Trojan.gen 2/TROJ_SIREFEF.GF/RT/FU/CY reoccurring files

I'm not really sure where to start except to say that a pop-up from norton keeps telling me that it's taken care of the same files over and over again. They are as follows:

 

C: Users\Kristian\AppData\Local\{fdd033a6-f4c2-5155-af3d-6d74debfd67a}\U\80000000.@

 

C: Users\Kristian\AppData\Local\{fdd033a6-f4c2-5155-af3d-6d74debfd67a}\U\00000008.@

 

C: Users\Kristian\AppData\Local\{fdd033a6-f4c2-5155-af3d-6d74debfd67a}\U\80000032.@

 

C: Users\Kristian\AppData\Local\{fdd033a6-f4c2-5155-af3d-6d74debfd67a}\U\80000064.@

 

C: Users\Kristian\AppData\Local\{fdd033a6-f4c2-5155-af3d-6d74debfd67a}\U\000000cb.@

 

C: Users\Kristian\AppData\Local\{fdd033a6-f4c2-5155-af3d-6d74debfd67a}\U\00000004.@

 

I really don't understand why this is occuring or why they keep coming back after Norton CLEARLY scans and removes them, so I'd really appreciate the help. 

 

Thanks in advance

-Christian