Python Penetration Testing Cookbook

How to do it...

Follow the steps to write a script to expose hidden SSIDs:

1. Create a sniff-hidden-ssid.py file and open it in the editor.
2. Import the scapy module and create a dictionary for the identified SSIDs:

from scapy.all import *
hiddenSSIDs = dict()  

3. Now create the function to parse the hidden SSIDs from the packets:

def parseSSID(pkt):
if pkt.haslayer(Dot11Beacon) or pkt.haslayer(Dot11ProbeResp):
   if not hiddenSSIDs.has_key(pkt[Dot11].addr3):
         ssid       = pkt[Dot11Elt].info
         bssid      = pkt[Dot11].addr3
         channel    = int( ord(pkt[Dot11Elt:3].info))
         capability = pkt.sprintf("{Dot11Beacon%Dot11Beacon.cap%}\{Dot11ProbeResp:%Dot11ProbeResp.cap%}")
           if re.search("privacy", capability): 
              encrypted = 'Y'
           else: 
              encrypted  = 'N'
     hiddenSSIDs[pkt[Dot11].addr3] ...