It's a tracking cookie.
JS
"ralphs" <ralph08260 DeleteThis @yahoo.com> wrote in message
news:uoAGzkREIHA.5160@TK2MSFTNGP05.phx.gbl...
> Windows Defender reports that I have a threat. It won't show what the
> threat is but does say it is in the Hosts file.
>
> So I made a copy of the file and told Defender to fix the threat. Here is
> what it deleted.
>
> 127.0.0.1 ad.doubleclick.net
>
> Where is the threat?
>
>