Use Cloud to Repel Distributed Denial of Service ‘DDoS’ attack

Employing cloud computing services could help organizations defend against the type of distributed denial of service attacks that have temporarily crippled the online service of major American banks, says NIST’s Matthew Scholl. By using cloud computing services, Scholl says in an interview with Information Security Media Group, enterprises no longer are completely dependent on their own physical infrastructure because they can add processing capabilities from the cloud to keep up with DDoS attacks. “You have an entire cloud infrastructure that you can spin up and provision to keep pace with the scale of the attack. And when the attack subsides, then you can drop an infrastructure back down again and just pay for that service that you needed when the attack occurs,” says Scholl, deputy chief of the National Institute of Standards and Technology’s computer security division. “We’ve seen use of cloud and the elasticity and the dynamic nature of cloud technology to be something that is kind of changing the economics of a DDoS attack.” In the interview, Scholl explains: Why he believes the recent DDoS attacks against banks may not be as dire as they appear [see Bank Attacks: What Have We Learned? ]; How the migration to IPv6 could help organizations can defend against DDoS attacks; Types of guidance NIST offers that could help organizations develop plans to handle DDoS attacks. Scholl says DDoS attacks won’t vanish anytime soon, but believes a government-industry partnerships could help diminish the impact of these digital assaults. “That’s going to be the solution to try to both enable us to defend against it on the organizational side and remove the capability of it at the threat side,” he says. Source: http://www.bankinfosecurity.com/interviews/nist-use-cloud-to-repel-ddos-attacks-i-1698

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Use Cloud to Repel Distributed Denial of Service ‘DDoS’ attack

Online DDoS downtime calculator

Prolexic has released a DDoS downtime cost calculator (registration required) which takes into consideration the many DDoS attack variables that can affect revenue. Using this calculator, businesse…

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Online DDoS downtime calculator

HSBC Falls in Latest Bank DDoS Attacks, What’s Next?

Capital One, HSBC, Bank of America, Wells Fargo are among the near-dozen financial Websites hit by distributed denial-of-service attacks over the past few weeks. These attacks have disrupted daily operations for banks and made it difficult for customers to take advantage of online banking services. A group calling itself Izz ad-Din al-Qassam Cyber Fighters has claimed credits for most of the incidents and has named the institutions it will target a few days before launching the attacks. Even with the prior warning, Websites of some of the country’s largest firms have been affected: Bank of America, JPMorgan Chase, PNC, U.S. Bank, Wells Fargo, Sun Trust, Regions Financial, Capital One, and BB&T. Capital One Bank was hit with two separate attacks, occurring on Oct. 9 and Oct. 16. HSBC was the latest one to be hit, as its Websites suffered online outages on Thursday.  A different group, Fawkes Security, claimed credit, but it’s not clear at this point whether the HSBC incident was different from the attacks against other banks or not. “This denial of service attack did not affect any customer data, but did prevent customers using HSBC online services, including internet banking,” the bank said in a statement on its Website. What are DDoS Attacks? A group of computers send larger than usual volume of traffic data to Websites to tie up server resources. Websites can’t handle the high volume, either knocking it offline entirely or being available only sporadically. “You can picture a distributed denial-of-service attack as being something like 15 fat men trying to get through a revolving door at the same time. Nothing moves,” said Graham Cluley, senior technology consultant at Sophos. Often in DDoS attacks, the computers used to bombard the targeted Websites with traffic have actually been hijacked. The computers are often infected with malware that give attackers control over the computer, usually without the owner’s knowledge. In these banking attacks, however, it appears that the perpetrators have hijacked servers instead of client machines, according to recent analysis by Radware. Difficult to Repel For banking customers, these DDoS attacks are just more annoying than damaging, While online systems have been intermittently unavailable, to date, it doesn’t appear that any customer or account information at any of the banks have been exposed because of the attacks. For financial institutions, they’ve been highly disruptive, as IT departments have to deal with significantly large attacks. “These are big, but we’ve seen this big before,” said Neal Quinn, chief operating officer of Prolexic, told Wired last week. “We’ve seen events this big in the past.” Even knowing that the attacks were coming, financial institutions have been unable to keep the attacks from knocking the sites offline. Each of the targeted banks experienced several hours of downtime, although Wells Fargo seemed to have weathered the crisis a little better than others. “I don’t want to minimize the potential damage it could cause to the industry,” Wells Fargo CFO Tim Sloan told Reuters, “But in terms of how the industry performed and how Wells Fargo performed in reaction to the recent efforts, we actually performed very well.” The bank will continue to invest in ways to defend against future DDoS attacks, according to Sloan, who called it as “a cost of doing business today.” Stay On Guard Even though each of the affected institutions have assured customers that no customer or account data has been compromised, security experts warn that it’s still too early to get complacent. DDoS attacks can often be a diversion so that IT teams don’t notice other malicious activity that may be happening at the same time. Gartner’s Avivah Litan told Government Info Security that she had anecdotal accounts of fraud slipping through banks’ overloaded call centers while the online channels are under attack. It wouldn’t be the first time DDoS attacks were used to distract overloaded administrators. Back in April 2011, Sony didn’t notice the attackers breaking into Sony servers to compromise over 100 million user accounts from the PlayStation Network, Sony  Online Entertainment, and Qriocity music service because it was distracted by large-scale DDoS attacks overwhelming its servers, the company said in a letter to Congress. “We are assuming that the attackers are doing this to perpetrate fraud,” Mike Smith, a security evangelist with online security provider Akamai Technologies, told Bank Info Security . Smith was specifically referring to the fact that Capital One was targeted for a second time, which may mean that attackers are looking for different ways to try to compromise employees and get access to customer accounts. “That’s the assumption we are operating under at this point,” Smith said. Source: http://securitywatch.pcmag.com/none/304145-hsbc-falls-in-latest-bank-ddos-attacks-what-s-next

