asp常见木马webshell扫描检测源码
<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>
<%
Const PASSWORD = "zhaoxi" '定义密码
Const removeIframe=true '是否检查iframe
Const IframeKey="3322" 'iframe 中的关键字，如果出现系统将自动清除
Const removeScript=true '是否检查script
Const ScriptKey="3322" 'script中的关键字，如果出现系统将自动清除
Const ScanFileType = "asp,cer,asa,cdx,htm,html"'检测文件类型
dim virus(1,7),virus_Regx(1,4)
'定义木马组件
virus(0,0)="WScript"
virus(1,0)="级别：<font color=""green"">严重!</font><br>WScript 多为木马关键字"
virus(0,1)="Shell"
virus(1,1)="级别：<font color=""green"">严重!</font><br>Shell 多为木马关键字"
virus(0,2)="Shell.Application"
virus(1,2)="级别：<font color=""green"">严重!</font><br>asp 组件,一般多为木马所用"
'海阳组件
virus(0,3)="clsid:72C24DD5-D70A-438B-8A42-98424B88AFB8"
virus(1,3)="级别：<font color=""green"">严重!</font><br>asp WScript 组件,一般多为木马所用"
virus(0,4)="clsid:F935DC22-1CF0-11D0-ADB9-00C04FD58A0B"
virus(1,4)="级别：<font color=""green"">严重!</font><br>asp wscript 组件,一般多为木马所用"
virus(0,5)="clsid:093FF999-1EA0-4079-9525-9614C3504B74"
virus(1,5)="级别：<font color=""green"">严重!</font><br>asp net 组件,一般多为木马所用"
virus(0,6)="clsid:F935DC26-1CF0-11D0-ADB9-00C04FD58A0B"
virus(1,6)="级别：<font color=""green"">严重!</font><br>asp net 组件,一般多为木马所用"
virus(0,7)="clsid:0D43FE01-F093-11CF-8940-00A0C9054228"
virus(1,7)="级别：<font color=""green"">严重!</font><br>asp fso 组件,一般多为木马所用"
'定义木马关键字
virus_Regx(0,0)="@\s*LANGUAGE\s*=\s*[""]?\s*(vbscript|jscript|javascript).encode\b"
virus_Regx(1,0)="级别：<font color=""green"">严重!</font><br>脚本被加密了，一般ASP文件是不会加密的。"
virus_Regx(0,1)="\bEval\b"
virus_Regx(1,1)="级别：<font color=""gray"">一般!</font><br>eval()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。"
virus_Regx(0,2)="[^.]\bExecute\b"
virus_Regx(1,2)="级别：<font color=""gray"">一般!</font><br>execute()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)。"
virus_Regx(0,3)="Server.(Execute|Transfer)([ \t]*|\()[^""]\)"
virus_Regx(1,3)="级别：<font color=""gray"">一般!</font><br>不能跟踪检查Server.e"&"xecute()函数执行的文件。请管
理员自行检查。"
virus_Regx(0,4)="CreateObject[ |\t]*\(.*\)$[^adodb.recordset]"
virus_Regx(1,4)="级别：<font color=""gray"">一般!</font><br>Crea"&"teObject函数使用了变形技术，仔细复查"
server.ScriptTimeout =90000
dim act
act=request.QueryString("act")
if act="login" then
if request.Form("pwd") = PASSWORD then session("login")="ok"
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>朝夕Asp木马检测器</title>
<script language="JavaScript" type="text/JavaScript">
function ConfirmDel()
{
if(confirm("确认删除？并且不能恢复！"))
return true;
else
return false;
}
</script>
</head>
<body>
<div align="center"><h2>朝夕Asp木马检测器</h2><br><a href="http://www.zhaoxi.net" target="_blank">访问朝夕官方网
站</a></div>
<hr>
<%
If Session("login") <> "ok" then
call LoginForm()
else
dim pathStr
if request("path")<>"" then
pathStr=request("path")
else
pathStr=server.MapPath("/")
end if
response.Write("<a href=""javascript:history.back();"">←返回</a><br>"&Chr(10))
if act="scan" then
dim Suspect,ScanFileNum,ScanFolderNum,BeginTime,EndTime,TmpPath,Report
Suspect = 0
ScanFileNum = 0
ScanFolderNum =0
BeginTime = timer
response.Write("<textarea name=""textarea"" style=""width:100%"" rows=""15"">"&Chr(10))
response.Write("检测日志："&vbcrlf)
if(request.QueryString("file")<>"") then
Call ScanFile(request.QueryString("file"),"")
else
Call ScanFolder(pathStr)
end if
response.Write("</textarea>")
Call ShowResult()
EndTime = timer
response.write "<br><font size=""2"">执行时间："&cstr(int(((EndTime-BeginTime)*10000 )+0.5)/10)
&"毫秒</font>"
elseif act="del" then
Call DelFile(request.QueryString("file"))
