# Query the Registry for Winlogon Helper Dll's

```
#####aid_begin
#description: fetch the information on winlogon helper dll from winlogon
#id: aid2112302152
#processtype: query
#category: registry
#sourcelink: <na>
#tacticidlist: <na>
#techniqueidlist: <na>
#compatibleos: |-
#  windows 7
#  windows 8.*
#  windows 10
#  windows 11
#  windows server 2008 r2
#  windows server 2012
#  windows server 2012 r2
#  windows server 2016
#  windows server 2019
#compatibleengine: |-
#  powershell 2
#  powershell 3
#  powershell 4
#  powershell 5.*
#  powershell 7.*
#bgcommandlist: |-
#  get-bgregistry
#notes: |-
#  adversaries may abuse features of winlogon to execute dlls and/or executables when a user logs in. winlogon.exe is a windows component responsible for actions at logon/logoff as well as the secure attention sequence (sas) triggered by ctrl-alt-delete. malicious modifications to these registry keys may cause winlogon to load and execute malicious dlls and/or executables. specifically, 
#     o  winlogon\notify - points to notification package dlls that handle winlogon events
#     o  winlogon\userinit - points to userinit.exe, the user initialization program executed when a user logs on
#     o  winlogon\shell - points to explorer.exe, the system shell executed when a user logs on
#  adversaries may take advantage of these features to repeatedly execute malicious code and establish persistence.
#####aid_end
commands:
- Get-BGRegistry -StartKey "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Shell'
- Get-BGRegistry -StartKey "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Userinit'
- Get-BGRegistry -StartKey "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'AppSetup'
- Get-BGRegistry -StartKey "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Taskman'
- Get-BGRegistry -StartKey "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'VmApplet'
- Get-BGRegistry -StartKey "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Notify'
- Get-BGRegistry -StartKey "HKLM\Software\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Shell'
- Get-BGRegistry -StartKey "HKLM\Software\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Userinit'
- Get-BGRegistry -StartKey "HKLM\Software\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'AppSetup'
- Get-BGRegistry -StartKey "HKLM\Software\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Taskman'
- Get-BGRegistry -StartKey "HKLM\Software\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'VmApplet'
- Get-BGRegistry -StartKey "HKLM\Software\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Notify'
- Get-BGRegistry -StartKey "HKU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Shell'
- Get-BGRegistry -StartKey "HKU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Userinit'
- Get-BGRegistry -StartKey "HKU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -MatchValue -MatchData -Pattern 'Notify'
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://manuals.blusapphire.io/blugenie/artifacts/tactical-artifacts-by-category/registry-query/query-the-registry-for-winlogon-helper-dlls.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.