The Short List of Who Protects Companies Against DDoS Attacks

Here’s a question: when was the last time you got something truly useful for free? Like that time it turned out your phone company was giving you mobile data even though it wasn’t included in the plan you selected, or that time you turned up at the car dealership for a major repair, and they informed you the cost was covered because you’re just such a great customer.

Oh right: it was never.

So why is it that so many companies seem to think somebody else is responsible for protecting them against distributed denial of service (DDoS) attacks? DDoS mitigation is an important and complex service that requires careful expertise, on-demand or always-on deployment, nearly limitless scalability and huge amounts of network bandwidth. If a company hasn’t taken the steps to invest in this kind of protection, they don’t have it.

Attack overview
A DDoS attack is a distributed denial of service attack, which is a cyberattack that uses a botnet, a network of internet-connected devices that have been hijacked for remote use, to direct large amounts of malicious traffic at a website that has been targeted. This traffic overwhelms the website, its server or its resources to take it offline or render it so frustratingly slow it can’t be used.

Distributed denial of service attacks have been a problem for websites and organizations of all sizes for over 15 years, and the problem is becoming a crisis as DDoS for hire services steadily gain popularity, and botnets steadily gain in size due to unsecured Internet of Things devices. For larger organizations, a successful DDoS attack can cost between $20,000 and $100,000 per hour, and while unquantifiable, the loss of user trust or loyalty that can result from such an attack can be even worse.

Erroneous assumptions
DDoS attacks haven’t exactly been flying under the radar lately. Their frequency, as well as the threat they pose, should be well known to anyone working in online security. Yet a recent survey by Kaspersky uncovered some staggering statistics. Thirty percent of companies surveyed indicated that they haven’t taken action against the threat of DDoS attacks because they believe they won’t be targeted, 40% believe their ISP will provide protection, and a further 30% believe data centers will provide protection. Perhaps most misguided of all, 12% believe a small amount of DDoS-caused downtime would not have a negative impact on the company.

Why ISPs won’t provide complete protection
While some ISPs do provide complete DDoS protection as an added service that clients pay good money for, most provide only partial protection. Due to the large amounts of bandwidth an ISP has available, they can do well against large volumetric attacks, but craftier application layer attacks are a problem. Also, while ISPs can be good at identifying malicious traffic, they don’t deal with that malicious traffic efficiently, meaning that while it’s struggling to deal with an influx of malicious traffic, legitimate traffic will be caught in the bottleneck with it or even discarded alongside the bad traffic, resulting in users unable to get through to the website. In other words, while a basic DDoS attack could be thwarted by an ISP, the result – users unable to access the website – ends up being the same.

Further, some DDoS attacks like the Slowloris are made up of traffic and requests that are seemingly legitimate, making them difficult to detect for even some intrusion detection systems, let alone an ISP.

Perhaps the biggest problem with relying on an ISP for protection is that regardless of what type of attack is launched, there isn’t going to be a quick response from an ISP. They aren’t built for the kind of real-time monitoring and deployment that can catch an attack within seconds. Most often, it will be several hours before an ISP begins to deal with an attack. By then, the damage is done.

Why data centers won’t provide complete protection either
There’s a caveat here: just as with ISPs, some data centers do provide complete protection against distributed denial of service attacks, but again it is an added service that definitely adds to the data center bill. Similar to ISPs, data centers do provide some measure of DDoS protection, but it can generally only protect against basic attacks that can be stopped with rate limiters, or attacks that are not directly aimed at an application service. Large or complex attacks cannot be stopped by basic data center protection.

Moreover, not only do ISPs and data centers not provide complete protection against DDoS attacks, but they also put their clients at a bigger risk of second-hand DDoS damage. If an ISP or data center is struggling with a large or complex attack, websites that weren’t targeted will nonetheless suffer the effects.

A-Z protection
Professional DDoS protection is built to provide the quickest, most proactive and most complete protection against distributed denial of service attacks. Cloud-based protection is especially excellent at protecting against both network-layer and application-layer attacks, and with the use of a scrubbing server, attack traffic will be kept from ever touching the target website while legitimate traffic is let through unfettered.

