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Reddit Is Targeted with a DDoS Attack

The challenge with DDoS attacks like the one that hit Reddit is separating malicious traffic from legitimate, said security analyst Alex Horan. “If you wait until the traffic hits your site to make that distinction, it is too late. You are wasting processing time and bandwidth making that determination,” he said. Reddit got a black eye this week after being hit with a distributed denial of service (DDoS) attack Friday morning. The attacks left the site dark for a while and with spotty service well into the afternoon. “Having some technical difficulties right now. We’ll be back ASAP,” the @redditstatus Twitter feed reported before sunrise on the East Coast Friday morning. About 6:30 a.m., the site noted it was “working on mitigating a malicious DDoS attack.” Within 30 minutes, the site seemed to be up and running again but some of the functions were still hurting from the fallout. The Whys and Hows Alex Horan, senior product manager at Core Security, said the important point about DDoS is the initial ‘D’ for Distributed. In other words, Reddit could not easily distinguish between legitimate traffic and attack traffic. “If you wait until the traffic hits your site to make that distinction, it is too late. You are wasting processing time and bandwidth making that determination,” he said. “You need to work with the downstream Internet providers to make that distinction as close to the source of each of the nodes participating in the attack and drop the traffic there. This, in theory, could make the whole Internet faster, as less of this malicious traffic would make it to the shared information superhighway.” Horan said understanding the motive of the attackers is useful for the general community. Of course, he added, consumers shouldn’t necessarily change our behavior because of the threat of a DDoS. “It is important to learn the whys and the hows of these attacks and attackers so we can better anticipate what actions might provoke them,” he said, “so we can be forewarned — and technically what actions they will take so we can apply the right defenses — be forearmed.” Sending a Message? Richard Westmoreland, lead security analyst for the Security Operations Group at SilverSky, said DDoS attacks are normally launched to send some form of a message and can vary greatly in terms of their sophistication. “It has been widely speculated in federal circles that due to the sheer mass and complexity of these recent attacks that they are the result of an escalating cyber war with Iran. DDoS attacks have become the preferred and paid weapon for many politically motivated groups,” Westmoreland said. “This is both a scary and positive aspect to these types of attacks. The negatives are that they are perpetrated by professionals who have the skills and resources to effectively launch these attacks, and there is little that can be done to stop them. The consolation is that these attacks are generally shorter in duration before moving on to other targets.” For protection against your eCommerce site click here . Source: http://www.sci-tech-today.com/news/Reddit-Is-Targeted-with-a-DDoS-Attack/story.xhtml?story_id=10300BI2ZXIA&full_skip=1

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Reddit Is Targeted with a DDoS Attack

iMessage DDoS attacks foreshadow a bigger threat

Over the last couple of days, a group of iOS developers has been targeted with a series of rapid-fire texts sent over Apple’s iMessage system. The messages, likely transmitted via the OS X Messages app using a simple AppleScript, rapidly fill up the Messages app on iOS or the Mac with text, forcing a user to constantly clear both notifications and messages. In some instances, the messages can be so large that they completely lock up the Messages app on iOS, constituting a ‘denial of service’ (DoS) attack of sorts, even though in this case they appear to be a prank. Obviously, if the messages are repeated an annoyingly large volume but don’t actually crash the app, they’re still limiting the use you’ll get out of the service. But if a string that’s complex enough to crash the app is sent through, that’s a more serious issue. The attacks hit at least a half-dozen iOS developer and hacker community members that we know of now, and appear to have originated with a Twitter account involved in selling UDIDs, provisioning profiles and more that facilitate in the installation of pirated App Store apps which are re-signed and distributed. The information about the source of the attacks was shared by one of the victims, iOS jailbreak tool and app developer iH8sn0w. “On Wednesday night my private iMessage handle got flooded with “Hi” and “We are anonymous” bulls**t,” iH8sn0w tells us. He immediately disabled that iMessage email and began tracking the sending email domain’s current ownership. iH8sn0w shared a proof-of-concept AppleScript with us that demonstrates just how easy it is to set up a recurring message that could saturate a person’s iMessage queue with items that would need to be cleared or read before any actions could be taken. Another iOS developer targeted, Grant Paul, shared some additional details about the attacks. “What’s happening is a simple flood: Apple doesn’t seem to limit how fast messages can be sent, so the attacker is able to send thousands of messages very quickly,” Paul says. The second part of that, he explains, is that if a user sends a ‘complex’ text message using unicode characters that force a browser to render ‘Zalgo’ text, or simply uses a message that is enormous in size, them the Messages app will eventually crash as it fails to display it properly. This will effectively ‘break’ the Messages app on iOS by forcing it to close and stop it from re-opening because it can’t render that text.” The ‘send a big message to crash the app’ method has been known for a while, as we were able to locate a month-old public posting that detailed an accidental triggering of this. The solutions involve playing around with sending a regular message, then locking the phone and activating the message notification until you’re able to time it right to delete the message thread that’s causing the problem. This is the way that Paul was able to finally delete the complex text that was causing him problems. Several of the developers we spoke to noted that multiple ‘throwaway’ emails were being used to send the spam, so while a simple ‘block’ option might work for a casual spammer, they wouldn’t work for a determined harasser. iH8sn0w notes that there is a possibility that Apple will notice these bursts of messages and block the repetitive spamming. This appears to be the only real solution as Apple does not currently allow you to block a specific iMessage sender. Once your iMessage ID is out there, you’re unable to stop people from using it. And since the latest version of iOS unifies your phone number and emails, there’s a strong possibility that if a person can ferret out your email, they can spam you with this annoying or disruptive technique. The only recourse right now is to disable that iMessage handle entirely. And if they get your phone number, it’s likely you’ll have to turn off iMessage entirely, because you can’t just change your phone number at the drop of a hat. Thankfully, this doesn’t seem to be a widespread practice, but it’s not that hard to figure out, and the only real solution will be the introduction of a block setting for Messages and better spam detection by Apple. We have informed Apple about the technique used in these cases but it has not responded with more information. We will update the article if it does so. Source: http://thenextweb.com/apple/2013/03/29/imessage-denial-of-service-prank-spams-users-rapidly-with-messages-crashes-ios-messages-app/

