Monitoring with PowerShell: Monitoring Domain Admins logon

So this is one I’ve been researching for a new tool I’m creating. AzPAM, AzPAM will be a Privledged Access Management tool that will be living in your Azure environment, mostly designed for MSPs. If you want to see how AzPam looks or contribute, check out the Github page about it here. I should be pretty close to releasing an alpha version soon! 🙂

To make sure AzPAM can also work with local accounts and domain admin accounts I figured I might try to monitor when the account has logged on. It then dawned on me that this might be something you’ll want to monitor in general. We’ve talked about monitoring new admins and groups before, but never directly if a Domain Admin has logged on.

The Script

So this script checks the lastloggedon time stamp in Active Directory, and checks if this account has logged on in the last 24 hours. You can exclude accounts by adding it to the $ExcludeList variable.

$ExludedAdmins = "JamesDoe", "JohnDoe"

$GroupMembers = Get-ADGroupMember -Identity 'Domain Admins'
$LoggedOntoday = foreach ($member in $GroupMembers) {
    if ($member.name -in $ExludedAdmins) {
        write-host "Skipping $($member.name)" -ForegroundColor Green
continue
}
$ADUser = Get-ADUser -Identity $member.sid -Properties 'LastLogonTimeStamp'
    if ($ADUser.lastlogontimestamp -eq $null) { continue }
    if ([datetime]::FromFileTime($ADUser.LastLogonTimeStamp) -gt (get-date).AddHours(-24)) {
"$($member.name) has logged on in the last 24 hours"
}

}

if (!$LoggedOntoday) { "Healthy. No Domain Admins have logged on today" }

And that’s it! I know it’s a bit of a short one, but with all the work I’m doing on AzPAM I’ll be sure to make it up to you guys soon! As always, Happy PowerShelling.

Recent Articles

The return of CyberDrain CTF

CyberDrain CTF returns! (and so do I!)

It’s been since september that I actually picked up a digital pen equivalent and wrote anything down. This was due to me being busy with life but also my side projects like CIPP. I’m trying to get back into the game of scripting and blogging about these scripts. There’s still so much to automate and so little time, right? ;)

Monitoring with PowerShell: Monitoring Acronis Backups

Intro

This is a monitoring script requested via Reddit, One of the reddit r/msp users wondered how they can monitor Acronis a little bit easier. I jumped on this because it happened pretty much at the same time that I was asked to speak at the Acronis CyberSummit so it kinda made sense to script this so I have something to demonstrate at my session there.

Monitoring with PowerShell: Monitoring VSS Snapshots

Intro

Wow! It’s been a while since I’ve blogged. I’ve just been so swamped with CIPP that I’ve just let the blogging go entirely. It’s a shame because I think out of all my hobbies it’s one I enjoy the most. It’s always nice helping others achieve their scripting target. I even got a couple of LinkedIn questions asking if I was done with blogging but I’m not. Writing always gives me some more piece of mind so I’ll try to catch up again. I know I’ve said that before but this time I’ll follow through. I’m sitting down right now and scheduling the release of 5 blogs in one go. No more whining and no more waiting.