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HSBC Falls in Latest Bank DDoS Attacks, What’s Next?

Microsoft concludes Russian programmer didn't operate Kelihos botnet

Following the settling of the Nitol botnet lawsuit earlier this month, Microsoft has announced on Friday that it has reached a settlement with Russian software programmer Andrey N. Sabelnikov, who was…

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Microsoft concludes Russian programmer didn't operate Kelihos botnet

Distributed Denial of Service ‘DDoS’ Attacks Increasing In Number and Intensity

Businesses are seeing an increase of Distributed Denial of Service (DDoS) attacks in comparison to last year, with attacks becoming shorter but more robust, according to a quarterly report released Oct. 16 by DDoS mitigation company Prolexic. During a DDoS incident, an attacker prevents users from being able to access a website. In order to achieve this, he typically uses malware to infect a network of computers, or botnet. The attacker can control the botnet to overwhelm a website with data and requests, forcing it to crash or become slow to the point of being unusable. For businesses, DDoS attacks can be crippling, resulting in a loss in profit or customer service until the website can be restored. Prolexic’s report found DDoS incidents have increased by 88 percent when compared to the same period of time last year. Perhaps more troubling, the incidents are becoming more intense, using higher bandwidth volumes. Prolexic President Stuart Scholly said that on average the company is seeing attacks with a bitrate of 20 gigabites per second or more every eight days. Few enterprises have networks with the capacity to withstand attacks of that size, he added. China continues to be the top source country for attacks, responsible for about 35 percent, with the United States following with 27 percent, the report found. Although the United States was the source country for only 8.76 percent of attacks last quarter, Scholly said the United States is typically the second-ranked source country after China. “Twenty gigs is the new norm,” he said. “There’s no doubt in my mind that that trend continues.” A DDoS toolkit called “itsoknoproblembro” was responsible for the majority of the high bandwidth floods this quarter, the report stated. The toolkit is especially effective because it targets vulnerable servers instead of individual computers, making the botnet easier to control and yielding a higher bandwidth, Scholly said. “What might have taken 50,000 compromised home machines before might only take a couple thousand servers now,” he said. “And it’s easier to coordinate the activities of a couple thousand high capacity machines.” The toolkit has been linked in reports to the suspected attacks on financial institutions during September, but Scholly would not comment on what companies were attacked, citing customer privacy. “What I can tell you is that this toolset is something that we’ve been observing over the years, and we’ve seen it used in multiple sectors,” he said. “It was has by no means been targeted at one individual sector.” Scholly would also not comment on what actors were responsible for the toolkit. Motivation for attacks can vary from state-sponsored activities, competing companies trying to get an economic advantage, or the overloading a server as a means of social protest, he said. Another continuing trend is the growing popularity of shorter attacks, Scholly said. “The more you expose your botnet during an attack, the greater likelihood that you have for someone to start taking it down,” he said. “So you want to accomplish your goal, and then kind of move on.” For DDoS protection against your eCommerce site please contact us . Source: http://www.nationaldefensemagazine.org/blog/Lists/Posts/Post.aspx?List=7c996cd7-cbb4-4018-baf8-8825eada7aa2&ID=929

