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
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Active Rule
HackTool - KrbRelayUp Execution
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
HackTool - KrbRelayUp Execution
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: HackTool - KrbRelayUp Execution
id: 12827a56-61a4-476a-a9cb-f3068f191073
status: test
description: Detects KrbRelayUp used to perform a universal no-fix local privilege escalation in Windows domain environments where LDAP signing is not enforced
references:
- https://github.com/Dec0ne/KrbRelayUp
author: Florian Roth (Nextron Systems)
date: 2022-04-26
modified: 2023-02-04
tags:
- attack.defense-evasion
- attack.credential-access
- attack.t1558.003
- attack.lateral-movement
- attack.t1550.003
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\KrbRelayUp.exe'
- OriginalFileName: 'KrbRelayUp.exe' # In case the file has been renamed after compilation
selection_cli_1:
CommandLine|contains|all:
- ' relay '
- ' -Domain '
- ' -ComputerName '
selection_cli_2:
CommandLine|contains|all:
- ' krbscm '
- ' -sc '
selection_cli_3:
CommandLine|contains|all:
- ' spawn '
- ' -d '
- ' -cn '
- ' -cp '
condition: 1 of selection_*
falsepositives:
- Unlikely
level: high
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_hktl_krbrelayup.yml