Tag Archives: ddos-attacks

Protect your apache server from WordPress Pingback DDoS attacks

A security researcher at SANS Technology Institute put out an advisory around 8 months ago when he discovered that WordPress’s “pingback” functionality contains an exploit allowing it to request a result from any server that an attacker wishes. This vulnerability means that there are thousands of WordPress installations that can be effectively weaponized to conduct floods against any target site of someone’s desire. This particular attack is dangerous because many servers can be overwhelmed with only 200 blogs “pingbacking” their site, clogging up their limited connections and/or resources. To confirm if you are under wordpress pingback ddos attack, check your access logs. $ sudo tail -f /var/log/apache2/access.log Logs will look like this: 74.86.132.186 – – [09/Mar/2014:11:05:27 -0400] “GET /?4137049=6431829 HTTP/1.0? 403 0 “-” “ WordPress /3.8; http://www.mtbgearreview.com” 143.95.250.71 – – [09/Mar/2014:11:05:27 -0400] “GET /?4758117=5073922 HTTP/1.0? 403 0 “-” “ WordPress /4.4; http://i-cttech.net” 217.160.253.21 – – [09/Mar/2014:11:05:27 -0400] “GET /?7190851=6824134 HTTP/1.0? 403 0 “-” “ WordPress /3.8.1; http://www.intoxzone.fr” 193.197.34.216 – – [09/Mar/2014:11:05:27 -0400] “GET /?3162504=9747583 HTTP/1.0? 403 0 “-” “ WordPress /2.9.2; http://www.verwaltungmodern.de” To block wordpress pingback attack in Apache use this configuration. $ sudo nano /etc/apache2/apache2.conf         Options -Indexes         AllowOverride All         Require all granted         BrowserMatchNoCase WordPress wordpress_ping         BrowserMatchNoCase WordPress wordpress_ping         Order Deny,Allow         Deny from env=wordpress_ping Source: https://sherwinrobles.blogspot.ca/2016/05/protect-your-apache-server-wordpress.html

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Protect your apache server from WordPress Pingback DDoS attacks

New Jaku Botnet Already Has 19,000 Zombies, Ideal for Spam and DDoS Attacks

Group has ties to the Darkhotel APT attacks Security researchers from Forcepoint say that a new botnet has slowly risen and grown to contain over 19,000 zombies all over the world, but predominantly in Asian countries. Named Jaku ( Star Wars reference alert — Jakku ), the botnet has made most of its victims in countries such as Japan and South Korea, which count 73 percent of all infections. Nevertheless, security experts claim they detected infections with Jaku’s malware in 134 different countries, even if sometimes they comprised one or two users. Jaku is one of the most sophisticated and resilient botnets around Researchers say that first signs of the botnet appeared last September, and in a six-month timeframe, Jaku grew tremendously compared to other similar threats. The group behind Jaku controls the botnet through multiple C&C (command-and-control) servers, most of which are located in countries in the APAC region, such as Singapore, Malaysia, and Thailand. In ordered to stay hidden from sight, the Jaku group deployed three different C&C mechanisms but also used obfuscated SQLite databases on the client-side to store configuration files. The Jaku botnet can be used to deliver spam, to launch DDoS attacks, but also to implement other types of malware. This second-stage delivery process occurs with the help of steganography, which crooks use to bundle their malicious code inside image files. Jaku infects users via poisoned torrent files Forcepoint says that infections usually takes place via malware-laced files shared via BitTorrent. The group usually goes after high-value targets but doesn’t mind if other users are infected as well. Security researchers say the group has shown interest in international Non-Governmental Organizations (NGOs), engineering companies, academic institutions, scientists and government employees. “The Jaku campaign has clear connections with the TTPs used by the threat actors discussed by Kaspersky in the Darkhotel investigations from November 2014,” Forcepoint researchers point out. The Darkhotel group was later known as Dark Seoul , and has recently been connected to hackers in North Korea, part of the Lazarus Group . Source: http://news.softpedia.com/news/new-jaku-botnet-already-has-19-000-zombies-ideal-for-spam-and-ddos-attacks-503689.shtml

