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The Hacker News - Cybersecurity News and Analysis: Search results for DNS amplification

BitTorrent Fixes Reflective DDoS Attack Security Flaw

BitTorrent Fixes Reflective DDoS Attack Security Flaw

August 28, 2015Swati Khandelwal
Two weeks ago, we reported how a serious flaw in the popular peer-to-peer BitTorrent file sharing protocols could be exploited to carry out a devastating distributed denial of service (DDoS) attack, allowing lone hackers with limited resources to take down large websites. Good news is that the developers of BitTorrent have fixed the security issue in its service that is being used by hundreds of Millions of users worldwide. In a blog post published Thursday, BitTorrent announced that the flaw was resided in a reference implementation of the Micro Transport Protocol (uTP) called libuTP , which is used by many widely used BitTorrent clients such as μTorrent , Vuze and Mainline . The San Francisco company also announced that it has rolled out a patch for its libuTP software that will stop miscreants from abusing the p2p protocol to conduct Distributed Reflective Denial-of-Service (DRDoS) attacks. DRDoS attack is a more sophisticated form of conventional DDoS att
How to Exploit BitTorrent for Large-Scale DoS Attacks

How to Exploit BitTorrent for Large-Scale DoS Attacks

August 17, 2015Mohit Kumar
A flaw discovered in several widely used BitTorrent applications, including uTorrent, Vuze and Mainline , could be used to carry out a devastating distributed denial of service (DDoS) attack that makes it very easy for a single undetectable hacker to bring down large sites. A new research by Florian Adamsky of the City University London shows that open BitTorrent protocol can be exploited to carry out Distributed Reflective Denial of Service (DRDoS) attacks . The bitTorrent protocol is a file-sharing protocol used by Millions of active online users at any given point in the day to exchange files over the Internet. DRDoS attack is a more sophisticated form of conventional DDoS attack where open and misconfigured DNS (Domain Name System) can be used by anyone to launch high-bandwidth DDoS attacks on target websites. In a paper , titled " P2P File-Sharing in Hell: Exploiting BitTorrent Vulnerabilities to Launch Distributed Reflective DoS Attacks ," the resea
Over 20Gbps DDoS attacks Now Become Common for Hackers

Over 20Gbps DDoS attacks Now Become Common for Hackers

March 30, 2014Swati Khandelwal
The Distributed Denial of Service ( DDoS ) attack has become more sophisticated and complex and therefore has become one of the favorite weapon for the cyber criminals to temporarily suspend the services of any host connected to the Internet and till now nearly every big site had been a victim of this attack, from WordPress to online game websites. According to the new report released by a US based security solutions provider  Incapsula , DDOS activities have become threefold since the start of the year 2013, pointing the key source of trash traffic to be the remotely controlled " zombie army " that can be used to flood various websites by DDoS attacks and other malicious activities. The report site as " DDOS Threat Landscape ", explains that almost one in every three DDoS attacks is above 20Gbps and 81% of attacks feature multiple vector threats. The attackers are becoming more skillful at working around the network security and reusing their DDOS Botnets to attack multi
Microsoft Fended Off a Record 2.4 Tbps DDoS Attack Targeting Azure Customers

Microsoft Fended Off a Record 2.4 Tbps DDoS Attack Targeting Azure Customers

October 12, 2021Ravie Lakshmanan
Microsoft on Monday revealed that its Azure cloud platform mitigated a 2.4 Tbps distributed denial-of-service (DDoS) attack in the last week of August targeting an unnamed customer in Europe, surpassing a  2.3 Tbps attack  stopped by Amazon Web Services in February 2020. "This is 140 percent higher than  2020's 1 Tbps attack  and higher than any network volumetric event previously detected on Azure," Amir Dahan, senior program manager for Azure Networking,  said  in a post, calling it a " UDP reflection " lasting for about 10 minutes. Reflected amplification attacks are a type of denial of service attacks wherein a threat actor takes advantage of the connectionless nature of UDP protocol with spoofed requests so as to overwhelm a target server or network with a flood of packets, causing disruption or rendering the server and its surrounding infrastructure unavailable. The attack is said to have originated from a botnet of approximately 70,000 compromised d
THN Weekly RoundUp – 12 Hacking Stories You Don’t Want To Miss This Week

THN Weekly RoundUp – 12 Hacking Stories You Don't Want To Miss This Week

October 12, 2015Swati Khandelwal
Here we are with our weekly roundup, showcasing last week's top cyber security threats and challenges. Just in case you missed any of them (ICYMI), THN Weekly Round-Up helps you provide all important stories of last week in one shot. We advise you to read the full story (just click ' Read More ' because there's some valuable advice in it as well). Here's the list: 1. Facebook to Launch Its Own Satellite to Beam Free Internet Facebook has revealed its plans to launch a  $500 Million Satellite  by next year in an effort to provide free or cheap Internet access in the developing countries. The social network giant has teamed up with the French satellite provider  Eutelsat  Communications to  beam free Internet  access to several parts of countries in Sub-Saharan Africa. For detailed information on Facebook's Satellite Project –  Read more … 2. Angler Exploit Kit Campaign Generating $30 Million Took Down Researchers took down a large ran
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