Tag Archives: dos attacks

BadLock Opens Door for Samba-based MiTM, DDoS Attacks

Details of a new, high-impact vulnerability known as BadLock have been revealed, affecting Samba, the standard Windows interoperability suite of programs for Linux and Unix. As the researchers who discovered it noted, “we are pretty sure that there will be exploits soon after we publish all relevant information.” Fortunately, patches have been released today, and admins would behoove themselves to update their systems immediately. The vulnerability was discovered by Stefan Metzmacher, a member of the international Samba Core Team, working at SerNet on Samba. He reported the bug to Microsoft and has been working closely with the computing giant to fix the problem. The research team said that the security vulnerabilities can be mostly categorized as man-in-the-middle or denial of service attacks. The several MITM attacks that the flaw enables would permit execution of arbitrary Samba network calls using the context of the intercepted user. So for instance, by intercepting administrator network traffic for the Samba AD server, attackers could view or modify secrets within an AD database, including user password hashes, or shutdown critical services. On a standard Samba server, attackers could modify user permissions on files or directories. As far as DDoS, Samba services are vulnerable to a denial of service from an attacker with remote network connectivity to the Samba service. While there are several proof of concept (PoC) exploits that researchers have developed, they’re not releasing them to the public, nor are they going into detail on what the vulnerability entails or arises from. Red Hat researchers offered a bit more on the flaw: It is “a protocol flaw in the DCE/RPC-based SAMR and LSA protocols used in the Microsoft Windows Active Directory infrastructure. DCE/RPC is the specification for a remote-procedure call mechanism that defines both APIs and an over-the-network protocol. The Security Account Manager (SAM) Remote Protocol (Client-to-Server) provides management functionality for an account store or directory containing users and groups. The protocol exposes the “account database” for both local and remote Microsoft Active Directory domains. The Local Security Authority (Domain Policy) Remote Protocol is used to manage various machine and domain security policies. This protocol, with minor exceptions, enables remote policy-management scenarios. Both SAMR and LSA protocols are based on the DCE 1.1 RPC protocol.” These protocols are typically available to all Windows installations, as well as every Samba server. They are used to maintain the Security Account Manager database, which applies to all roles (for example, standalone, domain controller or domain member). The flaw thus gives attackers a way to insert themselves into that communications chain, and go on to execute a MiTM or DDoS attack. The BadLock researchers announced weeks ago that they would be making this announcement and releasing patches, drawing not a little derision for hyping the situation—especially since they went so far as to develop a logo. But the researchers said that they were simply making use of the hash-taggable name to get people interested, talking about it and ready to patch. “Like Heartbleed, what branded bugs are able to achieve is best said with one word: Awareness,” the researchers noted. “It is a thin line between drawing attention to a severe vulnerability that should be taken seriously and overhyping it. This process didn’t start with the branding—it started a while ago with everyone working on fixes. The main goal of this announcement was to give a heads up. Vendors and distributors of Samba are being informed before a security fix is released in any case. This is part of any Samba security release process.” Source: http://www.infosecurity-magazine.com/news/badlock-opens-door-for-sambabased/

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BadLock Opens Door for Samba-based MiTM, DDoS Attacks

