Types of attacks In Network Security That Are Commonly found # 2021

Today’s caregiver is the internet, as many people rely on it for a variety of professional, social, and personal activities. It is essential for communication, data exchange, commercial transactions, and, in short, the whole trade and commerce industry.

But it comes with the attackers who execute various cyber attacks. A cyberattack is an offensive activity. Attackers target computer information systems, infrastructures, and networks. They steal, manipulate, and delete data in a variety of ways. Today, I’ll go through the top ten classes of attack that are commonly found in today’s network environment.

Denial-of-service (DoS)

A Denial of Service (DoS) threat is a critical one. It takes down the victim’s network or the whole IT  infrastructure. This causes the inaccessibility of the network to legitimate users. A huge number of other host PCs launch that contain malicious software. The attacker can acquire access to the victim’s system resources through a denial-of-service attack. A DoS attack can potentially knock a system down, allowing another type of assault to be conducted.

You can categorize Dos attack in three sections:

Connection flooding: The attacker slows down the target system by creating a huge number of TCP connections. Then they block the network by these bogus connections, making it unavailable to real users.

Vulnerability attack: It stops the service or makes it worse to the point where the host collapses. Attackers do this by delivering a few well-crafted messages to the targeted host.

Bandwidth flooding: By flooding the server with packets, the attacker stops genuine packets from reaching the server. The packets transmitted are big enough to stop the target’s link.

Distributed Denial of Service (DDoS)

It’s a more sophisticated variation of a Denial of Service (DoS) attack. This type of abuse is far more difficult to identify and fight against. To target a single DoS attack targeted system, the attacker leverages many hacked systems. DDoS attacks employ botnets also.

Access attacks

Unauthorized access an attacker gains access to a network without authorization. Due to weak passwords and insider threats, these kinds of attacks take place. You should also provide protection against social engineering to avoid hacking.

Virus

A virus cannot execute itself. In order to infect a computer and a network, it requires the user’s input. An email containing a malicious link or attachment is an example. The harmful code is launched when the receiver opens the attachment or clicks the link. Thus, attackers evade the system’s security protections and make it unusable. The user unwittingly corrupts the device in this situation.

Malware

The majority of malware is self-replicating. When malware infects a computer, it uses the internet to get access. The virus then infects all of the network’s computers that are linked to the internet. It can also infect a device connected to the internet. Malware attacks are far more rapid than other forms of malicious attacks.

Worm

A worm can infect a computer without the user’s knowledge. When a user uses a network application that is susceptible. The attacker can then deliver malware to that application using the same internet connection. The virus might be downloaded from the internet and executed by the program. Thus, it generates a worm.

Phishing

Phishing is one of the most popular network threats. It refers to sending emails that appear to come from well-known sources or lenders. Then there’s a sense of urgency to entice the user to take action. The email might contain a harmful link or attachment, or it might request sensitive information.

Botnet

It’s a collection of personal computers that are victims of harmful software. Without the owner’s awareness, the attacker has control over all of the machines on the network. Then an attacker instructs each computer in the network to infect a huge number of devices.

DNS Spoofing

It involves manipulating domain name system (DNS) data to exploit a machine. As a result, the name server returns an IP address that is wrong.

Man-in-the-middle

This kind of attack occurs when someone stands between the two peoples during a discussion. In a man-in-the-middle attack, the attacker may successfully manage your communication. For instance, when the network’s lowest layer delivers the information. The computer layer will be unable to identify the receiver.

Packet Sniffer

When a remote receiver is put in the wireless transmitter’s range, it records a copy of each packet sent. These packets may include sensitive information. When passing above it, a packet receiver will be able to receive it. After then, the packet receiver will act as a packet sniffer, sniffing any sent packets that reach the range. Cryptography is the best defense against packet sniffers.

IP Spoofing

The process of injecting packets into the internet using a bogus source address is known as IP spoofing. End-point authentication would help to protect against IP spoofing. This protection will ensure the validity of packets coming from the recognized location.

Compromised Key

Using a compromised key, an attacker gets unauthorized access to encrypted communication. A key is a secret number or code. The attackers use this key to decrypt encrypted data without informing the sender or receiver. When an attacker obtains a key. Then they easily use it to extract information.

SQL injection attack

With database-driven websites, SQL injection has become a widespread problem.

It occurs when a malefactor uses the input data from the client to the server to run a SQL query on the database. In order to perform predefined SQL instructions, SQL commands are placed into data-plane input.

This kind of injection exploit can access sensitive data from the database, edit it, and run administrator commands. It is very difficult to determine the vulnerability of this kind of attack. It is most effective when a website employs dynamic SQL. This attack is also quite popular in PHP and ASP apps. J2EE and ASP.NET apps have good programming interfaces so they are less vulnerable to attack.

Network security entails more than just upgrading computers on a regular basis and installing a trustworthy antivirus. An organization needs a competent Network Defender to guard and battle network threats.

 

 

Leave a Comment