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主题:[公告]V5.5/V6安全补丁发布公告 [收藏主题] 转到:  
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zxzthlxf 发表于:2009/9/16 10:24:00   | 显示全部帖子 查看该作者主题 楼主 
科汛在线考试系统(NET)
该方法比科汛系统的在线扫描的速度要快,因为是本地扫描,推荐使用
 
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zxzthlxf 发表于:2009/9/18 9:46:00   | 显示全部帖子 查看该作者主题 沙发 
被充一句,在线木马检测程序是找不到这种木马的,查找IIS日志方法:先查help.asp得出执行过help.asp;.jpg文件的所有IP地址,再利用查出的IP地址查出执行过的操作,浏览这些被操作过的文件是否存在200服务响应,如果有说明这些文件是存在的,打开所有系统文件和隐藏文件功能进行查找就一定可以找出后门木马!
 
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zxzthlxf 发表于:2009/9/16 10:48:00   | 显示全部帖子 查看该作者主题 藤椅 
科汛在线考试系统(NET)

关于如何替换被改写的代码段:请使用Ultraedit 14.0以上的版本,支持多行替换及正则表达式

在服务器上运行Ultraedit,选择搜索菜单下的在文件中替换

查找内容为:

(<script).*?(icxxw|icxx%77|i%63xxw|%69cxxw|ic%78xw|icx%78w).*?(\/script>)

替换内容为:空格

 

选下面的正则表达式,Perl规则,再选择网站目录,可进行批量替换!

 
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zxzthlxf 发表于:2009/9/16 10:23:00   | 显示全部帖子 查看该作者主题 板凳 
做在线知识付费 选科汛云开店
之后打开扫描保存到的HTML文件,查找那些被加密过的ASP文件,科汛系统USER目录下有个文件类似MISIC属于正常的!
 
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zxzthlxf 发表于:2009/9/16 10:21:00   | 显示全部帖子 查看该作者主题 报纸 
科汛在线考试系统(NET)

推荐一个扫描ASP木马的代码:


使用方法:点开始->运行


输入   cscript  X:\scan.vbs    网站的目录  x:\**.html


 


scan.vbs源文件:把下面所有内容复制保存为scan.vbs或其它文件


'-----------------------
'Scan ASP WebShell in vbs
'Author: lake2 (http://lake2.0x54.org)
'Date:   2006-12-16
'Version: 1.0
'-----------------------


DimFileExt = "asp,cer,asa,cdx"
Dim Report, Report2, Sun, SumFiles, SumFolders


Call ShowInfo()
If WScript.Arguments.Count = 2 Then
 Sun = 0
 SumFiles = 0
 SumFolders = 1
 If Right(WScript.Arguments.Item(0),1) = "\" Then
  thePath = Mid(WScript.Arguments.Item(0),1,Len(WScript.Arguments.Item(0))-1)
 Else
  thePath = WScript.Arguments.Item(0)
 End If
 Call CheckArg(thePath)
 WScript.Echo "开始扫描,请稍候……"
 WScript.Sleep(1000)
 StartTime = now()
 Call ShowAllFile(thePath)
 EndTime = now()
 WScript.Echo vbcrlf & "扫描完成!" & vbcrlf
 report2 = report2 & "<html><head><title>雷客图 ASP 站长安全助手vbs版扫描报告</title>"
 report2 = report2 & "<meta http-equiv=""Content-Type"" content=""text/html; charset=gb2312""></head>"
 report2 = report2 & "<body><b><font size=4>雷客图 ASP 站长安全助手vbs版扫描报告</font></b><br><br>"
 report2 = report2 & "<font size=2>开始时间:"&StartTime&"</font><br>"
 report2 = report2 & "<font size=2>结束时间:"&EndTime&"</font><br>"
 report2 = report2 & "<font size=2>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(<font color=""#FF0000"">红字</font>显示的为严重可疑)</font><br/>"
 report2 = report2 & "<table width=""100%"" border=""1"" bordercolor=""blue"" style=""padding:5px;line-height:170%;clear:both;font-size:12px;word-break:break-all"">"
 report2 = report2 & "<tr>"
 report2 = report2 & "<td width=""20%"">文件路径</td>"
 report2 = report2 & "<td width=""20%"">特征码</td>"
 report2 = report2 & "<td width=""40%"">描述</td>"
 report2 = report2 & "<td width=""20%"">创建/修改时间</td>"
 report2 = report2 & "</tr>"
 report2 = report2 & "<p>"
 report2 = report2 & report
 report2 = report2 & "</p>"
 report2 = report2 & "</table><hr><script src=http://www.0x54.org/announce.js></script>"
 report2 = report2 & "<div align=center>powered by <a href=""http://www.0x54.org"" target=_blank>0x54.org</a></div>"
 report2 = report2 & "</body></html>"
 Call WriteToFile()
Else
 Call ShowHelp()
End If


