View Full Version : Internet Connection.. sending files without instruction

10-09-2001, 07:08 PM
Basically when I connect to the Internet my computer sends about 4.00 MB of data to some unkown recipient. Where do I start looking to find the source, course.

10-09-2001, 07:52 PM
Check what apps you have running (Ctrl-Alt-Delete).

It probably is spyware (although 4mb is a lot).
Or prehaps one of the Outlook Worms, eg Sircam.

You can get a list of active connections by running NETSTAT from the DOS prompt.
Although a firewall will also tell you which app is making the transfers.

10-09-2001, 09:03 PM
ZoneAlarm a free personal firewall should be able to tell you which program is phoning home.


11-09-2001, 08:58 AM
Sounds suspicious - as BM says, 4M is a LOT. Run Netstat -n with the PC both connected to the Net and when it's disconnected - if a port is open while the PC is not connected that's a sure hint that you have a trojan imbedded. Suggest you do a thorough anti-v scan.