windows-server-2008 – 防止Microsoft FTP服务器(IIS6 / 7)中的暴力攻击

以下也是Chrissy Lemaire’s script

'****************************************************************************
' This script created by Chrissy LeMaire (clemaire@gmail.com)
' Website: http://netnerds.net/
'
' NO WARRANTIES,etc.
'
' This script instantly bans IP addresses trying to login to FTP
' using the NT account "Administrator"
'
' Run this script on the FTP server. It sits in the back and waits for an 
' event viewer "push" that lets it kNow someone Failed FTP authentication.
'
' This script has only been tested on Windows Server 2003. It assumes,as it 
' should,that there are no legitimate Administrator account FTP logins.
'
' "What it does"
' 1. Sets an Async Event Sink to notify the script when someone fails MS-FTP auth
' 2. When alerted,the script parses the last day's FTP logs for all FTP sites (this
'    is because the Event Viewer doesn't tell you which FTP site,if you have more than
'    one,is the one getting hit)
' 3. Compiles the list of IPs to be banned and then bans them using IIS /and/
'    IP level banning (thanks Spencer @ netortech.com for the idea)
'*****************************************************************************

' Push Event Viewer Alert
    Set objWMIService = Getobject("winmgmts:{(security)}!root/cimv2")
    Set eventSink = wscript.CreateObject("WbemScripting.SWbemSink","EVSINK_")
    strWQL = "Select * from __InstanceCreationEvent where TargetInstance isa  'Win32_NTLogEvent' and TargetInstance.sourceName = 'MSFTPSVC' and TargetInstance.EventCode = 100"
    objWMIService.ExecNotificationQueryAsync eventSink,strWQL

' Keep it going forever
While (True)
    Wscript.Sleep(1000)
Wend

Sub EVSINK_OnObjectReady(objObject,objAsyncContext)
  If InStr(LCase(objObject.TargetInstance.Message),"administrator") > 0 Then 
    Set objFTPSVC = Getobject("IIS://localhost/MSFTPSVC")
    Set WshShell = CreateObject("WScript.Shell")
    Set objFSO = CreateObject("Scripting.FileSystemObject")
    Set objLog = CreateObject("MSWC.IISLog")
    Set objdictionary = CreateObject("Scripting.Dictionary")
    Set objFTPIPSec = objFTPSVC.IPSecurity

    'Get IP address of server so we can use it later to give the offending IP a bad route
    Set IPConfigSet = Getobject("winmgmts:\\.\root\cimv2").ExecQuery("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled=TRUE")
    for each IPConfig in IPConfigSet
      if Not IsNull(IPConfig.DefaultIPGateway) then serverIP =  IPConfig.IPAddress(0)
    Next
    Set IPConfigSet = nothing

    'Iterate through each FTP site. See #2 up above.
      For Each objSITE in objFTPSVC
        If lcase(objSITE.class) = "iisftpserver" Then
          ftpLogFilePath =  WshShell.ExpandEnvironmentStrings(objSITE.LogFileDirectory) & "\msftpsvc" & objSITE.Name

          Set objFolder = objFSO.GetFolder(ftpLogFilePath)
            Set objFiles = objFolder.Files
              For Each fileName In objFiles
                lastFile = fileName
              Next
            strLogFile = lastFile
            Set file = nothing
          Set objFolder = nothing

          'Use the IIS log file parser provided by MSFT
          objLog.OpenLogFile strLogFile,1,"MSFTPSVC",0 
            '(FileName,IOMode,ServiceName,ServiceInstance,OutputLogFileFormat) 
            ' 0 = NotApplicable,1 = ForReading  
            While NOT objLog.AtEndOfLog
              objLog.ReadLogRecord
              If LCase(objLog.URIstem) = "administrator" Then
                ClientIP = objLog.ClientIP
                  If objdictionary.Exists(ClientIP) = False Then
                      'Kill the route to the machine then add it to the array of banned IPs.
                      Set WshShell = WScript.CreateObject("WScript.Shell")
                    WshShell.Run "ROUTE ADD " & clientIP & " MASK 255.255.255.255 " & serverIP,True
                    Set WshShell = nothing
                    objdictionary.Add ClientIP,"255.255.255.255" '255 is just there for padding.
                  End If 
              End If
            Wend  
          objLog.CloseLogFiles 1
        End If
      Next

      'Append the newly banned IPs to the currently banned IPs  
      If objdictionary.Count > 0 And objFTPIPSec.GrantByDefault = True Then 
        bannedIPArray = objFTPIPSec.IPDeny
          For i = 0 to ubound(bannedIPArray)
          clientIP = Left(bannedIPArray(i),InStr(bannedIPArray(i),",")-1)
            If objdictionary.Exists(ClientIP) = False Then
              objdictionary.Add bannedIPArray(i),"255.255.255.255"
            End If 
          Next

        objFTPIPSec.IPDeny = objdictionary.Keys
        objFTPSVC.IPSecurity = objFTPIPSec
        objFTPSVC.SetInfo
      End If

    Set objFTPIPSec = nothing
    Set objdictionary = nothing
    Set objLog = nothing
    Set objFSO = nothing
    Set objFTPSVC = nothing
  End If
  End Sub