Stealing Wifi Using Directional Antenna?

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Koo2r

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Nov 11, 2013
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I believe I have covered all the bases on this one, but I'm still pretty sure my next door neighbor is stealing my Wifi. So, I noticed that my neighbor mounted what looks like a directional antenna on his roof and it just happened to be pointing directly at the room where my wireless router was located.(Our houses are very close together) I configured the router with WPA2-PSK, disabled the SSID, set a MAC filter, and changed the default gateway to an odd 192.168.x.x IP address. For other reasons, I had to relocate my router to a completely different room and shortly after, my neighbor's antenna just happened to point right at the new location...still! I have checked the router's wifi log history, and all of the MACs are my own devices. I know this guy, and he's definitely more technically savvy than me, and I'm not too lost myself. Is there a way he could be piggybacking or tunneling through my laptop's connection in a way that my router would only see MY laptop? If so, how could I tell? I tried using Wireshark, but I honestly can't make too much sense of it. There are so many concurrent connections associated with a single webpage (such as Google analytics, yming, various MS Exchange services, ISP services, ...etc). Any help would be much appreciated.
 
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Someone Somewhere
Changing/hiding the SSID does next to nothing - it's like a five minute job to get the new one.

If you want to, you can break WPA2 in a couple of hours on something with lots of processing power, IIRC.

If he's spoofing your MAC addresses (again a couple of minutes job), they'll show up as your own, though they'll show as connected even when yours aren't.

Get a sheet of tin foil and put it on the wall between your router and his place. Or, you know, go and talk to him.

EDIT: One more bit of advice: turn off WPS (or any other term for a one-button or PIN connection). It's about as secure as a wet paper bag.
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patrick47018

patrick47018

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Jan 14, 2013
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Well I kind of doubt that he is using your WiFi with all the measures you have taken. But keep in mind that there are ways of breaking into someones WiFi, did you change the SSID so even if he tried to connect to it although it is disables it won't be the correct name any longer?
 
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Someone Somewhere

Someone Somewhere

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Sep 23, 2012
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Changing/hiding the SSID does next to nothing - it's like a five minute job to get the new one.

If you want to, you can break WPA2 in a couple of hours on something with lots of processing power, IIRC.

If he's spoofing your MAC addresses (again a couple of minutes job), they'll show up as your own, though they'll show as connected even when yours aren't.

Get a sheet of tin foil and put it on the wall between your router and his place. Or, you know, go and talk to him.

EDIT: One more bit of advice: turn off WPS (or any other term for a one-button or PIN connection). It's about as secure as a wet paper bag.
 
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allennnn

allennnn

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Nov 25, 2012
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Is the password a word or random characters number with a mix of lower and capital?

With wireshark you shuld be able to see sites you aren't visiting you will see advert urls, or close your browser.
 
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bill001g

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Aug 9, 2012
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All the methods a home user has to crack WPA2 are defeated by using a couple of special characters and a key longer than 8 characters. Maybe a government could crack it but then you just use enterprise mode with a radius server with certificates and they have nothing to attempt to crack since the key exchange is no longer exposed.

A MUCH better solution to this if you really think he is using your stuff is to let him and make sure he knows you know he is using it. Some random redirects of his web pages to ones that say "ALL YOUR DATA IS MINE" tend to scare off most people. You are in the perfect position to attack all his data. You can do all kinds of nasty things to him and legally he can do nothing. You can likely even crack his HTTPS sessions if he is stupid. This is man in the middle attack that he volunteers for.

The script kiddies need to watch out they may run into a true hacker who is just waiting for them to visit.

 
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