DDoS Attacks With BillGates Linux Malware Intensify

XOR botnet authors migrate to using BillGates malware Over the past six months, security researchers from Akamai’s SIRT team have observed a shift in the cyber-criminal underground to using botnets created via the BillGates malware to launch massive 100+ Gbps DDoS attacks. The BillGates malware is a relatively old malware family aimed at Linux machines running in server environments. Its primary purpose is to infect servers, link them together in a botnet controlled via a central C&C server, which instructs bots to launch DDoS attacks at their targets. The malware has been around for some years and due to its (irony-filled) name is probably one of the most well-known Linux-targeting malware families. Former XOR botnet operators reverted to using BillGates A BillGates botnet is capable of launching Layer 3, 4, and 7 DDoS attacks. More accurately it supports ICMP floods, TCP floods, UDP floods, SYN floods, HTTP floods and DNS reflection floods. According to Akamai’s Security Intelligence Research Team (SIRT), ever since the XOR DDoS botnet , also Linux-based, has been neutralized a few months back, hacking outfits have switched to the BillGates botnet for their attacks. While not as powerful as the XOR botnet, which was capable of launching 150+ Gbps attacks, BillGates attacks can go over 100 Gbps when needed. Moreover, as Akamai noticed, the hacking crew that deployed the XOR botnet has also switched to using BillGates malware, the CDN and cyber-security provider seeing DDoS attacks on the very same targets the XOR botnet crew was previously attacking. Most BillGates DDoS attacks targeted Asian online gaming servers DDoS attacks launched with this botnet have were seen targeting Asia-based companies and their digital properties, mostly located in online gaming. Besides the original XOR crew, the malware has been used to build different botnet by multiple gangs and has even been used as the base for other Linux-based DDoSing malware. The BillGates malware is available for purchase on underground hacking forums, and it comes in the form of a “malware builder” which allows each crew to generate its own strand, that can run on different C&C servers. Last June , Akamai observed a similar spike in DDoS attacks coming from botnets built with the BillGates malware. Source: http://news.softpedia.com/news/ddos-attacks-with-billgates-linux-malware-intensify-502697.shtml

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DDoS Attacks With BillGates Linux Malware Intensify

Over half of companies feel investment in DDoS protection is justified

A quarter of all companies risk their business-critical systems due to a lack of anti-DDoS protection according to new research by Kaspersky Lab. It’s the kind of absence that can cause enterprises massive financial loss and reputational damage and, according to the research, more than half of companies feel that investing in protection against DDoS attacks is justified. About the same number of survey respondents from telecoms (82 percent) and finance (78 percent) think anti-DDoS protection is an important cyber-security requirement for infrastructure. Just shy of a quarter (24 percent) of respondents don’t use DDoS protection or only use it part of the time (41 percent). Only 34 percent of companies are fully protected against the threat. A majority of companies with no anti-DDoS protection are the ones attacked the most often such as media (36 percent), healthcare and education (both 31 percent). A quarter of companies stated that the stability of business-critical systems is a priority for their organisation, however only 15 percent plan to implement anti-DDoS protection in the near future. “It’s important to take DDoS attacks seriously as they can be just as damaging to a business as any other cyber-crime, especially if used as part of a bigger targeted attack. Organisations must understand that protection of the IT infrastructure requires a comprehensive approach and continuous monitoring, regardless of the company’s size or sphere of activity,” said Russ Madley, head of B2B at Kaspersky Lab. Source: http://www.scmagazineuk.com/over-half-of-companies-feel-investment-in-ddos-protection-is-justified/article/487567/

Hacker Redirects DDoS Attack to Israeli Intelligence Site

A hacker using the handle “The Jester” allegedly rerouted distributed denial-of-service (DDoS) attacks to hit the Israeli intelligence agency Mossad. The Jester became a high-profile hacker in 2010 when he claimed to have attacked the Wikileaks website. He also is known to attack websites affiliated with ISIS, Hamas, Anonymous and the Occupy movement. In a 2010 article, the New York Times claimed the Jester is a former military contractor who was involved with US special forces operations. The Jester’s website reportedly came under attack with DDoS attacks, which the hacker claims to have redirected against the Israeli intelligence service. He claims to have altered the IP address that his website was registered on to the Mossad address. “To the s***loads attacking my blog, I’ve pointed my domain to 147.237.0.71. Ur now hitting Israeli Intelligence Service (Mossad). Good luck,” the Jester, or th3j35t3r, wrote in an online post. The hacker said he redirected the traffic to Mossad’s IP address because “they can look after themselves perfectly well,” according to reports. Israel’s Information and Communications Technology Authority reportedly issued a statement that Mossad’s website did not encounter irregularities or down time. The Israeli intelligence service’s website remains online and functional, while the Jester’s site is offline at the time of this post. Source: http://www.batblue.com/hacker-redirects-ddos-attack-to-israeli-intelligence-site/

