botnet | Breaking Cybersecurity News | The Hacker News

A massive malicious email campaign that stems from the Necurs botnet is spreading a new ransomware at the rate of 5 million emails per hour and hitting computers across the globe. Dubbed "Jaff," the new file-encrypting ransomware is very similar to the infamous Locky ransomware in many ways, but it is demanding 1.79 Bitcoins (approx $3,150), which much higher than Locky, to unlock the encrypted files on an infected computer. According to security researchers at Forcepoint Security Lab, Jaff ransomware, written in C programming language, is being distributed with the help of Necurs botnet that currently controls over 6 million infected computers worldwide. Necurs botnet is sending emails to millions of users with an attached PDF document, which if clicked, opens up an embedded Word document with a malicious macro script to downloads and execute the Jaff ransomware, Malwarebytes says . Jaff is Spreading at the Rate of 5 Million per Hour The malicious email camp

A new botnet consisting of more than 15,000 compromised servers has been used to mine various cryptocurrencies, earning its master around $25,000 per month. Mining cryptocurrencies can be a costly investment, as it requires an enormous amount of computing power, but cybercriminals have found an easy money-making solution. Dubbed BondNet, the botnet was first spotted in December 2016 by GuardiCore researchers, who traced back the botnet malware developer, using online handle Bond007.01, to China. According to the GuardiCore researchers, Bond007.01 is currently using BondNet for mining cryptocurrencies — primarily Monero, but also ByteCoin, RieCoin, and ZCash — but they warn that the hacker could easily take full control of compromised servers for malicious purposes, like mounting Mirai-style DDoS attacks. BondNet Attacks only Windows Server Machines Since mining cryptocurrencies require large amounts of CPU/GPU power, the botnet master goes after Windows Server machin

Identities now transcend human boundaries. Within each line of code and every API call lies a non-human identity. These entities act as programmatic access keys, enabling authentication and facilitating interactions among systems and services, which are essential for every API call, database query, or storage account access. As we depend on multi-factor authentication and passwords to safeguard human identities, a pressing question arises: How do we guarantee the security and integrity of these non-human counterparts? How do we authenticate, authorize, and regulate access for entities devoid of life but crucial for the functioning of critical systems? Let's break it down. The challenge Imagine a cloud-native application as a bustling metropolis of tiny neighborhoods known as microservices, all neatly packed into containers. These microservices function akin to diligent worker bees, each diligently performing its designated task, be it processing data, verifying credentials, or

Rapidly growing, insecure internet-connected devices are becoming albatross around the necks of individuals and organizations with malware authors routinely hacking them to form botnets that can be further used as weapons in DDoS and other cyber attacks. But now finding malicious servers, hosted by attackers, that control botnet of infected machines gets a bit easier. Thanks to Shodan and Recorded Future. Shodan and Recorded Future have teamed up and launched Malware Hunter – a crawler that scans the Internet regularly to identify botnet command and control (C&C) servers for various malware and botnets. Command-and-control servers ( C&C servers ) are centralized machines that control the bots ( computers, smart appliances or smartphones ), typically infected with Remote Access Trojans or data-stealing malware, by sending commands and receiving data. Malware Hunter results have been integrated into Shodan – a search engine designed to gather and list information abo

Last week, we reported about a so-called 'vigilante hacker' who hacked into at least 10,000 vulnerable 'Internet of Things' devices, such as home routers and Internet-connected cameras, using a botnet malware in order to supposedly secure them. Now, that vigilante hacker has already trapped roughly 300,000 devices in an IoT botnet known as Hajime , according to a new report published Tuesday by Kaspersky Lab, and this number will rise with each day that passes by. The IoT botnet malware was emerged in October 2016, around the same time when the infamous Mirai botnet threatened the Internet last year with record-setting distributed denial-of-service (DDoS) attacks against the popular DNS provider Dyn. How the Hajime IoT Botnet Works Hajime botnet works much like Mirai by spreading itself via unsecured IoT devices that have open Telnet ports and uses default passwords and also uses the same list of username and password combinations that Mirai is programm

It should be noted that hacking a system for unauthorised access that does not belong to you is an illegal practice, no matter what's the actual intention behind it. Now I am pointing out this because reportedly someone, who has been labeled as a 'vigilante hacker' by media, is hacking into vulnerable 'Internet of Things' devices in order to supposedly secure them. This is not the first time when any hacker has shown vigilance, as we have seen lots of previous incidents in which hackers have used malware to compromise thousands of devices, but instead of hacking them, they forced owners to make them secure. Dubbed Hajime , the latest IoT botnet malware, used by the hacker, has already infected at least 10,000 home routers, Internet-connected cameras, and other smart devices. But reportedly, it's an attempt to wrestle their control from Mirai and other malicious threats. Mirai is an IoT botnet that threatened the Internet last year with record-sett

