I don't know if here is some kind thread for these kind of questions so I made a new thread.
When I start the NIS 2009 full system scan and after it has scanned svchost.exe and for example other programs of Windows and starting(?) programs it says that it scans for example infostealer.snifula.b and backdoor.rustock.a
Does that mean that it scans if the system has infected by them or does it mean that system has already infected by them? It finds only one security risk, tracking cookie, but I can trust on it? This may sound a little dummy question but I would like to know the answer :)