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iMessage DDoS attacks foreshadow a bigger threat

Anti-spam Spamhaus up again after 75Gbps Distributed Denial of Service (DDoS) Attacks

The website of non-profit spam fighter Spamhaus is online again after a huge DDoS attack knocked it offline on Sunday, but attackers are continue to target another anti-spam sites that help ISPs combat spam from infected IP addresses. Spamhaus, which provides several anti-spam DNS-based blocklists and maintains the “register of known spam operations”, came under a huge DDoS attack on Sunday, which knocked its web server and mail server offline until Wednesday. Spamhaus spokesperson Luc Rossini on Monday denied a report that Anonymous was behind the attack and pointed to a “Russian criminal malware gang” as the source. On Tuesday Spamhaus sought cover from the attack with DDoS protection provider CloudFlare, which today reported the attack on Spamhaus reached a peak of about 75 gigabits per second. The attackers used a cocktail of DDoS attack methods, but the primary one that helped generate that volume of traffic was a “reflection attack”, according to Matthew Prince, CloudFlare’s CEO. “The basic technique of a DNS reflection attack is to send a request for a large DNS zone file with the source IP address spoofed to be the intended victim to a large number of open DNS resolvers,” Prince explained, noting that 30,000 open DNS resolvers were recorded in the attack, which used spoofed IP addresses CloudFlare had issued to Spamhaus. “The resolvers then respond to the request, sending the large DNS zone answer to the intended victim. The attackers’ requests themselves are only a fraction of the size of the responses, meaning the attacker can effectively amplify their attack to many times the size of the bandwidth resources they themselves control.” Source: http://www.cso.com.au/article/456917/anti-spam_spamhaus_up_again_after_75gbps_ddos_attack/

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Anti-spam Spamhaus up again after 75Gbps Distributed Denial of Service (DDoS) Attacks

Distributed Denial of Service (DDoS) attacks recovery costs an average of $3,000 per day for businesses

