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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

Super Low RPO with Continuous Data Protection: Dial Back to Just Seconds Before an Attack Zerto , a Hewlett Packard Enterprise company, can help you detect and recover from ransomware in near real-time. This solution leverages continuous data protection (CDP) to ensure all workloads have the lowest recovery point objective (RPO) possible. The most valuable thing about CDP is that it does not use snapshots, agents, or any other periodic data protection methodology. Zerto has no impact on production workloads and can achieve RPOs in the region of 5-15 seconds across thousands of virtual machines simultaneously. For example, the environment in the image below has nearly 1,000 VMs being protected with an average RPO of just six seconds! Application-Centric Protection: Group Your VMs to Gain Application-Level Control   You can protect your VMs with the Zerto application-centric approach using Virtual Protection Groups (VPGs). This logical grouping of VMs ensures that your whole applica

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

The Norwegian police have arrested and charged a 17-year-old for a massive distributed denial-of-service (DDoS) attack earlier this week that disabled the websites of major financial institutions and other businesses in the country. Distributed Denial of Service (DDoS) attack is designed to sabotage, shut down and overload the targeted website with web traffic more than its capacity in order to make it unavailable to users. The attack targeted five major banks, two telecommunication firms, three airlines and one insurance company, as their websites and online payment systems were disrupted. The unnamed teen claimed to be a part of the hacktivist group Anonymous Norway for what was thought to be the country's biggest ever cyber-attack on businesses. Although, the Anonymous Norway, via a Twitter message, has dismissed any connection to him or the cyber attack. The youngster was a resident of Bergen, on Norway's west coast. He was arrested on Thursday morning and que

Dmitry Olegovich Zubakha, a  Russian  man accused of launching distributed-denial-of-service (DDOS) attacks on Amazon.com, has been arrested this week by authorities in Cyprus based on an international warrant, the Department of Justice revealed. Zubakha, a native of Moscow, was indicted for two denial of service attacks in 2008 on the Amazon.com website. The indictment, unsealed Thursday, also details denial of service attacks on Priceline.com and eBay. " Orders from Amazon.com customers dropped significantly, as legitimate customers were unable to access the website and complete their e-commerce transactions during the pendency of the attack ," read an indictment unsealed in district court in western Washington on Thursday. The botnet involved requested "large and resource-intensive web pages" on a magnitude of between 600 and 1,000 percent of normal traffic levels, according to the indictment. The hacker is charged with conspiracy to intentionally cause damage

If you were a buyer of any online DDoS-for-hire service, you might be in trouble. After taking down and arresting the operators of the world's biggest DDoS-for-hire service last year, the authorities are now in hunt for customers who bought the service that helped cyber criminals launch millions of attacks against several banks, government institutions, and gaming industry. Europol has announced that British police are conducting a number of live operations worldwide to track down the users of the infamous Webstresser.org service that the authorities dismantled in April 2018. Launched in 2015, Webstresser let its customers rent the service for about £10 to launch Distributed Denial of Service (DDoS) attacks against their targets with little to no technical knowledge, which resulted in more than 4 million DDoS attacks. According to the Europol announcement published on Monday, the agency gained access to the accounts of over 151,000 registered Webstresser users last yea