For companies after a more bang-for-their-buck solution, it may be preferable to look into a quality content delivery network (CDN). CDNs are designed to improve site speed and performance, and all CDNs offer some level of DDoS protection due to the built-in load balancing that comes from their multi-server environments. However, CDNs will also offer additional DDoS protection on top of that.

High-quality distributed denial of service protection won’t become a freebie or throw-in until the internet reaches a phase where there’s something so much worse and so much more common than DDoS attacks that they become almost after-thoughts for all the malicious cyberattackers out there. So companies can either root for that reality, or take protection into their own hands by investing in solid DDoS protection.

Source: http://www.iotevolutionworld.com/iot/articles/430637-short-list-who-protects-companies-against-ddos-attacks.htm

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Businesses blame rivals for DDoS attacks

Industrial sabotage is considered to be the most likely reason behind a distributed denial of service attack, a study has revealed

More than 40% of businesses hit by a distributed denial of service (DDoS) attack worldwide believe their competitors were behind it, research by Kaspersky Lab and B2B International has revealed.

Rival firms are considered more likely culprits than cyber criminals, which were cited as suspects by just 38% of DDoS victims on average.

Industrial sabotage is considered to be the most likely reason behind a DDoS attack, coming out higher than political conspiracy and personal vendettas against a business.

Typically, DDoS attacks target web servers and aim to make websites unavailable to users. Although no data is stolen, the interruption to the service can be costly in terms of lost business damage to reputation.

For example, a massive DDoS attack on Luxembourg’s government servers that started on 27 February 2017 reportedly lasted more than 24 hours, and affected more than a hundred websites.

The joint Kaspersky Lab, B2B International study, which polled 4,000 businesses in 25 countries, found that only 20% of DDoS victims overall blamed foreign governments and secret service organisations, with the same proportion suspecting disgruntled former employees.

Companies in Asia Pacific are the most suspicious of competitors, with 56% blaming their rivals for DDoS attacks and 28% blaming foreign governments. Personal grudges also carry more suspicion in the region too, with 33% blaming former staff.

In Western Europe, only 37% of companies suspect foul play by their competitors, with 17% blaming foreign governments.

Looking at attitudes by business size, businesses at the smaller end of the scale are more likely to suspect their rivals of staging an experienced DDoS attack.

The study found that 48% of small and medium business representatives believe this to be the case compared with only 36% of enterprises. In contrast, respondents from big companies put more blame on former employees and foreign governments.

“DDoS attacks have been a threat for many years, and are one of the most popular weapons in a cyber criminals’ arsenal,” said Russ Madley, head of B2B at Kaspersky Lab UK.

“The problem we face is that DDoS attacks can be set up cheaply and easily, from almost anyone, whether that be a competitor, a dismissed employee, socio-political protesters or just a lone wolf with a grudge.

“It’s therefore imperative that businesses find an effective way to safeguard themselves from such attacks,” he said.

Significant advances in DDoS attacks

There were significant advances in DDoS attacks in the last quarter of 2016, according to Kaspersky, with the longest DDoS attack in lasting 292 hours or 12.2 days, which set a record for 2016 and was significantly longer than the previous quarter’s maximum of 184 hours.

The last quarter of 2016 also saw the first massive DDoS attacks using the Mirai IoT (internet of things) botnet technology, including attacks on Dyn’s Domain Name System (DNS) infrastructure and on Deutsche Telekom, which knocked 900K Germans offline in November.

There were also similar attacks on internet service providers (ISPs) in Ireland, the UK and Liberia, all using IoT devices controlled by Mirai technology and partly targeting home routers in an attempt to create new botnets.

Stakeholders recognise lack of security in IoT devices

According to Kaspersky, stakeholders worldwide, in particular in the US and EU, recognise the lack of security inherent in the functional design of IoT devices and the need to set up a common IoT security ecosystem.

