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
Remote AppX Package Downloaded from File Sharing or CDN Domain
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Remote AppX Package Downloaded from File Sharing or CDN Domain
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: Remote AppX Package Downloaded from File Sharing or CDN Domain
id: 8b48ad89-10d8-4382-a546-50588c410f0d
status: test
description: |
Detects an appx package that was added to the pipeline of the "to be processed" packages which was downloaded from a file sharing or CDN domain.
references:
- https://www.sentinelone.com/labs/inside-malicious-windows-apps-for-malware-deployment/
- https://learn.microsoft.com/en-us/windows/win32/appxpkg/troubleshooting
- https://news.sophos.com/en-us/2021/11/11/bazarloader-call-me-back-attack-abuses-windows-10-apps-mechanism/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-01-11
modified: 2025-12-10
tags:
- attack.defense-evasion
logsource:
product: windows
service: appxdeployment-server
detection:
selection:
EventID: 854
Path|contains:
- '.githubusercontent.com' # Includes both gists and github repositories / Michael Haag (idea)
- 'anonfiles.com'
- 'cdn.discordapp.com'
- 'ddns.net'
- 'dl.dropboxusercontent.com'
- 'ghostbin.co'
- 'github.com'
- 'glitch.me'
- 'gofile.io'
- 'hastebin.com'
- 'mediafire.com'
- 'mega.nz'
- 'onrender.com'
- 'pages.dev'
- 'paste.ee'
- 'pastebin.com'
- 'pastebin.pl'
- 'pastetext.net'
- 'privatlab.com'
- 'privatlab.net'
- 'send.exploit.in'
- 'sendspace.com'
- 'storage.googleapis.com'
- 'storjshare.io'
- 'supabase.co'
- 'temp.sh'
- 'transfer.sh'
- 'trycloudflare.com'
- 'ufile.io'
- 'w3spaces.com'
- 'workers.dev'
condition: selection
falsepositives:
- Unlikely, unless the organization uses file sharing or CDN services to distribute internal applications.
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/builtin/appxdeployment_server/win_appxdeployment_server_appx_downloaded_from_file_sharing_domains.yml