We had conficker go through our network. We believe to have a rogue system somewhere out there. We tried wireshark to capture traffic, but nothing came up because it was only run inside of 1 vlan. We need to find this system that keeps spewing the virus out. We have a Cisco 4507 that we would like to capture traffic on port 445. Can someone give me a play by play on configuring the switch - or orther actions to squelch the virus?