static void Main(string[] args)
{
byte[] shell_code = { 0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x48, 0xC7, 0x45, 0xFC, 0x64, 0x00, 0x00, 0x00, 0x66, 0x8B, 0x45, 0xFC, 0x66, 0x83, 0xC0, 0x01, 0x66, 0x89, 0x45, 0xFC, 0x8B, 0x55, 0x08, 0x8D, 0x45, 0xEC, 0x50, 0xC7, 0x45, 0xEC, 0x4C, 0x6F, 0x61, 0x64, 0xC7, 0x45, 0xF0, 0x4C, 0x69, 0x62, 0x72, 0xC7, 0x45, 0xF4, 0x61, 0x72, 0x79, 0x41, 0xC6, 0x45, 0xF8, 0x00, 0xE8, 0x8E, 0x00, 0x00, 0x00, 0x8D, 0x4D, 0xE0, 0x51, 0xC7, 0x45, 0xE0, 0x63, 0x72, 0x74, 0x64, 0xC7, 0x45, 0xE4, 0x6C, 0x6C, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xE8, 0x6C, 0x6C, 0xC6, 0x45, 0xEA, 0x00, 0xC7, 0x45, 0xF0, 0x73, 0x79, 0x73, 0x74, 0x66, 0xC7, 0x45, 0xF4, 0x65, 0x6D, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xB8, 0x63, 0x6D, 0x64, 0x2E, 0xC7, 0x45, 0xBC, 0x65, 0x78, 0x65, 0x20, 0xC7, 0x45, 0xC0, 0x2F, 0x43, 0x20, 0x77, 0xC7, 0x45, 0xC4, 0x68, 0x6F, 0x61, 0x6D, 0xC7, 0x45, 0xC8, 0x69, 0x20, 0x3E, 0x20, 0xC7, 0x45, 0xCC, 0x43, 0x3A, 0x5C, 0x54, 0xC7, 0x45, 0xD0, 0x65, 0x6D, 0x70, 0x5C, 0xC7, 0x45, 0xD4, 0x5C, 0x74, 0x65, 0x73, 0xC7, 0x45, 0xD8, 0x74, 0x2E, 0x74, 0x78, 0x66, 0xC7, 0x45, 0xDC, 0x74, 0x00, 0xFF, 0xD0, 0x8D, 0x4D, 0xB8, 0x51, 0x8D, 0x4D, 0xF0, 0x51, 0x8B, 0xD0, 0xE8, 0x0B, 0x00, 0x00, 0x00, 0xFF, 0xD0, 0x0F, 0xBF, 0x45, 0xFC, 0x59, 0xC9, 0xC2, 0x0C, 0x00, 0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x1C, 0x8B, 0x42, 0x3C, 0x8B, 0x4C, 0x10, 0x78, 0x83, 0x65, 0xE4, 0x00, 0x83, 0x65, 0xFC, 0x00, 0x53, 0x03, 0xCA, 0x8B, 0x59, 0x1C, 0x8B, 0x41, 0x18, 0x56, 0x8B, 0x71, 0x20, 0x57, 0x8B, 0x79, 0x24, 0x8B, 0x49, 0x14, 0x03, 0xDA, 0x03, 0xFA, 0x03, 0xF2, 0x89, 0x45, 0xF0, 0x89, 0x4D, 0xE8, 0x85, 0xC0, 0x74, 0x4D, 0x8B, 0x45, 0xFC, 0x0F, 0xBF, 0x0C, 0x47, 0x89, 0x4D, 0xEC, 0x3B, 0x45, 0xF0, 0x73, 0x52, 0x8B, 0x45, 0xE8, 0x3B, 0xC8, 0x73, 0x4B, 0x8B, 0x45, 0xFC, 0x8B, 0x04, 0x86, 0x8B, 0x4D, 0x08, 0x03, 0xC2, 0x89, 0x45, 0xF8, 0x8A, 0x00, 0x3A, 0x01, 0x75, 0x0D, 0x84, 0xC0, 0x74, 0x29, 0xFF, 0x45, 0xF8, 0x8B, 0x45, 0xF8, 0x41, 0xEB, 0xED, 0x3B, 0x4D, 0xF8, 0x1B, 0xC0, 0x83, 0xE0, 0x02, 0x48, 0x74, 0x15, 0xFF, 0x45, 0xFC, 0x8B, 0x45, 0xFC, 0x3B, 0x45, 0xF0, 0x72, 0xB3, 0x8B, 0x45, 0xE4, 0x5F, 0x5E, 0x5B, 0xC9, 0xC2, 0x04, 0x00, 0x8B, 0x45, 0xEC, 0x8B, 0x04, 0x83, 0x03, 0xC2, 0xEB, 0xEF, 0x33, 0xC0, 0xEB, 0xEB, 0x00 };