Finnish Defense Ministry Hit by DDoS Cyberattack

Finland’s Ministry of Defence (MoD) is reviewing its IT security infrastructure in the wake of a distributed denial of service (DDoS) attack on its main website. The attack was launched hours before Finnish President Sauli Niinistö met with Russian President Vladimir Putin in Moscow on March 22 to discuss regional security issues and the implementation of deeper cooperation on border defense. Initial investigations by the National Cyber Defense Center (NCDC) are examining the possibility that the cyberattack may have been launched from Russia to coincide with high-level, inter-government talks. Similar DDoS attacks launched against public and private organizations in Sweden in March had traced the servers to Russia. Niinistö met with US President Barack Obama in Washington on April 1. The meeting took place during the international Nuclear Security Summit hosted by the US president. Finland’s MoD confirmed that the sustained DDoS attack, which lasted more than three hours, was the second such cyberattack against its online IT infrastructure in 2016. The MoD responded by diverting traffic from its main site defmin.fi to a temporary site. The previous DDoS attack took place Feb. 27 and lasted nearly five hours. Other key government department websites, including finance, social affairs and health, agriculture and forestry, and the Council of State office, were targeted in simultaneous attacks. The timing of the latest DDoS attack is significant, coming as Finnish and US governments finalize plans connected to joint military exercises in Finland. Source: http://www.defensenews.com/story/defense/international/2016/04/04/finnish-defense-ministry-hit-ddos-cyberattack/82608438/

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Finnish Defense Ministry Hit by DDoS Cyberattack

Coinkite Is Closing Down Its Web Wallet Citing Legal and DDoS Issues

Coinkite, the popular wallet and hardware payment network service provider, has announced it is closing down its web wallet to focus on other projects after legal issues and DDoS attacks have impeded the use of the wallet. Hardware products focus After a noticeable lack in posting on their blog after incredibly frequent posting over the last three years, Coinkite CT r: 24 has announced it is shutting down its web wallet service. Users of the service need not worry about the hardware aspect of Coinkite, as that will remain unaffected, and the team in fact hopes to expand it. “We are winding down the web wallet part of Coinkite so that our team can focus on a number of new products that are more decentralized and embodied as hardware products. We’re still big Bitcoin fans, supporters and Hodlrs, and although Coinkite has been great adventure in the SaaS business, we want to spend more time where our heart is, hardware products, software-”not-as-a-service”, and other exciting new possibilities.” Under DDoS since the first month Coinkite cited the legal issues associated with being a centralized Bitcoin CT r: 8 service, and hence the financial strain brought about by lawyers, and non-stop DDoS-ing since launch for the closing down of the service. “Being a centralized bitcoin service does attract attention from state actors and other well funded pains in the butt, and as a matter of fact, we’ve been under DDoS since the first month we launched—over three years–yay. Plus we have put real fiat dollars into our lawyers’ pockets, to defend our customers from their own governments. This is not what we love to do, which is coding and delivering awesome services.” Programmers-turned-businessmen an issue Part of the issue in the cryptocurrency industry is that many of those who are choosing to create businesses in this newly-fledged sector, are fundamentally programmers, and as such are ill-equipped to deal with the likes of lawyers and regulators. The simple solution to this problem is greater co-operation between the financial industry and the cryptocurrency industry. The financial sector has been around for far, far longer than the cryptocurrency industry. It has the infrastructure, processes, and people already in place to deal with a lot of the issues facing these programmers-turned-businessmen, and if more startups are to succeed, they are going to need to implement them. Source: http://cointelegraph.com/news/coinkite-is-closing-down-its-web-wallet-citing-legal-and-ddos-issues

