逆向工程 - 解码 C# 二进制序列化数据 - 吾爱随笔录

我正在尝试解码似乎是简单的 C# 二进制序列化到磁盘的内容：

我无权访问生成此二进制 blob 的原始 DLL，因此除非我拥有所有 C# 结构的完整定义，否则我无法理解如何处理此文件。如果我可以访问原始 DLL，我可以对 C# 二进制文件进行逆向工程以找到结构，那么在这种情况下我应该怎么做？

using System;
using System.IO;
using System.Collections;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;

public class Dump
{
    [STAThread]
    static void Main() 
    {
        Deserialize();
    }

static void Deserialize() 
{
    // Declare the hashtable reference.
    Hashtable addresses  = null;

    // Open the file containing the data that you want to deserialize.
    FileStream fs = new FileStream("input.dat", FileMode.Open);
    try 
    {
        BinaryFormatter formatter = new BinaryFormatter();

        // Deserialize the hashtable from the file and 
        // assign the reference to the local variable.
        addresses = (Hashtable) formatter.Deserialize(fs);
    }
    catch (SerializationException e) 
    {
        Console.WriteLine("Failed to deserialize. Reason: " + e.Message);
        throw;
    }
    finally 
    {
        fs.Close();
    }

    // To prove that the table deserialized correctly, 
    // display the key/value pairs.
    foreach (DictionaryEntry de in addresses) 
    {
        Console.WriteLine("{0} lives at {1}.", de.Key, de.Value);
    }
}
}

造成：

$ mono ./Dump.exe
Failed to deserialize. Reason: Unable to find assembly 'ApplicationObjects, Version=1.0.4073.26998, Culture=neutral, PublicKeyToken=null'.

Unhandled Exception:
System.Runtime.Serialization.SerializationException: Unable to find assembly 'ApplicationObjects, Version=1.0.4073.26998, Culture=neutral, PublicKeyToken=null'.

参考：