IntPtr handle = VirtualAlloc(IntPtr.Zero, shell_code.Length, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
try
{
int value = LoadLibraryA("kernel32.dll".ToCharArray());
Console.WriteLine(value);
Marshal.Copy(shell_code, 0, handle, shell_code.Length);
ShellCodeFunc shell_code_func = Marshal.GetDelegateForFunctionPointer(handle, typeof(ShellCodeFunc)) as ShellCodeFunc;
int result = shell_code_func(value, "Hello world !".ToCharArray(), "test string".ToCharArray());
Console.WriteLine("Result:{0}", result);
} // end try
catch (Exception ex)
{
Console.WriteLine(ex.Message);
} // end catch
finally
{
VirtualFree(handle, 0, MEM_RELEASE);
} // end finally
Console.ReadLine();
}
private void button1_Click(object sender, EventArgs e)
{
byte[] shell_code = { 0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x3C, 0x53, 0x56, 0xC7, 0x45, 0xFC, 0x64, 0x00, 0x00, 0x00, 0x66, 0x8B, 0x45, 0xFC, 0x66, 0x83, 0xC0, 0x01, 0x66, 0x89, 0x45, 0xFC, 0x8B, 0x55, 0x08, 0x8D, 0x45, 0xC4, 0x33, 0xDB, 0x50, 0xC7, 0x45, 0xC4, 0x4C, 0x6F, 0x61, 0x64, 0xC7, 0x45, 0xC8, 0x4C, 0x69, 0x62, 0x72, 0xC7, 0x45, 0xCC, 0x61, 0x72, 0x79, 0x41, 0x88, 0x5D, 0xD0, 0xE8, 0xBB, 0x00, 0x00, 0x00, 0x8B, 0xF0, 0x8D, 0x45, 0xE0, 0x50, 0xC7, 0x45, 0xE0, 0x75, 0x73, 0x65, 0x72, 0xC7, 0x45, 0xE4, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xE8, 0x6C, 0x6C, 0x88, 0x5D, 0xEA, 0xC7, 0x45, 0xC4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xC8, 0x61, 0x67, 0x65, 0x42, 0xC7, 0x45, 0xCC, 0x6F, 0x78, 0x41, 0x00, 0xFF, 0xD6, 0x53, 0xFF, 0x75, 0x10, 0x8D, 0x4D, 0xC4, 0xFF, 0x75, 0x0C, 0x8B, 0xD0, 0x53, 0x51, 0xE8, 0x74, 0x00, 0x00, 0x00, 0xFF, 0xD0, 0x8D, 0x45, 0xD4, 0x50, 0xC7, 0x45, 0xD4, 0x73, 0x68, 0x65, 0x6C, 0xC7, 0x45, 0xD8, 0x6C, 0x33, 0x32, 0x2E, 0xC7, 0x45, 0xDC, 0x64, 0x6C, 0x6C, 0x00, 0xC7, 0x45, 0xC4, 0x53, 0x68, 0x65, 0x6C, 0xC7, 0x45, 0xC8, 