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Coinkite Is Closing Down Its Web Wallet Citing Legal and DDoS Issues

The Anonymous ‘war’ on Donald Trump is a complete disaster

The “total war” that Anonymous declared earlier this month against Donald Trump has quickly devolved into a civil war among hackers fighting within the group and pro-Trump supporters who are trolling them within their chat rooms. In early March, hackers affiliated with Anonymous tried to reboot their Operation Trump campaign by calling for everyone to take down Trump’s websites in a coordinated effort on April 1. Almost immediately, the initiative was criticized by people within Anonymous as irresponsible and “cringeworthy,” but a dedicated group apparently moved on with the plan. It’s April 1: Many of the GOP frontrunner’s sites are still standing, there are now two competing OpTrump chat rooms with totally different missions, and one of them has been flooded with pro-Trump supporters and others leaving trolling comments like “Hitler did nothing wrong.” In short: The so-called war seems to be a complete disaster. ‘A mess is happening’ It’s unclear when the split between Anonymous factions occurred, but it seems to have happened sometime after a hacker named Beemsee, who has been leading the original OpTrump effort, released a new statement claiming that attacking Trump’s websites was all a ruse for publicity around April Fools’ Day. “There is no DDoS,” Beemsee and two other hackers wrote, using the acronym for a distributed denial-of-service attack, a tactic used to overload a website. “It’s only purpose was to gain attention, which this Operation needs. … the point of this Operation is not to attack Donald Trump. Instead, it is going to try to give citizens some insight.” Beemsee and their cohorts say in their statement that people should try and capture “the darker nature of Trump’s supporters” and post it on social media sites with hashtags like #OpTrump and #Trump2016. But a hacker called AnonymousLoyalist disagreed. In a competing statement, the hacker wrote that they moved to a “far more organized channel, which has already seen unsurprisingly large amounts of success.” That channel is #OpTrump2016, but it was unclear exactly what that success boiled down to. When Tech Insider viewed the #OpTrump2016 chat room on Friday, it was an unorganized mess. Most Anonymous chat rooms are moderated in some way, and people usually get kicked out for spamming or posting nonsense. But it appeared to be flooded with trolls intent on calling them children, “social justice warriors,” and, more often than not, homophobic slurs. “A mess is happening,” wrote one user in #OpTrump, expressing a shared frustration among others in Beemsee’s chat room. The ‘war’ goes on It was clear on Friday that at least some of Trump’s websites were indeed under cyberattack. The website CitizensForTrump.com is currently unreachable, and the site for Trump’s hotels brought up an error for a few seconds before pulling up a cached version powered by CloudFlare, a service that protects from attacks like this. Anonymous may be able to bring down some of Trump’s unprotected websites, but it will almost certainly come back online after a few hours or days. And many of his other sites are probably not at risk at all, since Tech Insider previously spoke with CloudFlare CEO Matthew Prince, and he wasn’t particularly worried. “DDoS attacks are not particularly sophisticated cyber attacks,” Prince said. “They are sort of the functional equivalent of a caveman with a club.” A representative for Trump did not immediately respond to a request for comment from Tech Insider, but spokeswoman Hope Hicks previously told Tech Insider: “The government and law-enforcement authorities are seeking the arrest of the people responsible for attempting to illegally hack Mr. Trump’s accounts and telephone information.” Depending on who you believe in Anonymous, the plan is a coordinated DDoS attack or a social-media shaming campaign against Trump’s supporters. But Beemsee left open the possibility of something else, perhaps an actual way to take over one of their targeted websites — which the hacker collective has been scanning for vulnerabilities since the beginning. “This is NOT the last time you hear of this operation,” Beemsee wrote. “We will be watching, and will act when the time is right.” Source: http://www.businessinsider.com/anonymous-war-donald-trump-fail-2016-4

