Botnet operators are changing their methods for conducting distributed denial of service (DDoS) attacks.
A customer study from security firm Prolexic found that over the last quarter, DDoS attacks used less bandwidth and took place over shorter durations of time. Additionally, botnet operators were more aggressive with the time they did spend, increasing packet-per-second volume by 63 per cent.
Researchers believe that the trend indicates a tendency for botnet operators to be more cautious with their attacks, conducting shorter operations in order to reduce the risk of detection and the possible loss of their networks.
"As perpetrators realise their DDoS attacks are being blocked by a mitigation provider, they are moving on to easier targets sooner than in the past," the company said in the report.
Despite being more cautious in their activity, botnet herders showed no sign of letting up. The study found that DDoS attacks were on the rise across all sectors of the business space. The report found that the total number of reported attacks had doubled over the same period in 2011.
The survey found that attacks on the routing and transport layers of infrastructure components accounted for 81 per cent of attacks, while application layer attacks were down on the quarter.
Prolexic researchers believe that the trend indicates a growth in the popularity of DDoS attacks and easier management and infection tools.
"This indicates the technical barrier to entry has been significantly lowered for malicious actors who seek to participate in denial of service attacks through improved accessibility to no-cost and simple, yet powerful tools," the company said.
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