WP header.php var a=”‘1Aqapkrv’02v{rg injection detected on website?

See: http://killmalware.com/vitaminasyantioxidantes.info/#
and https://www.virustotal.com/nl/url/6a65364984986d08fde1c392effe00cf3efa30f02cd11cf0cba5972374aa5495/analysis/1444951582/
with no detection.
Detected https://sitecheck.sucuri.net/results/vitaminasyantioxidantes.info#sitecheck-details
as: http://labs.sucuri.net/db/malware/malware-entry-mwexploitkitblackhole1?v282.2
Description of that malware: https://www.malwareremovalservice.com/wordpress-header-php-var-a1aqapkrv02vrg-injection/
Missed here: http://quttera.com/detailed_report/vitaminasyantioxidantes.info
WP version is current, no plug-ins detected.
The theme has been found by examining the path /wp-content/themes/ theme name /

Ultimate 3.4http://buddhathemes.com/themes/ultimate
Warning User Enumeration is possible
The first two user ID’s were tested to determine if user enumeration is possible.

ID User Login
1 None Manuel
2 None
It is recommended to rename the admin user account to reduce the chance of brute force attacks occurring. As this will reduce the chance of automated password attackers gaining access. However it is important to understand that if the author archives are enabled

Linked javascript:
-http://vitaminasyantioxidantes.info/wp-includes/js/jquery/jquery.js?ver=1.11.3
-http://vitaminasyantioxidantes.info/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/jquery.validate.min.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/sendmail.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/jquery.tabs.min.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/tinynav.min.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/isotope.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/prettyphoto/jquery.prettyPhoto.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/jquery.smartresize.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/jquery.jcarousel.min.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/jquery.cycle.all.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/jquery.tipTip.minified.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/jqzoom/jquery.jqzoom-core-pack.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/common.js?ver=4.3.1
-http://vitaminasyantioxidantes.info/wp-content/themes/ultimate/framework/js/public/shortcodes.js?ver=4.3.1

polonus (volunteer website security analyst and website error-hunter)