一个查ASP木马的小东东
投稿：mdxy-dxy
关于查ASP木马的程序，记得半年前在八进制发了一个测试版（具体的URL:http://forum.eviloctal.com/read-htm-tid-19665.html），得到很多朋友的指导，学到了很多东西，非常感谢他们。现在我发的这个升级版，修补了以前的bug，加入了对一些组件写文件函数的检测，更加趋于完美了，个人认为想绕过去有点难度哦。
这回的默认密码是security
当然啦，哈哈，lake2“比武招亲”，欢迎各位朋友提出绕过检测的马马来，一经证实，lake2将把我自己写的某ASP木马“嫁”给他^_^ 特别有创意的，送你一个我最新弄出来的脚本，具体嘛，嘿嘿，到时候就知道啦。
战书已下，谁来迎战？
源码,另存为asp文件即可使用:
<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>
<%
’设置密码
PASSWORD = "security"
dim Report
if request.QueryString("act")="login" then
if request.Form("pwd") = PASSWORD then session("pig")=1
end if
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>Scan WebShell -- ASPSecurity For Hacking</title>
<style type="text/css">
<!--
body,td,th {
font-size: 12px;
}
-->
</style>
</head>
<body>
<%If Session("pig") <> 1 then%>
<form name="form1" method="post" action="?act=login">
<div align="center">Password:
<input name="pwd" type="password" size="15">
<input type="submit" name="Submit" value="提交">
</div>
</form>
<%
else
if request.QueryString("act")<>"scan" then
%>
<form action="?act=scan" method="post" name="form1">
<p><b>填入你要检查的路径：</b>
<input name="path" type="text" style="border:1px solid #999" value="." size="30" />
<br>
* 网站根目录的相对路径，填“\”即检查整个网站；“.”为程序所在目录<br>
<br>
你要干什么:
<input name="radiobutton" type="radio" value="sws" checked>
查ASP木马
<input type="radio" name="radiobutton" value="sf">
搜索符合条件之文件<br>
<br>
-------------- 如果搜索文件需将以下内容填写完整 ------------------<br>
<br>
查找内容：
<input name="Search_Content" type="text" id="Search_Content" style="border:1px solid #999" size="20">
* 要查找的字符串，不填就只进行日期检查<br/>
修改日期：
<input name="Search_Date" type="text" style="border:1px solid #999" value="<%=Left(Now(),InStr(now()," ")-1)%>" size="20">
* 多个日期用;隔开，任意日期填写<a href="#" onClick="javascript:form1.Search_Date.value=’ALL’">ALL</a><br/>
文件类型：
<input name="Search_FileExt" type="text" style="border:1px solid #999" value="*" size="20">
* 类型之间用,隔开，*表示所有类型 <br>
<br>
<input type="submit" value=" 开始扫描 " style="background:#fff;border:1px solid #999;padding:2px 2px 0px 2px;margin:4px;border-width:1px 3px 1px 3px" />
</p>
</form>
<%
else
server.ScriptTimeout = 600
if request.Form("path")="" then
response.Write("No Hack")
response.End()
end if
if request.Form("path")="\" then
TmpPath = Server.MapPath("\")
elseif request.Form("path")="." then
TmpPath = Server.MapPath(".")
