add filter for sta

Author: Lupin3000

WifiScanner/ScanWifi.py

@@ -7,7 +7,7 @@
 from threading import Thread
 from time import sleep
 
-from scapy.layers.dot11 import Dot11, Dot11Beacon, Dot11ProbeResp, Dot11Elt, sniff
+from scapy.layers.dot11 import Dot11, Dot11Beacon, Dot11ProbeResp, Dot11ProbeReq, Dot11Elt, sniff
 
 
 def keyboard_interrupt_handler(interrupt_signal, frame):
@@ -19,7 +19,7 @@ def keyboard_interrupt_handler(interrupt_signal, frame):
     exit(1)
 
 
-def evaluate_sniffing_packet(packet):
+def evaluate_sniffing_packet_ap(packet):
     """
     Evaluate wifi packet's and print to terminal
 
@@ -53,6 +53,19 @@ def evaluate_sniffing_packet(packet):
                 print("{:<24} {:<35} {:<5} {:<7} {}".format(bssid, ssid, dbm, channel, enc))
 
 
+def evaluate_sniffing_packet_sta(packet):
+
+    if packet.haslayer(Dot11ProbeReq) and packet.haslayer(Dot11Elt):
+        if packet.type == 0 and packet.subtype == 4:
+            mac = packet.addr2
+            ssid = packet[Dot11Elt].info.decode().strip()
+
+            if not ssid:
+                ssid = "N/A"
+
+            print("STA {} looking for {}".format(mac, ssid))
+
+
 def set_specific_channel(channel_number):
     """
     Set specific wifi channel
@@ -86,13 +99,15 @@ def run_app():
     Main function to parse arguments and run
     """
     global interface
+    global filter_results
 
     description = 'Simple Wifi scanner for 2.4 GHz range'
     epilog = 'The author of this code take no responsibility for your use or misuse'
     parser = argparse.ArgumentParser(prog='ScanWifi.py', description=description, epilog=epilog)
-    parser.add_argument("interface", help="Your interface in monitor mode")
+    parser.add_argument("interface", help='Your interface in monitor mode')
     parser.add_argument('-c', '--channel', help='Channel number for 2.4 GHz range (min 1/max 14)', default=1, type=int)
     parser.add_argument('--all', help='Scan on all channels for 2.4 GHz range', default=False, action='store_true')
+    parser.add_argument('--filter', help='Filter results only for STA (Probe Req)', default=False, action='store_true')
     args = parser.parse_args()
 
     if len(args.interface) < 1:
@@ -113,13 +128,17 @@ def run_app():
         channel_changer.daemon = True
         channel_changer.start()
 
-    print("-" * 85)
-    print("{:<24} {:<35} {:<5} {:<7} {}".format("BSSID", "SSID", "dbm", "CH", "ENC"))
-    print("-" * 85)
-    sniff(prn=evaluate_sniffing_packet, iface=interface)
+    if args.filter:
+        print("-" * 85)
+        sniff(prn=evaluate_sniffing_packet_sta, iface=interface)
+    else:
+        print("-" * 85)
+        print("{:<24} {:<35} {:<5} {:<7} {}".format("BSSID", "SSID", "dbm", "CH", "ENC"))
+        print("-" * 85)
+        sniff(prn=evaluate_sniffing_packet_ap, iface=interface)
 
 
 if __name__ == "__main__":
-    interface = None
+    interface = filter_results = None
     signal.signal(signal.SIGINT, keyboard_interrupt_handler)
     run_app()

WifiScanner/readme.md

@@ -1,6 +1,6 @@
 # Wi-Fi Scanner
 
-Script to scan on 2.4 GHz Wi-Fi's (_if ENC is OPN or WEP the output is colored_).
+Script to scan on 2.4 GHz Wi-Fi's (_if ENC is OPN or WEP the output is colored_). Optional you can scan for STA's only. 
 
 ## Prepare environment
 
@@ -51,6 +51,9 @@ just run it...
 
 # start scanning on all 2.4 GHz channels
 (venv) $ sudo venv/bin/python ./ScanWifi.py wlan1 --all
+
+# filter for STA probe requests
+(venv) $ sudo venv/bin/python ./ScanWifi.py wlan1 --all --filter
 ```
 
 to interrupt press [CTRL + c]
@@ -73,4 +76,15 @@ b8:ce:a3:d6:81:d0        Dosmeethelm                         -71   6       WPA2/
 ...
 ```
 
+... with `--filter` to show only Probe Requests ...
+
+```shell
+Change channels for interface wlan1
+-------------------------------------------------------------------------------------
+STA 5c:aa:fd:b4:41:bb looking for Sonos_StdbhVj1gi78Xag6fMBAxKGPsP
+STA 45:03:2c:8b:7c:2d looking for N/A
+STA f8:0e:f9:36:d2:1c looking for Salt_2GHz_0EE4AE
+STA 44:03:2b:4b:7e:2d looking for WuTangLan
+```
+
 [Go back](../README.md)