Code for How to Build a WiFi Scanner in Python using Scapy Tutorial

wifi_scanner.py

from scapy.all import * from threading import Thread import pandas import time import os # initialize the networks dataframe that will contain all access points nearby networks = pandas.DataFrame(columns=["BSSID", "SSID", "dBm_Signal", "Channel", "Crypto"]) # set the index BSSID (MAC address of the AP) networks.set_index("BSSID", inplace=True) def callback(packet): if packet.haslayer(Dot11Beacon): # extract the MAC address of the network bssid = packet[Dot11].addr2 # get the name of it ssid = packet[Dot11Elt].info.decode() try: dbm_signal = packet.dBm_AntSignal except: dbm_signal = "N/A" # extract network stats stats = packet[Dot11Beacon].network_stats() # get the channel of the AP channel = stats.get("channel") # get the crypto crypto = stats.get("crypto") networks.loc[bssid] = (ssid, dbm_signal, channel, crypto) def print_all(): while True: os.system("clear") print(networks) time.sleep(0.5) def change_channel(): ch = 1 while True: os.system(f"iwconfig {interface} channel {ch}") # switch channel from 1 to 14 each 0.5s ch = ch % 14 + 1 time.sleep(0.5) if __name__ == "__main__": # interface name, check using iwconfig interface = "wlan0mon" # start the thread that prints all the networks printer = Thread(target=print_all) printer.daemon = True printer.start() # start the channel changer channel_changer = Thread(target=change_channel) channel_changer.daemon = True channel_changer.start() # start sniffing sniff(prn=callback, iface=interface)