else
TmpPath = Server.MapPath("\")&"\"&request.Form("path")
end if
timer1 = timer
Sun = 0
SumFiles = 0
SumFolders = 1
If request.Form("radiobutton") = "sws" Then
DimFileExt = "asp,cer,asa,cdx"
Call ShowAllFile(TmpPath)
Else
If request.Form("path") = "" or request.Form("Search_Date") = "" or request.Form("Search_FileExt") = "" Then
response.Write("缉捕条件不完全，恕难从命<br><br><a href=’javascript:history.go(-1);’>请返回重新输入</a>")
response.End()
End If
DimFileExt = request.Form("Search_fileExt")
Call ShowAllFile2(TmpPath)
End If
%>
<table width="100%" border="0" cellpadding="0" cellspacing="0" class="CContent">
<tr>
<th> Scan WebShell -- ASPSecurity For Hacking
</tr>
<tr>
<td class="CPanel" style="padding:5px;line-height:170%;clear:both;font-size:12px">
<div id="updateInfo" style="background:ffffe1;border:1px solid #89441f;padding:4px;display:none"></div>
扫描完毕！一共检查文件夹<font color="#FF0000"><%=SumFolders%></font>个，文件<font color="#FF0000"><%=SumFiles%></font>个，发现可疑点<font color="#FF0000"><%=Sun%></font>个
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td valign="top">
<table width="100%" border="1" cellpadding="0" cellspacing="0" style="padding:5px;line-height:170%;clear:both;font-size:12px">
<tr>
<%If request.Form("radiobutton") = "sws" Then%>
<td width="20%">文件相对路径</td>
<td width="20%">特征码</td>
<td width="40%">描述</td>
<td width="20%">创建/修改时间</td>
<%else%>
<td width="50%">文件相对路径</td>
<td width="25%">文件创建时间</td>
<td width="25%">修改时间</td>
<%end if%>
</tr>
<p>
<%=Report%>
<br/></p>
</table></td>
</tr>
</table>
</td></tr></table>
<%
timer2 = timer
thetime=cstr(int(((timer2-timer1)*10000 )+0.5)/10)
response.write "<br><font size=""2"">本页执行共用了"&thetime&"毫秒</font>"
end if
end if
%>
<hr>
<div align="center">本程序取自<a href="http://www.0x54.org" target="_blank">雷客图ASP站长安全助手</a>的ASP木马查找和可疑文件搜索功能<br>
powered by <a href="http://lake2.0x54.org" target=_blank>lake2</a> ( Build 20060615 ) </div>
</body>
</html>
<%
’遍历处理path及其子目录所有文件
Sub ShowAllFile(Path)
Set FSO = CreateObject("Scripting.FileSystemObject")
if not fso.FolderExists(path) then exit sub
Set f = FSO.GetFolder(Path)
Set fc2 = f.files
For Each myfile in fc2
If CheckExt(FSO.GetExtensionName(path&"\"&myfile.name)) Then
Call ScanFile(Path&Temp&"\"&myfile.name, "")
SumFiles = SumFiles + 1
End If
Next
Set fc = f.SubFolders
For Each f1 in fc
ShowAllFile path&"\"&f1.name
SumFolders = SumFolders + 1
Next
Set FSO = Nothing
End Sub
’检测文件
Sub ScanFile(FilePath, InFile)
If InFile <> "" Then
Infiles = "<font color=red>该文件被<a href=""http://"&Request.Servervariables("server_name")&"/"&tURLEncode(InFile)&""" target=_blank>"& InFile & "</a>文件包含执行</font>"
End If
Set FSOs = CreateObject("Scripting.FileSystemObject")
on error resume next
set ofile = fsos.OpenTextFile(FilePath)
filetxt = Lcase(ofile.readall())
If err Then Exit Sub end if
if len(filetxt)>0 then
’特征码检查
filetxt = vbcrlf & filetxt
temp = "<a href=""http://"&Request.Servervariables("server_name")&"/"&tURLEncode(replace(replace(FilePath,server.MapPath("\")&"\","",1,1,1),"\","/"))&""" target=_blank>"&replace(FilePath,server.MapPath("\")&"\","",1,1,1)&"</a>"
