Dim properties As IPGlobalProperties = IPGlobalProperties.GetIPGlobalProperties()
Dim stat As IcmpV4Statistics = properties.GetIcmpV4Statistics()
Console.WriteLine(stat.MessagesSent)
Console.ReadLine()
The rest should bee easy to figure out. Just check if the value changed and you will know that something is being uploaded.
I don't know, obviously moti din't even try googling it, so I did and that is what I got. The other way is monitoring traffic on ports which i don't know if that is possible, and the framework does not have that functionality built in. You could also try Monitoring applications traffic but that is also not in the framework although I have seen it been done in a .net app.