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Distributed Denial of Service (DDoS) attacks have risen enormously in past few months and, mostly, they are coming from hacked and insecure internet-connected devices, most commonly known as Internet of Things (IoT). Recent DDoS attack against DNS provider Dyn that brought down a large chunk of the Internet came from hacked and vulnerable IoT devices such as DVRs, security cameras, and smart home appliances. This DDoS was the biggest cyber attack the world has ever seen. Now, in the latest incident, at least five Russian banks have been subject to a swathe of DDoS attacks for two days, said the Russian banking regulator. The state-owned Sberbank was one of the five targets of the attacks that began on last Tuesday afternoon and lasted over the next two days. According to Kaspersky Lab, the longest attack last for 12 hours and peaked at 660,000 requests per second came from a botnet of at least 24,000 hacked devices located in 30 countries. Although the culprit appears

During the weekend China's Internet was taken down by a powerful distributed denial of service (DDoS) attack on the .cn domain slowed and blocked Internet access inaccessibility for hours. Security expert clarified that China could have been perpetrated by sophisticated hackers or by a single individual. The China Internet Network Information Center [ CINIC ] reported that the attack began at 02:00 local time on Sunday with a peek at 04:00 that made it the largest DDoS attack the country's networks have ever faced. The CCINIC is responsible for registering sites in the .cn domain. Before malicious coders can launch a DDoS attack, they must infect the computers of unsuspecting users, often by tricking people into installing malware on their computers. The China Internet Network Information Center confirmed the attack with an official statement informing internet users that it is gradually restoring web services and that will operate to improve the security leve

It comes as no surprise that today's cyber threats are orders of magnitude more complex than those of the past. And the ever-evolving tactics that attackers use demand the adoption of better, more holistic and consolidated ways to meet this non-stop challenge. Security teams constantly look for ways to reduce risk while improving security posture, but many approaches offer piecemeal solutions – zeroing in on one particular element of the evolving threat landscape challenge – missing the forest for the trees.  In the last few years, Exposure Management has become known as a comprehensive way of reigning in the chaos, giving organizations a true fighting chance to reduce risk and improve posture. In this article I'll cover what Exposure Management is, how it stacks up against some alternative approaches and why building an Exposure Management program should be on  your 2024 to-do list. What is Exposure Management?  Exposure Management is the systematic identification, evaluation,

The DDoS techniques have massively increased with the attackers becoming more skillful at working around the network security. A massive 300Gbps DDoS attack launched against Spamhaus website almost broke the Internet a year ago and also earlier this year, hackers have succeeded in reaching new heights of the massive DDoS attack targeting content-delivery and anti-DDoS protection firm CloudFlare, reaching more than 400Gbps at its peak of traffic. Akamai's Prolexic Security Engineering and Response Team (PLXsert) issued a threat advisory on Thursday reporting a significant surge in DDoS attacks last month abusing the Simple Network Management Protocol (SNMP) interface in network devices. Simple Network Management Protocol (SNMP) is a UDP-based protocol which is commonly known and often used to manage network devices. SNMP is typically used in devices such as printers, routers and firewalls that can be found in the home and enterprise environments as well. Just as D

A Google security researcher has discovered a severe vulnerability in Blizzard games that could allow remote attackers to run malicious code on gamers' computers. Played every month by half a billion users—World of Warcraft, Overwatch, Diablo III, Hearthstone and Starcraft II are popular online games created by Blizzard Entertainment . To play Blizzard games online using web browsers, users need to install a game client application, called ' Blizzard Update Agent ,' onto their systems that run JSON-RPC server over HTTP protocol on port 1120, and " accepts commands to install, uninstall, change settings, update and other maintenance related options. " Google's Project Zero team researcher Tavis Ormandy discovered that the Blizzard Update Agent is vulnerable to a hacking technique called the " DNS Rebinding " attack that allows any website to act as a bridge between the external server and your localhost. Just last week, Ormandy revealed a simi