’Check "WScr"&DoMyBest&"ipt.Shell"
If instr( filetxt, Lcase("WScr"&DoMyBest&"ipt.Shell") ) or Instr( filetxt, Lcase("clsid:72C24DD5-D70A"&DoMyBest&"-438B-8A42-98424B88AFB8") ) then
Report = Report&"<tr><td>"&temp&"</td><td>WScr"&DoMyBest&"ipt.Shell 或者 clsid:72C24DD5-D70A"&DoMyBest&"-438B-8A42-98424B88AFB8</td><td><font color=red>危险组件，一般被ASP木马利用</font>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End if
’Check "She"&DoMyBest&"ll.Application"
If instr( filetxt, Lcase("She"&DoMyBest&"ll.Application") ) or Instr( filetxt, Lcase("clsid:13709620-C27"&DoMyBest&"9-11CE-A49E-444553540000") ) then
Report = Report&"<tr><td>"&temp&"</td><td>She"&DoMyBest&"ll.Application 或者 clsid:13709620-C27"&DoMyBest&"9-11CE-A49E-444553540000</td><td><font color=red>危险组件，一般被ASP木马利用</font>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End If
’Check .Encode
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = "\bLANGUAGE\s*=\s*[""]?\s*(vbscript|jscript|javascript).encode\b"
If regEx.Test(filetxt) Then
Report = Report&"<tr><td>"&temp&"</td><td>(vbscript|jscript|javascript).Encode</td><td><font color=red>似乎脚本被加密了</font>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End If
’Check my ASP backdoor :(
regEx.Pattern = "\bEv"&"al\b"
If regEx.Test(filetxt) Then
Report = Report&"<tr><td>"&temp&"</td><td>Ev"&"al</td><td>e"&"val()函数可以执行任意ASP代码，被一些后门利用。其形式一般是：ev"&"al(X)<br>但是javascript代码中也可以使用，有可能是误报。"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End If
’Check exe&cute backdoor
regEx.Pattern = "[^.]\bExe"&"cute\b"
If regEx.Test(filetxt) Then
Report = Report&"<tr><td>"&temp&"</td><td>Exec"&"ute</td><td><font color=red>e"&"xecute()函数可以执行任意ASP代码，被一些后门利用。其形式一般是：ex"&"ecute(X)</font><br>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End If
’----------------------Start Update 200605031-----------------------------
’Check .Create&TextFile and .OpenText&File
regEx.Pattern = "\.(Open|Create)TextFile\b"
If regEx.Test(filetxt) Then
Report = Report&"<tr><td>"&temp&"</td><td>.CreateTextFile|.OpenTextFile</td><td>使用了FSO的CreateTextFile|OpenTextFile函数读写文件"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End If
’Check .SaveT&oFile
regEx.Pattern = "\.SaveToFile\b"
If regEx.Test(filetxt) Then
Report = Report&"<tr><td>"&temp&"</td><td>.SaveToFile</td><td>使用了Stream的SaveToFile函数写文件"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End If
’Check .&Save
regEx.Pattern = "\.Save\b"
If regEx.Test(filetxt) Then
Report = Report&"<tr><td>"&temp&"</td><td>.Save</td><td>使用了XMLHTTP的Save函数写文件"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End If
’------------------ End ----------------------------
Set regEx = Nothing
’Check include file
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = "<!--\s*#include\s*file\s*=\s*"".*"""
Set Matches = regEx.Execute(filetxt)
For Each Match in Matches
tFile = Replace(Mid(Match.Value, Instr(Match.Value, """") + 1, Len(Match.Value) - Instr(Match.Value, """") - 1),"/","\")
If Not CheckExt(FSOs.GetExtensionName(tFile)) Then
