Googling your issue returns a hit for almost every security software company you've ever heard of. PortableApps.com is so prone to generating false positives that they have posted the following notice on theirsupport page.
AntiVirus and AntiSpyware False Positives
Some false positive reports occasionally pop up in different antivirus products in conjunction with software. This is partially due to the compression and portablization techniques used and partially due to a failure of some antivirus companies to fully test their virus definition updates before sending them out to users. If you encounter a false positive, please test the file in another antivirus product before reporting the issue to us in the forums to ensure that it's not an error in their software. Several companies make available online scanners for individual files, so you won't even have to install software (virustotal.com, Jotti). You can also use ClamWin Portable. Thanks for your help.
So while your situation is no doubt quite aggravating, it seems to be a common issue shared by a great number of anti-malware programs. Your best course of action would be to click that "Submit to Symantec" button so the file can be examined and the false positive can be corrected.
delphinium wrote: You should be able to open Norton's main screen, go to computer settings and scroll down to where you will find "Scan exclusions." Click on configure and add the files to both auto-protect and scan exclusions. Only if you are sure it is a false positive!
This is the way to go. Just exclude from scanning and you will be fine
Actually the only way to get this to work right now is to disable Auto Protect. The Trojan Horse is a High Risk category and you can not exclude that from the scanning. So until Norton / Symantec adjusts the definitions for the scanning, the only recourse is to disable Auto Protect for the time it takes to download / install the software.
Thanks to everyone for the quick response. I was able to reinstall the files and add the exclusions (thanks to delphinium for showing me how to do that). After re-enabling Auto-Protect, everything seemed fine. However, after a couple of hours I came back to a message from Norton telling me that once again it had protected me from a trojan horse and had removed the files, despite the fact they were added in the exclusions list.
Fortunately, I did a little digging and found the other file application that will still allow me to launch the PortableApps menu. I guess it's better to be protected against nothing than to not be protected at all. It's pretty annoying at times, though. Kind of like an overprotective mother.
Thanks again to everyone for the help and suggestions. I appreciate it very much.
