测试开源.net 混淆器ConfuserEx

由于公司业务需要简单的把代码加密混淆，于是了解了一下相关的工具然后打算用confuserex试试。

开源地址：https://github.com/yck1509/confuserex/

下载地址：https://github.com/yck1509/confuserex/releases

开始工作

1.简单编写一个产生随机数的winform窗口程序

 

 

 代码如下

using system;
using system.windows.forms;

namespace confuserex_test
{
    public partial class form1 : form
    {
        public form1()
        {
            initializecomponent();
        }

        private void button1_click(object sender, eventargs e)
        {
            var max = (double)numericupdown1.value;
            var min = (double)numericupdown2.value;
            random random = new random();
            double v = random.nextdouble() * (max -min) + min;
            label1.text = v.tostring();
            textbox1.appendtext(v.tostring() + "\r\n");

        }
    }
}

namespace confuserex_test
{
    partial class form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private system.componentmodel.icontainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.dispose();
            }
            base.dispose(disposing);
        }

        #region windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要修改
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void initializecomponent()
        {
            this.button1 = new system.windows.forms.button();
            this.label1 = new system.windows.forms.label();
            this.textbox1 = new system.windows.forms.textbox();
            this.numericupdown1 = new system.windows.forms.numericupdown();
            this.label2 = new system.windows.forms.label();
            this.label3 = new system.windows.forms.label();
            this.numericupdown2 = new system.windows.forms.numericupdown();
            ((system.componentmodel.isupportinitialize)(this.numericupdown1)).begininit();
            ((system.componentmodel.isupportinitialize)(this.numericupdown2)).begininit();
            this.suspendlayout();
            // 
            // button1
            // 
            this.button1.location = new system.drawing.point(225, 140);
            this.button1.name = "button1";
            this.button1.size = new system.drawing.size(213, 53);
            this.button1.tabindex = 0;
            this.button1.text = "生成随机数";
            this.button1.usevisualstylebackcolor = true;
            this.button1.click += new system.eventhandler(this.button1_click);
            // 
            // label1
            // 
            this.label1.autosize = true;
            this.label1.location = new system.drawing.point(12, 9);
            this.label1.name = "label1";
            this.label1.size = new system.drawing.size(35, 13);
            this.label1.tabindex = 1;
            this.label1.text = "label1";
            // 
            // textbox1
            // 
            this.textbox1.location = new system.drawing.point(12, 36);
            this.textbox1.multiline = true;
            this.textbox1.name = "textbox1";
            this.textbox1.scrollbars = system.windows.forms.scrollbars.both;
            this.textbox1.size = new system.drawing.size(207, 157);
            this.textbox1.tabindex = 2;
            // 
            // numericupdown1
            // 
            this.numericupdown1.location = new system.drawing.point(298, 68);
            this.numericupdown1.maximum = new decimal(new int[] {
            100000,
            0,
            0,
            0});
            this.numericupdown1.minimum = new decimal(new int[] {
            100000,
            0,
            0,
            -2147483648});
            this.numericupdown1.name = "numericupdown1";
            this.numericupdown1.size = new system.drawing.size(84, 20);
            this.numericupdown1.tabindex = 3;
            this.numericupdown1.value = new decimal(new int[] {
            100,
            0,
            0,
            0});
            // 
            // label2
            // 
            this.label2.autosize = true;
            this.label2.location = new system.drawing.point(247, 70);
            this.label2.name = "label2";
            this.label2.size = new system.drawing.size(43, 13);
            this.label2.tabindex = 5;
            this.label2.text = "最大值";
            // 
            // label3
            // 
            this.label3.autosize = true;
            this.label3.location = new system.drawing.point(247, 96);
            this.label3.name = "label3";
            this.label3.size = new system.drawing.size(43, 13);
            this.label3.tabindex = 6;
            this.label3.text = "最小值";
            // 
            // numericupdown2
            // 
            this.numericupdown2.location = new system.drawing.point(298, 94);
            this.numericupdown2.maximum = new decimal(new int[] {
            100000,
            0,
            0,
            0});
            this.numericupdown2.minimum = new decimal(new int[] {
            100000,
            0,
            0,
            -2147483648});
            this.numericupdown2.name = "numericupdown2";
            this.numericupdown2.size = new system.drawing.size(84, 20);
            this.numericupdown2.tabindex = 7;
            this.numericupdown2.value = new decimal(new int[] {
            100,
            0,
            0,
            -2147483648});
            // 
            // form1
            // 
            this.autoscaledimensions = new system.drawing.sizef(6f, 13f);
            this.autoscalemode = system.windows.forms.autoscalemode.font;
            this.clientsize = new system.drawing.size(444, 205);
            this.controls.add(this.numericupdown2);
            this.controls.add(this.label3);
            this.controls.add(this.label2);
            this.controls.add(this.numericupdown1);
            this.controls.add(this.textbox1);
            this.controls.add(this.label1);
            this.controls.add(this.button1);
            this.name = "form1";
            this.text = "confuserex加密混淆测试";
            ((system.componentmodel.isupportinitialize)(this.numericupdown1)).endinit();
            ((system.componentmodel.isupportinitialize)(this.numericupdown2)).endinit();
            this.resumelayout(false);
            this.performlayout();

        }

        #endregion

        private system.windows.forms.button button1;
        private system.windows.forms.label label1;
        private system.windows.forms.textbox textbox1;
        private system.windows.forms.numericupdown numericupdown1;
        private system.windows.forms.label label2;
        private system.windows.forms.label label3;
        private system.windows.forms.numericupdown numericupdown2;
    }
}

其功能如图：

 

 

 2.下载打开confuserex使用

2.1 将生成的exe文件拖拽到confuserex的project中

 

 

 2.2在settings中选中packer(据说dll文件不是这样的)，再点击exe文件，添加一个true。

 

 

 2.3点击protect!看到finished at xx:xx, xx:xx elapsed.表示完成

 

 

 3.测试加密混淆结果

3.1下载ilspy--(百度百科:ilspy是一个开源的.net反编译软件，使用十分方便。)

3.2将保护前编译出的exe文件拖拉到ilspy中

很方便就能够看到源码

 

3.2 将保护后的exe文件拖拉到ilspy中与之前的做对比

 

 

4.结论

简单的测试了一下，这种保护便于操作，有明显的保护效果，能够防止只会下载反编译软件来获得源码的人，但是可能不是所有反编译软件都能防止。只是做个简单保护。

后面我会做一个reflector反编译实验以及脱壳后再来反编译。

附加1

reflector反编译实验结果，保护后的直接打不开