Okay, I have a question. Say you suspect a computer to have a trojan installed on it and that trojan installed a packet sniffer on said computer to sniff your network. This packet sniffer causes the computer to save all the packets, right? Is there any way to locate the packets on the computer? How about detection of the packet sniffer itself, since it isn't considered spyware?

I'm not worried about the trojan, I think I know how to get rid of it. My question more pertains to the packet sniffer. Does it save the packets on the infected computer? If so, can someone down the line access those packets and see the passwords and browsing information the packet sniffer obtained? I'm just kind of paranoid.