As attackers adopt more sophisticated and intricate techniques, denial of service (DDoS) attacks are becoming harder to detect and block, according to security firm Prolexic.
Prolexic said that as the stakes for DDoS increase, a more advanced class of knowledgable attackers has emerged capable of launching larger and more destructive attacks.
The company's latest quarterly threat report noted that attackers have begun moving away from the simpler 'script kiddie' attack techniques and in many cases are using different techniques, such as bouncing DNS traffic, to create larger volumes of data.
Stuart Scholly, president of Prolexic, told V3 that in addition to flooding servers with traffic, these attacks can also have unforeseen consequences even when protections are put into place.
"If you look at how attack size measures by some metrics there is tremendous growth," he said.
"Collateral damage gets done even if you have the bandwidth."
Overall, the company found that China is the top supplier of infected machines for botnets, followed by the USA and Germany. Iran and India round out the top five.
Though the countries themselves have a large number of infected systems, the controllers of the botnets cannot be so easily traced.
This task, said Scholly, is even further muddled by a growing 'rental' economy in which a botnet can be built by an attacker in one part of the world and then loaned out to various groups throughout the globe for short-term use.
The aim of DDoS attacks is also appearing to change. With the more sophisticated techniques, both state-sponsored and criminal enterprises seem to be gaining capacity for launching and sustaining DDoS attacks.
"At the end of the day people are going to exploit the technologies that get he job done and these techniques can be used for all types of objectives," said Scholly.
"It would make sense that everyone would gravitate towards tools of this nature."
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