Ok...here's the deal. I just downloaded and installed Trojan Guarder 3.87 and when I launched it, it found two files right off and identified them as trojans - igfxtray.exe , hkcmd.exe . In addition, when I clicked the "Network" button on the main window, I notice there's an entry under "Local Port" that reads 5000:Blazer 5 . Is this a trojan? If so, how do I get rid of it?

P.S. - Is there a way to determine where a trojan came from?