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New Jaku Botnet Already Has 19,000 Zombies, Ideal for Spam and DDoS Attacks

Anonymous Target Bank of Greece Website with Massive DDoS Attack

Anonymous shut down the bank of Greece website in a powerful DDoS attack — Vows to target more banks against financial corruption. The online hacktivist Anonymous recently relaunched operation OpIcarus directed towards banking sector in Europe and the United States — The first bank coming under the fire is the Bank of Greece who had their website under a series of distributed denial-of-service attacks ( DDoS ) forcing the servers to remain offline for more than 6 hours. OpIcarus is all about targeting banking and financial giants Anonymous’ Operation OpIcarus was launched in January 2016 and restarted in March 2016. The hacktivists behind the operation believe banks and financial giants are involved in corruption and to register their protest they had to take the war to a next level. In an exclusive conversation with one of the hacktivists behind the Greek bank DDoS attack, HackRead was told that: “The greek central bank has been offline all day. we would like all banks out there to know that unless they hold themselves accountable for their crimes against humanity that we will strike a new bank every single day and punish them #OpIcarus.” Source: https://www.hackread.com/anonymous-ddos-attack-bank-greece-website-down/ The hacktivists also released a YouTbe video revealing the reason and a list of banking websites that will be targeted. The list includes banking and financial institutions in Brazil, Bangladesh, China, USA, UK, Pakistan, Iran and several other countries.

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Anonymous Target Bank of Greece Website with Massive DDoS Attack

