Wednesday, August 17, 2011

使用程序分析IIS日志文件


不过,目前的日志分析工具并不是很完善,有些功能并不具备,特别是针对某个URL地址进行攻击的分析并不多,下面是一个VB Script程序,保存为VBS程序后可以在服务器上运行,用于分析和检测IIS日志里针对某个URL地址进行攻击的IP地址。
'代码开始
targeturl = "/archives/2761.html"  '受攻击网站的URL地址。
logfilepath = "C:\LogFiles\W3SVC\ex110813.log"  '受攻击网站的日志路径。
On Error Resume Next
Set fileobj = CreateObject("scripting.filesystemobject")
Set fileobj2 = CreateObject("scripting.filesystemobject")
Set myfile = fileobj2.opentextfile(logfilepath, 1, False)
 
Do While myfile.atendofstream <> True
myline = myfile.readline()
myline2 = Split(myline, " ")
newip = myline2(9)
myurl = myline2(5)
If targeturl = myurl Then
      writelog newip
End If
Loop
myfile.Close
Set fileobj2 = Nothing
Msgbox "结束."
Sub writelog(errmes)
ipfilename = "blockip.txt"
Set logfile = fileobj.opentextfile(ipfilename, 8, True)
logfile.writeline errmes
logfile.Close
Set logfile = Nothing
End Sub
'代码结束
 
IIS日志
分析出来的IP如果出现异常,可以通过程序,将其批量添加到IIS的屏蔽IP列表里,下面是网上找到的一段VBScript代码,将其改名为vbs后,把上面那段程序的IP导入,即可批量屏蔽攻击者的IP地址。
'代码开始
'/*=========================================================================
' * Intro VBScript使用ADSI为IIS批量添加屏蔽或允许访问的IP
' * FileName VBScript-ADSI-IIS-Add-Deny-Grant-IP-Change-MetaBase.xml.vbs
' *==========================================================================*/
'AddDenyIP2All "192.168.1.106,255.255.255.0"
'AddDenyIP "123456","127.0.0.1"
'AddDenyIP2All "14.113.226.116"
'添加要屏蔽的IP或一组计算机,到一个指定站点上
Sub AddDenyIP(strWebNo, strDenyIp)
On Error Resume Next
Set SecObj = GetObject("IIS://LocalHost/W3SVC/" & strWebNo & "/Root")
Set MyIPSec = SecObj.IPSecurity
MyIPSec.GrantByDefault = True
IPList = MyIPSec.IPDeny
i = UBound(IPList) + 1
ReDim Preserve IPList(i)
IPList(i) = strDenyIp
MyIPSec.IPDeny = IPList
SecObj.IPSecurity = MyIPSec
SecObj.Setinfo
End Sub
'添加要屏蔽的IP或一组计算机,到IIS公共配置,以应用到所有站点
'如果之前对有些站点单独做过屏蔽IP设置,在些设置不会生效,得在总的网站上设置一下,然后覆盖所有子结点
Sub AddDenyIP2All(strDenyIp)
On Error Resume Next
Set SecObj = GetObject("IIS://LocalHost/W3SVC")
Set MyIPSec = SecObj.IPSecurity
MyIPSec.GrantByDefault = True
IPList = MyIPSec.IPDeny
i = UBound(IPList) + 1
ReDim Preserve IPList(i)
IPList(i) = strDenyIp
MyIPSec.IPDeny = IPList
SecObj.IPSecurity = MyIPSec
SecObj.Setinfo
End Sub
'添加允许的IP或一组计算机,到一个指定站点上
Sub AddGrantIP(strWebNo, strGrantIp)
On Error Resume Next
Set SecObj = GetObject("IIS://LocalHost/W3SVC/" & strWebNo & "/Root")
Set MyIPSec = SecObj.IPSecurity
MyIPSec.GrantByDefault = False
IPList = MyIPSec.IPGrant
i = UBound(IPList) + 1
ReDim Preserve IPList(i)
IPList(i) = strGrantIp
MyIPSec.IPGrant = IPList
SecObj.IPSecurity = MyIPSec
SecObj.Setinfo
End Sub
'添加允许的IP或一组计算机,到IIS公共配置,以应用到所有站点
'如果之前对有些站点单独做过屏蔽IP设置,在些设置不会生效,得在总的网站上设置一下,然后覆盖所有子结点
Sub AddGrantIP2All(strGrantIp)
On Error Resume Next
Set SecObj = GetObject("IIS://LocalHost/W3SVC")
Set MyIPSec = SecObj.IPSecurity
MyIPSec.GrantByDefault = False
IPList = MyIPSec.IPGrant
i = UBound(IPList) + 1
ReDim Preserve IPList(i)
IPList(i) = strGrantIp
MyIPSec.IPGrant = IPList
SecObj.IPSecurity = MyIPSec
SecObj.Setinfo
End Sub
'显示IIS公共配置里禁止访问的IP
Sub ListDenyIP()
Set SecObj = GetObject("IIS://LocalHost/W3SVC")
Set MyIPSec = SecObj.IPSecurity
IPList = MyIPSec.IPDeny 'IPGrant/IPDeny
WScript.Echo Join(IPList, vbCrLf)
' For i = 0 To UBound(IPList)
' WScript.Echo i + 1 & "-->" & IPList(i)
' Next
End Sub

source:  http://www.williamlong.info/archives/2771.html