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.

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Indexed Rules

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Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

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Active Rule

Lummac Stealer Activity - Execution Of More.com And Vbc.exe

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Lummac Stealer Activity - Execution Of More.com And Vbc.exe

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: Lummac Stealer Activity - Execution Of More.com And Vbc.exe
id: 19b3806e-46f2-4b4c-9337-e3d8653245ea
status: experimental
description: |
    Detects the execution of more.com and vbc.exe in the process tree.
    This behavior was observed by a set of samples related to Lummac Stealer.
    The Lummac payload is injected into the vbc.exe process.
references:
    - https://www.virustotal.com/gui/search/behaviour_processes%253A%2522C%253A%255C%255CWindows%255C%255CSysWOW64%255C%255Cmore.com%2522%2520behaviour_processes%253A%2522C%253A%255C%255CWindows%255C%255CMicrosoft.NET%255C%255CFramework%255C%255Cv4.0.30319%255C%255Cvbc.exe%2522/files
    - https://www.virustotal.com/gui/file/14d886517fff2cc8955844b252c985ab59f2f95b2849002778f03a8f07eb8aef
    - https://strontic.github.io/xcyclopedia/library/more.com-EDB3046610020EE614B5B81B0439895E.html
    - https://strontic.github.io/xcyclopedia/library/vbc.exe-A731372E6F6978CE25617AE01B143351.html
author: Joseliyo Sanchez, @Joseliyo_Jstnk
date: 2024-12-19
tags:
    - attack.privilege-escalation
    - attack.defense-evasion
    - attack.t1055
    - detection.emerging-threats
logsource:
    category: process_creation
    product: windows
detection:
    # VT Query: behaviour_processes:"C:\\Windows\\SysWOW64\\more.com" behaviour_processes:"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\vbc.exe"
    selection_parent:
        ParentImage|endswith: '\more.com'
    selection_child:
        - Image|endswith: '\vbc.exe'
        - OriginalFileName: 'vbc.exe'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2024/Malware/Lummac-Stealer/proc_creation_win_malware_lummac_more_vbc.yml