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Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
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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 Persistence Via Logon Scripts - Registry
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Potential Persistence Via Logon Scripts - Registry
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 Persistence Via Logon Scripts - Registry
id: 9ace0707-b560-49b8-b6ca-5148b42f39fb
status: test
description: Detects creation of "UserInitMprLogonScript" registry value which can be used as a persistence method by malicious actors
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1037.001/T1037.001.md
author: Tom Ueltschi (@c_APT_ure)
date: 2019-01-12
modified: 2025-10-26
tags:
- attack.privilege-escalation
- attack.t1037.001
- attack.persistence
- attack.lateral-movement
logsource:
category: registry_set
product: windows
detection:
selection:
TargetObject|contains: 'UserInitMprLogonScript'
condition: selection
falsepositives:
- Investigate the contents of the "UserInitMprLogonScript" value to determine of the added script is legitimate
level: medium
regression_tests_path: regression_data/rules/windows/registry/registry_set/registry_set_persistence_logon_scripts_userinitmprlogonscript/info.yml
simulation:
- type: atomic-red-team
name: Logon Scripts
technique: T1037.001
atomic_guid: d6042746-07d4-4c92-9ad8-e644c114a231
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/registry/registry_set/registry_set_persistence_logon_scripts_userinitmprlogonscript.yml