"Run an Anti spyware program such as Spyware Terminator to clean your system from any malware", as suggested by one person.
I would suggest instead that you install malwarebytes
to remove malware. Also, Microsoft Security Essentials
is my favorite Antivirus, but I don't know very much about Eset Smart Security (why didn't it remove the problem? It only notifies you of it? Kinda lame isn't it?). DO NOT uninstall an antivirus through the control panel (if that is what you want to do). Rather, download an antivirus removal tool so that you do not corrupt anything in your system.
However, Eset recommends this method of uninstallation of antivirus software: How do I uninstall or reinstall ESET Smart Security/ESET NOD32 Antivirus? (4.x) - ESET Knowledgebase