response.Write("<br><a href="""&request.ServerVariables("HTTP_REFERER")&""">返回</a>")
elseif act="down" then
Call Download(request.QueryString("file"))
else
call FileList(pathStr)
call ScanForm()
end if
end if
%>
<hr>
</body>
</html>
<%
Sub LoginForm
%>
<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>
<%
end Sub
Sub ScanForm
%>
<form action="?act=scan" method="post">
<input type="submit" value=" 全站检测 " style="background:#fff;border:1px solid #999;padding:2px 2px 0px
2px;margin:4px;border-width:1px 3px 1px 3px" />
</form>
<%
end sub
'遍历处理path及其子目录所有文件
Sub FileList(Path)
Set FSO = CreateObject("Scripting.FileSystemObject")
if not fso.FolderExists(path) then exit sub
Set folders = FSO.GetFolder(Path)'目录下所有对象
Set files = folders.files
Set subfolders = folders.SubFolders
'列表文件夹
For Each fl in subfolders
response.Write("<a href=""?path="&Path&"\"&fl.name&""">+"&fl.name&"</a>"&Chr(10))
response.Write("<a href=""?act=scan&path="&Path&"\"&fl.name&""">检测</a><br>"&Chr(10))
Next
'列表文件
For Each file_f in files
response.Write(" "&file_f.name&""&Chr(10))
response.Write("<a href=""?act=scan&file="&Path&"\"&file_f.name&""">检测</a><br>"&Chr(10))
Next
set folders=nothing
set files=nothing
set subfolders=nothing
Set FSO = Nothing
End Sub
Sub ShowResult
%>
<table width="100%" border="0" cellpadding="0" cellspacing="0" class="CContent">
<tr>
<td class="CPanel" style="padding:5px;line-height:170%;clear:both;font-size:12px">
检测完毕！一共检查文件夹<font color="#FF0000"><%=ScanFolderNum%></font>个，文件<font color="#FF0000"><%
=ScanFileNum%></font>个，发现可疑点<font color="#FF0000"><%=Suspect%></font>个
</td></tr></table>
<table width="100%" border="0" cellpadding="0" cellspacing="1" style="padding:5px; background-
color:#666666;line-height:18px;clear:both;font-size:12px">
<tr>
<td width="30%" bgcolor="#FFFFFF">文件名称</td>
<td width="20%" bgcolor="#FFFFFF">特征码</td>
<td width="30%" bgcolor="#FFFFFF">描述</td>
<td width="20%" bgcolor="#FFFFFF">创建/修改时间</td>
</tr>
<p>
<%=Report%>
<br/>
</p>
</table>
<%
end Sub
'遍历处理path及其子目录所有文件
Sub ScanFolder(Path)
dim folders,files,subfolders
ScanFolderNum = ScanFolderNum + 1
Set FSO = CreateObject("Scripting.FileSystemObject")
if not fso.FolderExists(path) then exit sub
Set folders = FSO.GetFolder(Path)
Set files = folders.files
For Each myfile in files
If CheckExt(FSO.GetExtensionName(path&"\"&myfile.name)) Then
Call ScanFile(Path&"\"&myfile.name, "")
End If
Next
Set subfolders = folders.SubFolders
For Each f1 in subfolders
ScanFolder path&"\"&f1.name
Next
set folders=nothing
set files=nothing
set subfolders=nothing
Set FSO = Nothing
End Sub
'检测文件
Sub ScanFile(FilePath, InFile)
dim FSOs,ofile,filetxt,fileUri,vi
ScanFileNum = ScanFileNum + 1
response.Write("检测文件:"&FilePath&vbcrlf)
response.Flush()
If InFile <> "" Then
Infiles = "该文件被<a href=""http://"&Request.Servervariables("server_name")&"\"&InFile&"""
target=_blank>"& InFile & "</a>文件包含执行"
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
fileUri = "<a href=""http://"&Request.Servervariables("server_name")
&":"&Request.ServerVariables("SERVER_PORT")&"\"&replace(FilePath,server.MapPath("\")&"\","",1,1,1)&"""
target=_blank>"&replace(FilePath,server.MapPath("\")&"\","",1,1,1)&"</a><br>"
fileUri=fileUri&"操作： <a href=""?act=del&file="&FilePath&""" onClick=""return ConfirmDel
()"">删除</a>"
fileUri=fileUri&" <a href=""?act=down&file="&FilePath&""">下载</a>"
for vi=0 to ubound(virus,2)
If instr(filetxt, Lcase(virus(0,vi))) then
Report = Report&"<tr bgcolor=""#FFFFFF""><td>"&fileUri&"</td><td>"&virus(0,vi)
