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Cloudflare on Tuesday disclosed that it had acted to prevent a record-setting 26 million request per second (RPS) distributed denial-of-service (DDoS) attack last week, making it the largest HTTPS DDoS attack detected to date. The web performance and security company said the attack was directed against an unnamed customer website using its Free plan and emanated from a "powerful" botnet of 5,067 devices, with each node generating approximately 5,200 RPS at peak. The botnet is said to have created a flood of more than 212 million HTTPS requests within less than 30 seconds from over 1,500 networks in 121 countries, including Indonesia, the U.S., Brazil, Russia, and India. Roughly 3% of the attack came through Tor nodes. The attack "originated mostly from Cloud Service Providers as opposed to Residential Internet Service Providers, indicating the use of hijacked virtual machines and powerful servers to generate the attack — as opposed to much weaker Internet of Things

It should be the busiest day of the year for your business, but your website has just disappeared off the Internet and orders have dried up. If this happens to you, then you likely just become yet another victim of a distributed denial of service (DDoS) attack . By now, everyone who uses the Internet has come across DDoS attacks . It is one of the oldest attack technologies on the web, and a popular way of paralyzing the huge data centers. Just yesterday we have reported about a massive 100Gbps DDoS attack that hit World's 3rd Largest Chinese Bitcoin exchange for 9 hours. Arbor Networks, a leading provider of DDoS and advanced threat protection solutions, today released data on global distributed denial of service (DDoS) attack trends for the first three quarters of 2013, revealed that this kind of attack still represents a serious menace for IT security communities.  The document provides an interesting overview into Internet traffic patterns and threat evolutio

The introduction of Open AI's ChatGPT was a defining moment for the software industry, touching off a GenAI race with its November 2022 release. SaaS vendors are now rushing to upgrade tools with enhanced productivity capabilities that are driven by generative AI. Among a wide range of uses, GenAI tools make it easier for developers to build software, assist sales teams in mundane email writing, help marketers produce unique content at low cost, and enable teams and creatives to brainstorm new ideas.  Recent significant GenAI product launches include Microsoft 365 Copilot, GitHub Copilot, and Salesforce Einstein GPT. Notably, these GenAI tools from leading SaaS providers are paid enhancements, a clear sign that no SaaS provider will want to miss out on cashing in on the GenAI transformation. Google will soon launch its SGE "Search Generative Experience" platform for premium AI-generated summaries rather than a list of websites.  At this pace, it's just a matter of a short time befo

Github – a popular coding website used by programmers to collaborate on software development – was hit by a large-scale distributed denial of service (DDoS) attack for more than 24 hours late Thursday night. It seems like when users from outside countries visit different websites on the Internet that serve advertisements and tracking code from Chinese Internet giant Baidu , the assailants on Chinese border quietly inject malicious JavaScript code into the pages of those websites. The code instructs browsers of visitors to those websites to rapidly connect to GitHub.com every two seconds in a way that visitors couldn't smell, creating "an extremely large amount of traffic," according to a researcher who goes by the name A nthr@x . "A certain device at the border of China's inner network and the Internet has hijacked the HTTP connections went into China, replaced some JavaScript files from Baidu with malicious ones," A nthr@x wrote at Insight La

Three new security vulnerabilities have been discovered in Azure HDInsight's Apache  Hadoop ,  Kafka , and  Spark  services that could be exploited to achieve privilege escalation and a regular expression denial-of-service ( ReDoS ) condition. "The new vulnerabilities affect any authenticated user of Azure HDInsight services such as Apache Ambari and Apache Oozie," Orca security researcher Lidor Ben Shitrit  said  in a technical report shared with The Hacker News. The list of flaws is as follows - CVE-2023-36419  (CVSS score: 8.8) - Azure HDInsight Apache Oozie Workflow Scheduler XML External Entity (XXE) Injection Elevation of Privilege Vulnerability CVE-2023-38156  (CVSS score: 7.2) - Azure HDInsight Apache Ambari Java Database Connectivity (JDBC) Injection Elevation of Privilege Vulnerability Azure HDInsight Apache Oozie Regular Expression Denial-of-Service (ReDoS) Vulnerability (no CVE) The two privilege escalation flaws could be exploited by an authenticate

Anonymous vs Britain's Home Office - Operation Trial At Home As announced during last days Anonymous has launched a Distributed Denial of Service (DDoS) against several UK government websites. A massive recruiting campaign is started on social media, a call to arm to protest the extradition of U.K. citizens to the United States. The Operation named " Operation Trial At Home ," fight the European Arrest Warrant (EAW) that could lead to the extradition of three accused criminals by the U.K.'s Home Office, the government department responsible for domestic security. Anonymous has provided Home Office's IP address in its announcement to the supporters, Scheduling for April 7 the a DDoS ( with denial-of-service) attacks against the Home Office's website. During the week I wrote and article on the intent of the famous group of hacktivist and on the possible reasons of the action. The attacks have mainly two motives: to protest against the extradition of Gary McKinnon, Christopher H

Russian threat actors capitalized on the  ongoing conflict  against Ukraine to distribute Android malware camouflaged as an app for pro-Ukrainian hacktivists to launch distributed denial-of-service (DDoS) attacks against Russian sites. Google Threat Analysis Group (TAG) attributed the malware to Turla, an advanced persistent threat also known as Krypton, Venomous Bear, Waterbug, and Uroburos, and linked to Russia's Federal Security Service (FSB). "This is the first known instance of Turla distributing Android-related malware," TAG researcher Billy Leonard  said . "The apps were not distributed through the Google Play Store, but hosted on a domain controlled by the actor and disseminated via links on third party messaging services." It's worth noting that the  onslaught  of  cyberattacks  in the immediate aftermath of Russia's unprovoked invasion of Ukraine prompted the latter to  form an IT Army  to stage counter-DDoS attacks against Russian website

