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Roommates using my internet, how do I stop them?

Last response: in Networking
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June 24, 2014 5:54:05 PM

Hi

I can tell when my roommates are using my internet as they do it when I am asleep, or when it is sitting idle any other time.

I have ran Netstat -abnof in a command window to attempt to see who is using it but I do not read the text very well I'm afraid.(I can post a copy here of the text to see if anyone else can tell me what is going on.

Could they watch everything I send or receive from the internet while I am online?

How could I tell if they have installed software to watch my online activity and record what is being written?

I am rather lost here but I do know somethings about the use of the internet, and there is just to much info and none of it seems to answer my questions.

Any help would be greatly appreciated!

Robert
June 24, 2014 5:59:25 PM

im guessing you have access to a router? also is this just one computer in use in question or multiple computers.

Could they watch everything I send or receive from the internet while I am online? Possibly yes if they have the knowledge
How could I tell if they have installed software to watch my online activity and record what is being written? Run a malwarebytes scan
@ http://www.malwarebytes.org/ which will search for malware especially keyloggers and trojans
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June 24, 2014 5:59:27 PM

Do they have that much knowledge of computers and networks? Or are you just being paranoic?
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June 24, 2014 6:05:07 PM

Define ""my internet".

Are you all connected to the same shared service?
Are you concerned that they are sniffing into your traffic or PC?
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June 24, 2014 6:44:20 PM

I agree with malwarebytes, great program. Run the free trial.

As for your internet. Is it yours or shared with your roommates? Who owns and controls the wireless you connect to?
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June 24, 2014 6:50:19 PM

iceblitzed said:
im guessing you have access to a router? also is this just one computer in use in question or multiple computers.

Could they watch everything I send or receive from the internet while I am online? Possibly yes if they have the knowledge
How could I tell if they have installed software to watch my online activity and record what is being written? Run a malwarebytes scan
@ http://www.malwarebytes.org/ which will search for malware especially keyloggers and trojans


Ok I'll run Malwarebytes. I have used that before a looong time ago. Did not know it looked for key-loggers too.... As for knowledge the two guys who normally live downstairs are pretty much drug addicts one of them sits around and plays his XBox 360 and smokes pot during the day and not much else except tv. The other guy who normally lives downstairs just comes around once in a while to check on his cameras he has setup all over the outside of the house...lol They keep running out of power and need to be reset or something for memory as the other upstairs guy goes outside in front of them all day long for this or that...I think he knows the cameras are there and he's just messing with them that way...

Then recently a new guy who does not pay rent just moved into and lives in the living room downstairs during the night, then takes off with his computer during the day and sleeps , He is the one who knows something about computers and has talked (loudly) about what I am doing online with emails I send to Management... He has a good running knowledge of things apparently.

Can a person tell from the Netstat file(I'll upload it if you ask) I saved whether someone is connecting to my internet with another computer or modem(only one computer/modem is supposed to be hooked up, Mine) but they seem to connect all night whether mine is on or not. I am not being paranoid as I have heard them talking loudly about things I do on my internet account like the sending of emails when they should have absolutely no way of knowing about it.

I do not have a router since I only had the one modem and computer, will this completely negate their ability to access my modem so I could leave it on all night? I could setup the router with DNS or what ever its called so that only my computer would be able to connect to that but what if they have another modem their using? Can the other modem be setup so that it gives false info about itself pretending to be my modem instead?.. Sorry for all the questions but I would really like to get to the bottom of this and acquire the knowledge to protect myself from ID theft any more than has already been done...
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June 24, 2014 6:55:13 PM

USAFRet said:
Define ""my internet".

Are you all connected to the same shared service?
Are you concerned that they are sniffing into your traffic or PC?


I am the only person who can and does have a internet connection here at this residence according to Comcast. I pay for it monthly. The cable that comes from the outside of the house goes into a splitter for tv only services which no one else uses. The the cable must be going into the downstairs for the other rooms and common areas to have tv is someone wanted to have it.

This is not a shared service as I am the only person on the account, but the cable from outside to my room could be compromised it is to high up the two story house for me to see how it runs.

I am concerned about their sniffing my emails and personal information that I keep on my system (if they have accessed through the internet at some point in time) I need to run the above mentioned Malwarebytes program for that I suppose.
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June 24, 2014 6:56:48 PM

Wow.
You need to be absolutely sure of where your devices are connecting to, and absolutely sure that no one else is connecting to your router device.

Most secure?
Turn off all WiFI, and connect via a Cat5e cable.
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June 24, 2014 6:59:42 PM

anti-painkilla said:
I agree with malwarebytes, great program. Run the free trial.

