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
OneNote Attachment File Dropped In Suspicious Location
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
OneNote Attachment File Dropped In Suspicious Location
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: OneNote Attachment File Dropped In Suspicious Location
id: 7fd164ba-126a-4d9c-9392-0d4f7c243df0
status: test
description: Detects creation of files with the ".one"/".onepkg" extension in suspicious or uncommon locations. This could be a sign of attackers abusing OneNote attachments
references:
- https://www.bleepingcomputer.com/news/security/hackers-now-use-microsoft-onenote-attachments-to-spread-malware/
- https://blog.osarmor.com/319/onenote-attachment-delivers-asyncrat-malware/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-01-22
modified: 2023-09-19
tags:
- attack.defense-evasion
logsource:
category: file_event
product: windows
detection:
selection:
TargetFilename|contains:
# Note: add more common locations for drops such as download folders and the like. Or baseline legitimate locations and alert on everything else
- '\AppData\Local\Temp\'
- '\Users\Public\'
- '\Windows\Temp\'
- ':\Temp\'
TargetFilename|endswith:
- '.one'
- '.onepkg'
filter_main_onenote:
Image|contains: ':\Program Files\Microsoft Office\'
Image|endswith: '\ONENOTE.EXE'
condition: selection and not 1 of filter_main_*
falsepositives:
- Legitimate usage of ".one" or ".onepkg" files from those locations
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/file/file_event/file_event_win_office_onenote_files_in_susp_locations.yml