Why norton won`t detect this virus ?

Hi i used Norton IS 2012 about a month ago , it was awesome , i used norton products for 2 years , but there is a virus that norton detected it before but now i don`t know what`s the problem it won`t detec it anymore . i changed windows and installed it again and update it to latest definitions and versions , but it won`t detec it again i want to use norton again but this issue made me not , please if someone know what`s the problem tell me , i attached the file and the PASS =

 

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