As for your internet. Is it yours or shared with your roommates? Who owns and controls the wireless you connect to?


I do not have wireless at all, as I have turned off the wireless card in my laptop from bios/cmos and it does not even show up in the list of hardware. so no drivers are installed for it.. Hence My computer is hooked to the modem with cat5 and the modem is then connected to the wall with coax cable which then goes outside and is supposed to go directly to the outside wall setup by Comcast which then connects to the telephone pole. I think the guy who normally does not live there has simply accessed my computer through the internet. I can find no way to do this but I may be missing something. Any ideas what I can check? Maybe open ports?

See above for other info please. Thanks to all.
Robert
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June 24, 2014 7:05:05 PM

USAFRet said:
Wow.
You need to be absolutely sure of where your devices are connecting to, and absolutely sure that no one else is connecting to your router device.

Most secure?
Turn off all WiFI, and connect via a Cat5e cable.


See below please I must have posted that after you posted a reply, Thanks! As for making sure of where my devices are connecting to how do I know? Is there a command prompt I can use besides netstat as mentioned?
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June 24, 2014 7:15:50 PM

type ipconfig in cmd.
under ethernet wireless network look for default gateway number which should be like 192.168.1.1.
copy the number and paste into address bar of browser.
you should come up with modem/router configuration options. for each different router/modem it is a different homepage.
look for something that says device list to see whose been on your computer or something and try to disable guest access or something like this.
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June 24, 2014 7:18:30 PM

Have you disable wireless on the router if it has that functionality.

I am not sure, from what you have described as the set up, how they can know what you are doing.

Do you have a password on your computer? (Sorry for asking, just making sure.) Can you lock your room while you are out?
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June 24, 2014 7:20:56 PM

RDC_Networking solution needed said:
USAFRet said:
Wow.
You need to be absolutely sure of where your devices are connecting to, and absolutely sure that no one else is connecting to your router device.

Most secure?
Turn off all WiFI, and connect via a Cat5e cable.


See below please I must have posted that after you posted a reply, Thanks! As for making sure of where my devices are connecting to how do I know? Is there a command prompt I can use besides netstat as mentioned?


For WiFi, connect to a specific SSID with a password that you and only you know, with a router that has an admin password that only you know.
For wired, turn off WiFi, and connect to to a router that has a password that you and only you know.
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June 24, 2014 7:26:59 PM

iceblitzed said:
type ipconfig in cmd.
under ethernet wireless network look for default gateway number which should be like 192.168.1.1.
copy the number and paste into address bar of browser.
you should come up with modem/router configuration options. for each different router/modem it is a different homepage.
look for something that says device list to see whose been on your computer or something and try to disable guest access or something like this.


Here's what is coming up with the ipconfig:

ipconfig
=====================================
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\User>ipconfig

Windows IP Configuration


Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : hsd1.wa.comcast.net.
IPv6 Address. . . . . . . . . . . : 2001:558:600a:8:300a:e3d7:ea3f:c119
Link-local IPv6 Address . . . . . :
IPv4 Address. . . . . . . . . . .
Subnet Mask . . . . . . . . . . . :
Default Gateway . . . . . . . . . :


Tunnel adapter isatap.hsd1.wa.comcast.net.:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.wa.comcast.net.

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . :
Link-local IPv6 Address . . . . . :
Default Gateway . . . . . . . . . :
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June 24, 2014 7:27:59 PM

ok id just go ahead and type 192.168.1.1 into the browser or 192.168.1.105
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June 24, 2014 7:38:34 PM

iceblitzed said:
ok id just go ahead and type 192.168.1.1 into the browser or 192.168.1.105


Ok typed them into firefox and it gave a black screen with "Problem loading page" The server is taking to long to respond... What am I looking for here since I obviously got nothing of note?
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June 24, 2014 7:44:40 PM

OK...we need to back up a little bit.

Is the router under your control, and the ISP bill going in your name?
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June 24, 2014 8:05:37 PM

USAFRet said:
OK...we need to back up a little bit.

Is the router under your control, and the ISP bill going in your name?


Sorry, must have been a mix up because there is no router at all...lol Like I mentioned to one of the many replies above.

Also Malwarebytes shows nothing at all. I still think(but don't know) that it could be just a open port somehow or my AVG has been corrupted. Any thoughts?

Thanks Guys.
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June 24, 2014 8:16:11 PM

Sorry, but somewhere between you and your ISP there is a router.
Probably near the entrance point of your building.
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June 24, 2014 8:28:32 PM

USAFRet said:
Sorry, but somewhere between you and your ISP there is a router.
Probably near the entrance point of your building.


