【注册机制作】 某二手车发票管理系统
本帖最后由 云在天 于 2019-6-7 13:10 编辑前言：最近一直忙着弄MacOS上的一些东西，没怎么写Win程序，这次就先写一篇注册机的制作，Net程序，如果不加强壳，混淆，做一个注册机很容易，复制粘贴到IDE就搞定。
软件去看我原创区的帖子
【0x1】查壳
这种不知道什么壳，De4又支持的就直接放到De4里脱一脱，是骡子是马拉出来溜达溜达。
PS:其实这个不脱也是可以看到的。
【0x2】反编译
De4搞完后，直接拖进Dnspy里
结构很清楚，不过这个作者一会中文拼音，一会英文的，不纠结吗{:301_1002:}
我们先从类名入手，找有关注册【register/zhuce】的字段，如果这里能找到就恭喜你了，如果找不到就用搜索搜关键字吧。还好还好，找到了。看一下代码，找到关键部分，这里不截图了，直接放代码
1.注册窗体的加载
private void Register_Load(object sender, EventArgs e)
{
CUntily cuntily = new CUntily();
string[] departmentAndYXQ = cuntily.GetDepartmentAndYXQ();
if (cuntily.IsCorrentSearial())//这里判断是不是已经注册，如果注册就显示下面的已授权，如果没有就显示默认文本
{
this.RegisterInformation.Text = "本产品已授权给" + departmentAndYXQ + "，授权截止日期为" + departmentAndYXQ;
}
ToolTip toolTip = new ToolTip();
toolTip.SetToolTip(this.ck_IDCard, "若没有购买此功能，请不要勾选。");
}
2.点击注册按钮时的动作
private void OK_Click(object sender, EventArgs e)
{
string text = this.DepartName.Text.Trim();//企业名称
string text2 = this.XQDate.Text;//授权时间
string text3 = this.ck_IDCard.Checked ? "是" : "否";//身份证检测
DateTime dateTime;//系统时间
if (text == "")
{
MessageBox.Show("单位名称不能为空！");
}
//判断输入是否正确，检查了很多，这里省略，直接看检验注册码的过程
else
{
CUntily cuntily = new CUntily();//新建了一个类
if (cuntily.MakeSearial(new string[]
{
text,
text2,
text3
}) == this.ZhuCeMa.Text)//通过MakeSearial与输入的注册码对比，一致就注册成功，不一致失败。
{
this.IsCorrect = true;
MessageBox.Show("注册成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
base.Close();
}
else
{
this.IsCorrect = false;
MessageBox.Show("注册失败！\n\n1、请检查单位名称、授权截止日期、注册码是否正确；\n2、输入法改成半角，再重新输入。", "提示", MessageBoxButtons.OK, MessageBoxIcon.Hand);
}
}
}
通过上面的分析，我们知道获取正确注册码的关键是在MakeSearial这个函数里面，那我们就跳到这里分析注册码构成。PS:Serial才对，作者可能多打了一个a。
3.MakeSearial代码
public string MakeSearial(string[] deanddate)
{
string text;
if (deanddate == "是")//这里是选择身份证那个选择框的值
{
text = deanddate + deanddate + "&8$dZ|3%G#@";
}
else
{
text = deanddate + deanddate + "Ze34@!-+d93";
}
text = this.GetMd5(text);//获取输入内容的MD5
string text2 = text.Substring(0, 5);
string text3 = text.Substring(5, 5);
string text4 = text.Substring(10, 5);
string text5 = text.Substring(15, 5);
string text6 = text.Substring(20, 5);
//上面就是一次取5个字符，取5次。
return string.Concat(new string[]
{
text2,
"-",
text3,
"-",
text4,
"-",
text5,
"-",
text6
});//通过-连接，然后返回
}
4.编写注册机
通过上面的分析，就是获取输入的内容然后构造一个String然后MD5,然后在取文本，组合成注册码
只要把上面的代码都复制到IDE里面，在画几个控件就完成了
附上我写的代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void InitializeComponent()
{
this.label5 = new System.Windows.Forms.Label();
this.OK = new System.Windows.Forms.Button();
this.ZhuCeMa = new System.Windows.Forms.TextBox();
this.label4 = new System.Windows.Forms.Label();
this.linkLabel1 = new System.Windows.Forms.LinkLabel();
this.label3 = new System.Windows.Forms.Label();
this.DepartName = new System.Windows.Forms.TextBox();
this.label6 = new System.Windows.Forms.Label();
this.richTextBox1 = new System.Windows.Forms.RichTextBox();
this.XQDate = new System.Windows.Forms.TextBox();
this.ck_IDCard = new System.Windows.Forms.CheckBox();
this.label7 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// label5
//
this.label5.AutoSize = true;
this.label5.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.label5.ForeColor = System.Drawing.Color.Black;
this.label5.Location = new System.Drawing.Point(3, 276);
this.label5.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(357, 75);
this.label5.TabIndex = 25;
this.label5.Text = " 注册机制作: 云在天(Harry)吾爱破解论坛\n\r\n\r 邮箱：harry@521harry.site\r\n\n\r 微博：";
//
// OK
//
this.OK.Location = new System.Drawing.Point(242, 231);
this.OK.Margin = new System.Windows.Forms.Padding(4);
this.OK.Name = "OK";
this.OK.Size = new System.Drawing.Size(100, 29);
this.OK.TabIndex = 22;
