So I was fooled by the Norton "critical update" tab popping up, and allowed it to run. A program was downloaded, then the machine rebooted. As that was happening I realized this had to be malware. Norton did not stop anything from running, and did not detect any intrusion. I searched for possible sources, and found info on the malware that pops up the window, but no info on fixing whatever got installed. I followed instructions for removing the Kotver trojan, just in case - but it found nothing. I deleted it anyway. Overnight, Norton found unusually high traffic from this computer to the internet - so I ran Norton power eraser and removed a .lnk file that was suspect but could not be confirmed as malicious. I ran Norton Utilities to assess any registry issues, then ran CCleaner to do the same thing, and deleted all temp files. I uninstalled and reinstalled Firefox. Last night I got the message again from Norton about unusual internet traffic, but Power Eraser found nothing. Norton AntiVirus also stopped a web attack this morning. So something is still going on with this machine and I have shut it down until I can find more info to clean it. Does anyone know what gets installed if you fall for the fake critical update? (Windows 7 64 bit)