Well I sure don't own one, so it must be the guy downstairs that has my internet cable from the outside wall connected to his computer, then it goes to my room through his router and computer that's how he is seeing everything I am doing on my system.

What would you suggest I do for this problem how can I get enough data to provide the police with what they would need?

And thank you!
Robert
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June 24, 2014 8:52:18 PM

So you are pumping all your data through a router that does not belong to you, through an internet account that you do not control or pay for...
...and you're wondering why random weirdos have access to your data?

From your original statement of "Roommates using my internet" - "my internet" is apparently not what it appears to be.

What specifically, do you plug your PC into get get 'internet' ?
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June 24, 2014 8:52:56 PM

Do you have a modem or how is your computer hooked up to get internet
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June 25, 2014 5:17:02 AM

Since he has a real IP in the ipconfig command it is likely he is directly attached to a modem since it is a cable connection. I suppose there could be a switch and comcast is selling 2 accounts with different ip off the same modem but I doubt it. More likely there are 2 cable modems attached to the same incoming cable. I it very unlikely the roommate could sniff the traffic.

You must ALWAYS assume someone can capture your data when you are sending it to the internet. You must be sure you use encrypted sessions for anything that is sensitive. If you consider your porn surfing habit sensitive then use a vpn.
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June 25, 2014 5:41:24 AM

USAFRet said:
So you are pumping all your data through a router that does not belong to you, through an internet account that you do not control or pay for...
...and you're wondering why random weirdos have access to your data?

From your original statement of "Roommates using my internet" - "my internet" is apparently not what it appears to be.

What specifically, do you plug your PC into get get 'internet' ?


I do control the internet account like was said above please read everything here before making statements , ok?
They are stealing "MY Internet" I have MY name on the account. They have somehow hooked up an router in between the outside wall hookup and my room.

Yes they ARE Weirdos, and a whole lot more in that direction. but because I have no control over who moves into or out of this house I am stuck with dealing with them in the best way possible. First up on that list is to protect my system from invasion again, I do this by only leaving it connected when necessary to the modem. next I am attempting to get good help here and other sites like it(I do trust Tom's) How does my internet account not appear what it is?!? This statement is without thought... Don't bother answering here if you have nothing constructive to say...

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June 25, 2014 5:45:14 AM

ezskills said:
Do you have a modem or how is your computer hooked up to get internet


I own the original modem and supposedly the only one hooked up to this account. According to Comcast This house cannot have another internet account setup on it because it is a house. At least that is what they tell me. I will be making contact with them again about this little problem of mine and see what they want to do since the use of my internet by others is considered internet theft of Comcast's internet not mine. They would prosecute the thieves so Comcast says. As for how I am hooked up please read some of the other statements above as I have already mentioned how. Thanks.
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June 25, 2014 5:47:54 AM

bill001g said:
Since he has a real IP in the ipconfig command it is likely he is directly attached to a modem since it is a cable connection. I suppose there could be a switch and comcast is selling 2 accounts with different ip off the same modem but I doubt it. More likely there are 2 cable modems attached to the same incoming cable. I it very unlikely the roommate could sniff the traffic.

You must ALWAYS assume someone can capture your data when you are sending it to the internet. You must be sure you use encrypted sessions for anything that is sensitive. If you consider your porn surfing habit sensitive then use a vpn.

I guess you have nothing of intelligence to add to this discussion and the moderator should simply ban you from this discussion all together. I don't do porn... Thanks for caring little one.

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Best solution

June 25, 2014 5:49:57 AM

If:
-you are connected directly to the modem and/or router via a Cat5 cable
-you are the only one connected to that particular device
-WiFI is turned off

...then no, they cannot use your internet or see what you are doing.

If at some point in time they also connect to that router, then yes, they can use your internet.

Solution?
Move the modem and/or router to a secure location that they cannot access.
Share
June 25, 2014 5:56:06 AM

It wold appear that Tom's has some real winners when it comes to "Digging through" information put into topics... or is it just this topic? Strange that I thought I wold get help from Tom's for this problem. The other people from another site have been much more helpful and more to the point, they read everything in the statements I provide and give "EXPERT" advice as to fixing the problem instead of just leaving many of my main points out of the topic altogether. or even better making weak attempts at putting down my cause without adding anything constructive.

So, For those who have given good advice, I thank you for your time. For those who had nothing that really helped at all go find another topic to bother.

G' Day.
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June 25, 2014 5:56:12 AM

Do u have a WiFi network
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