The rising cost of DDoS

Data centers may be more reliable, but failures due to malicious attacks are increasing. Their cost is also rising, says Michael Kassner Some cost accountants would cringe at his methodology, but after a 2013 DDoS attack on Amazon, Network World journalist Brandon Butler took a simple route to come up with an attention-grabbing headline: “Amazon.com suffers outage – nearly $5M down the drain?” Did Amazon really lose this much money? Or did it lose more? Butler worked backward from the company’s reported quarterly earnings: “Amazon.com’s latest (2013) earnings report shows the company makes about $10.8 billion per quarter, or about $118 million per day and $4.9 million per hour.”  The DDoS outage lasted nearly an hour, hence the almost $5 million figure. That is a truly staggering amount to lose in one hour of unplanned maliciously-caused downtime. And Butler’s methodology seems logical on the surface. But could we get a more accurate idea of the actual cost? The Ponemon way of estimating If the Ponemon Institute is known for anything, it is the company’s diligence in providing accurate accounting of issues on the company’s radar – in particular security issues. Its areas of interest happen to include the cost of data center outages, which it covers in a regular report series. The executive summary of the latest, January 2016, report says: “Previously published in 2010 and 2013, the purpose of this third study is to continue to analyze the cost behavior of unplanned data center outages. According to our new study, the average cost of a data center outage has steadily increased from $505,502 in 2010 to $740,357 today (or a 38 percent net change).” To reach those conclusions the Ponemon researchers surveyed organizations in various industry sectors (63 data centers) that experienced an unplanned data center outage during 2015. Survey participants held positions in the following categories: Facility management Data center management IT operations and security management IT compliance and audit The Ponemon researchers used something called activity-based costing to come up with their results. Harold Averkamp at AccountingCoach.com describes activity-based costing as follows: “Activity-based costing assigns manufacturing overhead costs to products in a more logical manner than the traditional approach of simply allocating costs on the basis of machine hours. Activity-based costing first assigns costs to the activities that are the real cause of the overhead. It then assigns the cost of those activities only to the products that are actually demanding the activities.” Following Averkamp’s definition, Ponemon analysts came up with nine core process-related activities that drive expenditures associated with a company’s response to a data outage (see Box). It’s a detailed list, and includes lost opportunity costs. Key findings The research report goes into some excruciating detail, and significant real information can be gleaned from the survey’s key findings. For example, the maximum cost of a data center outage has more than doubled since Ponemon Institute started keeping track, from $1 million in 2010 to more than $2.4 million in 2016. Overall outage costs Source: Ponemon Institute “Both mean and median costs increased since 2010 with net changes of 38 and 24 percent respectively,” says the report. “Even though the minimum data center outage cost decreased between 2013 and 2016, this statistic increased significantly over six years, with a net change of 58 percent.” The report also found that costs varied according to the kind of interruption, with more complexity equalling more cost. “The cost associated with business disruption, which includes reputation damages and customer churn, represents the most expensive cost category,” states the report. The least expensive costs, the report says involve “the engagement of third parties such as consultants to aid in the resolution of the incident.” The Ponemon report looked at 16 different industries, and the financial services sector took top honors with nearly a million dollars in costs per outage. The public sector had the lowest cost per outage at just under $500,000 per outage. Primary causes of outages Source: Ponemon Institute Next, the Ponemon team looked at the primary cause of outages. UPS system failure topped the list, with 25 percent of the companies surveyed citing it. Twenty-two percent selected accidental or human error and cyber attack as the primary root causes of the outage. Something of note is that all root causes, except cyber crime, are becoming less of an issue, whereas cybercrime represents more than a 160 percent increase since 2010. One more tidbit from the key findings: complete unplanned outages, on average, last 66 minutes longer than partial outages. The Ponemon researchers did not determine the cost of an outage per hour; deciding to look at the price per outage and per minute, and how those numbers have changed over the three survey periods. The cost per outage results are considerably less than that reported for the Amazon incident, but an average of $9,000 per minute or $540,000 per hour is still significant enough to make any CFO take note. DDoS is not going away Data centers can only increase in importance, according to the Ponemon analysts, due in large part to cloud computing (30 percent CAGR between 2013 and 2018) and the IoT market (expected to reach 1.7 trillion dollars by 2020). “These developments mean more data is flowing across the internet and through data centers—and more opportunities for businesses to use technology to grow revenue and improve business performance,” write the report’s authors. “The data center will be central to leveraging those opportunities.” An interesting point made by the report is how costs continue to rise and the reasons for data center downtime today are mostly not that different from six years ago. The one exception is the rapid and apparently unstoppable growth in cyber attacks. The report authors are concerned about this very large increase in cyber attack outages, and they make a stark warning that the problem is not going away soon.   Components of cost: Detection cost Activities associated with the initial discovery and subsequent investigation of an outage incident. Containment cost Activities and associated costs that allow a company to prevent an outage from spreading, worsening, or causing greater disruption. Recovery cost Activities and associated costs related to bringing the organization’s networks and core systems back to normal operation. Ex-post response cost All after-the-fact incidental costs associated with business disruption and recovery. Equipment cost The cost of equipment, new purchases, repairs, and refurbishment. IT productivity loss The lost time and expenses associated with IT personnel downtime. USER productivity loss The lost time and expenses associated with end-user downtime. Third-party cost The cost of contractors, consultants, auditors, and other specialists engaged to help resolve unplanned outages. Lost revenues Total revenue loss from customers and potential customers because of their inability to access core systems during the outage. Business disruption Total economic loss of the outage, including reputational damages, customer churn, and lost business opportunities. Source: http://www.datacenterdynamics.com/security-risk/the-rising-cost-of-ddos/96060.article http://www.datacenterdynamics.com/magazine

