Let’s see how to track who reset the password of the particular user account in Active Directory using domain controllers security logs.

You can track password reset events using audit policies. First of all, you need to enable the audit account management policies in your AD domain. To do it:

1. Open Group Policy Management (gpmc.msc) console and edit Default Domain Policy.
2. Then in the Group Policy Editor, go to Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Local Policies -> Audit Policy.
3. Find Audit User Account Management policy and enable it (if you want to log both successful and failed attempts of changing passwords, select Success and Failure).
   Note. You can enable this policy in the Advanced Audit Policy section as well (Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Advanced Audit Policy Configuration).

4. After applying the GPO on the clients, you can try to change the password of any AD user.
5. Then open the Event Viewer on your domain controller and go to Event Viewer -> Windows Logs -> Security. Right-click the log and select Filter Current Log.
6. In the filter parameters, specify that you only need to display events with the EventID 4724.
7. Only the events of successful password change will be left in the list. (An attempt was made to reset an account’s password.) In the information about the event you can see the administrator account who has changed the password (Subject:) and the name of the user account whose password has been reset (Target Account:).

You can get the information about this events from all Active Directory domain controllers using Get-ADComputer and Get-WinEvent PowerShell cmdlets:
(Get-ADComputer -SearchBase ‘OU=Domain Controllers,DC=woshub,DC=com’ -Filter *).Name | foreach {
Get-WinEvent -ComputerName $_ -FilterHashtable @{LogName="Security";ID=4724 }| Foreach {
$event = [xml]$_.ToXml()
if($event)
{
$Time = Get-Date $_.TimeCreated -UFormat "%Y-%d-%m %H:%M:%S"
$AdmUser = $event.Event.EventData.Data[4]."#text"
$User = $event.Event.EventData.Data[0]."#text"
$dc = $event.Event.System.computer
write-host “Admin ” $AdmUser “ resets password to ” $User “ on ” $dc “ “ $Time
}
}
}

If necessary, you can save this info directly from PowerShell to an external MySQL database using MySQL .NET Connector according to the similar script described in the article How to detect who deleted a file from Windows shared folder.