Kaspersky expects to see the emergence of further Mirai botnet modifications and a general increase in IoT botnet activity in 2017.

Researchers at Kaspersky Lab also believe that the DDoS attacks seen so far are just a starting point initiated by various actors to draw up IoT devices into the actors’ own botnets, test drive Mirai technology and develop attack vectors.

First, they demonstrate once again that financial services like the bitcoin trading and blockchain platforms CoinSecure of India and BTC-e of Bulgaria, or William Hill, one of Britain’s biggest betting sites, which took days to come back to full service, were at the highest risk in the fourth quarter and are likely to remain so throughout 2017.

Second, cyber criminals have learnt to manage and launch very sophisticated, carefully planned, and constantly changing multi-vector DDoS attacks adapted to the mitigation policy and capacity of the attacked organisation.

Kaspersky Lab’s analysis shows that the cybercriminals in several cases tracked in 2016 started with a combination of various attack vectors gradually checking out a bank’s network and web services to find a point of service failure. Once DDoS mitigation and other countermeasures were initiated, researchers said the attack vectors changed over a period of several days.

DDoS enters its next stage of evolution

Overall, they said these attacks show that the DDoS landscape entered the next stage of its evolution in 2016 with new technology, massive attack power, as well as highly skilled and professional cyber criminals.

However, the Kaspersky researchers note that unfortunately, this tendency has not yet found its way into the cyber security policies of many organisations that are still not ready or are unclear about the necessary investments in DDoS protection services.

Source: http://www.computerweekly.com/news/450414239/Businesses-blame-rivals-for-DDoS-attacks

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Deutsche Telekom Cyber Attack ‘Mastermind’ Arrested At London Airport

The police plan to extradite him to Germany where he could face up to ten years in prison

A 29-year-old British man suspected of being behind the cyber attack which affected 900,000 Deutsche Telekom customers has been arrested at Luton Airport.

The German telecoms giant was forced to roll out a software update in November after nearly a million of its customers across the country were either cut off, or had issues with their broadband service.

The UK’s National Crime Agency (NCA) today said it has arrested the man under charges of computer sabotage on behalf of Germany’s federal criminal police force (BKA).

Attack suspect

Cologne public prosecutor Dr Daniel Vollmert said the man is “accused of being the mastermind behind the attack”, with the police planning to extradite him to Germany where he could face up to ten years in prison

He supposedly planned to hack the Deutsche Telekom router in order to integrate in to a networked “botnet” for cyber criminal activities and prosecutors allege that he tried to sell the botnet on the dark web “attack scenarios like so-called DDoS attacks”.

At the time, Deutsche Telekom was able to mitigate the attack by instructing customers to disconnect their routers and only restart them after carrying out a software update.

Attacks such as this were extremely prevalent throughout 2016, as businesses struggled to come to terms with a growing attack surface and the increased sophistication of cyber attacks, emphasising a need for next generation security products.

DDoS attacks in particular are a serious threat to businesses. Earlier this month a suspected DDoS attack took down the Austrian Parliament website and the same type of attack was deemed responsible for an outage at Lloyds Banking Group in January that left customers unable to access online banking services for three days.

Corero Network Security warned businesses to prepare for bigger and badder DDoS attacks in 2017 and, if the first two months of the year are anything to go by, this prediction looks set to come true.

Source: http://www.silicon.co.uk/security/deutsche-telekom-attack-arrested-206020

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Blame the US, not China, for the recent surge in massive cyberattacks

The internet’s new scourge is hugely damaging global attacks that harness armies of routers, cameras, and other connected gadgets—the so-called Internet of Things (IoT)—to direct floods of traffic that can take down swaths of the network.

The blame so far has largely fallen on the Chinese manufacturers who churn out devices with shoddy security on the cheap. But all those devices have to be plugged in somewhere for them to used maliciously. And American consumers are increasingly the ones plugging them in.

