Well, let's conclude this section by learning the countermeasures.
It is important to learn how to mitigate cyber attacks by learning the countermeasures.
So in this lecture, we will see how countermeasures Trojan attacks and how we can prevent megadose,
like how we can stop an attacker from installing and backdoor and then virus and Romes countermeasures.
If you know the bomb and the virus difference, the only difference is that womb's are not self replicating.
Virus viruses are sort of replicating.
So without wasting much time, let us start Trojan countermeasures.
So avoid opening e-mail attachments received from unknown senders, then block unnecessary ports and
the host and the firewall avoid accepting programs transferred by instant messaging applications, harden
weak default configuration settings and disable unused functionality.
This what I said just a few seconds ago is known as security misconfiguration, this happens a lot of
time.
Generally, the administrator who has installed softwoods forgets it to configure it properly.
He or she ignores the fact that, you know, the administrator and no one will have password and all
those things.
But attackers are one step ahead.
Then the security professionals may always find a way to breach into the system.
So and security professional security expert should know each and every step of how Endako can think
to enter into your PC.
So that is why they always see security architects or security officers professional always need to
think from the perspective of an heckel.
Then the next step is to monitor the entire network traffic for Allport or encrypted traffic, then
avoid downloading and executing applications from untoasted sources.
I have been telling this since the start of the lecture.
I know, but it's really important that we download it from the official windows, then install patches
and security updates for the operating systems and applications, scan external USB devices and DVD
with antivirus software before using then the district permissions within the next top environment to
prevent malicious applications from being installed and reinforced with antivirus firewalls and ideas
like this.
How we can prevent hackers from placing back doors.
The most commercial antivirus products can automatically scan and detect backdoor programs before they
can cause damage.
So it is important that you install commercial programs.
Then you have to educate users not to install applications downloaded from untoasted Internet sites
and e-mail attachments, avoid untoasted software and ensure that every device is protected by a firewall.
Use the antivirus tools such as McAfee, Norten, etc., to detect and eliminate back doors.
I would like to tell you that when before I started studying for security, when I was in my school,
I was always fond of downloading free Microsoft Office.
And one day without telling my father I downloaded the free Microsoft Office would have activated it.
I was very sharp in computers and, you know, accessing all those data from the web.
I extracted the passwords I downloaded.
I was nine to 10, I guess.
I don't remember exactly.
It's been almost eight to nine years.
So and the moment I installed it and it was working perfectly fine and it activated our windows, the
latest version of Microsoft Office and every mom appearance, everyone was happy that I had done such
a great task.
And all my dad's work was on that PC in that in that piece on the software is all his photos, all our
family photos, all our documents, everything.
And after 15 days, exactly 15 days, the Microsoft Office started getting an Arab activist.
Otherwise you wouldn't be able to access any of the Microsoft files.
So, you know, and I thought it was just an error.
So I just shut down the windows and I restarted it for 10 to 15 times.
But that error still persisted.
And after that, my dad wasn't able to access a single file from Microsoft Office.
He tried, you know, downloading those files from one side to another week, but to no avail.
And unfortunately, he lost his entire data.
And I just cannot forget that incident.
And from that incident, I've always learned to download files only from legitimate source.
That is, I also tell my friends and my colleagues that please do not fall into the breach of free software.
There are there is nothing like free Microsoft Word because no one is able to actually download it at
some point of time or the other.
The application reverts back.
So again, me, you learn from my lesson.
I learned from experience that you should always download it from legitimate sources.
And then moving ahead, you have to deploy firewalls and Libyans, make sure you inspect the network
packets using protocol, monitoring tools, and then use antivirus tools such as McAfee and trusted
third party tools.
And last, this virus countermeasures.
So the most common is install antivirus software and update it regularly, generate antivirus policy
for safe browsing and computing, then schedule regular scans for all drivers after installation of
antivirus software regularly maintain data backup, which I a mistake, redetermined it in any backup.
Then stay informed about the latest virus threats.
Keep reading different blogs, security websites to get used to latest trends and technologies.
Then run this clean up and adjust to this kind of once a week.
Clean up the temporary files every day, run antivirus spyware, add once a week and do not accept disks
or programs without checking them first with your software.
So you know you should be able to tell your friends that please do not do this.
And being a security student, you should be able to protect other students data.
Then let us have a quick recap.
We discuss how to prevent a cyber threat.
We saw countermeasures for files ones and also saw how I used to deal with freedoms.
And finally, Girma strike back and I lost all of my data and then make sure you apply these countermeasures
in your real life.