Error signing with key because it contains a virus or its a pup, why?

Not sure what's happening but, sooner or later any snk file which i create becomes unusable and is considered a virus/pup by the compiler, anyone know why and how would i go about resolving this issue?

I have tried creating new snk files, currently at key #11, but as said before they become unusable out of nowhere and the compiler says Error signing output with public key from file 'testKey.snk' -- Operation did not complete successfully because the file contains a virus or potentially unwanted software. (Exception from HRESULT: 0x800700E1).