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Distributed Denial of Service ‘DDoS’ Attacks Increasing In Number and Intensity

HSBC websites fell in DDoS attack last night, bank admits

Hacktivists blamed for online banking blackout Updated   HSBC has blamed a denial of service attack for the downtime of many of its websites worldwide on Thursday night.…

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HSBC websites fell in DDoS attack last night, bank admits

More Banks Come Under Denial-of-Service Attack

Capital One and SunTrust came under attack this week using denial-of-service techniques that are evading defenses meant to blunt such attacks. Capitol One and SunTrust Banks have become the latest targets of hackers who have leveled attacks at U.S. financial institutions in alleged retaliation for the posting of a movie on YouTube that has offended some Muslims. On Oct. 8, a group calling itself the Izz ad-Din al-Qassam Cyber Fighters posted a message on Pastebin stating that Capital One, SunTrust Banks and Regions Financial would each suffer an eight-hour attack starting with Capital One the next day. Even with the advanced warning, the financial institutions suffered outages, with Capital One’s site frequently inaccessible during the eight-hour period. “Some Capital One customers experienced intermittent online access due to a large volume of traffic going to the Website and servers,” the bank said in a statement posted to its Web site. ”Other banks have experienced similar issues in recent weeks due to targeted efforts designed to flood online systems, also known as a distributed denial-of-service attack.” On Oct. 10, SunTrust Banks suffered some performance issues, as did Regions Financial the next day, according to media reports. The attacks are the latest data floods in a campaign that started in mid-September. Under the name “Operation Ababil,” a group of alleged Iranian protestors called for supporters to attack the Bank of America, JPMorgan, Citigroup and Wells Fargo. Yet the crowd-sourced hacktivism effort caused little damage. Instead, a second attack coming from hundreds—or at most, thousands—of compromised servers made up the most effective part of the data flood. Using compromised servers and customized malware, the attackers have hit targeted sites with between 70G bps and 100G bps of peak traffic, according to experts. The attacks—launched from servers used to publish corporate Websites and blogs but running vulnerable content management software—sent packets of data crafted to evade typical defenses, even those specifically designed to curtail denial-of-service (DoS) attacks. “They had far fewer machines involved and with much larger bandwidth,” Dan Holden, director of security for network-protection firm Arbor Networks, said of the earlier attacks. “These are Web or hosting servers that have been compromised and are obviously poorly administered.” Typical defenses against distributed denial-of-service attacks attempt to minimize the impact of an attack by intercepting the request as far away from the target Website as possible. By blocking attacks in other networks, the customer is not impacted by a massive influx of data. However, the latest attacks are using evasion techniques to get around standard denial-of-service defenses, said Phil Lerner, vice president of technology at security firm Stonesoft. By crafting the data to look like valid encrypted Web requests, the network packets are allowed to get through to the customers’ own computers to decipher the information. Even if that system blocks the request as invalid, the avalanche of data buries the computer, which can’t keep up. “DDoS [distributed denial-of-service] mitigation is not a cure-all,” Learner said. “You don’t have enough protocol decoding capabilities, and you are only doing partial defenses, or none at all, on the evasion detection.” Companies need to adopt security defenses that handle such evasion techniques, he said. In July, a researcher at cloud-security firm Qualys demonstrated that evasion techniques can cause problems for Web application firewalls (WAFs) as well. A variety of tricks, sometimes just adding a single character, could bypass the security offered by WAFs, according to the research. Source: http://www.eweek.com/security/more-banks-come-under-denial-of-service-attack/