1

Nearly a quarter of the internet addresses behind these distributed denial-of-service, or DDoS, attacks are located in the United States, newresearch from network services firm Akamai has found. Some 180,000 US IP addresses took part in DDoS attacks in the last quarter of 2016, it found—more than four times as many as addresses originating in China.

Akamai’s findings are particularly notable because the armies of hacked devices that carry out DDoS attacks—such as those controlled by the Mirai malware—don’t bother covering their tracks. That means the IP addresses are far more likely to genuinely correspond to a location within a certain country, the report’s authors write.

The findings also end an era of Chinese dominance in DDoS attacks. Over the previous year, China has accounted for the highest proportion of IP addresses taking part in such attacks globally. Now the US is the clear leader, accounting for 24% of such addresses. The UK and Germany are a distant second and third. (To be clear, though, wherever the attacking devices’ IP addresses are, the person controlling them could be located anywhere.)

2

The huge number of devices taking part in DDoS attacks in the US means regulation there, and in Europe, could stem the flood of damaging traffic. Of course, IoT regulation is a thorny issue—essentially, no US federal agency really wants to take the problem on—and there remain technical questions over how to actually go about blocking the attacks. Still, it’s a lot clearer now that simply pointing the finger at China isn’t enough.

Source: https://qz.com/912419/akamai-akam-report-a-quarter-of-ddos-ip-addresses-are-now-from-the-us/

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University suffers DDoS attack after it’s schooled by own IoT devices

Infected vending machines and light bulbs teach establishment a lesson.

A PLACE WHERE late stage teenagers go to drink and make arses of themselves has fallen victim to a denial of service (DDoS) attack of, essentially, it’s own making.

Yeah, we are talking about a university. We do not know what university it is, but Verizon’s breach report for 2016 tells us that the mysterious educational establishment, probably in the US, was taken to its knees by a DDoS attack that was brought about by its own bloody Internet of Things (IoT) devices.

It’s kinda like that Mirai thing, but on a much smaller, and more personally embarrassingly scale. We like to imagine that a connected toaster and a connected fridge had a fallout and that everything when bits up.

According to Bleeping Computer, which has had a cheeky look at the Verizon report, it was a bit more pedestrian than that.

“The DDoS attack was caused by an unnamed IoT malware strain that connected to the university’s smart devices, changed their default password, and then launched brute-force attacks to guess the admin credentials of nearby devices,” Verizon says as it explained that something fishy went down.

“Hacked devices would start an abnormally high level of DNS lookups that flooded the university’s DNS server, which in turn resulted in the server dropping many DNS requests, including legitimate student traffic. The university’s IT team said that many of these rogue DNS requests were related to seafood-related domains.”

The university has placed all IoT devices, such as light bulbs and vending machines, on its separate subnet, or perhaps in a bin. The security industry reckons that this is a signal of the kind of unprotected troubles to come. Naturally.

“On the surface this appears to be more of a prank than a sophisticated denial of service attack. However, proving that largescale IoT takeovers are possible should be a wakeup call to those who manage networks rife with unsecure IoT devices,” said Stephen Gates, chief research intelligence analyst at NSFOCUS by way of introduction.

“Municipal, Industrial, Commercial, and now Educational infrastructures are becoming more and more vulnerable, because organisations often carelessly deploy IoT without understanding the ramifications of weak IoT security.

“In this case the damage appears to be limited, and only inconvenienced users on a campus network.  Do the same to a transportation system, a chemical plant, a hospital complex, an E911 system, or an ISP, and the damage could be much, much greater.”

Source: http://www.theinquirer.net/inquirer/news/3004579/university-suffers-ddos-attack-after-its-schooled-by-own-iot-devices#

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The next generation of cyber attacks — PDoS, TDoS, and others

2016 was a landmark year in cyber security. The cyber landscape was rocked as Internet of Things (IoT) threats became a reality and unleashed the first 1TB DDoS attacks — the largest in history.

Security experts had long warned of the potential of IoT attacks, and a number of other predictions also came true; Advanced Persistent Denial of Service (APDoS) attacks became standard, ransom attacks continued to grow and evolve and data protection agreements dominated privacy debates. So what’s coming in 2017?

