s_ta_ts.js:

The origin of these goodies seem to be pages that have been successfully spammed into various search engines over the past month or so. Users searching, as an example, for completely benign things like "writing business letters" can get a search result that ranks two or three of these fake/spammed pages on top. Clicking on any of the search results then leads the user to the never-never land of pop-ups, and, yes, his/her personal copy of s_ta_ts.js.