A network of compromised Linux servers has grown so powerful that it can blow large websites off the Internet by launching crippling Distributed Denial-of-service (DDoS ) attacks of over 150 gigabits per second (Gbps). The distributed denial-of-service network, dubbed XOR DDoS Botnet , targets over 20 websites per day , according to an advisory published by content delivery firm Akamai Technologies. Over 90 percent of the XOR DDoS targets are located in Asia, and the most frequent targets are the gaming sector and educational institutions. XOR creator is supposed to be from China, citing the fact that the IP addresses of all Command and Control (C&C) servers of XOR are located in Asia, where most of the infected Linux machines also reside. How XOR DDoS Botnet infects Linux System? Unlike other DDoS botnets , the XOR DDoS botnet infects Linux machines via embedded devices such as network routers and then brute forces a machine's SSH service to gain ro

#OpUSA campaign is officially started, the day has come, today May 7 as announced by Anonymous , a coordinated online attack will hit Banking and government websites. The announcement made by popular group of hacktivists is creating great concerns between US security experts in charge of defense the potential targets. The message passed sent by Anonymous to US authorities is eloquent, " We Will Wipe You Off the Cyber Map "  A new wave of attacks, presumably distributed-denial-of-service attack , is expected to hit principal US financial institutions exactly as already happened in the last months. The hacktivists participating to OpUSA campaign protest against the policy of the US Government blamed to have committed war crimes in foreign states and in its countries. "A nonymous will make sure that's this May 7 will be a day to remember. On that day anonymous will start phase one of operation USA. America you have committed multiple war crimes in Iraq, Afg

What would it take for hackers to significantly disrupt the US' 911 emergency call system? It only takes 6,000 Smartphones. Yes, you heard it right! According to new research published last week, a malicious attacker can leverage a botnet of infected smartphone devices located throughout the country to knock the 911 service offline in an entire state, and possibly the whole United States, for days. The attacker would only need 6,000 infected smartphones to launch automated Distributed Denial of Service (DDoS) attacks against 911 service in an entire state by placing simultaneous calls from the botnet devices to the emergency numbers. However, as little as 200,000 infected mobile phones could knock the 911 emergency call system offline across the entire US. Where does the Problem Lies? Researchers from Ben-Gurion University of the Negev's Cyber-Security Research Center say the problem is in the fact that current US Federal Communications Commission (FCC) regula

In 2013, we have seen a significant increase in the use of a specific distributed denial of service (DDoS) methodology known as Distributed Reflection Denial of Service attacks (DrDoS). Open and misconfigured DNS (Domain Name System) can be used by anyone to resolve domain names to IP addresses are increasingly abused to launch powerful DDoS attacks. But not only the DNS servers, Security Researchers at Symantec  have spotted Network Time Protocol (NTP) reflection DDoS attacks being launched by cyber criminals during the Christmas Holidays. ' Network Time Protocol (NTP) ' is a distributed network clock time synchronization protocol that is used to synchronize computer clock times in a network of computers and runs over port 123 UDP. NTP is one of those set-it-and-forget-it protocols that is configured once and most network administrators don't worry about it after that. Unfortunately, that means it is also not a service that is upgraded often, leaving it vulnerable to th

If you think that the HTTP/2 protocol is more secure than the standard HTTP ( Hypertext Transfer Protocol ), then you might be wrong, as it took researchers just four months to discover four flaws in the HTTP/2 protocol. HTTP/2 was launched properly just in May last year after Google bundled its SPDY project into HTTP/2 in February in an effort to speed up the loading of web pages as well as the browsing experience of the online users. Now, security researchers from data center security vendor Imperva today at Black Hat conference revealed details on at least four high-profile vulnerabilities in HTTP/2 – a major revision of the HTTP network protocol that the today's web is based on. The vulnerabilities allow attackers to slow web servers by flooding them with innocent looking messages that carry a payload of gigabytes of data, putting the servers into infinite loops and even causing them to crash. The HTTP/2 protocol can be divided into three layers: The transmissio

Over 2011-2012 we've seen an increase in distributed denial-of-service (DDoS) attacks and other web attacks on SME's websites. Incapsula is one of the companies whose service is useful to protect your website from all threats and mitigate DDoS attacks which affect your websites, servers, databases, and other essential infrastructure. Incapsula is a cloud-based website security and performance service, including a PCI-certified cloud web application firewall and a content delivery network (CDN) for small and medium-sized businesses. We at ' The Hacker News ' got the chance to review the service using an Enterprise plan account. Really it takes I think 1-2 minutes to join the service and add this extra layer of virtual shield around your Website. You have to make a simple DNS settings change in your domain panel. Your site traffic is then routed through Incapsula's global network of high-powered servers. Incoming traffic is analyzed and a security layer is a

At least 300,000 IP addresses associated with MikroTik devices have been found vulnerable to multiple remotely exploitable security vulnerabilities that have since been patched by the popular supplier of routers and wireless ISP devices. The most affected devices are located in China, Brazil, Russia, Italy, Indonesia, with the U.S. coming in at number eight, cybersecurity firm Eclypsium said in a report shared with The Hacker News. "These devices are both powerful, [and] often highly vulnerable," the researchers  noted . "This has made MikroTik devices a favorite among threat actors who have commandeered the devices for everything from DDoS attacks, command-and-control (aka 'C2'), traffic tunneling, and more." MikroTik devices are an enticing target not least because there are more than two million of them deployed worldwide, posing a huge attack surface that can be leveraged by threat actors to mount an array of intrusions. Indeed, earlier this Septem