Digital systems are at the heart of every business. From sending and receiving emails, to customers accessing your website, technology is crucial to business operations. However, as with all things valuable, there’s always a malicious actor out there looking to exploit it.
Imagine one day you come to work to find your website inaccessible, or your internal systems compromised. You discover a huge surge of artificial traffic is impacting systems and bringing your business to a standstill. What would you do? What CAN you do?
This is the reality of experiencing a DDoS attack.
This guide aims to equip you with all essential knowledge and tools necessary for protecting against these malicious attacks which can be hugely detrimental. We’ll equip you with effect methods to safeguard your organistion from the potential damages resulting from a DDoS attack and help maintain business continuity.
Understanding DDoS Attacks
DDoS, or distributed denial of service (DDoS), attacks are malicious attempts to disrupt normal operation and gain access to business data. This is done by flooding the targeted server with artificially generated traffic from compromised IP addresses located throughout the internet.
These types of attacks aim to overwhelm servers using excessive amounts of traffic in order for attackers to slow down or cease service of the target site.
A similar type of attack is a DOS attack denial-of-service attack, but there are distinct differences between the two.
A core distinction between a DoS attack and its DDoS counterpart lies within how much disruption takes place. DDoS involves multiple distinct IPs all bombarding at once, whereas traditional DoS happens via just one attacking point. This means DDoS attacks are more harmful than their DoS counterparts and therefore businesses which rely heavily on their websites uptime and e-commerce channels must consider a solution to defend against such attacks.
Different Types of DDoS Attacks
DDoS attacks can be split into three main classifications: volumetric, protocol-related, and application.
Volumetric assaults cause bottlenecking on a network by consuming available bandwidth between devices and the internet. For example, ICMP floods and UDP floods involve sending corrupted data packets to servers hosting applications that utilise UDP with false source IPs leading to high levels of response traffic coming in at once.
Protocol attacks take their toll on server or network assets via tactics like SYN flooding—which fills victims’ systems with requests prompting them to establish connections but never receive confirmation resulting in choked connections not being completed—and even targeting critical components such as the Internet Control Message Protocol needed for communication among machines over the net too may come under attack.
HTTP Floods (aka apps based) leverage exploits directed at web page generation & delivery through swarms of bogus HTTP queries exhausting resources within causing disruption/outages all while disguising themselves as legitimate traffic using valid URLs etc.
What Motivates People to Deploy DDoS Attacks
DDoS attacks can be driven by a range of motivations, including ideological, rivalry between businesses or simply cyber vandalism.
In some situations, hackers may even use the threat of an attack to extort money from their target. These types of attacks are sometimes used as part of more elaborate plans to draw attention away from security personnel while simultaneously exploiting known or zero-day vulnerabilities within your network. The effects of this can be devastating.
The dual pronged approach of using a DDoS attack to divert security resources whilst also undertaking other attacks is a common tactic utilised by many different malicious actors today who plan on hostilities far beyond just DDoS attacks.