事实上dll注入很简单,无非就是调用virtualAllocEx,WriteProcessMemory,OpenProcess,CreateRemoteThread等API函数,因为我是学c#的,所以也想看一下c#这方面的文章,但在网上找了半天,没有找到一篇,也许是c#刚兴起的缘故,学c#的并不多,没办法,只好自己移植一下,因为凡是用到API函数,所有的编程的语言都是相同的,这就为我们的移植带来了方便,学c#的一般应该对API的调用概念很淡,因为c#通常不会去调用API函数,因为这些已经被封装了,在vb,vc++等语言中要结束一个进程,首先就必须要得到这个进程的句柄,然后才能进行相应的关闭进程等操作,得到句柄要用到OpenProcess API函数,结束进程要用到TerminateProcess API函数,但是在c#中你根本不需要知道这些API函数就能完成同样的功能,所以你要是想了解一下API的相关知识,学一点vb是一个很好的选择。好了!下面就开始我们的c# dll注入之旅吧!
首先需要加入以下API函数:
  [DllImport("kernel32.dll")]
          public static extern int VirtualAllocEx(IntPtr hwnd, int lpaddress, int size, int type, int tect);
          [DllImport("kernel32.dll")]
          public static extern int WriteProcessMemory(IntPtr hwnd, int baseaddress, string buffer, int nsize, int filewriten );
          [DllImport("kernel32.dll")]
          public static extern int GetProcAddress(int hwnd, string lpname);
          [DllImport("kernel32.dll")]
          public static extern int GetModuleHandleA(string name);
          [DllImport("kernel32.dll")]
          public static extern int CreateRemoteThread(IntPtr hwnd, int attrib, int size, int address, int par, int flags, int threadid);
   


C#声明API比较复杂,因为是调用非托管的dll,所以要用到DllImport来调用非托管的dll,他还有很多属性在这就不多说了,网上有很介绍,可以去查一下,不过c#调用自身的变得动态链接库是倒是很方便,直接加个引用就ok了,调用dll要用的一个引用:using System.Runtime.InteropServices;这个不要忘了加上,下面是编好的所有代码:
  using System;
  using System.Collections.Generic;
  using System.ComponentModel;
  using System.Data;
  using System.Drawing;
  using System.Text;
  using System.Windows.Forms;
  using System.Runtime.InteropServices;
  using System.Diagnostics;
  namespace dllinject
  {
      public partial class Form1 : Form
      {
          [DllImport("kernel32.dll")] //声明API函数
          public static extern int VirtualAllocEx(IntPtr hwnd, int lpaddress, int size, int type, int tect);
          [DllImport("kernel32.dll")]
          public static extern int WriteProcessMemory(IntPtr hwnd, int baseaddress, string buffer, int nsize, int filewriten );
          [DllImport("kernel32.dll")]
          public static extern int GetProcAddress(int hwnd, string lpname);
          [DllImport("kernel32.dll")]
          public static extern int GetModuleHandleA(string name);
          [DllImport("kernel32.dll")]
          public static extern int CreateRemoteThread(IntPtr hwnd, int attrib, int size, int address, int par, int flags, int threadid);
          public Form1()
          {
              InitializeComponent();
          }
   
          private void button1_Click(object sender, EventArgs e)
          {
              int ok1;
              //int ok2;
              //int hwnd;
              int baseaddress;
              int temp=0;
              int hack;
              int yan;
              string dllname;
              dllname = "c:\\dll.dll";
              int dlllength;
              dlllength = dllname.Length + 1;
              Process[] pname = Process.GetProcesses(); //取得所有进程
              foreach (Process name in pname) //遍历进程
           

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