Organizations citing cybersecurity costs as an impediment to implementing a layered defense should rethink their priorities: Denial of service (DDoS) and malware infection recovery costs range into the thousands of dollars – per day. According to a report from Solutionary, organizations are spending a staggering amount of money in the aftermath of an attack: as much as $6,500 per hour to recover from DDoS attacks and more than $3,000 per day for up to 30 days to mitigate and recover from malware attacks. All of those third-party consultants, PR crews, incident response teams, mitigation software and other immediate investments add up, apparently. But other damages need to be considered as well: the report numbers don’t include revenue that may have been lost due to related systems downtime, or lost productivity. Nor do they include the intellectual property-related costs. “Cyber criminals are targeting organizations with advanced threats and attacks designed to siphon off valuable corporate IP and regulated information, deny online services to millions of users and damage brand reputation,” said Don Gray, chief security strategist with Solutionary. Unfortunately, the likelihood of suffering such an attack is, of course, going up. They’re also becoming focused on certain arenas. For instance, in addition to traditional network-layer attacks, a full 75% of DDoS attacks target Secure Socket Layer (SSL) protected components of web applications, the report found. The downside is that detecting and blocking attacks in encrypted protocols primarily used for legitimate traffic can be more complex than responding to historical TCP/UDP-based DDoS attacks. Malware attacks, meanwhile, are becoming vertical-specific. The report found that 80% of attempts to infect organizations with malware are directed at financial (45%) and retail (35%) organizations. These forays frequently arrive as targeted spam email, which attempts to coerce the recipient to execute an attachment or click on an infected link. Unfortunately, a full 54% of malware typically evades anti-virus detection. Only 46% of samples tested via VirusTotal by Solutionary were detected by anti-virus – indicating a clear need for companies to invest in multiple malware detection mechanisms. The report also found that Java is the most targeted software in exploit kits, replacing Adobe PDF exploits. Almost 40% of total exploits in exploit kits now target Java. When it comes to where attacks are originating, domestic IP addresses are the largest source of attacks against US organizations. “While there has been considerable discussion about foreign-based attacks against US organizations, 83% of all attacks against them originate from US IP address space, and the absolute quantity of these attacks vastly outnumbers attacks seen from any other country,” the company said. “One contributing factor is foreign attackers using compromised machines near attack targets in the US to help evade security controls. This attack localization strategy has also been observed in attacks on targets in other countries.” Attackers from other countries focus on different industry targets – 90% of all attack activity from China-based IP addresses is directed against the business services, technology and financial sectors. And a full 85% of all attack activity from Japan-based IP addresses identified by Solutionary was focused against the manufacturing industry. However, attacks targeting the financial sector appear to originate fairly evenly from attackers in many countries across the world. Attack techniques also vary significantly by country of origin. Among the top four non-US source countries, the majority of attack traffic from China is indicative of communication with already-compromised targeted devices, while Japanese and Canadian attackers appear to focus more on application exploit attempts. Attacks originating from Germany involve more botnet Command and Control (C&C) activity. For DDoS protection click here . Source: http://www.infosecurity-magazine.com/view/31247/malware-attack-recovery-costs-an-average-of-3000-per-day/

DOSarrest Rolls Out New Website Monitoring Service

VANCOUVER, Jan. 22, 2013 /CNW/ – DOSarrest Internet Security announced a new website monitoring service today called the “ DOSarrest External Monitoring Service ” or “ DEMS ”. This new service is a real-time geographically distributed system, capable of monitoring a number of website performance metrics from three different geographic regions, every 60 seconds, utilizing six different sensors. This service may be purchased as a stand-alone product but is free for all DOSarrest customers that are subscribed to DOSarrest’s industry leading DDoS protection service. DOSarrest’s CTO, Jag Bains states “This is a must have if you’re using a CDN or are hosting some high-end, mission critical websites, and it’s a perfect fit for our fully managed DDoS protection service. This combined with our existing traffic metrics gives us and our customers the best visibility in the DDoS protection services arena.” Jag Bains adds “Although there are similar types of services available from third parties, our customers can also choose to have the DOSarrest support staff investigate, pin-point and advise the customer on a plan of action, 24/7/365. No such service exists today that offers this type of customer support”. Mark Teolis, GM of DOSarrest comments. “It’s a very intuitive and elegant design. I use it myself to view the status of all of our customers’ websites. At a glance and without a click, I can tell real-time if anyone is down from six different vantage points, and can easily drill down to a specific site and timeline of events for that site. Many Content Delivery Networks do not offer such a service to their customers. Their customers would have no idea if there was an issue accessing their website in a different region of the country or globe.” More information on this service can be found at: http://www.dosarrest.com/dems About DOSarrest Internet Security: DOSarrest founded in 2007 in Vancouver, BC, Canada is one of only a couple of companies worldwide to specialize in only cloud based DDoS protection services. Their global client base includes mission critical ecommerce websites in a wide range of business segments including financial, health, media, education and government. Their innovative systems, software and exceptional service has been leading edge for over 5 years now SOURCE: DOSarrest Internet Security Limited For further information: Brian Mohammed Director of Sales and Marketing Toll free CAN/US 888 818-1344 ext. 203 Toll Free UK 0-800-635-0551 ext. 203 Mobile: 416-434-6174 www.dosarrest.com Check out our video http://www.youtube.com/watch?v=mUs0vWYEIkQ