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More Banks Come Under Denial-of-Service Attack

U.S. banks warned of another Distributed Denial of Service ‘DDoS’ attack

Just as one type of attack against U.S. banks has subsided, the banks are being warned to get ready for another, called “Project Blitzkrieg,” aimed at online theft. Iran denies launching cyberattacks on U.S. banks The distributed-denial-of-service (DDoS) attacks that briefly disrupted the online services of a half-dozen major financial institutions late last month — Wells Fargo, U.S. Bancorp, PNC Financial Services Group, Citigroup, Bank of America and JPMorgan Chase — ended abruptly about two weeks ago, even though the group that claimed credit for them had threatened to continue them. Izz al-Din al-Qassam Cyber Fighters, the military wing of Hamas, the Islamic party that governs the Gaza Strip, had said in a Pastebin message that the attacks would continue until a trailer of the independent film “Innocence of Muslims,” which they said insults the prophet Mohammed, was taken off the Internet. But now, says a blog post by Mor Ahuvia, cybercrime communication specialist at security firm RSA, another wave of attacks is looming, this one aimed at stealing big money. “A cyber gang has recently communicated its plans to launch a Trojan attack spree on 30 American banks as part of a large-scale orchestrated crimeware campaign,” Ahuvia wrote. “Planned for this fall, the blitzkrieg-like series of Trojan attacks is set to be carried out by approximately 100 botmasters. RSA believes this is the making of the most substantial organized banking-Trojan operation seen to date.” RSA said the gang leadership appears to come from Russia, and plans to use a “Gozi-like Trojan” that RSA is calling Gozi Prinimalka. Prinimalka is derived from the Russian word meaning “to receive.” “According to underground chatter, the gang plans to deploy the Trojan in an effort to complete fraudulent wire transfers via Man-In-The-Middle (MiTM) manual session-hijacking scenarios,” Ahuvia wrote. “If successfully launched, the full force of this mega heist may only be felt by targeted banks in a month or two. The spree’s longevity, in turn, will depend on how fast banks and their security teams implement countermeasures against the heretofore-secret banking-Trojan,” she wrote. Brian Krebs, who writes the blog KrebsonSecurity, said in a recent post that the RSA analysis “seemed to merely scratch the surface of a larger enterprise that speaks volumes about why online attacks are becoming bolder and more brash toward Western targets.” But he also said this particular threat could be a hoax — that there is some suspicion in the cybercrime world that it could be a sting operation by Russian law enforcement, since the announcement has been so public. Krebs said the threat appears to be coming from a series of posts on Underweb forums by a Russian hacker nicknamed “vorVzakone.” His name translates to “thief-in-law,” which Krebs said, “in Russia and Eastern Europe refers to an entire subculture of elite criminal gangs that operate beyond the reach of traditional law enforcement. The term is sometimes also used to refer to a single criminal kingpin.” Krebs said vorVzakone called the campaign “Project Blitzkrieg,” and according to a translation of one of his messages, said he hopes to recruit 100 botmasters to take advantage of authentication weaknesses in U.S. bank systems before they can improve their protection. The botmasters would have to qualify with an online interview and be trained, and would then get to share in the profits. In vorVzakone’s message, he said: “The development of the system took 4 years of daily work and around $500.000 was spent. Since 2008 by using this product not less than $5m was transferred just by one team.” Jason Healey of the Atlantic Council, a cybercrime expert and former White House security official, said it sounds to him like the group is “trying to be the Russian online equivalent of Ocean’s Eleven — call it Ocean’s Odinnadsat’ — or a group that wants to be seen in that light. They can get some cool points, either way.” Most security experts say the financial sector is the best prepared of any in