I've just had the following AV alert!
Was the virus detected during a Simplicity Studio update or when did it occur? I have seen false positive malware detection reported on the .exe files in adapter packs, but this is different than that. I will also respond to the support case that was created for this issue. If possible please use one of the online scanner tools available from different anti-virus companies to confirm it the files are really infected or not. This is the first report I'm seeing of this type of infection, so I do thing it is an isolated event. The screenshot you uploaded shows two versions of the same file being infected. I have scanned several recent installations of that file and I haven't found any that were infected.