Sub ShowInfo()
 HelpStr = HelpStr & "==============================" & vbcrlf
 HelpStr = HelpStr & "=====  欢迎使用雷客图 ASP 站长安全助手vbs版  =====" & vbcrlf
 HelpStr = HelpStr & "=====       之    检查ASP木马                =====" & vbcrlf
 HelpStr = HelpStr & "=====           Author: lake2                =====" & vbcrlf
 HelpStr = HelpStr & "=====       Email:lake2@mail.csdn.net        =====" & vbcrlf
 HelpStr = HelpStr & "=====   欢迎访问 www.0x54.org 得到更多信息   =====" & vbcrlf
 HelpStr = HelpStr & "==============================" & vbcrlf
 HelpStr = HelpStr & vbcrlf
 WScript.Echo HelpStr
End Sub


Sub ShowHelp()
 HelpStr = HelpStr & "#用法: CScript Scan.vbs [扫描路径] [结果HTM文件路径]" & vbcrlf
 HelpStr = HelpStr & "#例子: CScript Scan.vbs d:\Web f:\my\report.html" & vbcrlf
 HelpStr = HelpStr & vbcrlf
 WScript.Echo HelpStr
End Sub


Sub CheckArg(arg)
 tmpPath = arg
 tmpPath2 = Left(WScript.Arguments.Item(1), InStrRev(WScript.Arguments.Item(1),"\")-1)
 Set objFSO = WScript.CreateObject ("Scripting.FileSystemObject")
 If Not objFSO.FolderExists(tmpPath2) Then
  WScript.Echo "Error:错误的路径“" & tmpPath2 & "”!"
  WScript.Quit
 ElseIf Not objFSO.FolderExists(tmpPath) Then
  WScript.Echo "Error:错误的路径“" & tmpPath & "”!"
  WScript.Quit 
 End If
 Set objFSO = Nothing
End Sub


'遍历处理path及其子目录所有文件
Sub ShowAllFile(Path)
 WScript.Echo "正在检查目录" & path
 Set FSO = CreateObject("Scripting.FileSystemObject")
 Set f = FSO.GetFolder(Path)
 Set fc2 = f.files
 For Each myfile in fc2
  If CheckExt(FSO.GetExtensionName(path&"\"&myfile.name)) Then
   'WScript.Echo "正在检查文件" & path&"\"&myfile.name
   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


'检测文件
Sub ScanFile(FilePath, InFile)
 If InFile <> "" Then
  Infiles = "<font color=red>该文件被"& InFile & "文件包含执行</font>"
 End If
 temp = FilePath
 On Error Resume Next
 Set tStream = WScript.CreateObject("ADODB.Stream")
 tStream.type = 1
 tStream.mode = 3
 tStream.open
 tStream.Position=0
 tStream.LoadFromFile FilePath
 If err Then Exit Sub end if
 tStream.type = 2
 tStream.charset = "GB2312"
 Do Until tStream.EOS
  filetxt = filetxt & LCase(replace(tStream.ReadText(102400), Chr(0), ""))
 Loop
 tStream.close()
 Set tStream = Nothing


