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Denial of Service and Distributed Denial of Service Attack: Detection and Countermeasures
White Papers Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks are specific attacks that attempt to prevent legitimate users from accessing networks, servers, services or other resources. The impacts of DoS attacks are causing greater...
[June 20, 2009, 1:21]
Detection and Prevention of DNS Query PTR Record-Based Distributed Denial-of-Service Attack
White Papers The syslog messages of the topdomain DNS servers in Kumamoto University were statistically investigated when having receiving a large amount of DNS query packets like a Distributed Denial-of-Service (DDoS) attack.
[June 24, 2009, 16:02]
A BitTorrent-Driven Distributed Denial-of-Service Attack
White Papers This central point of control provides an opportunity for a file distributor to deploy a modified tracker to provide peers in a swarm with malicious coordination data, directing peer connection traffic toward an arbitrary target machine on an...
[October 14, 2008, 1:01]
DDoS Protection Service: Distributed Denial of Service (DDoS)
White Papers Since the early days of the Internet, "Denial-of-service" (DoS) attacks have been a fact of life. Usually, in this type of attack, an attempt is made to cause the attacked systems to crash by exploiting vulnerabilities in operating systems...
[October 2, 2009, 1:23]
Mitigating Distributed Denial of Service Attacks in Multiparty Applications in the Presence of Clock Drifts
White Papers A weak point in network-based applications is that they commonly open some known communication port(s), making themselves targets for Denial of Service (DoS) attacks. Acknowledgments, if lost, can cause a port to be open for a longer time and thus...
[October 2, 2009, 1:23]
A New IP Traceback System Against Distributed Denial-of-Service Attacks
White Papers On most Denial-of-Service (DoS) attacks, packets with spoofed source addresses are employed in order to disguise the true origin of the attacker. A defense strategy is to trace attack packets back to their actual source in order to make the...
[June 24, 2009, 16:02]
Two Europeans indicted for US cyberattacks
News Two Europeans, one of whom is English, have been indicted by a US federal grand jury in connection with a 2003 distributed denial-of-service attack that is the focus of a major FBI investigation. The two men, who are not in custody, were indicted...
[October 6, 2008, 13:23]
Georgian president suffers cyberattack
News The website of the Georgian president was the subject of a distributed-denial-of-service attack over the weekend. For over 24 hours the website of President Mikhail Saakashvili of Georgia.has been rendered unavailable due to a multi-pronged...
[July 21, 2008, 17:12]
Experts warn of multiple computer attacks
News A distributed denial of service attack forces a Web server or similar computer system offline by overwhelming it with fake traffic from many remotely controlled, or "zombie", computers. There have been numerous reports and warnings in recent weeks...
[October 4, 2000, 14:14]
New shield repelled internet backbone attack
News The distributed denial-of-service attack on the Domain Name System (DNS) proved the effectiveness of the Anycast load-balancing system, the Internet Corporation for Assigned Names and Numbers (ICANN) said in a document published on Thursday.
[March 12, 2007, 8:24]
Florida man charged in botnet attack on Akamai
News A Florida man has been charged with launching a distributed denial-of-service attack against servers run by Akamai Technologies. This distributed denial-of-service attack, launched 15 June, 2004, rendered many of Akamai's clients' websites...
[October 25, 2006, 16:40]
Seti's Boinc project hit by DDoS attack
News The University of California's distributed-computing project that searches for extraterrestrial intelligence (Seti) was temporarily knocked offline by a distributed denial of service (DDoS) attack last week.
[July 29, 2004, 10:10]
Explaining the Estonian cyberattacks
News A distributed denial-of-service, or DDoS, attack occurs when hundreds or thousands of compromised computers are enlisted. The event also marked the beginning of a large and sustained distributed denial-of-service attack on several Estonian national...
[May 30, 2007, 15:34]
Distributed attack threat looms on the horizon
News Malevolent computer crackers may be preparing the ground for distributed denial of service (DDoS) attacks that would pose a serious threat to major Web sites and to the infrastructure of the Internet.
[September 18, 2000, 9:52]
Remote Denial of Service Attacks and Countermeasures
White Papers The first major Distributed Denial of Service (DDoS) attack brought down the University of Minnesota's network for three days in August 1999. As evinced by a series of high profile attacks, Denial of Service (DoS), or prevention of legitimate...
[June 24, 2009, 16:02]
ISPs under strain from barrage of DDoS attacks
News As in the previous three reports, internet service providers (ISPs) reported attacks where their networks were overloaded with packets, in a distributed denial-of-service (DDoS) attack. Internet service providers now spend most of their IT security...
[November 12, 2008, 9:35]
Analyzing Interaction Between Distributed Denial of Service Attacks and Mitigation Technologies
White Papers Under sponsorship of the Defense Advanced Research Projects Agency's (DARPA) Fault Tolerant Networks (FTN) program, The Johns Hopkins University Applied Physics Laboratory (JHU/APL) has been conducting the Distributed Denial of Service Defense...
[June 24, 2009, 16:02]
How the cyber vandals zapped Yahoo!
News Known as "distributed coordinated attacks" the tactic is designed to defeat current defenses against denial of service attacks. A denial of service attack is a form of cyber attack that blocks Internet traffic from reaching a particular company or...
[February 8, 2000, 8:14]
Managed Public Key Infrastructure: Securing Your Business Applications
White Papers Distributed Denial of Service (DDoS) attacks are quite common on the Internet today. Recently there has been an increase in the number of attacks using a less common, but well known, technique known as Distributed Reflector Denial of Service (DRDoS...
[August 4, 2006, 1:00]
Experts warn of new-style cyber attack
News Known as "distributed co-ordinated attacks," this new style is particularly good at defeating present-day defenses against those intent on stopping Internet traffic to a particular company or Internet service -- a result known as denial of service.
[October 20, 1999, 10:45]
