Our firewall is set to block Active X, Exe's, Java etc etc. Currently, we receive an email alert informing us of anything that has been blocked or is deemed to be a bit dodgy. One of the recent alerts comes as an exe block from 2 different IP addresses relating to level3.net in the US. I have no idea what this could be or what involvement our systems would have in relation to this company. Does anyone know of a way I can trace what PC/Server this executable was headed before hitting our firewall? It's quite a regular occurance to see these alerts from both of these IP's and I'm intrigued as to what they are.