&"</td><td>"&virus(1,vi)&infiles&"</td><td>创建:"&GetDateCreate(filepath)&"<br>修改:"&GetDateModify(filepath)
&"</td></tr>"
Suspect = Suspect + 1
End if
next
for vi=0 to ubound(virus_Regx,2)
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = virus_Regx(0,vi)
If regEx.Test(filetxt) Then
Report = Report&"<tr bgcolor=""#FFFFFF""><td>"&fileUri&"</td><td>"&virus_Regx
(0,vi)&"</td><td>"&virus_Regx(1,vi)&infiles&"</td><td>创建:"&GetDateCreate(filepath)&"<br>修改:"&GetDateModify
(filepath)&"</td></tr>"
Suspect = Suspect + 1
End If
next
'移除iframe
if(removeIframe=true) then
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = "<iframe.*</iframe>"
Set Matches = regEx.Execute(filetxt)
For Each Match in Matches
iframeStr =Match.Value
response.Write(Chr(10)&"发现iframe:"&iframeStr&Chr(10))
if(instr(iframeStr,IframeKey)) then
response.Write(Chr(10)&"找到关键字:"&iframeStr&Chr(10))
filetxt=replace(filetxt,iframeStr,"")
'写入
Set file_w = fsos.CreateTextFile(FilePath,true)
file_w.WriteLine(filetxt)
file_w.close
set file_w=nothing
end if
Next
Set Matches = Nothing
Set regEx = Nothing
end if
'移除script
if(removeScript=true) then
Set regEx = New RegExp
regEx.IgnoreCase = True
regEx.Global = True
regEx.Pattern = "<script.*</script>"
Set Matches = regEx.Execute(filetxt)
For Each Match in Matches
scriptStr =Match.Value
response.Write(Chr(10)&"发现script:"&scriptStr&Chr(10))
if(instr(scriptStr,ScriptKey)) then
response.Write(Chr(10)&"找到关键字:"&scriptStr&Chr(10))
filetxt=replace(filetxt,scriptStr,"")
'写入
Set file_w = fsos.CreateTextFile(FilePath,true)
file_w.WriteLine(filetxt)
file_w.close
set file_w=nothing
end if
Next
Set Matches = Nothing
Set regEx = Nothing
end if
'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) )
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) )
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 ScanFileType = "*" Then CheckExt = True
Ext = Split(ScanFileType,",")
For i = 0 To Ubound(Ext)
If Lcase(FileExt) = Ext(i) Then
CheckExt = True
Exit Function
End If
Next
End Function
'删除文件
Sub DelFile(FilePath)
Set fso = Server.CreateObject("Scripting.FileSystemObject")
if fso.FileExists(FilePath) then
fso.DeleteFile(FilePath)
Response.Write("<h2>成功删除文件:</h2>" &FilePath)
else
response.Write("<h2>删除失败!文件:"&FilePath&"没有找到!</2>")
end if
set fso=nothing
end Sub
'下载文件
sub Download(FilePath)
dim oStream
Set FSO = Server.CreateObject("Scripting.FileSystemObject")
if FSO.FileExists(FilePath) then
set oStream=Server.CreateObject("ADODB.Stream")
oStream.Type=1
oStream.Open
on error resume next
oStream.LoadFromFile(FilePath)
if Err.Number=0 then
Response.AddHeader "Content-Disposition", "attachment; filename=" & FSO.GetFileName
(FilePath)
Response.AddHeader "Content-Length", oStream.Size
Response.ContentType="bad/type" 'yeu cau ie hien hop thoai save-as
Response.BinaryWrite oStream.Read
end if
oStream.Close
set oStream=nothing
end if
set FSO=nothing
end sub
Function GetDateModify(filepath)
dim s,days
Set fso = CreateObject("Scripting.FileSystemObject")
Set f = fso.GetFile(filepath)
s = f.DateLastModified
set f = nothing
set fso = nothing
days=DateDiff("d",Cdate(s),now())
if(days>-7 and days<7) then
s="<font color=""red"">"&s&"</font>"
end if
GetDateModify = s
End Function
Function GetDateCreate(filepath)
dim s,days
Set fso = CreateObject("Scripting.FileSystemObject")
Set f = fso.GetFile(filepath)
s = f.DateCreated
set f = nothing
set fso = nothing
days=DateDiff("d",Cdate(s),now())
if(days>-7 and days<7) then
s="<font color=""red"">"&s&"</font>"
end if
GetDateCreate = s
End Function
%>
