Sheer coincidence? Or intentionally planned spyware installation? A few moments ago I accepted the (seemingly kind) offer of World Scientific / Imperial College Press to download sample pages of their attractive-sounding new physics publication "More and Different" by Princeton University Physicist Emeritus Philip W. Anderson. As the PDF for the free sample Chapter 1 was downloading, my installation of Microsoft Security Essentials popped up with a warning that some "potentially unwanted adware" had just found its way onto my machine, in the form of files \DLeasy.net-AVM-ref202085\AVMconverter.exe [->(UPX)] and \DLeasy.net-AVM-ref202085\AVMconverter-bis.exe [->(UPX)] that serve to install the Adware:Win32/Hotbar (which, selon http://www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?name=Adware%3aWin32%2fHotbar&threatid=6204 , "installs a browser toolbar that works in Internet Explorer 6, 7, 8 and Firefox 3.6 and 4.0 ... is a multi-component adware program designed to monitor user's online browsing behavior to deliver targeted advertising ... also installs other adware components related to Win32/ClickPotato and Win32/ShopperReports ... [and more]"). As it happens, I'm still on FF 3.6.28, hence vulnerable to this. Needless to say, I let MSE quarantine it :-) . Cheers, and don't get bit by this, -- Fred [For admin and other information see: http://www.mta.ca/~cat-dist/ ]