 Set FSOs = WScript.CreateObject("Scripting.FileSystemObject") 
 if len(filetxt) >0 then
  '特征码检查
  filetxt = vbcrlf & filetxt
   '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,一般ASP文件是不会加密的</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
   'Check .(Open|Create)TextFile
   regEx.Pattern = "\.(Open|Create)TextFile\b"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>.Crea"&"teTextFile|.O"&"penTextFile</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 = "\.SaveT"&"oFile\b"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>.Sa"&"veToFile</td><td>使用了Stream或者JMail的SaveToFile函数写文件"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
    Sun = Sun + 1
   End If
   'Check .&Save|.&SaveAs
   regEx.Pattern = "\.Sa"&"ve(As)?\b"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>.Sa"&"ve或者.Sa"&"veAs</td><td>使用了Save或SaveAs函数写文件"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
    Sun = Sun + 1
   End If
   'Check set Server
   regEx.Pattern = "set\s*.*\s*=\s*server\s"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>Set xxx=Se"&"rver</td><td><font color=red>发现Set xxx=Ser" & jj & "ver,请管理员仔细检查是否调用.execute</font><br>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
    Sun = Sun + 1
   End If
   'Check Server.(Transfer|Ex&ecute)
   regEx.Pattern = "Server.(Ex"&"ecute|Transfer)([ \t]*|\()[^""]\)"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>Server.Ex"&"ecute</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
   'Check .Ru&n
   regEx.Pattern = "\.R"&"un\b"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>.Ru"&"n</td><td><font color=red>发现 WScript 的 Run 函数</font><br>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
    Sun = Sun + 1
   End If
   'Check .Exe&c
   regEx.Pattern = "\.Ex"&"ec\b"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>.Ex"&"ec</td><td><font color=red>发现 WScript 的 Exec 函数</font><br>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
    Sun = Sun + 1
   End If
   'Check .Shel&lExecute
   regEx.Pattern = "\.Shel"&"lExecute\b"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>.ShellE"&"xecute</td><td><font color=red>发现 Application 的 ShellExecute 函数</font><br>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
    Sun = Sun + 1
   End If
   'Check .&create
   regEx.Pattern = "\.Cre"&"ate\b"
   If regEx.Test(filetxt) Then
    Report = Report&"<tr><td>"&temp&"</td><td>.Crea"&"te</td><td>发现 Create 函数<br>"&infiles&"</td><td>"&GetDateCreate(filepath)&"<br>"&GetDateModify(filepath)&"</td></tr>"
    Sun = Sun + 1
   End If
   Set regEx = Nothing


  
  'Check include file not with "&'
  Set regEx = New RegExp
  regEx.IgnoreCase = True
  regEx.Global = True
  regEx.Pattern = "<!--\s*#include\s+(file|virtual)\s*=\s*.*-->"
  Set Matches = regEx.Execute(filetxt)
  For Each Match in Matches
   tFile = Replace(Trim(Mid(Match.Value, Instr(Match.Value, "=") + 1, Len(Match.Value) - Instr(Match.Value, "=") - 1)),"/","\")
   If Left(tFile, 1)="'" Then
    tFile = Mid(tFile, 2, InStr(2, tFile, "'", 1) - 2)
   ElseIf Left(tFile, 1)="""" Then
    tFile = Mid(tFile, 2, InStr(2, tFile, """", 1) - 2)
   Else
    tFile = Replace(tFile, Chr(9), " ")
    If InStr(tFile, " ") <> 0 Then
     tFile = Left(tFile, InStr( tFile, " ") - 1)
    Else
     tFile = Left(tFile, InStr( tFile, "-") - 1)
    End If
   End If
   If Not CheckExt(FSOs.GetExtensionName(tFile)) Then
    Call ScanFile( Mid(FilePath,1,InStrRev(FilePath,"\"))&tFile, FilePath)
    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, FilePath)
    SumFiles = SumFiles + 1
   End If
  Next
  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 , FilePath)
    SumFiles = SumFiles + 1
   End If
  Next
  Set Matches = Nothing
  Set regEx = Nothing


 end if
  set fsos = nothing


End Sub


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


Sub WriteToFile()
 Set FSO = CreateObject("Scripting.FileSystemObject")
 Set theFile = FSO.OpenTextFile(WScript.Arguments.Item(1), 2, True)
 theFile.Write(Report2)
 theFile.Close
 Set FSO = Nothing
 WScript.Echo "扫描结果已经写入文件“"&WScript.Arguments.Item(1)&"”,请查看之!"
End Sub

 
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