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The Anonymous ‘war’ on Donald Trump is a complete disaster

Bitcoin Startup Quits Operation Due to Never-Ending DDoS Attacks

Bitcoin’s Secure Wallet Service Coinkite Inc. Closing Down due to never-ending DDoS Attacks and Governmental Nagging Bitcoin exchanges around the world face cyber attacks every now and then, some owners give up while some fight back . In the case of Bitcoin startup Coinkite Inc., it is now officially announced that its secure wallet service, which started in 2012, will be closed within the next 30 days. It has also been made clear that customers must withdraw funds from their wallets by the end of this period. If any of the users fail to do so then their Bitcoin will be automatically credited to them. Prior to closing down all of the services, its TOR accessibility and application program interface of Coinkite will be closed for 14 days while their annual pre-paid plans’ prorated balances will continue to be refunded. The startup was under DDoS attacks for last three years The company now aims to focus upon hardware-oriented products such as the upcoming physical Bitcoin project Opendime. It will be a full-fledged standalone Bitcoin terminal or hardware wallet that will be equipped with a printer as well as QR scanner. Moreover, the company will be focusing upon hardware products for security optimization and authentication, all-purpose standalone Bitcoin solutions and services for hosting Bitcoin hot wallets. Since its inception, Coinkite was marketed as the most convenient and secure way to accept and exchange Bitcoin, the digital currency. The company claimed that it provided users the world’s “most advanced web wallet system.” It was considered a system that empowered customers and merchants to “BUY, SELL, ACCEPT and STORE Bitcoins and other cryptocurrencies, in both the online and physical worlds.” Why is Coinkite Closing the Secure Wallet Service NOW? The decision apparently is the outcome of the constant harassment that the online Bitcoin wallet service has been dealing with. In a blog post , it was revealed by the company that they had been receiving Distributed Denial of Service or DDoS attacks constantly over the past three years. They also have become tired of the attempts by governmental agencies for interrupting into their clients’ privacy. The CEO of the company Rodolfo Novak told CoinDesk that they wanted to shift their focus from software to hardware because their meager resources were being drained further by the “bullshit” that they have been experiencing. “We want to write software, not deal with lawyers and DDoSing…One of the main issues with SaaS is all the free users and need support and we want to provide good support. All these things have costs,” clarified Novak. Source: https://www.hackread.com/bitcoin-exchange-ddos-attacks/

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Bitcoin Startup Quits Operation Due to Never-Ending DDoS Attacks

D.O.J. Charges Iran-Sponsored Hackers with Dozens of DDoS Attacks on Major Financial Institutions

