This is infuriating that I continue to get this repeats of nine and more possible hack attempts from the same certain IP addresses blocked by Malwarebytes, which I get popups every time it happens. This is a snapshot from my logs after one has happened, and I also save text file logs of it.
From what I can tell, they appeared to be originating from Linode almost every time and when I tried to file complaints with them, they keep claiming it is a security researcher or something and end up doing nothing about it. I’m currently wondering what to do about this as I have a folder of so many save logs of it on my computer.
No, I don’t have any ports forwarded to my PC from the internet as far as I’m aware.
If they are making it past your firewall and hitting your computer then the firewall is open and it shouldn’t be. Or that’s an outbound connection triggering the alert.
Just clarification here, a NAT is NOT a firewall. It will drop packets originating from outside the network if the ports aren’t forwarded to an IP simply because the NAT has no idea which device on the network to send the packets to. A forwarded port is you telling the NAT to assume packets coming into a specific port should be forwarded to a specific device. It is acting as a security measure simply by coincidence but not by design. Unlike a firewall it will not inspect any packet payload or attempt to make a security decision on outbound packets. It only routes based on the packet headers.
A firewall on the other hand actively will reject or drop packets because it is an Intrusion Prevention System (IPS). This is why if your router has a built-in firewall, your NAT will still drop the packets – because it isn’t a firewall nor is it what is being referred to if you disable it.
It’s more like an inbound connection that is triggering the alert.
Well, I just went through some online instructions to setup an inbound rule in Windows Defender Firewall that is a list of IPs to have it block, hoping that will solve this ongoing problem I was having.
Hmm maybe these are outgoing traffic in that case, does it tell you the src/dst info?
Not that I can tell, this is what shows up in the logs of just one of the hack or scan attempts.
Malwarebytes www.malwarebytes.com
-Log Details- Protection Event Date: 1/2/24 Protection Event Time: 10:48 PM Log File: f150648e-a9ea-11ee-8d8b-04d4c458e8f6.json
-Software Information- Version: 4.6.7.301 Components Version: 1.0.2222 Update Package Version: 1.0.79191 License: Premium
-System Information- OS: Windows 10 (Build 19045.3803) CPU: x64 File System: NTFS User: System
-Blocked Website Details- Malicious Website: 1
-Website Data- Category: Compromised Domain: IP Address: 45.79.168.172 Port: 6667 Type: Inbound
A quick search shows that IP is known for hacking type requests https://www.abuseipdb.com/check/45.79.168.172
I would check how your router is setup, as they should not be hitting your computer at all.
Port 6667 is a typical IRC port. It is sometimes used by remote access backdoors for command and control via a channel (chat room basically) on an IRC server, however, if that port isn’t forward OR you don’t have your PC set as the DMZ Host (you should never do this), then you probably have malicious software on your system.
If it isn’t forwarded, then your NAT would drop the packets and Malwarebytes would never see it because they wouldn’t be there. Malicious software can forward ports via uPNP and you should turn that off on your router or router/modem combo. It can also make it through if the connection is starting from inside of your network for TCP, which is the protocol that would be used for 6667 normally.