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
Potential Fake Instance Of Hxtsr.EXE Executed
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Fake Instance Of Hxtsr.EXE Executed
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: Potential Fake Instance Of Hxtsr.EXE Executed
id: 4e762605-34a8-406d-b72e-c1a089313320
status: test
description: |
HxTsr.exe is a Microsoft compressed executable file called Microsoft Outlook Communications.
HxTsr.exe is part of Outlook apps, because it resides in a hidden "WindowsApps" subfolder of "C:\Program Files".
Any instances of hxtsr.exe not in this folder may be malware camouflaging itself as HxTsr.exe
references:
- Internal Research
author: Sreeman
date: 2020-04-17
modified: 2024-02-08
tags:
- attack.defense-evasion
- attack.t1036
logsource:
product: windows
category: process_creation
detection:
# TODO: Link this to the more generic system process rule
selection:
Image|endswith: '\hxtsr.exe'
filter_main_hxtsr:
Image|contains: ':\program files\windowsapps\microsoft.windowscommunicationsapps_'
Image|endswith: '\hxtsr.exe'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: medium
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_hxtsr_masquerading.yml