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DOSarrest Rolls Out New Website Monitoring Service

National banking regulator advises on Distributed Denial of Service (DDoS) Attack deluge

The regulator for national banks issued an alert Friday about the apparent uptick in distributed denial-of-service (DDoS) attacks being waged against financial institutions. The note from the Office of the Comptroller of the Currency (OCC), which was addressed to the heads of national banks, federal branches and agencies, technology service providers and other related organizations, described how a recent wave of DDoS attacks are disrupting the availability of some bank websites. The spate seemed to kick off in early fall, and many top banks are still experiencing on-and-off attacks. “Each of these groups had different objectives for conducting these attacks, ranging from garnering public attention to diverting bank resources while simultaneous online attacks were underway and intended to enable fraud or steal proprietary information,” the alert said. The bulletin recommends that banks maintain a “heightened sense of awareness regarding these attacks” and ensure they are prepared to deal with them. That includes appropriating staff and third-party contractors to help thwart the attacks; implementing an incident response plan across various departments; and sharing information among affected organizations. In addition, because often the attacks target banks’ service providers, the OCC suggests that financial institutions review the response capabilities of their ISPs and web-hosting vendors. The alert also encourages banks that are sustaining a DDoS attack to remain in communication with customers, conveying any risks they face, as well as safeguards they can take. The OCC said banks should view their security in terms of risk management. But the alert also reminded institutions that they are obligated to follow the Federal Financial Institutions Examination Council (FFIEC) guidelines, which were updated in 2011 to address corporate account takeovers. Often, DDoS attacks run cover for attackers who are simultaneously logged in to victims’ bank accounts while fraudulently transferring out money from their accounts. Avivah Litan of research firm Gartner said in a blog post Friday that the alert shows the OCC is taking the threat seriously, and this will likely result in increased regulatory enforcement. “Some banks do spend enough on security – but many do not,” she wrote. “This will help ensure that all – and not just some – of the banks regulated by the OCC at least, are putting the requisite resources into defending against DDoS attacks and their attending damage.” Source: http://www.scmagazine.com/national-banking-regulator-advises-on-ddos-deluge/article/273769/

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National banking regulator advises on Distributed Denial of Service (DDoS) Attack deluge

Protecting Your Network Against Distributed Denial of Service ‘DDoS’ Attacks

As leaders in their field, IT managers are tasked with the burden of not only managing but protecting company networks. Dedicated servers can be adversely affected by DDoS attackers, as their firewalls can be penetrated and flooded with malicious communication requests. Before assessing how you can prevent DDoS attacks it is first important to understand what they are and where they come from. What Are DDoS Attacks? A DDoS attack attempts to render a network or machine inaccessible or unresponsive for any considerable length of time. DDoS attacks typically saturate a network with requests as to slow, disrupt or obstruct communication from the intended user. In some cases, a DDoS attack may overwhelm network firewalls, leaving the problem up to IP providers to fix. Typical symptoms may include the following: a high volume of spam emails, in-accessibility of websites or services or exceptionally slow network performance. Either way, a DDoS attack can adversely affect business by bringing down a website, company application or cloud based computing platform. Here are a few suggestions to go about mitigating the risk associated with DDoS attacks: Preventative Measures Against Attack Properly setup of network firewalls are a must. These days, modern firewalls can be configured to deny unusual protocols from un-identified IP addresses. For instance, if your network firewall is configured to block traffic from sources it can’t identify, it may drop any or all illegitimate service requests as to maintain a normalized bandwidth threshold. Though IP bottlenecks are not always a symptom of DDoS attacks, configuring a firewall to block traffic incoming from specific ports is a form of preventative maintenance. As stated earlier, DDoS attackers may flood a system as to render it unresponsive. Rate limiting switches detect incoming traffic and may filter or slow IPs in such a way that prevents them from flooding the system. Many switches have wide-area-networks fail overs, which adjust incoming IP filtering thresholds automatically. Again, it is important to configure these systems correctly in order for them to remain effective. If system upgrades are in order then IT managers need to weigh the cost against the risk posed by DDoS attacks. Costs To Consider Personnel Costs – If attacked, how many IT workers will it take to address and remedy the problem? Support Calls – Do you really want to be tied up on the phone calling tech support? Factor in the time spent at the help desk Lost Business – If a DDoS attack causes downtime to your website, how much revenue may be lost? Lost Customers – Investing in network protection means you are also investing in consumer confidence. How many customers may be lost due to downtime. Brand Reputation – When network outages occur, brands may suffer damage to their reputation. It is important to consider this last factor. Lastly, it is important to remember that DDoS attacks may also occur by accident. Some sites may experience a denial of service when they experience a high amount of traffic. In any case where a popular website links to a trending event, traffic may suddenly spike creating a unintentional denial of service. Focus your energies on preventing the malicious attacks and it’ll be smooth sailing for your business or enterprise. For DDoS protection against your eCommerce site click here . Source: http://www.colocationamerica.com/blog/protecting-your-network-against-ddos-attacks.htm

