firewall, should be able to notify you of any out going connections with where to & where from (program & port) to allow you to allow 1 time only, every time or deny always. It is one of it's main purposes!
Several free ones available including:
http://www.personalfirewall.comodo.com/ (Pro is free, Plus is pay)
Maybe the easiest & cheapest way to check that those uploads are known to you. Good Luck!
Note: This question seemed to not be an exact fit for one section so my apology for posting it where I thought it might fit...
After reading about the download limits by ComCast I downloaded one of the free monitors I found on Cnet, BitMeter 2, and it works great, showed I am no where near the limit.
That said, I was a little surprised at how much my computer was uploading, I do only a moderate amount of email, don't upload pictures, music, movies, or anything else intentionally very often.
The meter is showing on an average day 4-6MB of upload traffic, and then every few days it will be 12-18MB. BitMeter2 only shows the volume so here is what I am looking for:
Ideally it would be a tool for 50 bucks or under that would show me exactly what is being uploaded and to where, protocol and port information would be nice to have but what I want a minimum would be something like below:
Date: 9/21/08 / Time: 10:50AM
Destination: www.xyz.com / 18.104.22.168
Program Uploading: VerCheck_xyz.exe
Content Type: Data
Data Source: Registry
Detail: (this might be a click on option to see what was uploaded)
Data Sent: xyz.exe v1.1.0 <end>
Bottom line is I would like something that lets me see exactly what is uploaded and to where as I have no idea why 18MB of data would be leaving my computer on a given day, where it going, and what is in it.
I must have read the descriptions of 20 or so network monitor programs so far and none seem to suggest they will do this, they all seem to lack: program sending the data, and/or source of the data, and/or the actual data uploaded.
HP Pavilion P4 3GHz
Windows XP SP3
MS Office w/Outlook 2003
Norton System Works 2007 (sigs current)
SpyBot Search & Destroy
<Disclaimer> I did a search using the search terms "upload content monitoring" and did not find anything to cover my specific question, so my apologies if this has been posted before but I could find nothing hunting around or by search. <End Disclaimer>