原文出处:https://www.cnblogs.com/lonelyxmas/p/5088028.html
直接上代码:(亲测可用)
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Diagnostics;
namespace WindowsFormsApplication1
{
publicpartialclass Form1 : Form
{
public Form1()
{
InitializeComponent();
}
[DllImport("kernel32.dll")] //声明API函数
publicstaticexternint VirtualAllocEx(IntPtr hwnd, int lpaddress, int size, int type, int tect);
[DllImport("kernel32.dll")]
publicstaticexternint WriteProcessMemory(IntPtr hwnd, int baseaddress, string buffer, int nsize, int filewriten);
[DllImport("kernel32.dll")]
publicstaticexternint GetProcAddress(int hwnd, string lpname);
[DllImport("kernel32.dll")]
publicstaticexternint GetModuleHandleA(string name);
[DllImport("kernel32.dll")]
publicstaticexternint CreateRemoteThread(IntPtr hwnd, int attrib, int size, int address, int par, int flags, int threadid);
privatevoid 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
{
//MessageBox.Show(name.ProcessName.ToLower());
if (name.ProcessName.ToLower().IndexOf("notepad") !=-1) //所示记事本,那么下面开始注入
{
baseaddress = VirtualAllocEx(name.Handle, 0, dlllength, 4096, 4); //申请内存空间
if (baseaddress ==0) //返回0则操作失败,下面都是
{
MessageBox.Show("申请内存空间失败!!");
Application.Exit();
}
ok1 = WriteProcessMemory(name.Handle, baseaddress, dllname, dlllength, temp); //写内存
if (ok1 ==0)
{
MessageBox.Show("写内存失败!!");
Application.Exit();
}
hack = GetProcAddress(GetModuleHandleA("Kernel32"), "LoadLibraryA"); //取得loadlibarary在kernek32.dll地址
if (hack ==0)
{
MessageBox.Show("无法取得函数的入口点!!");
Application.Exit();
}
yan = CreateRemoteThread(name.Handle, 0, 0, hack, baseaddress, 0, temp); //创建远程线程。
if (yan ==0)
{
MessageBox.Show("创建远程线程失败!!");
Application.Exit();
}
else
{
MessageBox.Show("已成功注入dll!!");
}
}
}
}
}
}