this.OK.Text = "生成注册码";
this.OK.UseVisualStyleBackColor = true;
this.OK.Click += new System.EventHandler(this.OK_Click);
//
// ZhuCeMa
//
this.ZhuCeMa.Location = new System.Drawing.Point(206, 193);
this.ZhuCeMa.Margin = new System.Windows.Forms.Padding(4);
this.ZhuCeMa.Name = "ZhuCeMa";
this.ZhuCeMa.Size = new System.Drawing.Size(301, 25);
this.ZhuCeMa.TabIndex = 3;
//
// label4
//
this.label4.AutoSize = true;
this.label4.ForeColor = System.Drawing.Color.Black;
this.label4.Location = new System.Drawing.Point(98, 198);
this.label4.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(97, 15);
this.label4.TabIndex = 20;
this.label4.Text = "产品注册码：";
//
// linkLabel1
//
this.linkLabel1.AutoSize = true;
this.linkLabel1.Location = new System.Drawing.Point(59, 335);
this.linkLabel1.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0);
this.linkLabel1.Name = "linkLabel1";
this.linkLabel1.Size = new System.Drawing.Size(223, 15);
this.linkLabel1.TabIndex = 28;
this.linkLabel1.TabStop = true;
this.linkLabel1.Text = "https://weibo.com/279977366";
this.linkLabel1.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.linkLabel1_LinkClicked);
//
// label3
//
this.label3.AutoSize = true;
this.label3.ForeColor = System.Drawing.Color.Black;
this.label3.Location = new System.Drawing.Point(114, 108);
this.label3.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(82, 15);
this.label3.TabIndex = 30;
this.label3.Text = "单位名称：";
//
// DepartName
//
this.DepartName.Location = new System.Drawing.Point(206, 103);
this.DepartName.Margin = new System.Windows.Forms.Padding(4);
this.DepartName.Name = "DepartName";
this.DepartName.Size = new System.Drawing.Size(301, 25);
this.DepartName.TabIndex = 1;
//
// label6
//
this.label6.AutoSize = true;
this.label6.ForeColor = System.Drawing.Color.Black;
this.label6.Location = new System.Drawing.Point(82, 138);
this.label6.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0);
this.label6.Name = "label6";
this.label6.Size = new System.Drawing.Size(112, 15);
this.label6.TabIndex = 32;
this.label6.Text = "授权截止日期：";
//
// richTextBox1
//
this.richTextBox1.BackColor = System.Drawing.SystemColors.Control;
this.richTextBox1.BorderStyle = System.Windows.Forms.BorderStyle.None;
this.richTextBox1.Enabled = false;
this.richTextBox1.ForeColor = System.Drawing.Color.Red;
this.richTextBox1.Location = new System.Drawing.Point(6, 5);
this.richTextBox1.Margin = new System.Windows.Forms.Padding(4);
this.richTextBox1.Name = "richTextBox1";
this.richTextBox1.ReadOnly = true;
this.richTextBox1.ScrollBars = System.Windows.Forms.RichTextBoxScrollBars.None;
this.richTextBox1.Size = new System.Drawing.Size(589, 90);
this.richTextBox1.TabIndex = 36;
this.richTextBox1.Text = "Crack By 云在天 (Harry) www.52Pojie.cn \n此补丁仅限用于学习和研究目的,不得将上述内容用于商业或者非法用途，否则，一切后果请用户自" +
"负。\n您必须在下载后的24小时之内，从您的电脑中彻底删除上述内容。\n\n如果您喜欢该程序，请支持正版软件，购买注册，得到更好的正版服务。\n\n如有侵权请联系harr" +
"y@521harry.site。";
//
// XQDate
//
this.XQDate.Location = new System.Drawing.Point(206, 133);
this.XQDate.Margin = new System.Windows.Forms.Padding(4);
this.XQDate.Name = "XQDate";
this.XQDate.Size = new System.Drawing.Size(301, 25);
this.XQDate.TabIndex = 2;
//
// ck_IDCard
//
this.ck_IDCard.AutoSize = true;
this.ck_IDCard.Location = new System.Drawing.Point(206, 166);
this.ck_IDCard.Margin = new System.Windows.Forms.Padding(4);
this.ck_IDCard.Name = "ck_IDCard";
this.ck_IDCard.Size = new System.Drawing.Size(119, 19);
this.ck_IDCard.TabIndex = 4;
this.ck_IDCard.Text = "身份证阅读器";
this.ck_IDCard.UseVisualStyleBackColor = true;
//
// label7
//
this.label7.AutoSize = true;
this.label7.ForeColor = System.Drawing.Color.Black;
