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 Dosfuscation Activity
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Dosfuscation Activity
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 Dosfuscation Activity
id: a77c1610-fc73-4019-8e29-0f51efc04a51
status: test
description: Detects possible payload obfuscation via the commandline
references:
- https://www.fireeye.com/content/dam/fireeye-www/blog/pdfs/dosfuscation-report.pdf
- https://github.com/danielbohannon/Invoke-DOSfuscation
author: frack113, Nasreddine Bencherchali (Nextron Systems)
date: 2022-02-15
modified: 2023-03-06
tags:
- attack.execution
- attack.t1059
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains:
- '^^'
- '^|^'
- ',;,'
- ';;;;'
- ';; ;;'
- '(,(,'
- '%COMSPEC:~'
- ' c^m^d'
- '^c^m^d'
- ' c^md'
- ' cm^d'
- '^cm^d'
- ' s^et '
- ' s^e^t '
- ' se^t '
# - '%%'
# - '&&'
# - '""'
condition: selection
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_cmd_dosfuscation.yml