surviving DDoS attacks
نویسنده
چکیده
ka n d u l a @ M IT. E D U C O N S I D E R T H E F O L L O W I N G S C E N A R I O : Alyssa Hacker subverts tens of thousands of machines by using a worm and then uses these zombies to mount a distributed denial of service attack on a Web server. Alyssa’s zombies do not launch a SYN flood or issue dummy packets that will only congest the Web server’s access link. Instead, the zombies fetch files or query search engine databases at the Web server. From the Web server’s perspective, these zombie requests look exactly like legitimate requests, so the server ends up spending a lot of its time serving the zombies, causing legitimate users to be denied service.
منابع مشابه
F-STONE: A Fast Real-Time DDOS Attack Detection Method Using an Improved Historical Memory Management
Distributed Denial of Service (DDoS) is a common attack in recent years that can deplete the bandwidth of victim nodes by flooding packets. Based on the type and quantity of traffic used for the attack and the exploited vulnerability of the target, DDoS attacks are grouped into three categories as Volumetric attacks, Protocol attacks and Application attacks. The volumetric attack, which the pro...
متن کاملSoftware-Defined Networking with DDoS Attacks in Cloud Computing
Although software-defined networking (SDN) brings numerous benefits by decoupling the control plane from the data plane, there is a contradictory relationship between SDN and distributed denial-of-service (DDoS) attacks. On one hand, the capabilities of SDN make it easy to detect and to react to DDoS attacks. On the other hand, the separation of the control plane from the data plane of SDN intr...
متن کاملDetecting DDoS Attacks Using Dispersible Traffic Matrix and Weighted Moving Average
Distributed Denial of Service (DDoS) attacks have become significant threats on Internet according to the development of network infrastructure and recent communication technology. There are various types of DDoS attacks with different characteristics. These differences have made very difficult to detect such attacks. Furthermore, the sophisticated the evolution of DDoS attacks techniques and t...
متن کاملTracking DDoS Attacks: Insights into the Business of Disrupting the Web
Known for a long time, Distributed Denial-of-Service (DDoS) attacks are still prevalent today and cause harm on the Internet on a daily basis. The main mechanism behind this kind of attacks is the use of so called botnets, i.e., networks of compromised machines under the control of an attacker. There are several different botnet families that focus on DDoS attacks and are even used to sell such...
متن کاملStudy of Recent DDoS Attacks and Defense Evaluation Approaches
Distributed Denial of Service (DDoS) attacks is virulent, relatively new type of attacks on the availability of Internet services and resources. DDoS attackers infiltrate large number of computers by exploiting software vulnerabilities, to set up DDoS attack networks. DDoS attacks pose an immense threat to the Internet, therefore some defense systems are required to defend these attacks. In thi...
متن کاملBotz-4-Sale: Surviving Organized DDoS Attacks That Mimic Flash Crowds (Awarded Best Student Paper)
Recent denial of service attacks are mounted by professionals using Botnets of tens of thousands of compromised machines. To circumvent detection, attackers are increasingly moving away from bandwidth floods to attacks that mimic the Web browsing behavior of a large number of clients, and target expensive higher-layer resources such as CPU, database and disk bandwidth. The resulting attacks are...
متن کامل