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Protecting Your Network Against Distributed Denial of Service ‘DDoS’ Attacks

Distributed Denial of Service ‘DDoS’ Attacks From Anonymous Cost PayPal £3.5 Million of Damage

The distributed denial of service attack (DDoS) from hacktivist Anonymous has cost PayPal more than €4.3 million . The attack which was named Operation Payback were initially aimed at companies that opposed internet piracy, but switched to companies like Mastercard, Visa and PayPal after they refused to process payments to WikiLeaks . After that attack PayPal -the global leader in online money transfer and payments has paid around £3.5 million defend and arm itself against such kind distributed denial-of-service (DDoS) attacks. In a report BBC said that more than one hundred skilled employees from eBay, PayPal’s parent company, spent almost three weeks working on DDoS-attack-related issues and that PayPal had bought software and hardware to defend itself against further attacks. In all, the total cost of this work came to £3.5 million. This details have been revealed in a court case at Southwark Crown Court where a defendant, Christopher Weatherhead (studying at Northampton University when who allegedly took part in the campaign), is facing charges of conspiring to impair the operation of computers. He has pleaded not guilty to conspiring to impair the operation of computers between 1 August 2010 and 22 January 2011. Sandip Patel , prosecuting, said the group caused PayPal “enormous economic harm” . Mr Patel said they used distributed denial of service, or DDoS, which flooded the targets computers with enormous amounts of online requests. Target websites would crash and users would be directed to a page displaying the message: “You’ve tried to bite the Anonymous hand. You angered the hive and now you are being stung.” Mr Patel said: “This case, simply put, is about hackers who used the internet to attack and disable computer systems – colloquially described as cyber-attackers or vandals.” He said Mr Weatherhead, who used the online name Nerdo, posted plans on an Internet Relay Chat (IRC) channel encouraging an attack on PayPal. He said PayPal was the victim of a series of attacks “which caused considerable damage to its reputation and loss of trade”. Source: http://www.voiceofgreyhat.com/2012/11/DDoS-Attack-From-Anonymous-Cost-PayPal-3.5-Million.html?utm_source=dlvr.it&utm_medium=identica

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Distributed Denial of Service ‘DDoS’ Attacks From Anonymous Cost PayPal £3.5 Million of Damage

Man arrested for Distributed Denial of Service ‘DDoS’ attack on Theresa May

A MAN HAS BEEN ARRESTED on suspicion of launching and promoting a denial of service attack on the website of UK Home Secretary Theresa May. The man is unnamed, but is said to be 41 years old and from Stoke on Trent, He is accused of mounting an attack on May’s website and others, and of inciting other people to participate. “The activity this morning demonstrates the commitment of the PCeU (Police Central e-Crime Unit) and our colleagues to combat cyber criminality anywhere within the UK and take action against those responsible,” said detective inspector Jason Tunn of the Metropolitan Police. “Assisting and encouraging cyber crime is a serious matter and I would advise all persons to consider their actions and any possible future consequences prior to posting any material online.” May’s website was attacked earlier this year as part of Operation Trial At Home, an Anonymous backed effort to raise awareness about ongoing extradition controversies, including those affecting Richard O’Dwyer and Gary McKinnon. Optrial At Home, as it was called on Twitter, was announced by an account called AnonopUK. “#OpTrialAtHome We will be firing our Laz0rs at GCHQ.gov.uk 8pm GMT 14th April, We invite all #Anons again to join,” it said in a tweeted message that has now apparently been deleted. That account was still sending out messages late last night. Whoever was arrested was nicked on suspicion of assisting or encouraging crime contrary to the Serious Crime Act 2007. The man has been bailed until mid-December. Source: http://www.theinquirer.net/inquirer/news/2222942/man-arrested-for-denial-of-service-attack-on-theresa-may

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Man arrested for Distributed Denial of Service ‘DDoS’ attack on Theresa May

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