It's another one of those 'help my data usage could support a small nation' threads.
Woke up this morning to find three emails from telecom with 80%, 100% and 120% usage alerts. Between the hours of 2030 last night and 0830 this morning TUC shows usage of over 50gigs, taking our 40gig allowance over to 65 gigs usage and counting.
Now understandably this got me out of bed in a hurry, after checking the telecom website to confirm in my panic I switched off the modem, which I've now realized means I can't check which devices were connected to the modem/router overnight. I've done a scan with Microsoft Security Essentials and malwarebytes both negative. Checking running processes shows only one or two things I don't recognize which I will be googling shortly, otherwise everything normal. The GOG.com updater was running, all games were updated last night though. Nil bit torrent/file sharing software was active. Logmein is installed but disabled at present. System Updates are set manual.
Chrome was open with a couple of dozen tabs (mostly wedding research). There was a video website open but nil active streams (although several annoying popups of the dating/casino type were open). Other sites were along the eBay, pcgamer, and IMDB ilk. Wedding based websites were hotels and dresses etc.
We have a TiVo which sits there Unwatched most of the time, connected via wifi (which should be zero rated still?). And an iPhone and printer connected to wifi. Theres the one laptop as above, Otherwise no other devices that would connect.
Any other thoughts on what to check? I'll be doing a hijack this check shortly on processes and memory, and than running full scans with MSE and MWB. After that the next step would be installing a network monitor and watching traffic closely. As we are already paying for 25gigs plus overage I'd like to make this the last option if all else fails.
Our computer is regularly scanned and locked down with all updates applied. Wifi is WPA2/WPA-PSK mixed with reasonably strong password.
Any thoughts would be gladly accepted!
Ps: ignore any typos or auto corrects above, using iPhone which has a healthy distaste for proper English.