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Cybersecurity researchers have discovered a new emerging IoT botnet threat that leverages compromised smart devices to stage ' distributed denial-of-service ' attacks, potentially triggered on-demand through platforms offering DDoS-for-hire services. The botnet, named "dark_nexus" by Bitdefender researchers, works by employing credential stuffing attacks against a variety of devices, such as routers (from Dasan Zhone, Dlink, and ASUS), video recorders, and thermal cameras, to co-opt them into the botnet. So far, dark_nexus comprises at least 1,372 bots, acting as a reverse proxy, spanning across various locations in China, South Korea, Thailand, Brazil, and Russia. "While it might share some features with previously known IoT botnets, the way some of its modules have been developed makes it significantly more potent and robust," the researchers said . "For example, payloads are compiled for 12 different CPU architectures and dynamically deliver

Cybersecurity researchers today uncovered a sustained malicious campaign dating back to May 2018 that targets Windows machines running MS-SQL servers to deploy backdoors and other kinds of malware, including multi-functional remote access tools (RATs) and cryptominers. Named " Vollgar " after the Vollar cryptocurrency it mines and its offensive "vulgar" modus operandi, researchers at Guardicore Labs said the attack employs password brute-force to breach Microsoft SQL servers with weak credentials exposed to the Internet. Researchers claim the attackers managed to successfully infect nearly 2,000-3,000 database servers daily over the past few weeks, with potential victims belonging to healthcare, aviation, IT & telecommunications, and higher education sectors across China, India, the US, South Korea, and Turkey. Thankfully for those concerned, researchers have also released a script to let sysadmins detect if any of their Windows MS-SQL servers have been

Imagine a world where the software that powers your favorite apps, secures your online transactions, and keeps your digital life could be outsmarted and taken over by a cleverly disguised piece of code. This isn't a plot from the latest cyber-thriller; it's actually been a reality for years now. How this will change – in a positive or negative direction – as artificial intelligence (AI) takes on a larger role in software development is one of the big uncertainties related to this brave new world. In an era where AI promises to revolutionize how we live and work, the conversation about its security implications cannot be sidelined. As we increasingly rely on AI for tasks ranging from mundane to mission-critical, the question is no longer just, "Can AI  boost cybersecurity ?" (sure!), but also "Can AI  be hacked? " (yes!), "Can one use AI  to hack? " (of course!), and "Will AI  produce secure software ?" (well…). This thought leadership article is about the latter. Cydrill  (a

International hotel chain Marriott today disclosed a data breach impacting nearly 5.2 million hotel guests, making it the second security incident to hit the company in recent years. "At the end of February 2020, we identified that an unexpected amount of guest information may have been accessed using the login credentials of two employees at a franchise property," Marriott said in a statement . "We believe this activity started in mid-January 2020. Upon discovery, we confirmed that the login credentials were disabled, immediately began an investigation, implemented heightened monitoring, and arranged resources to inform and assist guests." The incident exposed guests' personal information such as contact details (name, mailing address, email address, and phone number), loyalty account information (account number and points balance), and additional information such as company, gender, dates of births, room preferences, and language preferences. The ho

A new version of the infamous Mirai botnet is exploiting a recently uncovered critical vulnerability in network-attached storage (NAS) devices in an attempt to remotely infect and control vulnerable machines. Called " Mukashi ," the new variant of the malware employs brute-force attacks using different combinations of default credentials to log into Zyxel NAS, UTM, ATP, and VPN firewall products to take control of the devices and add them to a network of infected bots that can be used to carry out Distributed Denial of Service (DDoS) attacks. Multiple Zyxel NAS products running firmware versions up to 5.21 are vulnerable to the compromise, Palo Alto Networks' Unit 42 global threat intelligence team said, adding they uncovered the first such exploitation of the flaw in the wild on March 12. Zyxel's Pre-Authentication Command Injection Flaw Mukashi hinges on a pre-authentication command injection vulnerability (tracked as CVE-2020-9054 ), for which a proof-