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The rising cost of DDoS

Businesses pay $100,000 to DDoS extortionists who never DDoS anyone

In less than two months, online businesses have paid more than $100,000 to scammers who set up a fake distributed denial-of-service gang that has yet to launch a single attack. The charlatans sent businesses around the globe extortion e-mails threatening debilitating DDoS attacks unless the recipients paid as much as $23,000 by Bitcoin in protection money, according to a blog post published Monday by CloudFlare, a service that helps protect businesses from such attacks. Stealing the name of an established gang that was well known for waging such extortion rackets, the scammers called themselves the Armada Collective. “If you don’t pay by [date], attack will start, yours service going down permanently price to stop will increase to increase to 20 BTC and will go up 10 BTC for every day of the attack,” the typical demand stated. “This is not a joke.” Except that it was. CloudFlare compared notes with other DDoS mitigation services and none of them could find a single instance of the group acting on its threat. CloudFlare also pointed out that the group asked multiple victims to send precisely the same payment amounts to the same Bitcoin addresses, a lapse that would make it impossible to know which recipients paid the blood money and which ones didn’t. Despite the easily spotted ruse, many businesses appear to have fallen for the scam. According to a security analyst contacted by CloudFlare, Armada Collective Bitcoin addresses have received more than $100,000. “The extortion emails encourage targeted victims to Google for the Armada Collective,” CloudFlare CEO Matthew Prince wrote. “I’m hopeful this article will start appearing near the top of search results and help organizations act more rationally when they receive such a threat.” Source: http://arstechnica.com/security/2016/04/businesses-pay-100000-to-ddos-extortionists-who-never-ddos-anyone/

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Businesses pay $100,000 to DDoS extortionists who never DDoS anyone

KKK Website Shut Down by Anonymous Ghost Squad’s DDoS Attack

Anonymous Ghost Squad’s DDoS Attack Closes Down KKK Website The Anonymous vs. Ku Klux Klan (KKK) cyber war is well known to all of us. In continuation of that war, Anonymous affiliate Ghost Squad brought down one of major website belonging to the KKK members. In a series of powerful distributed denial-of-service (DDoS) attacks just a few hours ago, Anonymous has shut down the official website of Loyal White Knights of the Ku Klux Klan (KKK). Ghost Squad, the group said to be behind this attack works with the online hacktivist Anonymous. The reason for attacking the KKK is the “blunt racism” in the name of free speech. In an exclusive conversation with one of the attackers, HackRead was told that: “We targeted the KKK due to our hackers being up in their face, we believe in free speech but their form of beliefs is monolithic and evil. We stand for constitutional rights but they want anyone who is not Caucasian removed from earth so we targeted the KKK official website to show love for our boots on the ground and to send a message that all forms of corruption will be fought. We are not fascist but we certainly do not agree with the KKK movement. They are the Fascists and they are the Racists.” An error message “The kkkknights.com page isn’t working” is displayed for those visiting the website. KKK has not for the first time come under attacks by Anonymous. Earlier, the hacktivists disclosed personal information of KKK members. In October 2015, the group also carried out DDoS attacks on KKK’s website, as one of the Klan members apparently harassed a woman on Twitter. This is not it. In 2014, the official website of a Mississippi-based white supremacist organization “The Nationalist Movement” (nationalist.org) was also spoiled with messages like “Good night white pride.” The KKK Knights website is still offline across the world as shown in the screenshot below: Source: http://www.techworm.net/2016/04/kkk-website-shut-anonymous-ghost-squads-ddos-attack.html

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KKK Website Shut Down by Anonymous Ghost Squad’s DDoS Attack

Anonymous Launches DDoS attacks Against Denver Police Website Against Fatal Shooting

Anonymous NWH targets Denver police department domain with DDoS attack to register protest against the fatal shooting of 39-year-old Dion Avila An Anonymous-linked team of attackers called New World Hacking  (NWH)   has conducted a series of powerful distributed denial-of-service ( DDoS ) attacks on Denver city, county and police website earlier today forcing the site to go offline — The reason for targeting the site was last week’s (Tuesday 14th April)   police shooting in which Dion Avila Damon was allegedly killed inside his parked car near the Denver Art Museum. In an exclusive conversation with two of the NWH attackers (Sad Prophet and SinfulHazeCE) behind this attack, HackRead told that: “We see how Denver police don’t care so if they don’t care about killing and innocent; we don’t care about continuous attacks on Denver.” The attackers also hint for a database leak within a week or so depending on the response from Denver police department. However, Fox news reported that Police is investigating an officer-involved in the shooting. 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 . At the time of publishing this article, the Denver police department website was down. Source: https://www.hackread.com/anonymous-shut-denver-police-website/    

