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: 255.255.255.255. Remote IP: 192.168.1.30. Protocol: UDP (17)
This PC is behind a Netgear router that does DHCP in the 192.168.1.0/24 subnet. This machine is 192.168.1.6
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 192.168.1.30, 28, 23, 20 and 19
And the local IP will be 255.255.255.255 or 239.255.255.255.250 (yeah, 239!?) or 192.168.1.255 or 192.168.1.6 (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
1:46 255.255.255.255 192.168.1.30 UDP (17)
10:15 255.255.255.255 192.168.1.30 UDP (17)
Feb 9
12:25 192.168.1.255 192.168.1.30 UDP (17)
9:10 255.255.255.255 192.168.1.30 UDP (17)
8:58 255.255.255.255 192.168.1.30 UDP (17)
7:49 255.255.255.255 192.168.1.30 UDP (17)
6:57 255.255.255.255 192.168.1.30 UDP (17)
Feb 8
16:19 255.255.255.255 192.168.1.28 UDP (17)
14:52 255.255.255.255 192.168.1.28 UDP (17)
10:34 192.168.1.6 192.168.1.28 TCP (6)
10:17 255.255.255.250 192.168.1.28 UDP (17)
10:10 255.255.255.255 192.168.1.28 UDP (17)
9:57 255.255.255.255 192.168.1.28 UDP (17)
5:08 255.255.255.255 192.168.1.28 UDP (17)
5:01 255.255.255.255 192.168.1.28 UDP (17)
4:39 255.255.255.255 192.168.1.28 UDP (17)
3:59 255.255.255.255 192.168.1.28 UDP (17)
3:42 255.255.255.255 192.168.1.28 UDP (17)
3:33 255.255.255.255 192.168.1.28 UDP (17)
Feb 7
7:50 255.255.255.255 192.168.1.23 UDP (17)
7:39 255.255.255.255 192.168.1.23 UDP (17)
7:30 255.255.255.255 192.168.1.23 UDP (17)
7:19 192.168.1.255 192.168.1.23 UDP (17)
Feb 6
17:47 239.255.255.250 192.168.1.20 UDP (17)
3:25 192.168.1.6 192.168.1.19 TCP (6)
3:17 239.255.255.250 192.168.1.19 UDP (17)
2:51 239.255.255.250 192.168.1.19 UDP (17)
2:23 255.255.255.250 192.168.1.19 UDP (17)