一般来说,在部署了微软活动目录的企业域环境中,为了安全起见,不会将用户的密码设置为永不过期,通常设置为60天到90天更改一次,相对比较安全。在密码快要过期的时候,用户登录 Windows 时会有提醒修改密码。不过,也会有很多员工根本不去看这个提示甚至忽略掉,一旦员工域帐号的密码过期时间是在公众假期甚至是外地出差期间,那么结果就是包含邮件在内的相关应用系统无法登陆。随之给域管理员的工作带来压力。有各种各样的方法可以减少此种事件发生,一些第三方工具甚至可以开放给员工自助的密码忘记/重设服务,我们这里不做探讨。

今天要给大家分享的两个脚本,一个通过 VBscript 找出密码快要过期的用户,另外一个使用 PowerShell 给这些用户发送密码过期提醒邮件,通过设置计划任务部署脚本后已经在某企业稳定运行七年时间,经统计可以减少域管理员密码重设次数60%以上,不失为一种简单高效的方案。

PasswordCheck.vbs

'############################ PasswordCheck.vbs ################################
' Author: Randy Zhong
' Source: https://github.com/randyzhong/
' Description: This script use VBScript to check user's password expiration date.
' If Lastdate equals 7,5,3,2,1, DisplayName,Email,LastDate,Runtime
' will be recorded to OutFile in CSV format.
' Version: 1.0.0
'#################################################################################
' Changelog:
' 2011.05.11 v1.0.0 - initial release
' Const VARIABLES - DON'T EDIT
On Error Resume Next
Const ADS_SCOPE_SUBTREE = 2
Const SEC_IN_DAY = 86400
Const ADS_UF_DONT_EXPIRE_PASSWD = &h10000
Const ForWriting = 2
Const E_ADS_Property_Not_Found = &h8000500D
Const E_Table_Not_Found = &h80040E37
Const NanoSEC_IN_DAY = 864E9
Const TristateTrue = -1
' IMPORTANT VARIABLES TO EDIT
LDAPDomain = "LDAP://OU=FABRIKAM Users,DC=Fabrikam,DC=com"
BiosDomain = "FABRIKAM"
OutFile = "C:\PwdCheck\passexpired.csv"
' END OF IMPOTANT VARIABLES TO EDIT
' BEGIN OF CODE - DON'T EDIT
Set objDomainNT = GetObject("WinNT://" & BiosDomain)
intMaxPwdAge = objDomainNT.Get("MaxPasswordAge")
If intMaxPwdAge < 0 Then
WScript.Echo("Password never expired!")
WScript.Quit
Else
intMaxPwdAge = (intMaxPwdAge/SEC_IN_DAY)
End If
Set fso = CreateObject("Scripting.FileSystemObject")
Set objConnection = CreateObject("ADODB.Connection")
Set objCommand = CreateObject("ADODB.Command")
objConnection.Provider = "ADsDSOObject"
objConnection.Open "Active Directory Provider"
Set objCommand.ActiveConnection = objConnection
objCommand.CommandText = _
"Select DisplayName,Mail,userAccountControl,pwdLastSet from '" & LDAPDomain & _
"' where objectClass = 'user' and objectClass <> 'computer'"
objCommand.Properties("Page Size") = 100000
objCommand.Properties("Searchscope") = ADS_SCOPE_SUBTREE
Set objRecordSet = objCommand.Execute
IF err.number = E_Table_Not_Found Then
WScript.Echo("Error Domain!")
WScript.Quit
End If
objRecordSet.MoveFirst
Set txtStreamOut = fso.OpenTextFile(OutFile,ForWriting,true,TristateTrue)
txtStreamOut.WriteLine "DisplayName,Email,LastDate,Runtime"
Do Until objRecordSet.EOF
AccountName = objRecordSet("DisplayName")
EmailAddress = objRecordSet("Mail")
AccountControl = objRecordSet("userAccountControl")
pwdLastSet = objRecordSet("pwdLastSet")
pwdLastSet = #1/1/1601# + (pwdLastSet.highpart * 2^32 + pwdLastSet.lowpart) / NanoSEC_IN_DAY + 480 / 1440
If (AccountControl And ADS_UF_DONT_EXPIRE_PASSWD)=0 Then
if (AccountControl and 3) <> 2 and err.number <> E_ADS_Property_Not_Found Then
Lastdate = int(intMaxPwdAge-(now-pwdLastSet))
if Lastdate = 7 or Lastdate = 5 or (Lastdate < 4 and Lastdate > 0) then
txtStreamOut.WriteLine AccountName & "," & EmailAddress & "," & Lastdate & "," & Now
End If
End If
End If
Err.number = 0
objRecordSet.MoveNext
Loop
'WScript.Echo("Finished")
' End OF CODE

Sendmail-PassExpired.ps1

######################## Sendmail-PassExpired.ps1 #############################
# Author: Randy Zhong
# Source: https://github.com/randyzhong/
# Description: This script uses Send-MailMessage cmdlet to send HTML format
# message with high priority.
# Version: 1.0.0
#################################################################################
# Changelog:
# 2011.05.11 v1.0.0 - initial release
# Define VARIABLES
$csvfile = "C:\PwdCheck\passexpired.csv"
$smtp = "mail.fabrikam.com"
$from = "Support@fabrikam.com"
$subject = "Warning: Your password is about to expire!"
# Read user email address from CSV file and send warning message with high priority
Import-Csv $csvfile | ForEach-Object {Send-MailMessage -To $_.Email -Subject $subject -From $from -BodyAsHtm -Body ("<font color='#1F497D'; font-family='Calibri, Tahoma, Arial'>"+"Dear&nbsp;" + $_.DisplayName +":" + "<br />" +"<p><font size='4'>Your password will be expired in <font color='red' size='+2'><strong>"+ $_.LastDate + "</strong></font> day(s), please change it soon.</font></p>") -SmtpServer $smtp -Encoding ([System.Text.Encoding]::UTF8) -Priority high}

计划任务设置

  • 新建个计划任务,设置为每天运行一次
  • 第一步运行 PasswordCheck.vbs 生成用户列表,Program/Script 输入 CScript, 参数输入 “C:\Pathname\PasswordCheck.vbs”
  • 第二步运行 Sendmail-PassExpired.ps1 发送邮件,Program/Script 输入 C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe, 附加参数 -command “. ‘C:\PwdCheck\Sendmail-PassExpired.ps1’”

Exchange 服务器设置

HUB 角色上面把配置了计划任务的服务器 IP 加入允许匿名转发的连接器 IP 地址池