I am running Symantec Antivirus Corporate on some workstations. Until now I have never had an infection on any of them. Today I discovered that one of the PCs had a couple of trojans running. Lots of random popups about "Antivir Gear" amongst other things. From the SAV log I can see, that it in fact detected these threats and quarantined them, but apparently this didnt work very well. If Symantec Antivirus cannot handle well known trojans like Antivir Gear or Cyberlog, what kind of software should I consider as a supplement? Or should I go for another AV with better built-in anti-trojan features? And if so, which one would you suggest?