Port 53 open on my computer
I ran a scan inside my LAN, and found that my computer has port 53 open. I checked and it receives inbound connections from my other device on the same LAN. Is this normal to have open?
Category Archives: ports
Is it possible to infect a monitor via HDMI plus Ethernet [duplicate]
I caught a virus because of an exe file I downloaded to my computer last week. I am replacing my modem, graphics card, motherboard, processor, ssd and ram components with new ones. What are the chances that my monitors are infected? My two… Continue reading Is it possible to infect a monitor via HDMI plus Ethernet [duplicate]
How to perform focused scan of public IP using nmap? [duplicate]
Scanning my router using the private IP address using nmap reveals the open ports:
Obtaining the public IP address of the router can be achieved by executing the command:
nslookup myip.opendns.com resolver1.opendns.com
If I scan my route… Continue reading How to perform focused scan of public IP using nmap? [duplicate]
Can you use Lynis to retrieve data on connected printers from the system logs? [closed]
I have found out that a strangers printer had been connected to my localhost:631. How do I use Lynis to retrieve any possible information about it’s interactions with my computer from system logs? Is it even possible?
Are there any other s… Continue reading Can you use Lynis to retrieve data on connected printers from the system logs? [closed]
Attack surface when no incoming port is open
Let’s assume that the only attack to be feared on a computer is one via the network in which the machine is embedded.
What options does an attacker have if the machine has no open incoming ports?
(For example: NMAP cannot find a service wi… Continue reading Attack surface when no incoming port is open
Attack surface when no incoming port is open
Let’s assume that the only attack to be feared on a computer is one via the network in which the machine is embedded.
What options does an attacker have if the machine has no open incoming ports?
(For example: NMAP cannot find a service wi… Continue reading Attack surface when no incoming port is open
Random High Ports – Firewall Config
I’m from a digital forensics background and it has been a while since I studied networking and so am a little rusty on a few aspects. I am looking to implement a remote forensics solution within an organisation and the vendor in question h… Continue reading Random High Ports – Firewall Config
Port scanning but Windows firewall isn’t logging the connection
We are seeing port scans coming from many of our company devices and scanning our internal network over the VPN. The events are not reproducible and are not regular.
Scans always follow the same pattern – ping, TCP 22,80,443,445 and UDP 65… Continue reading Port scanning but Windows firewall isn’t logging the connection
Auto-opening a reverse bash shell
Is it possible to use a tool like netcat to create a listener on the attacker’s device with a specific command that when the target device or machine connects to this IP and port, it runs a bash shell or command (/bin/bash) on the target d… Continue reading Auto-opening a reverse bash shell
NMAP same destination ip, different scanner interface, different result
I am trying to check the port status of a external IP using NMAP, I am getting different result on different interface to same destination (destination is a public IP).
When NMAP tried from the internal interface 10.204.59.166
localhost2:/… Continue reading NMAP same destination ip, different scanner interface, different result