As the world comes to grips with the coronavirus pandemic , the situation has proven to be a blessing in disguise for threat actors, who've taken advantage of the opportunity to target victims with scams or malware campaigns. Now, according to a new report published by Check Point Research today and shared with The Hacker News, hackers are exploiting the COVID-19 outbreak to spread their own infections, including registering malicious Coronavirus-related domains and selling discounted off-the-shelf malware in the dark web. "Special offers by different hackers promoting their 'goods' — usually malicious malware or exploit tools — are being sold over the darknet under special offers with 'COVID19' or 'coronavirus' as discount codes, targeting wannabe cyber-attackers," the cybersecurity firm said. COVID-19 Discounts: Exploit Tools for Sale The report comes following an uptick in the number of malicious coronavirus-related domains that hav

The U.S. Department of Homeland Security's Cybersecurity and Infrastructure Security Agency (CISA) earlier today issued a warning to all industries operating critical infrastructures about a new ransomware threat that if left unaddressed could have severe consequences. The advisory comes in response to a cyberattack targeting an unnamed natural gas compression facility that employed spear-phishing to deliver ransomware to the company's internal network, encrypting critical data and knocking servers out of operation for almost two days. "A cyber threat actor used a spear-phishing link to obtain initial access to the organization's information technology network before pivoting to its operational technology network. The threat actor then deployed commodity ransomware to encrypt data for impact on both networks," CISA noted in its alert. As ransomware attacks continue to escalate in frequency and scale , the new development is yet another indication that p

Emotet, the notorious trojan behind a number of botnet-driven spam campaigns and ransomware attacks, has found a new attack vector: using already infected devices to identify new victims that are connected to nearby Wi-Fi networks. According to researchers at Binary Defense , the newly discovered Emotet sample leverages a "Wi-Fi spreader" module to scan Wi-Fi networks, and then attempts to infect devices that are connected to them. The cybersecurity firm said the Wi-Fi spreader has a timestamp of April 16, 2018, indicating the spreading behavior has been running "unnoticed" for close to two years until it was detected for the first time last month. The development marks an escalation of Emotet's capabilities, as networks in close physical proximity to the original victim are now susceptible to infection. How Does Emotet's Wi-Fi Spreader Module Work? The updated version of the malware works by leveraging an already compromised host to list all

Image credit: Times of Israel. Aleksei Burkov, a 29-year-old Russian hacker, on Thursday pleaded guilty to multiple criminal charges for running two illegal websites that helped cyber criminals commit more than $20 million in credit card fraud. The first website Burkov operated was an online marketplace for buying and selling stolen credit card and debit card numbers—called Cardplanet —which roughly hosted 150,000 payment card details between the years 2009 and 2013. Cardplanet marketplace offered stolen payment card details for anywhere between $2.50 and $10 a card, depending on the card type, country of origin, and the availability of card owner information. The carding website even offered a paid service that allowed buyers to instantly verify if a stolen payment card were still valid. "Many of the cards offered for sale belonged to U.S. citizens. The stolen credit card data from more than 150,000 compromised payment cards was allegedly sold on Burkov's site and

It's now or never to prevent your enterprise servers running vulnerable versions of Citrix application delivery, load balancing, and Gateway solutions from getting hacked by remote attackers. Why the urgency? Earlier today, multiple groups publicly released weaponized proof-of-concept exploit code [ 1 , 2 ] for a recently disclosed remote code execution vulnerability in Citrix's NetScaler ADC and Gateway products that could allow anyone to leverage them to take full control over potential enterprise targets. Just before the last Christmas and year-end holidays, Citrix announced that its Citrix Application Delivery Controller (ADC) and Citrix Gateway are vulnerable to a critical path traversal flaw (CVE-2019-19781) that could allow an unauthenticated attacker to perform arbitrary code execution on vulnerable servers. Citrix confirmed that the flaw affects all supported version of the software, including: Citrix ADC and Citrix Gateway version 13.0 all supported build

Landry's, a popular restaurant chain in the United States, has announced a malware attack on its point of sale (POS) systems that allowed cybercriminals to steal customers' payment card information. Landry's owns and operates more than 600 bars, restaurants, hotels, casinos, food and beverage outlets with over 60 different brands such as Landry's Seafood, Chart House, Saltgrass Steak House, Claim Jumper, Morton's The Steakhouse, Mastro's Restaurants, and Rainforest Cafe. According to the  breach notification published this week, the malware was designed to search for and likely steal sensitive customer credit card data, including credit card numbers, expiration dates, verification codes and, in some cases, cardholder names. The PoS malware infected point-of-sale terminals at all Landry's owned locations, but, fortunately, due to end-to-end encryption technology used by the company, attackers failed to steal payment card data from cards swiped at its

