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Query Registry

Description from ATT&CK

Adversaries may interact with the Windows Registry to gather information about the system, configuration, and installed software.

The Registry contains a significant amount of information about the operating system, configuration, software, and security.(Citation: Wikipedia Windows Registry) Information can easily be queried using the Reg utility, though other means to access the Registry exist. Some of the information may help adversaries to further their operation within a network. Adversaries may use the information from Query Registry during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.

Atomic Tests

Atomic Test #1 - Query Registry

Query Windows Registry. Upon successful execution, cmd.exe will perform multiple reg queries. Some will succeed and others will fail (dependent upon OS). References: https://blog.cylance.com/windows-registry-persistence-part-2-the-run-keys-and-search-order https://blog.cylance.com/windows-registry-persistence-part-1-introduction-attack-phases-and-windows-services http://www.handgrep.se/repository/cheatsheets/postexploitation/WindowsPost-Exploitation.pdf https://www.offensive-security.com/wp-content/uploads/2015/04/wp.Registry_Quick_Find_Chart.en_us.pdf

Supported Platforms: windows

auto_generated_guid: 8f7578c4-9863-4d83-875c-a565573bbdf0

Inputs:

None

Attack Commands: Run with command_prompt! Elevation Required (e.g. root or admin)

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reg query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows"
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
reg query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify"
reg query "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit"
reg query "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\\Shell"
reg query "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\\Shell"
reg query HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnceEx
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Run
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\Run
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run
reg query HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run
reg query HKLM\system\currentcontrolset\services /s | findstr ImagePath 2>nul | findstr /Ri ".*\.sys$"
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Run
reg query HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot
reg query "HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components"
reg query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Startup"

Atomic Test #2 - Query Registry with Powershell cmdlets

Query Windows Registry with Powershell cmdlets, i.e., Get-Item and Get-ChildItem. The results from above can also be achieved with Get-Item and Get-ChildItem. Unlike using "reg query" which then executes reg.exe, using cmdlets won't generate new processes, which may evade detection systems monitoring process generation.

Supported Platforms: windows

auto_generated_guid: 0434d081-bb32-42ce-bcbb-3548e4f2628f

Inputs:

None

Attack Commands: Run with powershell! Elevation Required (e.g. root or admin)

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Get-Item -Path "HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows"
Get-ChildItem -Path "HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\" | findstr Windows
Get-Item -Path "HKLM:Software\Microsoft\Windows\CurrentVersion\RunServicesOnce"
Get-Item -Path "HKCU:Software\Microsoft\Windows\CurrentVersion\RunServicesOnce"
Get-Item -Path "HKLM:Software\Microsoft\Windows\CurrentVersion\RunServices"
Get-Item -Path "HKCU:Software\Microsoft\Windows\CurrentVersion\RunServices"
Get-Item -Path "HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify"
Get-Item -Path "HKLM:Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit"
Get-Item -Path "HKCU:Software\Microsoft\Windows NT\CurrentVersion\Winlogon\\Shell"
Get-Item -Path "HKLM:Software\Microsoft\Windows NT\CurrentVersion\Winlogon\\Shell"
Get-Item -Path "HKLM:SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad"
Get-Item -Path "HKLM:Software\Microsoft\Windows\CurrentVersion\RunOnce"
Get-Item -Path "HKLM:Software\Microsoft\Windows\CurrentVersion\RunOnceEx"
Get-Item -Path "HKLM:Software\Microsoft\Windows\CurrentVersion\Run"
Get-Item -Path "HKCU:Software\Microsoft\Windows\CurrentVersion\Run"
Get-Item -Path "HKCU:Software\Microsoft\Windows\CurrentVersion\RunOnce"
Get-Item -Path "HKLM:Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run"
Get-Item -Path "HKCU:Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run"
Get-ChildItem -Path "HKLM:system\currentcontrolset\services" 
Get-Item -Path "HKLM:Software\Microsoft\Windows\CurrentVersion\Run"
Get-Item -Path "HKLM:SYSTEM\CurrentControlSet\Control\SafeBoot"
Get-ChildItem -Path "HKLM:SOFTWARE\Microsoft\Active Setup\Installed Components"
Get-ChildItem -Path "HKLM:SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Startup"

Atomic Test #3 - Enumerate COM Objects in Registry with Powershell

This test is designed to enumerate the COM objects listed in HKCR, then output their methods and CLSIDs to a text file. An adversary could then use this information to identify COM objects that might be vulnerable to abuse, such as using them to spawn arbitrary processes. See: https://www.mandiant.com/resources/hunting-com-objects

Supported Platforms: windows

auto_generated_guid: 0d80d088-a84c-4353-af1a-fc8b439f1564

Inputs:

Name Description Type Default Value
output_file File to output list of COM objects to string $env:temp\T1592.002Test1.txt

Attack Commands: Run with powershell!

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New-PSDrive -PSProvider registry -Root HKEY_CLASSES_ROOT -Name HKCR
Get-ChildItem -Path HKCR:\CLSID -Name | Select -Skip 1 > $env:temp\clsids.txt
ForEach($CLSID in Get-Content "$env:temp\clsids.txt")
{try{write-output "$($Position)-$($CLSID)"
write-output "------------"| out-file #{output_file} -append
write-output $($CLSID)| out-file #{output_file} -append
$handle=[activator]::CreateInstance([type]::GetTypeFromCLSID($CLSID))
$handle | get-member -erroraction silentlycontinue | out-file #{output_file} -append
$position += 1} catch{}}

Cleanup Commands:

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remove-item #{output_file} -force -erroraction silentlycontinue
remove-item $env:temp\clsids.txt -force -erroraction silentlycontinue

source