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Bitdefender Endpoint Security Tools: Weird Firewall / Port Scanning Alerts. Any Help?

edited February 2023 in Enterprise Security

Helping a friend that uses Bitdefender Endpoint Security Tools for clients.

A PC on client's home network is getting firewall alerts about port scanning. I'm trying some things but lack info - can't log into the router at the house, etc.

This is the situation. Any ideas you can offer?

This win 10 pro PC gets messages similar to this 1 to several times a day. No pattern to the frequency although they come in spurts.

A port scan has been detected and blocked.Local IP: Remote IP: Protocol: UDP (17)

This PC is behind a Netgear router that does DHCP in the subnet. This machine is

I wanted to get into the router to see if this .30 IP is DHCP. but they don't have the password / I have to go there?

Over the last few days, the remote IP varies - it's been from, 28, 23, 20 and 19

And the local IP will be or (yeah, 239!?) or or (the IP of this PC).

Most times it's UDP. 1 x a day it's TCP (usually the last of the batch for the day.

Is there a way to print the event log?

When I connect to this pc and run a network scanner and try to ping that remote IP address, i don't get a reply. (so not on the network or just doesn't reply to pings).

Any thoughts?

Here's when the message comes up over the last few days:

Feb 10

1:46  UDP (17)

10:15  UDP (17)

Feb 9 

12:25  UDP (17)

9:10  UDP (17)

8:58  UDP (17)

7:49  UDP (17)

6:57  UDP (17)

Feb 8 

16:19  UDP (17)

14:52  UDP (17)

10:34  TCP (6)

10:17  UDP (17)

10:10  UDP (17)

9:57  UDP (17) 

5:08  UDP (17)

5:01  UDP (17)

4:39  UDP (17)

3:59  UDP (17)

3:42  UDP (17)

3:33  UDP (17)

Feb 7

7:50  UDP (17)

7:39  UDP (17)

7:30  UDP (17)

7:19  UDP (17)

Feb 6

17:47  UDP (17)  

3:25  TCP (6)

3:17  UDP (17)

2:51  UDP (17)

2:23  UDP (17)


  • Gjoksi


    Since you need help with business product, @Alex_Dr or @Andra_B (they both provide support for business products) could take a look here and help you with the issue.

    Also, you can always contact the Bitdefender business support:


  • Thanks. I'm helping out someone else / not my account. So I don't know details to call for support. And we're both running around / haven't had the chance to ask him if I could / should call support.

    And my experience, which doesn't include Bitdefender, is that unfortunately, vendor support in general isn't as good as users on the web : ) I might be pleasantly surprised with Bitdefender.

  • Alex_Dr
    Alex_Dr Quality & Customer Experience Specialist BD Staff

    Hello @AWilliams,

    I do apologize for the late reply.

    In this case i strongly recommend contacting the Bitdefender Enterprise Support team, details are in the below link, if you wish to contact via phone or e-mail:

    Contact (

    Best regards,

    Alex D.