A DDoS attack permits hackers to overload a server or network with fake traffic. A lot of traffic can overload the system and interrupts connectivity, preventing the system from processing legitimate requests from users. Services cease to function and the business is left with a long downtime, loss of revenues, and unhappy customers.
This article provides a guideline on how businesses can avoid DDoS attacks and remain a step ahead of hackers who might attempt to attack. These tips can help reduce the effect of the DDoS and will ensure speedy recovery after an attack.
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What Is a DDoS Attack?
An DDoS (Distributed Denial of Service) is an attack that is designed to disrupt the system, network, and server through flooding it by generating fake connections. The sudden increase in the number of messages, connection requests or packets overloads the system’s infrastructure, causing the system to slow or even crash.
Although some hackers employ DDoS attack to force company to pay an amount of ransom (similar to ransomware) The most popular motives behind the use of DDoS are:
- Interrupt services as well as communications.
- Doing damage to brands.
- Profit from a competitive advantage when your competitor’s website is down.
- Distract the team that responds to incidents.
DDoS attacks pose danger for businesses of all sizes and range including Fortune 500 companies to small online retailers. According to statistics, DDoS hackers typically are targeting:
- Online stores.
- Service providers for IT.
- Fintech and financial companies.
- Government entities.
- Gaming and online gaming companies.
Botnets are typically used by attackers to trigger an DDoS. Botnets are a system of malware-infected computers mobile devices as well as IoT devices that are under the attacker’s control. Hackers make use of this “zombie” machines to make large numbers of requests to the target server’s IP address or website’s URL.
After the botnet has sent out enough requests, the online services (emails websites, email web apps etc.) are unable to function or slow down. According to the Radware report that these are the most common lengths of the DDoS attack:
- 33% of users have services unavailable for an entire hour.
- 60% of the time is less than a whole day.
- 15% is available for a month.
Although the attack of a DDoS generally isn’t the cause of leakage or data breaches The victim has to spend time and money to get services restore. Business losses and abandoned shopping carts angry customers and reputational damage are the usual results of failing to protect against DDoS attacks.
Types of DDoS Attacks
Although the majority of DDoS attacks are designe to overload the system with excessive activity, hackers have a variety of tactics they employ to trigger the distribute denial of services.
The three major kinds of attacks are:
- Application-layer attacks.
- Protocol attacks.
- Volumetric attacks.
The three strategies depend on different methods however, an expert hacker is able to employ all three strategies to take down any single targeted.
Application-Layer Attacks
A malicious application layer attack targets and disables an application and not the entire network. Hackers generate a large quantity of HTTP requests that drain the server’s capacity to respond.
Cybersecurity experts evaluate app layer attacks using request per second (RPS). The common targets for these attacks are:
- Web-based apps.
- Internet-connected apps.
- Cloud services.
The task of preventing DDoS attempts of this kind is a challenge as security experts frequently struggle to differentiate among legitimate and fraudulent HTTP requests. These attacks consume less resource than the other DDoS tactics and some hackers make use of one device to manage an attack that is application-layer.
Another term that is used to describe an application-level DDoS is an attack on layer 7.
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