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 local pySigma backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,731
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Backends
17
Loaded from pysigma-node
pySigma Versions
10
Newest: 1.3.3
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
Indirect Command Execution via SFTP ProxyCommand
Target Profile
Splunk
Splunk through pysigma-backend-splunk.
Format Mode
Default
Default pySigma output mode for this backend.
Conversion Output
Indirect Command Execution via SFTP ProxyCommand
Using Splunk · Default · pySigma 1.3.3
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion1.3.3
title: Indirect Command Execution via SFTP ProxyCommand
id: 762bb580-79b4-40f4-8b9e-9349ce1710f4
status: experimental
description: |
Detects the use of SFTP.exe to execute commands indirectly via ProxyCommand parameter.
Threat actors were seen leveraging this legitimate Windows binary to bypass security controls and execute arbitrary commands while evading detection.
references:
- https://lolbas-project.github.io/lolbas/Binaries/Sftp/
- https://news.sophos.com/en-us/2025/05/09/lumma-stealer-coming-and-going/
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2026-04-27
tags:
- attack.defense-evasion
- attack.t1202
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\sftp.exe'
CommandLine|contains: 'ProxyCommand='
condition: selection
falsepositives:
- Legitimate use of SFTP with proxy commands for administration or networking tasks
level: medium
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_lolbin_sftp_indirect_cmd_execution/info.yml
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_sftp_proxy_command_execution.yml