx_chattr_immutable_removal.yml