the U.S. to deal with direct attacks. But these attacks will, of course, not be aimed directly at the banks, but at their customers. And vorVzakone also wrote that the operation will flood cyberheist victim phone lines while the victims are being robbed, in an effort to prevent account holders from receiving confirmation calls or text messages from their banks.” In an interview, Brian Krebs said cyber thieves, “almost always target the line of least resistance, and that is the customer. That doesn’t excuse the banks from their obligation to be constantly upgrading their defenses against such attacks. There are thousands of financial institutions in the U.S. and many of them are woefully behind in updating their customer-facing security measures.” He noted that banking law does not protect commercial and business customers at the same level as individual customers, and said banks need to do much better at flagging abnormal transaction behavior, such as, “a sudden addition of many new employees to an organization’s payroll, particularly if those people are spread all over the country geographically.” “You’d be amazed at how many times a month some bank lets this happen, and with disastrous results,” Krebs said. Still, if vorVzakone and his presumed colleagues are serious about their plan, why broadcast it so blatantly? Is that an indication that the whole thing may be a fraud? Krebs said there is reason for skepticism, noting in his blog post that vorVzakone even posted a homemade movie on YouTube, in which he. “introduces himself as ‘Sergey,’ the stocky bald guy in the sunglasses. He also introduces a hacker who needs little introduction in the Russian underground — a well-known individual who used the nickname ‘NSD.’” Krebs then quotes one Russian expert saying vorVzakone’s “language and demeanor is that of street corner drug dealer or a night club bouncer,” not someone who can organize and run a sophisticated cyberheist operation. Krebs himself is not quite as harsh, but said such projects “are announced all the time on the underground, but usually they are in fairly closed, secretive forums. The forums on which this project was announced were moderately secret, but it’s fairly unusual for miscreants to create YouTube videos of such projects and to promote them so openly.” Healey said the public bragging is a mistake. “To succeed with a Trojan, you want it to be somewhat secret with few people involved,” he said. “The few who are involved should be well known and trustworthy. That is the opposite of what Ocean’s Odinnadsat’ has done.” He said that and the fact that they are recruiting people who may be unknown to them “makes it more likely that the intel and threat companies, and law enforcement, can get the code beforehand.” Another problem that could undermine the operation is simple organizational weaknesses. “My sense is that such a project would require a decent amount of operational cohesion and security, and cooperation,” Krebs said. “From what I’ve seen of the underground, the more people you involve in a scheme, the more likely it is to fall apart.” But he said whether this threat is real or not, the need for protection is crucial. The best way for customers to avoid theft is to prevent their computer from being infected. “The trouble is,” Krebs said. “It’s becoming increasingly difficult to tell when a system is or is not infected. That’s why I advocate the use of a Live CD approach to online banking. That way, even if the underlying hard drive is infected with a remote-access, password stealing Trojan like Gozi, your online banking session is protected.” Source: http://www.networkworld.com/news/2012/101012-us-banks-warned-of-another-263227.html?page=1

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U.S. banks warned of another Distributed Denial of Service ‘DDoS’ attack

Proxy service users download malware, unknowingly join botnet

In yet another example of if-it's-too-good-to-be-true-it-probably-isn't, hundreds of thousands of users signing up for a cheap and supposedly legitimate proxy service have ended up downloading malware…

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Proxy service users download malware, unknowingly join botnet