Why do I see a warning about "Trojan horses" when I use FTP to publish files?
If you use the "Norton Internet Security" or "Norton Personal Firewall" security programs that have the "Internet Worm Protection" feature, you may see warnings about "Trojan horse" programs when you publish your files via FTP.
The following are examples of these messages:
Details: Rule "Default Block SubSeven 2.1/2.2 Trojan horse" blocked communication. Local address: All local network adapters(4267). Details: Rule "Default Block DeepThroat Trojan horse" blocked communication. Local address: All local network adapters(3150).
These messages are just a flaw in the Norton program, not a real security problem. See this page on the Symantec (Norton) support site for details:
As that page says, you may be able to avoid the problem by switching to passive mode FTP connections.
If you are unable to stop the warning messages from appearing, you should contact Symantec (Norton) technical support for assistance.