An attack type that has been largely ignored that could prove to be key in a major cyber attack is the Permanent Denial of Service (PDoS) attack. This attack type is unique as rather than collecting data or providing some on-going nefarious function its only aim is to completely prevent its target’s device from functioning.

PDoS, or Phlashing

PDoS, also known as “phlashing”, often damages its target to such an extent that replacement or reinstallation of hardware is usually required. Although the attack type itself has been around for some time now, but it’s easy to imagine how much damage they could do it today’s connected world, and therefore it could quickly gain momentum in 2017.

For example, one method PDoS leverages to accomplish its damage is remote or physical administration on the management interface of the victim’s hardware, such as routers, printers, or other networking hardware. In the case of firmware attacks, the attacker may use vulnerabilities to replace a device’s basic software with a modified, corrupt, or defective firmware image. This “bricks” the device, rendering it unusable for its original purpose until it can be repaired or replaced. Other attacks include overloading the battery or power systems.

We’ve already seen the potential harm that a PDoS attack could cause, when in November last year an attack on residential apartments in Finland targeted the building management system. The attack took the system offline by blocking its Internet connection, causing it to keep rebooting itself in order to reconnect. As a result, the system was unable to supply heating at a time when temperatures were below freezing. Fortunately, the facilities service company were able to relocate residents while the system was brought back online.

You only have to consider devices like Samsung’s Note 7 to see the safety hazards that the devices we all carry around with us can potentially harbor. There have been numerous test cases of malware and bots overheating devices, causing them to physically distort or worse. These attacks, bundled into a cyber attack, could have devastating and lasting effects beyond what we commonly think about in the world of the “nuisance” DDoS attack.

Another attack type that has flown under the radar is Telephony Denial of Service (TDoS). This attack type will likely rise in sophistication and become a key tool in cyber attackers’ arsenals, particularly those who are more interested in wreaking havoc than having financial gain as a motivator.

The rise of the Darknet

Just imagine an attacker with the ability to cut off communications during a crisis period. This would hinder first responders, exacerbate suffering and in some situations it could potentially increase loss of life. A physical attack, such as a terror attack, followed by a targeted TDoS attack on communication systems could be devastating.

Like PDoS, TDoS has been around for some time but again, as we depend more and more on these connected systems the impact of a targeted attack becomes magnified.

One prediction that has come true in the past few years is the rise of the Darknet. However, in 2017 it could go a step further and become a mainstream tool that almost anyone can use to launch attacks or manipulate data.

The Darknet offers easy and affordable access to attacks that can terrorize or otherwise alter someone’s personal details for financial or other benefits. The scope of the Darknet is also reaching further than ever thanks to the huge increase in connected devices that the general public has at their disposal.

Examples include the ability to rent compromised surveillance systems, access to legal information including lawyers’ emails and the ability to view and manipulate medical or educational records.

2017 could see a frightening scenario develop where the definitive source of who we are and how our details are recorded and accessed is unknown. Just imagine being in a job interview and your CV doesn’t match your online school records. Who will the potential employer trust?

This analogy can be extended to numerous scenarios, but the common thread is that your online records require high security and fidelity in order for you to function properly in society. In light of that, one of the single most personalized acts of terror that can occur is a wide-scale loss, alteration or deletion of records — with no reconstitution capability. This should strike fear in us all.

Source: https://betanews.com/2017/02/09/the-next-generation-of-cyber-attacks-pdos-tdos-and-others/

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Activists plan DDoS attack on the White House website during Trump’s inauguration

A software engineer is calling for protesters to flood the site with traffic during the presidential inauguration

It’s almost time. Ex-reality TV host and businessman Donald Trump will be officially sworn in as the US president on Friday January 20. His campaign was divisive, to say the least, and it seems his tenure as president is looking like having a bumpy start, with protests planned in all states of the US, including on the streets of Washington DC.

