Full user review
"Norton 360 version 220.127.116.11 failure"
performed reasonably well,identifying and eliminating "W32.SillyFDC.BAZ" on a 1.5TB external drive.
See below for a bigger problem
I tried to check a problem of unknown executable files with the same names as thousands of mp3 and jpg files on a 1TB external drive. I could see the .exe files adjacent to every one of the original files. I ran Norton 360 on the drive overall and on separate folders several times, and detected no viruses at all. I downloaded Trend Micro Housecall and found that each of those .exe files was identified as "Troj_SPNR_09FE12", including one posing as a Norton file called "Norton 360_key.txt.exe
It took a long time to clear the drive of thousands of those .exe files.
I won't be using Norton again for virus detection