Next time when you see an advertisement of your favorite pair of shoes on any website, even if it is legitimate, just DO NOT CLICK ON IT. …Because that advertising could infect you in such a way that not just your system, but every device connected to your network would get affected. A few days ago, we reported about a new exploit kit, dubbed Stegano , that hides malicious code in the pixels of banner advertisements rotating on several high profile news websites. Now, researchers have discovered that attackers are targeting online users with an exploit kit called DNSChanger that is being distributed via advertisements that hide malicious code in image data. Remember DNSChanger? Yes, the same malware that infected millions of computers across the world in 2012. DNSChanger works by changing DNS server entries in infected computers to point to malicious servers under the control of the attackers, rather than the DNS servers provided by any ISP or organization. So, wheneve

The Internet is becoming a dangerous place day-by-day and especially for those innocent web users who rely on 3rd party services. The latest bad news is that the World's largest and most widely used Google's free public DNS (Domain name system) resolvers  raised   security red flags yesterday. DNS is the master address list for the Internet, which translates IP addresses into human readable form and vice versa. According to Internet monitoring firm BGPmon , Google's DNS server 8.8.8.8 /32 was hijacked yesterday for 22 minutes. The Google's DNS server handles around 150 billion queries a day and during the 22 minutes of hijacking, millions of Internet users, including Financial institutions , Governments were redirected to BT's (British multinational telecommunications services company) Latin America division in Venezuela and Brazil. It is suspected that Hackers exploited a well-known  vulnerability in the so-called Border Gateway Protocol ( BGP) , which

Security researchers have been warning about an ongoing malware campaign hijacking Internet routers to distribute Android banking malware that steals users' sensitive information, login credentials and the secret code for two-factor authentication. In order to trick victims into installing the Android malware, dubbed Roaming Mantis , hackers have been hijacking DNS settings on vulnerable and poorly secured routers . DNS hijacking attack allows hackers to intercept traffic, inject rogue ads on web-pages and redirect users to phishing pages designed to trick them into sharing their sensitive information like login credentials, bank account details, and more. Hijacking routers' DNS for a malicious purpose is not new. Previously we reported about widespread DNSChanger and Switcher —both the malware worked by changing the DNS settings of the wireless routers to redirect traffic to malicious websites controlled by attackers. Discovered by security researchers at Kaspersk

After the Heartbleed bug that exposed half of the Internet vulnerable to hackers thereby marking as one of the largest Internet vulnerability in recent history, the critical flaw in the implementation of the DNS protocol could also represent a serious menace to the Internet security. A Serious security vulnerability has been discovered in the algorithms of DNS software – BIND by the two Israeli students ' Roee Hay ' and ' Jonathan Kalechstein ', who are working under a project out at the Laboratory of Computer Communication & Networking in the Faculty of Computer Science at the Technion , which was led by Dr. Gabi Nakibly from Rafael (Rafael Advanced Defense Systems Ltd.). Although, Technion students have not provided any detail explanation about the vulnerability , but indicated that by exploiting the DNS protocol flaw an attacker could redirect the users who are trying to visit a legitimate website to a fake and bogus website which the attacker con

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

An analysis of over 70 billion DNS records has led to the discovery of a new sophisticated malware toolkit dubbed  Decoy Dog  targeting enterprise networks. Decoy Dog , as the name implies, is evasive and employs techniques like strategic domain aging and DNS query dribbling, wherein a series of queries are transmitted to the command-and-control (C2) domains so as to not arouse any suspicion. "Decoy Dog is a cohesive toolkit with a number of highly unusual characteristics that make it uniquely identifiable, particularly when examining its domains on a DNS level," Infoblox  said  in an advisory published late last month. The cybersecurity firm, which identified the malware in early April 2023 following anomalous DNS beaconing activity, said its atypical characteristics allowed it to map additional domains that are part of the attack infrastructure. That said, the usage of Decoy Dog in the wild is "very rare," with the DNS signature matching less than 0.0000027%

If you are using the Internet, there are the possibilities that you are open to attack. The Transmission Control Protocol (TCP) implementation in all Linux systems deployed since 2012 ( version 3.6 and above of the Linux kernel ) poses a serious threat to Internet users, whether or not they use Linux directly. This issue is troubling because Linux is used widely across the Internet, from web servers to Android smartphones, tablets, and smart TVs. Researchers have uncovered a serious Internet flaw, which if exploited, could allow attackers to terminate or inject malware into unencrypted communication between any two vulnerable machines on the Internet. The vulnerability could also be used to forcefully terminate HTTPS encrypted connections and downgrade the privacy of secure connections, as well as also threatens anonymity of Tor users by routing them to certain malicious relays. The flaw actually resides in the design and implementation of the Request for Comments: 5961 ( RF