this.label7.Location = new System.Drawing.Point(114, 167);
this.label7.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0);
this.label7.Name = "label7";
this.label7.Size = new System.Drawing.Size(82, 15);
this.label7.TabIndex = 39;
this.label7.Text = "附加功能：";
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 15F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(592, 372);
this.Controls.Add(this.label7);
this.Controls.Add(this.ck_IDCard);
this.Controls.Add(this.XQDate);
this.Controls.Add(this.richTextBox1);
this.Controls.Add(this.label6);
this.Controls.Add(this.DepartName);
this.Controls.Add(this.label3);
this.Controls.Add(this.linkLabel1);
this.Controls.Add(this.label5);
this.Controls.Add(this.OK);
this.Controls.Add(this.ZhuCeMa);
this.Controls.Add(this.label4);
this.ForeColor = System.Drawing.SystemColors.ControlText;
this.Margin = new System.Windows.Forms.Padding(4);
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "二手车注册机";
this.Load += new System.EventHandler(this.Form1_Load_1);
this.ResumeLayout(false);
this.PerformLayout();
}
// Token: 0x04000352 RID: 850
public bool IsCorrect = false;
// Token: 0x04000353 RID: 851
private IContainer components = null;
// Token: 0x04000354 RID: 852
private Label label5;
// Token: 0x04000357 RID: 855
private Button OK;
// Token: 0x04000358 RID: 856
private TextBox ZhuCeMa;
// Token: 0x04000359 RID: 857
private Label label4;
// Token: 0x0400035B RID: 859
private LinkLabel linkLabel1;
// Token: 0x0400035D RID: 861
private Label label3;
// Token: 0x0400035E RID: 862
private TextBox DepartName;
// Token: 0x0400035F RID: 863
private Label label6;
// Token: 0x04000360 RID: 864
private RichTextBox richTextBox1;
// Token: 0x04000362 RID: 866
private TextBox XQDate;
// Token: 0x04000363 RID: 867
private CheckBox ck_IDCard;
// Token: 0x04000364 RID: 868
private Label label7;
private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
System.Diagnostics.Process.Start("https://weibo.com/279977366");
}
public string MakeSearial(string[] deanddate)
{
string text;
if (deanddate == "是")
{
text = deanddate + deanddate + "&8$dZ|3%G#@";
}
else
{
text = deanddate + deanddate + "Ze34@!-+d93";
}
text = this.GetMd5(text);
string text2 = text.Substring(0, 5);
string text3 = text.Substring(5, 5);
string text4 = text.Substring(10, 5);
string text5 = text.Substring(15, 5);
string text6 = text.Substring(20, 5);
return string.Concat(new string[]
{
text2,
"-",
text3,
"-",
text4,
"-",
text5,
"-",
text6
});
}
public string GetMd5(string ss)
{
MD5 md = MD5.Create();
string text = "";
byte[] array = md.ComputeHash(Encoding.UTF8.GetBytes(ss));
for (int i = 0; i < array.Length; i++)
{
text += array.ToString("X");
}
return text;
}
private void OK_Click(object sender, EventArgs e)
{
string text = this.DepartName.Text.Trim();
string text2 = this.XQDate.Text;
string text3 = this.ck_IDCard.Checked ? "是" : "否";
if (text == "")
{
MessageBox.Show("单位名称不能为空！");
return;
}
if (text2.IndexOf("－") > -1)
{
MessageBox.Show("请将输入法转换为半角方式，再重新输入！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Hand);
return;
}
DateTime dateTime;
if (!DateTime.TryParse(text2, out dateTime))
{
MessageBox.Show("日期格式输入错误！格式：2017-02-01", "提示", MessageBoxButtons.OK, MessageBoxIcon.Hand);
return;
}
if (this.ZhuCeMa.Text.IndexOf("－") > -1)
{
MessageBox.Show("请将输入法转换为半角方式，再重新输入！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Hand);
return;
}
this.ZhuCeMa.Text = MakeSearial(new string[]
{
text,
text2,
text3
});
}
private void Form1_Load_1(object sender, EventArgs e)
{
}
}
}
效果图：
的确是这样的不过就是去壳有难度有的dll不会去壳导致没法看到算法 下载地址呢楼主，你弄一个一键注册的吧 楼主软件下载在哪儿？谢谢！ 软件放出来更好 分析的不错啊！ 对NET不了解 求源码和软件做练习 表示叹服 支持作者！ 6666！支持！！！ 发出来吧需要