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 Data Exfiltration Via Curl.EXE
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Data Exfiltration Via Curl.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: Potential Data Exfiltration Via Curl.EXE
id: 00bca14a-df4e-4649-9054-3f2aa676bc04
status: test
description: Detects the execution of the "curl" process with "upload" flags. Which might indicate potential data exfiltration
references:
- https://twitter.com/d1r4c/status/1279042657508081664
- https://medium.com/@petehouston/upload-files-with-curl-93064dcccc76
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1105/T1105.md#atomic-test-19---curl-upload-file
- https://curl.se/docs/manpage.html
author: Florian Roth (Nextron Systems), Cedric MAURUGEON (Update)
date: 2020-07-03
modified: 2023-05-02
tags:
- attack.exfiltration
- attack.command-and-control
- attack.t1567
- attack.t1105
- detection.threat-hunting
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\curl.exe'
- Product: 'The curl executable'
selection_cli:
- CommandLine|contains:
- ' --form' # Also covers the "--form-string"
- ' --upload-file '
- ' --data '
- ' --data-' # For flags like: "--data-ascii", "--data-binary", "--data-raw", "--data-urlencode"
- CommandLine|re: '\s-[FTd]\s' # We use regex to ensure a case sensitive argument detection
filter_optional_localhost:
CommandLine|contains:
- '://localhost'
- '://127.0.0.1'
condition: all of selection_* and not 1 of filter_optional_*
falsepositives:
- Scripts created by developers and admins
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_curl_fileupload.yml