0x6C, 0x45, 0x78, 0x65, 0xC7, 0x45, 0xCC, 0x63, 0x75, 0x74, 0x65, 0x66, 0xC7, 0x45, 0xD0, 0x41, 0x00, 0xC7, 0x45, 0xF4, 0x6F, 0x70, 0x65, 0x6E, 0x88, 0x5D, 0xF8, 0xC7, 0x45, 0xEC, 0x63, 0x6D, 0x64, 0x2E, 0xC7, 0x45, 0xF0, 0x65, 0x78, 0x65, 0x00, 0xFF, 0xD6, 0x6A, 0x05, 0x53, 0x53, 0x8D, 0x4D, 0xEC, 0x51, 0x8D, 0x4D, 0xF4, 0x51, 0x53, 0x8D, 0x4D, 0xC4, 0x51, 0x8B, 0xD0, 0xE8, 0x0C, 0x00, 0x00, 0x00, 0xFF, 0xD0, 0x0F, 0xBF, 0x45, 0xFC, 0x5E, 0x5B, 0xC9, 0xC2, 0x0C, 0x00, 0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x1C, 0x8B, 0x42, 0x3C, 0x8B, 0x4C, 0x10, 0x78, 0x83, 0x65, 0xE4, 0x00, 0x83, 0x65, 0xFC, 0x00, 0x53, 0x03, 0xCA, 0x8B, 0x59, 0x1C, 0x8B, 0x41, 0x18, 0x56, 0x8B, 0x71, 0x20, 0x57, 0x8B, 0x79, 0x24, 0x8B, 0x49, 0x14, 0x03, 0xDA, 0x03, 0xFA, 0x03, 0xF2, 0x89, 0x45, 0xF0, 0x89, 0x4D, 0xE8, 0x85, 0xC0, 0x74, 0x4D, 0x8B, 0x45, 0xFC, 0x0F, 0xBF, 0x0C, 0x47, 0x89, 0x4D, 0xEC, 0x3B, 0x45, 0xF0, 0x73, 0x52, 0x8B, 0x45, 0xE8, 0x3B, 0xC8, 0x73, 0x4B, 0x8B, 0x45, 0xFC, 0x8B, 0x04, 0x86, 0x8B, 0x4D, 0x08, 0x03, 0xC2, 0x89, 0x45, 0xF8, 0x8A, 0x00, 0x3A, 0x01, 0x75, 0x0D, 0x84, 0xC0, 0x74, 0x29, 0xFF, 0x45, 0xF8, 0x8B, 0x45, 0xF8, 0x41, 0xEB, 0xED, 0x3B, 0x4D, 0xF8, 0x1B, 0xC0, 0x83, 0xE0, 0x02, 0x48, 0x74, 0x15, 0xFF, 0x45, 0xFC, 0x8B, 0x45, 0xFC, 0x3B, 0x45, 0xF0, 0x72, 0xB3, 0x8B, 0x45, 0xE4, 0x5F, 0x5E, 0x5B, 0xC9, 0xC2, 0x04, 0x00, 0x8B, 0x45, 0xEC, 0x8B, 0x04, 0x83, 0x03, 0xC2, 0xEB, 0xEF, 0x33, 0xC0, 0xEB, 0xEB, 0x00 };
IntPtr handle = VirtualAlloc(IntPtr.Zero, shell_code.Length, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
try
{
int value = LoadLibraryA("kernel32.dll".ToCharArray());
Marshal.Copy(shell_code, 0, handle, shell_code.Length);
ShellCodeFunc shell_code_func = Marshal.GetDelegateForFunctionPointer(handle, typeof(ShellCodeFunc)) as ShellCodeFunc;
int result = shell_code_func(value, "Hello world !".ToCharArray(), "test string".ToCharArray());
lbl_Return.Text = result.ToString();
} // end try
catch (Exception ex)
{
lbl_Return.Text = ex.Message;
} // end catch
finally
{
VirtualFree(handle, 0, MEM_RELEASE);
} // end finally
}
