I have wireless disabled on my modem, so there is no chance of people abusing my Wi-Fi.
There are two laptops connected to the modem. Both have Microsoft Security Essentials properly installed and updated. No malware, no strange activity on laptops observed.
My usual traffic is 3 -5 Gigabyte daily. No games, no Netflix. But from time to time it jumps up to 180 Gigabyte per day, downloading only. Uploading is normal.
Could you solve this riddle?
MSE is mostly just virus.. i would reccomend running MALWAREBYTES as well, it is a much better malware program, just to eliminate it as a possibility.
You dont have any cloud services, etc set up? (icloud, skydrive, etc)?
(though 180 is a little excessive for those).
Do you game or use anything like steam.?
I am reluctant to install MALWAREBYTES because I am not sure I will be able to get rid of its pop-ups and ads.
But suppose I indeed have some malware on one of the laptops. Then my expectation would be the malware will send something (spam, porn, what not) and it will show as uploaded data. But I have excessive traffic only in downloading, and there are no other side effects. The laptops seem to work normal. What’s the point of writing malware which only downloads data on the affected computer and does nothing else?
Do you think it is possible Rogers is not counting the traffic correctly?
Thank you for your help. If you still think it is malware please advise how to detect/remove it without getting unwanted ads and pop-ups.
Your help is highly appreciated.
I run Malwarebytes Anti-Malware (Free) as a secondary detection application as well. Have done so for a good number of years without issue. You won't get pop-ups and ads with it. You could also install NetspeedMonitor on your pc's and laptops to monitor data traffic into and out of each device. With that installed you can look at the download and upload history on each device and compare the total to the Rogers numbers. You can find NetSpeedMonitor here: http://www.floriangilles.com/software/netspeedmonitor
Do you run anything else other than Microsoft Security Essentials? If not, you should consider other free or paid anti-virus / anti-malware applications. No one program is perfect in its detection capability, so using 2 or 3 programs is not unreasonable. One real time and one for additonal scans.
Are you 100% certain that only 2 computers are using your modem at any given time? I would verify that the wireless is disabled and the wireless indicators are off on the modem/router you have.
From there, if it's just 2 computers, I would check your network counters on your computers to see which one is super large. Assuming you are using Windows 7 or better, you should be able to track that information within Task Manager. If you are an advanced user, you could also go into the Network & Sharing Center, and view the counters directly on the network adaptor.
Hopefully this will help you track down the computer with a runaway download.
180GB/day? If my math is right, that works out to TWO MEGABYTES per second (or around 16 megabits/sec).
That's a.... lot... of bandwidth. I've had poorly-coded web sites left open in browsers use 5-10GB/day before, but 180 is a lot more. But the good news, 180 is so much that it should be easier to diagnose than a 1-2GB slow leak...
What browser do you use? I am not necessarily the biggest fan of Google Chrome, but its 'Task Manager' shows network usage per tab.
Also, play with the MS Task Manager. In Windows 7 at least, it shows network utilization on the "Networking" tab. 16 megabits/sec is about 16% of a 100 megabit link, 1.6% of a gigabit link, it should be VERY noticeable there.
What Rogers plan are you running? D2 or D3 hardware?