下载的joomla模板有黑码

<?php $wfk='PGRpdiBzdHlsZT0icG9zaXRpb246YWJzb2x1dGU7dG9wOjA7bGVmdDotOTk5OXB4OyI+CjxhIGhyZWY9Imh0dHA6Ly9qb29tbGE0ZXZlci5ydS9qb29tbGFydC8zNTQ0LWphLWNoYXJpdHkuaHRtbCIgdGl0bGU9IkpBIENoYXJpdHkgLSDRiNCw0LHQu9C+0L0gam9vbWxhIiB0YXJnZXQ9Il9ibGFuayI+SkEgQ2hhcml0eSAtINGI0LDQsdC70L7QvSBqb29tbGE8L2E+CjxhIGhyZWY9Imh0dHA6Ly9hbGx2aWRlby5pbmZvLyIgdGl0bGU9ItCS0LjQtNC10L4iIHRhcmdldD0iX2JsYW5rIj7QktC40LTQtdC+PC9hPgo8L2Rpdj4='; echo base64_decode($wfk); ?>

前台隐藏的东西是:

1 <div style="position:absolute;top:0;left:-9999px;">
2 <a href="http://joomla4ever.ru/joomlart/3544-ja-charity.html" title="JA Charity - 褕邪斜谢芯薪 joomla" target="_blank">JA Charity - 褕邪斜谢芯薪 joomla</a>
3 <a href="http://allvideo.info/" title="袙懈写械芯" target="_blank">袙懈写械芯</a>
4 </div>
原文地址:https://www.cnblogs.com/yusam/p/4826490.html