when Norton antivirus detects something as suspicious and it is a file that is ok like ehtray.exe or something like that, does it mean that the file is infected, or does it mean that the file has some element that makes it appear that it might be infected? like a false positive? The entry does not remove teh file and says there is no action to take. It happens periodically and I wonder is it part of the “heuristic” detection(?)?