[Dick Dastardly]

In 42 days my new internet connection has transmitted 5.21 gigs of data. How do I find out what's being transmitted and how to stop it please? Do I have a trojan or something? Can somebody help me please.

[rangerdud105]

What did you use to scan with? Try Malwarebyte or Avira

[1SillyBilly]

Run two or three free web based AV scanners.
http://housecall.trendmicro.com/
http://www.ewido.net/en/onlinescan/
http://www.eset.com/threat-center/cac.php
http://www.bitdefender.com/scan8/
http://www.kaspersky.com/virusscanner
http://www.pandasoftware.com/products/ActiveScan.htm
http://security.symantec.com/
http://www.windowsecurity.com/trojanscan/

Record the malware names, and file names and locations, of any malware the scans find. Repair, quarantine or delete any malware found.

I would also recommend installing Spybot, updating it, Immunize all protection, and run it.
http://www.safer-networking.org/en/download/index.html

[ToXiCaTioN.d]

If you've gotten this information from your ISP's website don't completely trust it. Currently, my ISP says that I've used 51 GB of bandwidth this month, which is 100% incorrect due to the fact that the month just started.

Try phoning them and asking how much you've used, it should be more accurate.

[TechOutsider]

5.21 gigs/ 42 days, sounds normal.

Do you use any AV?

[ToXiCaTioN.d]

Originally Posted by TechOutsider

5.21 gigs/ 42 days, sounds normal.

Do you use any AV?

If it sounds normal then why are you asking if he uses a anti-virus?