However, rather than stand outside, some protestors are choosing to target the President-elect with other, indoor-based, means. Software engineer, Juan Soberanis, is calling on protestors to attempt to take down the White House’s website in a DDoS attack – simply by flooding the website with traffic. Soberanis is calling it “Occupy White House”.

According to the International Business Times, Soberanis wrote on his online protest pledge: “”If you can’t make it to Washington DC on inauguration day to protest Trump’s presidency, you can still fight for the cause by helping to take down whitehouse.gov as a show of solidarity for the lives impacted by Trump’s policy agenda.

“It’s simple. By overloading the site with visitors, we will be able to demonstrate the will of the American people,” he continued.

Soberanis then goes on to tell fellow protestors to overwhelm the website by setting up auto-refresh on the WhiteHouse.gov homepage throughout the day.

The San-Francisco engineer is the creator of Protester.io, a Kickstarter-type site that encourages individuals to get involved in online protests. However, only one protest is currently live on the site, a finished protest set up by Soberanis to incite people to join the ACLU as a protest against Trump. The alleged URL for his Occupy White House protest page on the site appears to be inaccessible at the moment.

Hacking group Anonymous is additionally, and allegedly, planning cyber attacks against Trump’s new administration.

It should be noted, though, that this type of attack is considered criminal activity in the US under the Computer Fraud and Abuse Act. The act dictates that sending a command to a protected computer with the intent to cause damage can be judged a criminal offence, and people affiliated with Anonymous have been charged in the past by the US government for launching DDoS attacks on government entities and trade groups.

Screen Shot 2017-01-19 at 14.38.54

Thousands of people are planning to protest Trump’s inauguration on January 20

As well as being a controversial choice for president, Trump’s inauguration is set to be a controversial affair, too. The likes of Cher, Chelsea Handler and Katy Perry have promised to take part in the Women’s March, either in the capital or in the states around, the day after the inauguration, to protest the Republican party’s threats to defund Planned Parenthood.

According to Google, the statewide searches for “inauguration protest” are much higher than “attend inauguration” searches on the site. During the transition from Obama stepping down and Trump stepping up, “Russia” has been one of the top searched-for big issuesin the States on Google, alongside immigration and Obamacare.

Source: http://www.wired.co.uk/article/donald-trump-inauguration-ddos-attack-planned

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Dark DDoS: hacker tools and techniques – the challenges faced

In 2017 has the cyber landscape changed? What are the objectives of hackers? What are their methods? The variety of attacks used has increased, so how can you mitigate the risk?

Hackers can have many different possible objectives. For instance, they may aim to interrupt business, corrupt data, steal information – or even all of these at the same time.

To reach their goals, they continuously look for any vulnerability – and will use any vulnerability – to attack. They’re getting increasingly smarter and always looking for more, faster and easier ways to strike.

Furthermore, their attacks are no longer designed simply to deny service but to deny security. The initial service denial attack is often used as a camouflage to mask further – and potentially more sinister – activities.

These include data theft, network infiltration, data exfiltration, networks being mapped for vulnerabilities, and a whole host of other potential risks.

These types of attacks are often referred to as ‘Dark DDoS’ because of initial smokescreen attack which acts to distract organisations from the real breach that’s taking place.

In a large proportion of recent data breaches, DDoS (distributed denial of service attacks) have been occurring simultaneously – as a component of a wider strategy – meaning hackers are utilising this technique in a significant way.

According to a report by SurfWatch Labs, DDoS attacks rose 162% in 2016. SurfWatch Labs claims this is due to the increasing use of IoT devices and the attacks on the KrebsOnSecurity.com and on domain name provider, Dyn – believed to be some of the biggest DDoS attacks ever recorded.

Last year, France was also hit by one of the largest DDoS attacks when hosting company, OVH, was targeted through 174,000 connected cameras.

Today’s hackers have developed a high variety of DNS attacks that fall into three main categories:

Volumetric DoS attacks

An attempt to overwhelm the DNS server by flooding it with a very high number of requests from one or multiple sources, leading to degradation or unavailability of the service.

