One of the most common problems currently experienced is computer attackswhich are Internet-based and growing stronger. All this has generated great concern in all users who make use of the netsince this can generate inconveniences in your security and privacy.
And it is that these have become one of the biggest problems that currently exist for most of companies and people affecting everyone individuals alikeeither financial, educational institutions, companies, society, among others. Since due to these attacks all Users’ personal information may be seriously affected.
One of the easiest ways to answer each of these threats is knowing the enemy. That is why here we are going to teach you What are the different types of attacks that can originate from the network. To do this, follow in detail everything that we will explain in the post.
What is a computer attack and what is its objective?
All this can be defined as a deliberate exploitation of all computer systems in the world, placing a little more attention on all that they are independent networks and companies. Each one of these cyber attacks work under the use of malicious codes that allow alter the logic or data of the computer, Coming to compromise in this way all the private information that is contained in the machinethus causing theft of information, identities, banking, among other crimes.
Cyber threats can be developed either by an elite hacker team or by cybercriminals working on their own, but they all meet a same function and is to take advantage of any kind of unknown software glitch. In this way they can reach filaccess the personal information contained in the equipmentconsiderably affecting the infrastructure or just achieve create a base to carry out future attacks.
Each of these attacks is carried out by different groups, today the most dangerous are known as “Advanced Persistent Threats (APT)”, who has very high level skills to provide each of his attacks. They can also be found at hackers who are specialized to take advantage of any security error displayed by the system, especially in those machines that handle old operating systems or programs.
Therefore, the main objective of all this is to be able to commit fraud, steal information, access operating systems, destroy programs, cause serious damage to companies and institutions, violate web pagesamong many other crimes that can be carried out.
Finally, it should be mentioned that all these pirates are opportunisticthat is, they prefer attack those computers that do not have updates so that penetration into the system will be much easierthat really go to attack a more valuable target that you possibly have security measures very advanced and difficult to penetrate.
List of the main types of computer attacks that exist
when you want defeat an enemythe best way to do it is knowing him completely. That is why here we are going to show you what they are the main types of computer attacks that currently exist and that are affecting millions of users around the world.
These attacks are carried out on a daily basis, where millions of virtual thefts, scams, threats, among many other crimes. Previously these attacks were directed mainly at independent individuals, but nowadays a lot of companies and institutions are affected by them.
In accordance with this, here we show you a list of the main cyber attacks that exist:
Man in the middle
This type of attack, also known as MITM It is one of the most affecting users today. Their main function is to carry out various types of actions within users’ machines. This is how they are placed in a electronic transaction or operation in which it is being carried out between two individuals.
Its function is intercept said information and filter only that which may be of interest to steal it. In this way, the attacker achieves penetrate into the transaction and so can extract the data that is of interest to you. These attacks originate mainly when the user uses public WiFi networks that do not have any type of protection.
So some individuals use it as means of transport to originate their attacks. In addition, these attacks can be applied in different ways, either through the snooze function which enables intercept operations or through IP address spoofing. One way to try to stop these types of threats is with the help of the PKI technology. Among them are the following two methods:
S/MIME
S/MIME fulfills the function of be able to encrypt emails in transit or at rest, thus ensuring that only recipients can read it, preventing any pirate from intercept said information, even altering the message that is contained therein. Another advantage it offers S/MIME is that it allows digitally sign each email as a unique digital certificate for each of the recipients.
authentication certificate
be able to have all security tools is essential to be able to stop these types of attacks, taking into account that it is practically impossible to destroy them. This means that if what is certificate-based authentication both in computers and other devices used with the Internet, all these attacks can be stopped. Since said tool will make hackers have a much more complicated task to achieve when they want to infiltrate the system.
DoS attack
It can be said that this is one of the most common threats currently on the networkand it is that these denial of service attacks allow an attacker to prevent user legitimacy at the time of access information on the web. One of the most common actions of Two is when the attacker decides completely flood the information network.
Thus, when the individual enter a URL of a particular site, it will simply be sending a request to the web server to be able to enter said platform. In this case the server can only process so many requests at a time, in the event that the attacker overload the server with requests it will not be able to respond to said requestthus achieving a “Denial of Service” which does not allow access to the site.
Some of the symptoms that the machine presents when it is affected by this attacker are the following:
- unavailability of website What do you want to visit?
- Increase considerable in amounts of spam that is received
- Can’t access any website.
- Network performance becomes very slow, making it impossible access web portals or open files online.
Being clear about the symptoms, here we show you the different types of DoS attacks that exist and that can affect you at any time:
- Tear Drop Attack: In this case, send a series of packets to the host with overlapping field values and large payloads. The result of this is that the target fails to assemble the packages thus blocking the computer, until there is a need to restart everything.
- Smurf Attack: Here the pirate has the option of sending a large number of ICMP echo requests to IP address. All those requests have a fake origin address of the victim. In the event that the device routing delivers traffic to the bogus addressesmost of the IP addresses will send an ECHO response message. A multi-access broadcast network could respond to every packet, causing the target to be overwhelmed by all the messages thus causing the network to not function properly.
- Land Attack: Now the attacker takes care of deliver fake TCP SYN packets where the IP address of the target is completed in the fields of origin and destination. Once this counterfeit packet is received, the target tends to get confused and crashes. The best way to discover these attacks is with the help of antivirus.
- SYN Flood: It is responsible for sending a flood of TCP/SYN packets with spoofed senders addressall these packets are handled with connection requests, thus causing the server to generate a half open connection Through the sending TCP/SYN-ACK packets. Being a spoofed sender response never arrives.
- Jolt Two Attack: The pirate fragments the icmp packet making the target unable put it back togetheras a consequence of all this, the use of the CPU is increased, generating narrowing and bottlenecks.
PING of death or DDoS.
The PING of death is that the attacker sends an ICMP packet longer than 65,356 bytes. This generates transport a package that is too large for the operating system to handle, causing himself to freeze. Currently operating systems have been developed with the aim of detecting all this type of threats by itselfAlthough it is not always very effective.
One of the types of threats provided by DDoS is the following:
- Distributed Denial of Service DDoS: In this case the cybercriminal has the necessary skills to use a computer and from it to be able to perpetrate the attack on another computerthis is achieved by managing to take advantage of all security vulnerabilities on the victim’s computer, whether you have a OS obsolete or does not have updates up to date. Through this attack the pirate can take for complete control of the machine and take possession of all the data that are stored there.
There are different ways to avoid or prevent these DDoS attacks, thus keeping all your information protected, for this you can apply some of these recommendations:
- Block IP addresses that you do not use
- Use router filtering apps.
- Disable unnecessary network services.
- have a very good password policy.
- make use of the filter network.
- limits the amount of bandwidth of the network.
- Update the antivirus
port scan
It is currently one of the techniques most used by attackersand it is that it allows to discover which services are exposed to possible attacks, that is, those weaker or have less security and protection.
In general, all or the vast majority of computers are connected to one where many services run on well-known ports and others not so well-known. Therefore, a port scan is intended to allow the cybercriminal can detect which ports are available to carry out the attack. These…
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