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.

Browse Rules Explore Ecosystem

Indexed Rules

3,707

Ready to search

Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

Tune Translation

Active Rule

Suspicious New Instance Of An Office COM Object

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Suspicious New Instance Of An Office COM Object

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 New Instance Of An Office COM Object
id: 9bdaf1e9-fdef-443b-8081-4341b74a7e28
status: test
description: |
    Detects an svchost process spawning an instance of an office application. This happens when the initial word application creates an instance of one of the Office COM objects such as 'Word.Application', 'Excel.Application', etc.
    This can be used by malicious actors to create malicious Office documents with macros on the fly. (See vba2clr project in the references)
references:
    - https://learn.microsoft.com/en-us/previous-versions/office/troubleshoot/office-developer/automate-word-create-file-using-visual-basic
    - https://github.com/med0x2e/vba2clr
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-10-13
modified: 2023-12-19
tags:
    - attack.execution
    - attack.defense-evasion
    - detection.threat-hunting
logsource:
    product: windows
    category: process_creation
detection:
    selection:
        ParentImage|endswith: '\svchost.exe'
        Image|endswith:
            - '\eqnedt32.exe'
            - '\excel.exe'
            - '\msaccess.exe'
            - '\mspub.exe'
            - '\powerpnt.exe'
            - '\visio.exe'
            - '\winword.exe'
    condition: selection
falsepositives:
    - Legitimate usage of office automation via scripting
level: medium

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules-threat-hunting/windows/process_creation/proc_creation_win_office_svchost_parent.yml