I do not need a solution (just sharing information)
I anm running sep 12.1.4100 enterprise.
Since June I have had a 100 fold increase of virus.malware. I have seen Symantec quantine the same file over and over.
I even remoted in and delected a folder containing a entire malware installation and seen it immediately have the folder and files show up again.
After fighting with this I finally found in scheduled tasks a task to install it. Symantec does not remove this task nor does other malware removal programs.
Just thought I'd share this.