Call ScanFile( Mid(FilePath,1,InStrRev(FilePath,"\"))&tFile, replace(FilePath,server.MapPath("\")&"\","",1,1,1) )
SumFiles = SumFiles + 1
End If
Next
Set Matches = Nothing
Set regEx = Nothing
’Check include virtual
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = "<!--\s*#include\s*virtual\s*=\s*"".*"""
Set Matches = regEx.Execute(filetxt)
For Each Match in Matches
tFile = Replace(Mid(Match.Value, Instr(Match.Value, """") + 1, Len(Match.Value) - Instr(Match.Value, """") - 1),"/","\")
If Not CheckExt(FSOs.GetExtensionName(tFile)) Then
Call ScanFile( Server.MapPath("\")&"\"&tFile, replace(FilePath,server.MapPath("\")&"\","",1,1,1) )
SumFiles = SumFiles + 1
End If
Next
Set Matches = Nothing
Set regEx = Nothing
’Check Server&.Execute|Transfer
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = "Server.(Exec"&"ute|Transfer)([ \t]*|\()"".*"""
Set Matches = regEx.Execute(filetxt)
For Each Match in Matches
tFile = Replace(Mid(Match.Value, Instr(Match.Value, """") + 1, Len(Match.Value) - Instr(Match.Value, """") - 1),"/","\")
If Not CheckExt(FSOs.GetExtensionName(tFile)) Then
Call ScanFile( Mid(FilePath,1,InStrRev(FilePath,"\"))&tFile, replace(FilePath,server.MapPath("\")&"\","",1,1,1) )
SumFiles = SumFiles + 1
End If
Next
Set Matches = Nothing
Set regEx = Nothing
’Check Server&.Execute|Transfer
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = "Server.(Exec"&"ute|Transfer)([ \t]*|\()[^""]\)"
If regEx.Test(filetxt) Then
Report = Report&"<tr><td>"&temp&"</td><td>Server.Exec"&"ute</td><td><font color=red>不能跟踪检查Server.e"&"xecute()函数执行的文件。请管理员自行检查</font><br>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
End If
Set Matches = Nothing
Set regEx = Nothing
’Check RunatScript
Set XregEx = New RegExp
XregEx.IgnoreCase = True
XregEx.Global = True
XregEx.Pattern = "<scr"&"ipt\s*(.|\n)*?runat\s*=\s*""?server""?(.|\n)*?>"
Set XMatches = XregEx.Execute(filetxt)
For Each Match in XMatches
tmpLake2 = Mid(Match.Value, 1, InStr(Match.Value, ">"))
srcSeek = InStr(1, tmpLake2, "src", 1)
If srcSeek > 0 Then
srcSeek2 = instr(srcSeek, tmpLake2, "=")
For i = 1 To 50
tmp = Mid(tmpLake2, srcSeek2 + i, 1)
If tmp <> " " and tmp <> chr(9) and tmp <> vbCrLf Then
Exit For
End If
Next
If tmp = """" Then
tmpName = Mid(tmpLake2, srcSeek2 + i + 1, Instr(srcSeek2 + i + 1, tmpLake2, """") - srcSeek2 - i - 1)
Else
If InStr(srcSeek2 + i + 1, tmpLake2, " ") > 0 Then tmpName = Mid(tmpLake2, srcSeek2 + i, Instr(srcSeek2 + i + 1, tmpLake2, " ") - srcSeek2 - i) Else tmpName = tmpLake2
If InStr(tmpName, chr(9)) > 0 Then tmpName = Mid(tmpName, 1, Instr(1, tmpName, chr(9)) - 1)
If InStr(tmpName, vbCrLf) > 0 Then tmpName = Mid(tmpName, 1, Instr(1, tmpName, vbcrlf) - 1)
If InStr(tmpName, ">") > 0 Then tmpName = Mid(tmpName, 1, Instr(1, tmpName, ">") - 1)
End If
Call ScanFile( Mid(FilePath,1,InStrRev(FilePath,"\"))&tmpName , replace(FilePath,server.MapPath("\")&"\","",1,1,1))
SumFiles = SumFiles + 1
End If
Next
Set Matches = Nothing
Set regEx = Nothing
’Check Crea"&"teObject
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = "CreateO"&"bject[ |\t]*\(.*\)"
Set Matches = regEx.Execute(filetxt)
