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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.

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Backends

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CLI Versions

Newest: 2.0.2

Translation Workspace

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Active Rule

Potential CVE-2021-42278 Exploitation Attempt

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Potential CVE-2021-42278 Exploitation Attempt

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 CVE-2021-42278 Exploitation Attempt
id: 44bbff3e-4ca3-452d-a49a-6efa4cafa06f
related:
    - id: e80a0fee-1a62-4419-b31e-0d0db6e6013a
      type: similar
status: test
description: |
    The attacker creates a computer object using those permissions with a password known to her.
    After that she clears the attribute ServicePrincipalName on the computer object.
    Because she created the object (CREATOR OWNER), she gets granted additional permissions and can do many changes to the object.
references:
    - https://cloudbrothers.info/en/exploit-kerberos-samaccountname-spoofing/
author: frack113
date: 2021-12-15
modified: 2023-04-14
tags:
    - attack.credential-access
    - attack.t1558.003
    - cve.2021-42278
    - detection.emerging-threats
logsource:
    product: windows
    service: system
detection:
    selection:
        Provider_Name: 'Microsoft-Windows-Kerberos-Key-Distribution-Center'  # Active Directory
        EventID:
            - 35 # PAC without attributes
            - 36 # Ticket without a PAC
            - 37 # Ticket without Requestor
            - 38 # Requestor Mismatch
    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-emerging-threats/2021/Exploits/CVE-2021-42278/win_system_exploit_cve_2021_42278.yml