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
Suspicious Access to Sensitive File Extensions
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Suspicious Access to Sensitive File Extensions
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: Suspicious Access to Sensitive File Extensions
id: 91c945bc-2ad1-4799-a591-4d00198a1215
related:
- id: 286b47ed-f6fe-40b3-b3a8-35129acd43bc
type: similar
status: test
description: Detects known sensitive file extensions accessed on a network share
references:
- Internal Research
author: Samir Bousseaden
date: 2019-04-03
modified: 2025-10-17
tags:
- attack.collection
- attack.t1039
logsource:
product: windows
service: security
detection:
selection:
EventID: 5145
RelativeTargetName|endswith:
- '.bak'
- '.dmp'
- '.edb'
- '.kirbi'
- '.msg'
- '.nsf'
- '.nst'
- '.oab'
- '.ost'
- '.pst'
- '.rdp'
# - '\groups.xml' # Commented out: groups.xml is accessed legitimately by Group Policy processing; high FP rate in enterprise environments
condition: selection
falsepositives:
- Help Desk operator doing backup or re-imaging end user machine or backup software
- Users working with these data types or exchanging message files
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/builtin/security/win_security_susp_raccess_sensitive_fext.yml