No less than 46 U.S. financial institutions, as well as a dam in New York, were allegedly targeted. On Thursday morning, the Department of Justice unsealed an indictment against seven Iranian citizens allegedly funded by the Islamic Revolutionary Guard Corps, accusing them of launching a coordinated cyber-attack against a minimum of 46 American financial institutions, as well as a major New York dam. In a press conference with some of American law enforcement’s heaviest hitters, including F.B.I. director James Comey and U.S. district attorney Preet Bharara , Attorney General Loretta Lynch announced that members of two Iran-based computer companies, ITSecTeam and the Mersad Company, had launched coordinated distributed denial of service (DDoS) attacks against the Web sites of dozens of financial institutions, including the New York Stock Exchange, Bank of America, Capital One, ING, and AT&T, disabling them and preventing their customers from accessing their accounts. In addition, one of the alleged hackers, Hamid Firoozi , was said to have illegally accessed a computer in charge of the Bowman Dam in Rye, New York, giving him the ability to remotely control its operations and potentially cause “a threat to public health or safety.” According to the Department of Justice, the two groups received funding from the Islamic Revolutionary Guard, the elite government militia tasked with defending Islamic law in Iran. Lynch said in a statement that the attacks not only cost these companies “tens of millions of dollars” to restore their Web sites, but highlighted how foreign cyber-attacks have become a major threat to U.S. national security. “In unsealing this indictment, the Department of Justice is sending a powerful message: that we will not allow any individual, group, or nation to sabotage American financial institutions or undermine the integrity of fair competition in the operation of the free market,” she said in the prepared statement. According to the indictment, the DDoS attacks took place over 176 days between 2011 and 2013. The attacks on U.S. targets took place after Iran’s nuclear capabilities were sabotaged by the Stuxnet virus, believed to have been a joint effort between the U.S. and Israeli governments, in mid-2010. The indictment also comes after a series of high-profile cyber-attacks on the United States government. In 2014 alone, the government experienced more than 61,000 attacks on their computer systems, affecting several administrative agencies such as the State Department, the Energy Department, and the White House. Last year, the Office of Personnel Management (O.P.M.) was the target of the largest attack to date, in which Chinese hackers stole sensitive personal information from 21.5 million past and present government employees. During the press conference Thursday morning, Comey said that the indictment was meant to show the world that the U.S. government was ready to respond to foreign-based cyber-attacks, no matter where they came from or the scale of the attack. “By calling out the individuals and nations who use cyber-attacks to threaten American enterprise, as we have done in this indictment, we will change behavior,” he said. Source: http://www.vanityfair.com/news/2016/03/doj-iran-hacker-indictment

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D.O.J. Charges Iran-Sponsored Hackers with Dozens of DDoS Attacks on Major Financial Institutions

Hackers Target NASA with DDoS Attack, Claim to Shutdown Email Servers

Anonymous-linked Hackers Attack NASA’s System for Allegedly Keeping a Huge Secret Anonymous is a loosely connected group of hacktivists that doesn’t appreciate governments keeping secrets or conducting operations that somehow violate user privacy. So, to register their resentment what they do is attack the agency’s systems and hack critically important data. The same modus operandi was employed by an Anonymous-linked team of hackers called New World Hacking and AnonCorruption when they learned that NASA was “holding back information on many things, not just one.” NASA’s computer systems, allegedly, were attacked by New World Hacking team’s hacktivists and their supporters on Sunday night as part of a bigger campaign against government cover-ups called Operation Censorship or #OPCensorship. The hackers claimed that they have managed to shut down the space agency’s primary website and email servers. The attack was materialized through the most commonly used weapon called DDoS attack . However, NASA’s website was still found to be operational instead of being down as per the claims from the hacker group. But, the New World Hacking team provided proof, which suggested that some of the space agency’s systems were suffering from the aftershocks of what is termed as a digital blitzkrieg. Remember, the NWH is the same group who claimed responsibility for shutting down Xbox online service , BBC news servers , HSBC UK’s online banking, the official website for Donald Trump’s election campaign, Salt Lake city Police and airport websites . “NWH hackers vow to target Trump in their next cyber attack” While talking to HackRead, the group stated that NASA was attacked because they were convinced that the agency has important information about the extremist organization ISIS but it is withholding the information. The group also refused to reveal the secret information about ISIS. The attack hasn’t been confirmed or denied by NASA and we cannot possibly verify if the hacktivists’ claims are true or not since the site is working. Hackers also shared an inside screenshot and claimed that they could access the NASA’s Internet email server: Hackers claim they were able to get into the NASA server, however, the security implemented on the server didn’t let them go any further “We believe NASA is holding back information on many things, not just one. The main thing we suspect they are holding back some more information on ISIS that the public needs to know.We won’t tell the public what we think they are hiding – we will let NASA explain.” They also added that this attack is more like a practice run for the most important campaign against Donald Trump, which they plan to execute on April Fool’s day. “We want Trump to know that he is next,” the hackers added. Source: https://www.hackread.com/hackers-ddos-shutdown-nasa-website-email-server/

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Hackers Target NASA with DDoS Attack, Claim to Shutdown Email Servers