Understanding DDoS diagram attacks & effective web protection

DDoS stands for Distributed Denial of Service which means distributed denial of service. Hacker DDoS attacks take place by using traffic from multiple sources to disrupt the traffic of a targeted server, service, or network. At the same time, this traffic will take up most of your server's bandwidth, leading to the exhaustion of the server's resources and disrupting the access of real users.

DDoS attacks are performed against a network of internet-connected machines. These networks include computers and other devices (such as IoT devices) infected with malware, allowing attackers to control them remotely.

A DDoS attack will take many different forms, here is the most common DDoS diagram attack on Web Servers today. Botnets are installed on many computers, located in those computers just waiting for the command from the leader of the Botnet DDoS attack (Bot Herder) to attack the specified target. A Botnet system from 1000 to several tens of thousands of computers and is called a "Bots network" to refer to a network of computers that are infected with Bot.

The botnets automatically clone the number of devices through many different channels. Infection routes include exploiting website vulnerabilities, and malware, and cracking weak authentication keys to gain remote access.

Once access is gained, all of these infection methods lead to the installation of malware on the target device, allowing the botnet operator to control it remotely. Once a device is infected, a hacker can self-deliver botnet malware using other hardware devices in the surrounding network.

Currently, many DDoS attack tools are born with many different attack methods. Some modern DDoS tools like LOIC were first developed to serve scientific research and check the security of websites. Besides, there are still a few other DDoS attack tools developed by hackers with the aim of crashing the web, stealing information, etc., causing great damage to businesses.

Here are some of the most commonly used tools:

HOIC (High Orbit Ion Cannon): Is a platform that provides website security testing features. Used by people who intend to attack a server. With this application, you can perform distributed denial of service (DoS) and distributed denial of service (DDoS) attacks.

LOIC (Low Orbit Ion Cannon): This is a tool developed by Praetox Technologies to check the safety of websites. Hackers use LOIC to flood target systems with TCP, UDP, and HTTP GET requests and crash corporate websites.

Hping3: Is a network tool that can send ICMP/UDP/TCP packets and display destination responses just like Ping does with ICMP replies. Using Hping3, you can check firewalls, perform rogue port scans, test network performance in various ways.

Slowloris: used to build a DDoS attack. The Slowloris attack tries to keep maximum cohesion with those opened, this is achieved by sending a partial request.

DDoS attacks are becoming more and more sophisticated and dangerous with many different forms such as SYN Flood, UDP Flood, HTTP Flood, Ping of Death, Smurf Attack, Fraggle Attack, Slowloris, NTP Amplification,… The most destructive Web DDoS methods are the application layer DDoS attacks (Layer 7) such as HTTP GET and Advanced persistent Dos (APDos).

HTTP GET: Is a form of attack on application layers on small scale but targeting many targets. The goal of the HTTP GET attack is to target applications that have many weaknesses, especially layer 7 in the OSI model instead of Layer 3, because this is the layer with the highest network traffic. This type of attack often uses standard URLs instead of corrupted files or large files, so it is relatively difficult to resist.

Advanced Persistent Dos (ApDos): Is an extremely complex and serious form of attack because it is a combination of all other attack forms such as HTTP Flood or SYN Flood, etc. this form causes more serious damage. This attack is extremely large and dangerous because it can last for weeks or months, provided that the hacker must be able to change tactics and constantly avoiding network security systems.

Currently, the Cloud WAF firewall is the first choice for businesses in ensuring network security because of its high efficiency, speed, and convenience. Cloud WAF can detect and prevent DDoS attacks by monitoring anomalous traffic and blocking their access.

In addition, a web firewall is also known as a Layer 7 (application layer) protection protocol while ISP providers only support Layer 3 and Layer 4 protection making your website a target. hacker attack.

With the combination of the power of the Web Application Firewall and the Multi CDN and AI artificial intelligence technology, translation Website security service - VNIS of VNETWORK will help businesses get a comprehensive website protection solution on a cloud platform, improve blocking performance thoroughly attack web vulnerabilities, DDoS attacks, Botnet, Crawler and other potential external threats.

Website security solution VNIS owns a Cloud WAF firewall system in 8 countries around the world to help fight the biggest Layer 3/4/7 DDoS attacks. At the same time, VNIS also provides a CDN (Content Delivery Network) data transmission network with a network of more than 280 PoPs spanning 32 countries around the globe, in Vietnam alone, the system meets more than 3 million users. concurrent access and 6 billion requests per day. Together with the Security Operations Center (SOC - Security Operation Center) 24/7 monitoring to promptly detect and prevent attacks, helping the website to always be protected safely and maintain its operation effectively.

Therefore, VNIS is currently evaluated as a comprehensive website security solution and is trusted by more than 2000 domestic and foreign customers in fields such as Education, Health, Entertainment, Journalism, and Commerce. , Logistics, Finance, and Information Technology.

For advice, to learn more information, as well as experience the WAF firewall service, you can leave your contact information below or call our hotline: (028) 7306 8789.