For Each Match in Matches
If Instr(Match.Value, "&") or Instr(Match.Value, "+") or Instr(Match.Value, """") = 0 or Instr(Match.Value, "(") <> InStrRev(Match.Value, "(") Then
Report = Report&"<tr><td>"&temp&"</td><td>Creat"&"eObject</td><td>Crea"&"teObject函数使用了变形技术。可能是误报"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
Sun = Sun + 1
exit sub
End If
Next
Set Matches = Nothing
Set regEx = Nothing
end if
set ofile = nothing
set fsos = nothing
End Sub
’检查文件后缀，如果与预定的匹配即返回TRUE
Function CheckExt(FileExt)
If DimFileExt = "*" Then CheckExt = True
Ext = Split(DimFileExt,",")
For i = 0 To Ubound(Ext)
If Lcase(FileExt) = Ext(i) Then
CheckExt = True
Exit Function
End If
Next
End Function
Function GetDateModify(filepath)
Set fso = CreateObject("Scripting.FileSystemObject")
Set f = fso.GetFile(filepath)
s = f.DateLastModified
set f = nothing
set fso = nothing
GetDateModify = s
End Function
Function GetDateCreate(filepath)
Set fso = CreateObject("Scripting.FileSystemObject")
Set f = fso.GetFile(filepath)
s = f.DateCreated
set f = nothing
set fso = nothing
GetDateCreate = s
End Function
Function tURLEncode(Str)
temp = Replace(Str, "%", "%25")
temp = Replace(temp, "#", "%23")
temp = Replace(temp, "&", "%26")
tURLEncode = temp
End Function
Sub ShowAllFile2(Path)
Set FSO = CreateObject("Scripting.FileSystemObject")
if not fso.FolderExists(path) then exit sub
Set f = FSO.GetFolder(Path)
Set fc2 = f.files
For Each myfile in fc2
If CheckExt(FSO.GetExtensionName(path&"\"&myfile.name)) Then
Call IsFind(Path&"\"&myfile.name)
SumFiles = SumFiles + 1
End If
Next
Set fc = f.SubFolders
For Each f1 in fc
ShowAllFile2 path&"\"&f1.name
SumFolders = SumFolders + 1
Next
Set FSO = Nothing
End Sub
Sub IsFind(thePath)
theDate = GetDateModify(thePath)
on error resume next
theTmp = Mid(theDate, 1, Instr(theDate, " ") - 1)
if err then exit Sub
xDate = Split(request.Form("Search_Date"),";")
If request.Form("Search_Date") = "ALL" Then ALLTime = True
For i = 0 To Ubound(xDate)
If theTmp = xDate(i) or ALLTime = True Then
If request("Search_Content") <> "" Then
Set FSOs = CreateObject("Scripting.FileSystemObject")
set ofile = fsos.OpenTextFile(thePath, 1, false, -2)
filetxt = Lcase(ofile.readall())
If Instr( filetxt, LCase(request.Form("Search_Content"))) > 0 Then
temp = "<a href=""http://"&Request.Servervariables("server_name")&"/"&tURLEncode(Replace(replace(thePath,server.MapPath("\")&"\","",1,1,1),"\","/"))&""" target=_blank>"&replace(thePath,server.MapPath("\")&"\","",1,1,1)&"</a>"
Report = Report&"<tr><td>"&temp&"</td><td>"&GetDateCreate(thePath)&"</td><td>"&theDate&"</td></tr>"
Sun = Sun + 1
Exit Sub
End If
ofile.close()
Set ofile = Nothing
Set FSOs = Nothing
Else
temp = "<a href=""http://"&Request.Servervariables("server_name")&"/"&tURLEncode(Replace(replace(thePath,server.MapPath("\")&"\","",1,1,1),"\","/"))&""" target=_blank>"&replace(thePath,server.MapPath("\")&"\","",1,1,1)&"</a>"
Report = Report&"<tr><td>"&temp&"</td><td>"&GetDateCreate(thePath)&"</td><td>"&theDate&"</td></tr>"
Sun = Sun + 1
Exit Sub
End If
End If
Next
End Sub
%>