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
CVE-2021-33766 Exchange ProxyToken Exploitation
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
CVE-2021-33766 Exchange ProxyToken Exploitation
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: CVE-2021-33766 Exchange ProxyToken Exploitation
id: 56973b50-3382-4b56-bdf5-f51a3183797a
status: test
description: Detects the exploitation of Microsoft Exchange ProxyToken vulnerability as described in CVE-2021-33766
references:
- https://www.zerodayinitiative.com/blog/2021/8/30/proxytoken-an-authentication-bypass-in-microsoft-exchange-server
author: Florian Roth (Nextron Systems), Max Altgelt (Nextron Systems), Christian Burkard (Nextron Systems)
date: 2021-08-30
modified: 2023-01-02
tags:
- attack.initial-access
- attack.t1190
- cve.2021-33766
- detection.emerging-threats
logsource:
category: webserver
detection:
selection_1:
cs-method: 'POST'
cs-uri-query|contains|all:
- '/ecp/'
- '/RulesEditor/InboxRules.svc/NewObject'
sc-status: 500
selection_2:
cs-uri-query|contains|all:
- 'SecurityToken='
- '/ecp/'
sc-status: 500
condition: 1 of selection_*
falsepositives:
- Unknown
level: critical
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2021/Exploits/CVE-2021-33766/web_cve_2021_33766_msexchange_proxytoken.yml