A critical vulnerability has been discovered in the widely used Transmission BitTorrent app that could allow hackers to remotely execute malicious code on BitTorrent users' computers and take control of them. The vulnerability has been uncovered by Google's Project Zero vulnerability reporting team, and one of its researchers Tavis Ormandy has also posted a proof-of-concept attack—just 40 days after the initial report. Usually, Project Zero team discloses vulnerabilities either after 90 days of reporting them to the affected vendors or until the vendor has released a patch. However, in this case, the Project Zero researchers disclosed the vulnerability 50 days prior to the actual time limit because Transmission developers failed to apply a ready-made patch provided by the researchers over a month ago. "I'm finding it frustrating that the transmission developers are not responding on their private security list, I suggested moving this into the open so that

So far, we all are well aware of the fact that Chinese have had a past filled with cases of Cyber Crime. China is the world's largest exporter of IT goods, but it has been criticized by many countries due to suspected backdoors in its products, including United States which has banned its several major government departments, including NASA, Justice and Commerce Departments, from purchasing Chinese products and computer technology. The new exposure indicates the same. Chinese Government is running a man-in-the-middle (MitM) cyber attack campaign on SSL encrypted traffic between the country's education network and Google. In an effort to monitor its users of China Education and Research Network (CERNET) , Chinese authorities has started intercepting encrypted traffic to and from Google's servers, the non-profit organization GreatFire reported on Thursday. However, just like many other foreign websites, Google is blocked in China. Because Google is one of the vast and v

Cloudflare on Thursday said it mitigated thousands of hyper-volumetric HTTP distributed denial-of-service (DDoS) attacks that exploited a recently disclosed flaw called  HTTP/2 Rapid Reset , 89 of which exceeded 100 million requests per second (RPS). "The campaign contributed to an overall increase of 65% in HTTP DDoS attack traffic in Q3 compared to the previous quarter ," the web infrastructure and security company said in a report shared with The Hacker News. "Similarly,  L3/4 DDoS attacks  also increased by 14%." The total number of HTTP DDoS attack requests in the quarter surged to 8.9 trillion, up from 5.4 trillion in Q2 2023 and 4.7 trillion in Q1 2023. The number of attack requests in Q4 2022 stood at 6.5 trillion. HTTP/2 Rapid Reset (CVE-2023-44487) came to light earlier this month following an industry-wide coordinated disclosure that delved into DDoS attacks orchestrated by an unknown actor by leveraging the flaw to target various providers such as

A new malware campaign has been exploiting the updating mechanism of the eScan antivirus software to distribute backdoors and cryptocurrency miners like XMRig through a long-standing threat codenamed GuptiMiner targeting large corporate networks. Cybersecurity firm Avast said the activity is the work of a threat actor with possible connections to a North Korean hacking group dubbed  Kimsuky , which is also known as Black Banshee, Emerald Sleet, and TA427. "GuptiMiner is a highly sophisticated threat that uses an interesting infection chain along with a couple of techniques that include performing DNS requests to the attacker's DNS servers, performing sideloading, extracting payloads from innocent-looking images, signing its payloads with a custom trusted root anchor certification authority, among others," Avast  said . The intricate and elaborate infection chain, at its core, leverages a security shortcoming in the update mechanism of Indian antivirus vendor eScan to

A deeper analysis of a recently discovered malware called  Decoy Dog  has revealed that it's a significant upgrade over the  Pupy RAT , an open-source remote access trojan it's modeled on. "Decoy Dog has a full suite of powerful, previously unknown capabilities – including the ability to move victims to another controller, allowing them to maintain communication with compromised machines and remain hidden for long periods of time," Infoblox  said  in a Tuesday report. "Some victims have actively communicated with a Decoy Dog server for over a year." Other new features allow the malware to execute arbitrary Java code on the client and connect to emergency controllers using a mechanism that's similar to a traditional DNS domain generation algorithm ( DGA ), with the Decoy Dog domains engineered to respond to replayed DNS queries from breached clients. "Decoy Dog has added functionality not available in Pupy," Dr. Renée Burton, head of threat

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