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
Default Cobalt Strike Certificate
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Default Cobalt Strike Certificate
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: Default Cobalt Strike Certificate
id: 7100f7e3-92ce-4584-b7b7-01b40d3d4118
status: test
description: Detects the presence of default Cobalt Strike certificate in the HTTPS traffic
references:
- https://sergiusechel.medium.com/improving-the-network-based-detection-of-cobalt-strike-c2-servers-in-the-wild-while-reducing-the-6964205f6468
author: Bhabesh Raj
date: 2021-06-23
modified: 2022-10-09
tags:
- attack.command-and-control
- attack.s0154
logsource:
product: zeek
service: x509
detection:
selection:
certificate.serial: 8BB00EE
condition: 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/network/zeek/zeek_default_cobalt_strike_certificate.yml