Stealth/slow drip DoS attacks

Low-volume of specific DNS requests causing capacity exhaustion of outgoing query processing, leading to degradation or unavailability of the service.

Exploits

Attacks exploiting bugs and/or flaws in DNS services, protocol or on operating systems running DNS services.

Often DNS threats are geared towards a specific DNS function (cache, recursive & authoritative), with precise damage objectives.

This aspect must be integrated into the DNS security strategy to develop an in-depth defence solution, ensuring comprehensive attack protection.

The list below of the most common attacks aims to emphasise the diversity of the threats and details the extent of the attack surfaces:

Volumetric attacks

Direct DNS attacks

Flooding of DNS servers with direct requests, causing saturation of cache, recursion or authoritative functions. This attack is usually sent from a spoofed IP address.

DNS amplification

DNS requests generating an amplified response to overwhelm the victim’s servers with very large traffic.

DNS reflection

Attacks using numerous distributed open resolver servers on the Internet to flood victim’s authoritative servers (usually combined with amplification attacks).

NXDOMAIN

Flooding of the DNS servers with non-existing domains requests, implying recursive function saturation.

Stealth/slow drip DoS attacks

Sloth domain attacks

Attacks using queries sent to hacker’s authoritative domain that very slowly answers requests – just before the time out, to cause victim’s recursive server capacity exhaustion.

Phantom domain attack

Attacks targeting DNS resolvers by sending them sub-domains for which the domain server is unreachable, causing saturation of cache server capacity.

Random subdomain attack (RQName)

Attacks using random query name, causing saturation of victim’s authoritative domain and recursive server capacity.

Exploits

Zero-Day vulnerability

Zero-day attacks take advantage of DNS security holes for which no solution is currently available.

DNS-based exploits

Attacks exploiting bugs and/or flaws in DNS services, protocol or on operating systems running DNS services.

DNS tunnelling

The DNS protocol is used to encapsulate data in order to remotely control malware or/and the exfiltration of data.

Protocol anomalies

DNS Attacks based on malformed queries, intending to crash the service.

DNS cache poisoning

Attacks introducing data into a DNS resolver’s cache, causing the name server to return an incorrect IP address and diverting traffic to the attacker’s computer.

The DNS landscape security is continuously moving and DNS attacks are becoming more and more sophisticated, combining multiple attack vectors at the same time.

Today’s DDoS attacks are almost unrecognisable from the simple volumetric attacks that gave the technique its name. In 2017, they have the power to wreak significant damage – as all those affected by the Dyn breach last year will testify – they are far more sophisticated, deceptive and frequent.

To keep ahead of these threats, today’s security solutions must continuously protect against a family of attacks rather than a limited list of predefined attacks that must be frequently updated or tuned.

Source: http://www.information-age.com/securing-website-content-management-system-123463910/

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DDoS attack and measures to Fight DDoS attack

White hats are in an ongoing battle with black hats for protecting the Internet from DDoS attacks. According to Abhor Network, more than 2000 daily DDoS attacks are observed worldwide.

In 2016, we saw the largest DDoS attack till date on Dyn (a DNS provider). During the attack, Dyn’s servers were loaded with more than  1.2 Tbps of data which crashed the company’s servers. This attack caused major websites like Twitter, Amazon, Reddit, and Netflix to go down. The attack was carried out using IoT devices infected by Mirai malware; which means the attacker might have used your routers, Smart TVs, mobiles, computers and IP cameras to do the DDoS attack.

Since the attackers have started using your Internet-connected devices to launch dangerous attacks (without your knowledge) against  Banks, Telecom, and Media (that speak against some political agendas), it is about time we(users) become aware of DDoS.

What is DDoS Attack?

DDoS is Distributed Denial of Service attack. In this attack, hackers use compromised systems (called botnets) to make online services unavailable to clients. During the attack, the attacker simply overfloods the service provider’s servers with fake traffics from multiple sources (botnets). This causes the servers to crash. Thus, the intended audience are deprived of the services.