A Russian computer hacker arrested over the weekend in Barcelona was apparently detained for his role in a massive computer botnet, and not for last year's US presidential election hack as reported by the Russian media. Peter Yuryevich Levashov, 32-years-old Russian computer programmer, suspected of operating the Kelihos botnet — a global network of over 100,000 infected computers that was used to deliver spam, steal login passwords, and infect computers with ransomware and other types of malware since approximately 2010, the U.S. Justice Department announced Monday. As suspected earlier, Levashov, also known as Peter Severa, is the same man who has also been listed in the World's Top 10 Worst Spammers maintained by anti-spam group Spamhaus , which has given him the 7th position in the list. The arrest was made possible after the FBI learned just last month that Levashov was traveling with his family to Spain from his home in Russia, a country without any extraditi

Update (Tuesday, April 11):  The arrest of a Russian man in Spain was apparently for his role in Kelihos botnet responsible for sending hundreds of millions of spam emails worldwide. A Russian computer hacker and alleged spam kingpin was arrested in Barcelona, Spain, on Friday reportedly over suspicion of being involved in hacking attacks linked to alleged interference in last year's United States presidential election process . 36-year-old Peter Yuryevich Levashov  from St. Petersburg was detained by police in Barcelona after US authorities issued an international arrest warrant for his arrest. While the Russian embassy in Madrid announced Levashov's arrest on Sunday, it did not confirm the reason for his arrest. This is the second arrest made by the Spanish authorities since the US 2016 election. In January, the police detained Stanislav Lisov , 32, on suspicion of creating and operating the NeverQuest Banking Trojan and possibly influencing the presidential elec

Gift cards have once again caused quite a headache for retailers, as cyber criminals are using a botnet to break into and steal cash from money-loaded gift cards provided by major retailers around the globe. Dubbed GiftGhostBot , the new botnet specialized in gift card fraud is an advanced persistent bot (APB) that has been spotted in the wild by cyber security firm Distil Networks. GiftGhostBot has been seen attacking almost 1,000 websites worldwide and defrauding legitimate consumers of the money loaded on gift cards since Distil detected the attack late last month. According to the security firm, any website – from luxury retailers, supermarkets to coffee distributors – that allow their customers to buy products with gift cards could be targeted by the botnet. Operators of the GiftGhostBot botnet launch brute-force attacks against retailer's website to check potential gift card account numbers at a rate of about 1.7 Million numbers per hour, and request the balance f

Bad news for gamers! It's once again the time when most of you will get new PlayStations and XBoxes that continue to be among the most popular gifts for Christmas, but possibilities are you'll not be able to log into the online gaming console, just like what happens on every Christmas holidays. On 2014 Christmas holidays, the notorious hacker group Lizard Squad knocked the PlayStation Network and Xbox Live offline for many gamers by launching massive DDoS attacks against the gaming networks. This time a new hacking group, who managed to take down Tumblr this week for almost two hours, has warned gamers of launching another large-scale distributed denial-of-service (DDoS) attack against XBox Live and PlayStation networks. Calling itself R.I.U. Star Patrol , the hacking group, posted a video on YouTube , announcing that they're planning to take down Sony's PSN and Microsoft's Xbox Live on Christmas Day by launching coordinated DDoS attacks. "We do it because w

The biggest advertising fraud ever! A group of hackers is making between $3 Million to $5 Million per day from United States brands and media companies in the biggest digital ad fraud ever discovered. Online fraud-prevention firm White Ops uncovered this new Ad fraud campaign, dubbed " Methbot ," that automatically generates more than 300 Million fraudulent video ad impressions every day. The cyber criminal gang, dubbed AFT13, has developed Methbot robo-browser that spoofs all the necessary interactions needed to initiate, carry out and complete the ad transactions. The hackers, allegedly based in Russia, registered more than 6,000 domains and 250,267 distinct URLs impersonating brand and names of high-profile websites like ESPN, Vogue, CBS Sports, Fox News and the Huffington Post, and selling fake video ad slots. Cyber criminals behind Methbot are using servers hosted in Texas and Amsterdam to power more than 570,000 bots with forged IP addresses, mostly belong

On Thursday, we compiled a story based on research published by a British security expert reporting that some cyber criminals are apparently using Mirai Botnet to conduct DDoS attacks against the telecommunication companies in Liberia, a small African country. In his blog post , Kevin Beaumont claimed that a Liberian transit provider confirmed him about the DDoS attack of more than 500 Gbps targeting one undersea cable servicing Internet connectivity for the entire country. Later, some media outlets also confirmed that the DDoS attack caused Internet outage in some parts of the country, citing 'slow Internet' and 'total outage' experienced by some local sources and citizens. "The DDoS is killing our business. We have a challenge with the DDoS. We are hoping someone can stop it. It's killing our revenue. Our business has frequently been targeted" an employee with one Liberian mobile service provider told PC World . Network firm Level 3 confirmed Zack Whittaker

