ASP网站中数据库被挂木马的解决方案

<!--#include file="conn.asp"--> 
 
<% 
 
Server.ScriptTimeOut=180 Set rstSchema = conn.OpenSchema(20) 
 
k=1 
 
Do Until rstSchema.EOF '遍历数据库表 
 
If rstSchema("TABLE_TYPE")="TABLE" Then 
 
response.write K&".<font color=red><b>"&rstSchema("TABLE_NAME") & "</b></font>:" '显示表名Set rs=Server.CreateObject("ADODB.Recordset") 
 
sql="select * from [" & rstSchema("TABLE_NAME")&"]" 
 
rs.open sql,conn,1,3 For i=0 to rs.fields.count-1 '遍历表中字段If int(rs(i).Type)=129  
 
or int(rs(i).Type)=130 or int(rs(i).Type)=200 or int(rs(i).Type)=201 or int(rs(i).Type)=202 or int(rs(i).Type)=203 Then'只处理字段类型为字符型的字段 
 
conn.execute("update ["&rstSchema("TABLE_NAME")&"] set "&rs(i).name&" =replace(cast("&rs(i).name&" 
 
 as varchar(8000)),'这里放入JS木马内容','')") response.write rs(i).name &" "&rs(i).Type &" "'显示执行过的字段名。 
 
End If 
 
Next 
 
response.write "<br>" 
 
End If 
 
rstSchema.MoveNext 
 
kk=k+1 
 
Loop 
 
response.Write "执行成功" 
 
%> 

Function Cheack_Sqljs()'防止数据库外链JS注入:true为发现外链JS注入。 
 
Dim F_Post,F_Get 
 
Cheack_Sqljs=False 
 
If Request.Form<>"" Then'表单提交时的检测For Each F_Post In Request.Form If (Instr(LCase(Request.Form(F_Post)), 
 
"<script")<>0 or Instr(LCase(Request.Form(F_Post)),"</script>")<>0)  
 
and Instr(LCase(Request.Form(F_Post)),"http://")<>0 Then 
 
Cheack_Sqljs=True 
 
Exit For 
 
End If 
 
Next 
 
End If 
 
If Request.QueryString<>"" Then'QueryString提交时的检测For Each F_Get In Request.QueryString  
 
If (Instr(LCase(Request.Form(F_Get)),"<script")<>0 orInstr(LCase(Request.Form(F_Get)),"</script>")<>0)  
 
and Instr(LCase(Request.Form(F_Get)),"http://")<>0 Then 
 
Cheack_Sqljs=True 
 
Exit For 
 
End If 
 
Next 
 
End If 
 
End Function 
 
Function CheckDataFrom()'检查提交数据来源：True为数据从站外提交过来的 
 
CheckDataFrom=True 
 
server_v1=Cstr(Request.ServerVariables("HTTP_REFERER")) server_v2=Cstr(Request.ServerVariables("SERVER_NAME"))  
 
if mid(server_v1,8,len(server_v2))<>server_v2 then 
 
CheckDataFrom=False 
 
end if 
 
End Function 
 
If Cheack_Sqljs or CheckDataFrom Then 
 
Response.Write "<Script Language=JavaScript>alert('禁止执行，非法操作。');</Script>" Response.End() 
 
End If