Had a weird experience today submitting samples via the retail submission page. A particular sample identified as malware by several other vendors came up as clean by Symantec/Norton. After submission, it still came up as clean (I got a response to this effect).
Oddly enough, a few days later, PC Tools detects the file, Norton does not!
I have seen a few weird things in my life, but this was new
For what it's worth, this particular malware is no more a threat, as it has been replaced by variants that Norton does detect.