Guess how many devices participated in last Friday's massive DDoS attack against DNS provider Dyn that caused vast internet outage? Just 100,000 devices. I did not miss any zeros. Dyn disclosed on Wednesday that a botnet of an estimated 100,000 internet-connected devices was hijacked to flood its systems with unwanted requests and close down the Internet for millions of users. Dyn executive vice president Scott Hilton has issued a statement , saying all compromised devices have been infected with a notorious Mirai malware that has the ability to take over cameras, DVRs, and routers. "We're still working on analyzing the data but the estimate at the time of this report is up to 100,000 malicious endpoints," Hilton said. "We are able to confirm that a significant volume of attack traffic originated from Mirai-based botnets." Mirai malware scans for Internet of Things (IoT) devices that are still using their default passwords and then enslaves those

You might be surprised to know that your security cameras, Internet-connected toasters and refrigerators may have inadvertently participated in the massive cyber attack that broke a large portion of the Internet on Friday. That's due to massive Distributed Denial of Service (DDoS) attacks against Dyn, a major domain name system (DNS) provider that many sites and services use as their upstream DNS provider for turning IP addresses into human-readable websites. The result we all know: Twitter, GitHub, Amazon, Netflix, Pinterest, Etsy, Reddit, PayPal, and AirBnb, were among hundreds of sites and services that were rendered inaccessible to Millions of people worldwide for several hours. Why and How the Deadliest DDoS Attack Happened It was reported that the Mirai bots were used in the massive DDoS attacks against DynDNS, but they "were separate and distinct" bots from those used to execute record-breaking DDoS attack against French Internet service and hosting

With rapidly growing Internet of Thing (IoT) devices, they have become a much more attractive target for cybercriminals. Just recently we saw a record-breaking Distributed Denial of Service (DDoS) attacks against the France-based hosting provider OVH that reached over one Terabit per second (1 Tbps), which was carried out via a botnet of infected IoT devices. Now, such attacks are expected to grow more rapidly as someone has just released the source code for IoT botnet, which was 'apparently' used to carry out world's largest DDoS attacks. Internet of Things-Botnet 'Mirai' Released Online Dubbed Mirai , the malware is a DDoS Trojan that targets BusyBox systems , a collection of Unix utilities specifically designed for embedded devices like routers. The malware is programmed to hijack connected IoT devices that are using the default usernames and passwords set by the factory before devices are first shipped to customers. Spotted by Brian Krebs , the

The Internet of Things (IoTs) or Internet-connected devices are growing at an exponential rate and so are threats to them. Due to the insecure implementation, these Internet-connected embedded devices, including Smart TVs, Refrigerators, Microwaves, Set-top boxes, Security Cameras and printers, are routinely being hacked and used as weapons in cyber attacks. We have seen how hackers literally turned more than 100,000 Smart TVs and Refrigerator into the cyber weapon to send out millions of malicious spam emails for hacking campaigns; we have also seen how hackers abused printers and set-top-boxes to mine Bitcoins. And now… Cyber crooks are hacking CCTV cameras to form a massive botnet that can blow large websites off the Internet by launching Distributed Denial-of-service (DDoS) attacks. Researchers at Security firm Sucuri came across a botnet of over 25,000 CCTV cameras targeting business around the globe while defending a small jewelry shop against a DDoS attack . Al

The world's most notorious financial hacking operation disrupted by Russian authorities in November, when they raided the offices associated with a Moscow-based film and production company named 25th Floor . According to the Russian authorities, 25th Floor was allegedly involved in distributing the notorious password-stealing malware known as Dyre Banking Trojan . Malware Costs Hundreds of $$$ Millions in Losses The Dyre banking Trojan was typically distributed via spam campaigns and was responsible for over hundreds of millions of dollars in losses at banking and financial institutions, including Bank of America Corp, PayPal, and JPMorgan Chase & Co. Dyre , also known as Dyreza , first appeared in July 2014 and updated to target Windows 10 systems and its newest Edge browser. However, Dyre has not been in use since the November raid, according to cyber security experts, who said the raid represents Russia's biggest effort up to date in cracking down

Last month, the Norway police arrested five hackers accused of running the MegalodonHTTP Remote Access Trojan (RAT). The arrests came as part of the joint operation between Norway's Kripos National Criminal Investigation Service and Europol, codenamed " OP Falling sTAR ." According to the United States security firm, all the five men, aged between 16 and 24 years and located in Romania, France, and Norway, were charged with possessing, using and selling malware. One of those arrested also confessed to running his own web store where he sold malware, designed to take full control of target computers, harvesting passwords, and other personal data. Moreover, the malware can be used to hijack webcams in real-time, and steal documents, images, and videos as well. "Damballa's threat discovery center worked in cooperation with the Norway police over the last few months to track and identify the author of the malware dubbed MegalodonHTTP," threat