A tracking cookie is not a virus. Sometimes the cookies can be from harmful sites, but the cookie itself does have a virus.

Mookie1 is a tracking cookie and/or advertising service.

Probably a affiliated tracking cookie

The technology of web site tracking works in several ways. One way is for a website to place a cookie on the user's computer and other websites can access the cookie. Another way is a website embedding a 1 pixel image on the site that links to another tracking website.

Not necessarily, shopping websites all generally have tracking cookie now a days and some websites require that we load their cookies before we can view their stuff - nothing to worry about.