There are some particular scans that you really need to be aware of if you are going to be a cybersecurity
specialist.
Let's talk about those now.
These can be for be performed by tools like and map, by the way, and they are frequently used by attackers.
If we're doing a TCP connect scan, this is also known as a full open scan.
This is the most robust intent scan and this is what would most likely be detected, caught and stopped.
So, yeah, attackers don't often have the luxury of performing a full open TCP connect scan, but when
they do, they are, as the language implies.
Here they are making full blown transmission control protocol connections with open ports.
Yikes.
Now a stealthier way to go is the stealth scan.
What the scanning is doing is it's not fully establishing the communications, the TCP session.
So it gets it started and then it abandons it and it will be timed out.
This, as you might guess, is a more stealthy way to go.
And oftentimes this can be used to circumvent, circumvent firewalls and other type attack protections.
An inverse TCP flag scan really looks to be the stealth ist here.
Things are done to test for open ports.
That'll be even tougher for a lot of security protocols to discover things.
Clever things will be done with the flags so that the software can determine if the TCP port is open
or not.
But again, it will do this without detection most often times.
So he plays games with the flag settings to determine if the port is open and really try and remain
undetected.
So you can see it's important to know about these different scanning techniques and they can be, you
know, completed successfully with ease thanks to powerful tools like end map and each ping.