What do i do with this Infection?

Hello -  during quick scan with Malwarebytes 1.75 this was found and I   'quaranteened it:

...Stolen.Data/Document & Settings/all users/appl/data/SMR Resuts 308.dat.

 

I would appreciate greatly any feedback and suggestions. I.E:  is there anything in that area it's 'stored' that i need for my O.S. and by deleting it would i lose anything else 'important' ?

          if you tell me to 'delete' it from Quarentene, will that then remove it totally from my computer and how did  I get it ?  

     ( I did a full scan with NISS after also - and today redid a Malware Bytes quick scan - all clean)

Thanks for any help - Edythe