In simple words, DDoS attack is like window shoppers swarming your business denying genuine customers from getting your service.

DDoS Attack Nepal
DDoS Attack

Symptoms of DDoS Attack:

According to Wikipedia, the United States Computer Emergency Readiness Team (US-CERT) has identified symptoms of a denial-of-service attack to include:

  • unusually slow network performance (opening files or accessing web sites)
  • unavailability of a particular website
  • inability to access any website
  • a dramatic increase in the number of spam emails received (this type of DoS attack is considered an e-mail bomb).

Additional symptoms may include:

  • disconnection of a wireless or wired internet connection
  • long-term denial of access to the web or any internet services.

Why is DDoS attack so dangerous?

  1. A large-scale attack can affect Internet connectivity of entire geographical regions.
  2. Anyone can buy a week of  DDoS attack at just $150 in the black market. Source: Trendmicro Research
  3. There can be millions of Botnets since many devices these days are connected to the Internet. This makes the attack more dangerous.
  4. There are more than 2000 attacks per day.
  5. Small businesses are an easy target because it is cheap and easy to attack services that don’t have DDoS countermeasures.

How to Fight DDoS attack:

  1. Be prepared by recognizing the symptoms of a DDoS attack.
  2. Get extra bandwidth for your website. This will give you time to fight the DDoS without your service going down.
  3. Monitor your website traffic regularly. Use Web Analytics tools.
  4. If you think you are under attack, contact your ISP or Host Provider.
  5. Use DDoS mitigation specialist companies if you can afford.

In conclusion, spread the words about DDoS attack to everyone you know who owns or wish to own a website. Also, prevent your devices from being compromised– I will write about it on next post. For now, let’s fight DDoS attacks together.

Source: https://www.gadgetbytenepal.com/fight-ddos-attack/

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Mirai Source Code Boosts Popularity of DDoS-as-a-Service Criminal Activity

As one would come to expect from the recent Mirai botnet attacks, DDoS-as-a-service is becoming quite the booming industry. Seemingly everyone in the world holds a grudge against online companies and would like nothing more than to take them down. Now that the Mirai source code was put online several months ago, the number of DDoS attacks will only increase.

DDoS-as-a-business Turns Into A Profitable Business Model

In the world of cybercrime, there are always people willing to do the dirty work for you. Even those who have no idea where to begin when it comes to compiling the Mirai botnet source code, there are those who will offer DDoS attacks as a service in exchange for payment. Even though there are plenty of people who can turn this source code into a valuable tool for their own needs, there are always people willing to pay for such a service.

Just because the Mirai source code is freely available does not mean that aspiring criminals will have an easy time setting up their first botnet. The code is nothing more than a brief guide as to how things will unfold, assuming people put in enough effort to make it work. That doesn’t mean, however, that there is no steep learning curve attached to this process.

Setting up the Mirai source code requires a minimum of four different servers and a certain level of expertise. Now that the solution has been open sourced, criminals have started developing new tools and features for the community. Unfortunately for aspiring internet criminals, this makes setting up the source code even more difficult.

But there is a silver lining for those who are not willing to invest a lot of time into researching the source code and its intricate working. Botnet-as-a-service is a booming business, even though hackers are charging steep prices for this service. Some will even go as far as offering technical support to set up the source code.

To put this into perspective, HackForums contained one particular listing which charged over US$700 for setting up Mirai on behalf of someone else. This included six hours of work to set up servers and conduct quality checks. This is not the biggest investment for a potentially successful criminal operation, although it may put off a lot of people.

DDoS service providers are posing a very significant threat to online companies and users alike. Everyone and everything in the world can be knocked offline if the attack is powerful enough. By offering this business as a service, it is not unlikely that DDoS attacks will become far more widespread than ever before. Mirai’s source code is a significant threat, and it looks like things are only getting worse over time.

Source: http://themerkle.com/mirai-source-code-boosts-popularity-of-ddos-as-a-service-criminal-activity/

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