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Anonymous Launches DDoS attacks Against Denver Police Website Against Fatal Shooting

Hacker Faces 10 Years for DDoS Attacks and Sex Toy Pranks in DOJ Crackdown

A nonymous’s repeated attacks on Donald Trump since December of 2015 have made hacker harassment a part of everyday conversation. Today, the United States Department of Justice handed down a sentence to a member of the Electronik Tribulation Army (ETA) that shows just how severe the punishment for those types of hacks can be. Benjamin Earnest Nichols, a 37-year-old ETA member from Oklahoma City, pled guilty to intentionally causing damage with a distributed denial of service (DDoS) attack on mcgrewsecurity.com in 2010. Nichols hasn’t been sentenced yet, but faces a maximum of 10 years in federal prison and a $250,000 fine. It’s the DDoS attack that put Nichols in court, but the list of other things he admits to doing range from costly to downright dirty: causing $6,500 in losses to McGrew Security because of a downed website, making disparaging remarks and insulting McGrew (owner of the attacked website and security service), photoshopping images of McGrew, and sending sex toys to McGrew’s home. The exact type of sex toys were not mentioned in the U.S. Attorney’s Office press release. Regardless, it’s the type of behavior hacking groups have made a name doing. It’s also behavior that the U.S. DOJ plans on stopping. McGrew became a target of the ETA because of his role in the arrest of Jesse McGraw, the leader of the hacker group, back in 2009. McGraw was arrested after he installed malware and a remote-access program on dozens of computers at the North Central Medical Plaza in Dallas. He planned to use the medical computers for a DDoS attack on a rival hacker group, but was stopped before anything came of his tampering. He was sentenced to nine years in federal prison in 2011. It was one of the first major cybercrime sentences given, and the hacking community still mentions the decision’s importance. After McGraw’s arrest, Nichols and two other ETA members turned their eyes on McGrew. “They set up a website in my name to pose as me, and put up embarrassing content or things they though would embarrass me, including a call-to-action to buy sex toys, and fake pornographic images,” McGrew told Wired in 2010. “They harvest email addresses from the university I work at and emailed it out to those.” McGrew was a key witness against McGraw, so the FBI got involved. They raided Nichols’ home because his actions were “affecting a potential witness in an official proceeding,” the search warrant affidavit read. The search warrant lists Nichols as going by the names “thefixer25,” ”fixer,” “fix,” ”c0aX,” and “ballsdeep.” Witness intimidation is a federal crime. The ETA responded by posting the following on its website: “On the 23rd of June 2010 the Federal Bureau of Investigation issued search warrants on ETA members. All their computers and electronic devices have been taken for forensic investigation…. We are not terrorists, we are freedom fighters and cyber protesting is not illegal.” Back in 2009, when McGraw was arrested, ETA members were hyper aware of how they could be next. When Nichols was asked if he was still in the ETA in an email from another member, he responded: “Right now admissal (sic) of any kind like that is certainly what some douchebag prosecutor would like. I cannot give you that answer when you ask me outright, however.” Nichols also said that he wiped his computers. Turns out he didn’t wipe them well enough, and can look forward to big time for his hacking crimes. It’s a message from the DOJ to the hacking community that it surely won’t ignore. Source: https://www.inverse.com/article/13891-hacker-faces-10-years-for-ddos-attacks-and-sex-toy-pranks-in-doj-crack

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Hacker Faces 10 Years for DDoS Attacks and Sex Toy Pranks in DOJ Crackdown

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/

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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