A British man suspected to be a member of ' The Dark Overlord ,' an infamous international hacking group, has finally been extradited to the United States after being held for over two years in the United Kingdom. Nathan Francis Wyatt , 39, appeared in federal court in St. Louis, Missouri, on Wednesday to face charges related to his role in hacking healthcare and accounting companies in the U.S. and then threatening to publish stolen information unless victims paid a ransom in Bitcoin. According to a court indictment unsealed yesterday, Wyatt faces one count of conspiracy, two counts of aggravated identity theft and three counts of threatening to damage a protected computer. However, the suspect has not yet pledged guilty to any of the charges in the U.S. federal court, where he appeared after fighting for 11 months to avoid being extradited from Britain. Cyber Attacks by The Dark Overlord Group British police first arrested Wyatt in September 2016 during an inves

Cybercriminals are busy innovators, adapting their weapons and attack strategies, and ruthlessly roaming the web in search of their next big score. Every manner of sensitive information, such as confidential employee records, customers' financial data, protected medical documents, and government files, are all subject to their relentless threats to cybersecurity . Solutions span a broad spectrum, from training email users to ensuring a VPN kill switch is in place, to adding extensive advanced layers of network protection. To successfully guard against severe threats from hackers, worm viruses to malware, such as botnet attacks, network managers need to use all tools and methods that fit well into a comprehensive cyber defense strategy. Of all the menaces mentioned above to a website owner's peace of mind, botnets arguably present the most unsettling form of security risk. They're not the mere achievements of malicious amateur cybercriminals. They're state

2010-2019 decade will be remembered as the time in which cybersecurity became acknowledged as a critical concern for all organizations. With rapidly growing security needs and respective budgets, it is now more essential than ever for security decision-makers to zoom out of the 'products' mindset and assess their security stack in light of the overall breach protection value that their investments return. The 2020 State of Breach Protection Survey ( click here to participate ) attempts to map out for the first time how breach protection is practiced and maintained globally – what are the common products, services, concerns, and challenges that are most common amongst organizations. Any security professional filling the anonymous salary survey questionnaire , organised by The Hacker News in partnership with Cynet, will get a free copy of the survey report once it is released in January 2020. You can complete the questionnaire here . Why is that important? Because unli

A new variant of Vega ransomware family, dubbed Zeppelin , has recently been spotted in the wild targeting technology and healthcare companies across Europe, the United States, and Canada. However, if you reside in Russia or some other ex-USSR countries like Ukraine, Belorussia, and Kazakhstan, breathe a sigh of relief, as the ransomware terminates its operations if found itself on machines located in these regions. It's notable and interesting because all previous variants of the Vega family, also known as VegaLocker, were primarily targeting Russian speaking users, which indicates Zeppelin is not the work of the same hacking group behind the previous attacks. Since Vega ransomware and its previous variants were offered as a service on underground forums, researchers at BlackBerry Cylance believes either Zeppelin "ended up in the hands of different threat actors" or "redeveloped from bought/stolen/leaked sources." According to a report BlackBerry Cyl

Cybersecurity researchers have spotted a new variant of the Snatch ransomware that first reboots infected Windows computers into Safe Mode and only then encrypts victims' files to avoid antivirus detection. Unlike traditional malware, the new Snatch ransomware chooses to run in Safe Mode because in the diagnostic mode Windows operating system starts with a minimal set of drivers and services without loading most of the third-party startup programs, including antivirus software. Snatch has been active since at least the summer of 2018, but SophosLabs researchers spotted the Safe Mode enhancement to this ransomware strain only in recent cyber attacks against various entities they investigated. "SophosLabs researchers have been investigating an ongoing series of ransomware attacks in which the ransomware executable forces the Windows machine to reboot into Safe Mode before beginning the encryption process," the researchers say . "The ransomware, which calls it