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肥皂的小屋

肥皂的小屋

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Print out all wifi account names and passwords on the computer with Python3.

Principle#

cmd query local wifi configuration#

Execute the command netsh wlan show profiles in cmd:

image

It can display all the WLAN configuration files on this computer. To view the password of one of them, specify name=wlan name (SSID) key=clear, for example:
netsh wlan show profiles name=SSID key=clear

image

Python's os.popen() function executes the passed parameters in cmd#

In Python, there is a file/directory library called os, which has a function called os.popen that can open a pipe from a command.

Introduction to os.popen: python os.popen method | Rookie Tutorial

This command can execute the string passed in cmd, for example os.popen('dir').read()
image

These are all the basic knowledge used.

Code Explanation#

  • First, import the library: import os

  • Then, use the os.popen() function to query the total wifi configuration:

cmd_get_allpfs = ('netsh wlan show profiles')
with os.popen(cmd_get_allpfs) as f:
    SSID_list = []
    for line in f:
        if '所有用户配置文件 :' in line:
            line = line.strip().split(":")[1]
            SSID_list.append(line)
  • If the returned content line contains the phrase ' 所有用户配置文件 :' (all user profiles), split this line using ":" and store the second part, which is the wifi name, in the wifi name list SSID_list. Then, we execute the password query statement and print it out one by one:
for SSID in SSID_list:
    cmd_get_evepf = ('netsh wlan show profiles name={} key=clear'.format(SSID))
    with os.popen(cmd_get_evepf) as r:
        evepf = r.read()
        print(evepf)
  • Format each SSID in the list and pass it into the query statement, then print the query content. The effect is as follows:
    image

Of course, if you just want to simply obtain the SSID and password, for example:

SSID_name1:password1
SSID_name2:password2

You just need to make a simple modification. The following is the complete code to obtain SSID:password:

#!/usr/bin/python
# -*- coding: utf-8 -*-
'''
@author: soapffz
@fucntion: Print all wifi account names and passwords on the computer
@time: 2018-12-15
'''

import os

cmd_get_allpfs = ('netsh wlan show profiles')
with os.popen(cmd_get_allpfs) as f:
    SSID_list = []
    for line in f:
        if '所有用户配置文件 :' in line:
            line = line.strip().split(":")[1]
            SSID_list.append(line)

PASS_list = []

for SSID in SSID_list:
    cmd_get_evepf = ('netsh wlan show profiles name={} key=clear'.format(SSID))
    with os.popen(cmd_get_evepf) as r:
        for line in r:
            if '关键内容' in line:
                line = line.strip().split(":")[1]
                PASS_list.append(line)

for i in range(len(SSID_list)):
    print("{}:{}".format(SSID_list[i], PASS_list[i]))
  • The effect is as follows:

image

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