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Ransomware defence must go beyond just files

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Ransomware is on the increase, and while most threats request money in return for encrypted files, hackers are using other ways to extract payment from their victims, explains DOROS HADJIZENONOS, country manager, Check Point South Africa.

Ransomware is an ever-increasing threat worldwide, claiming new victims on a regular basis with no end in sight. While most ransomware families prevent the victims from accessing their documents, pictures, databases and other files by encrypting them and offering a decryption key in return for a ransom payment, others use different, but no less creative ways to extract payment from their victims. Here are some examples:

IoT ransomware

Smart devices are known to be a soft spot targeted by threat actors for various purposes. In August 2016, security researchers demonstrated their ability to take control of a building’s thermostats and cause them to increase the temperature up to 99 degrees Celsius. This was the first proof of concept of this kind of attack, showing a creative way to put pressure on victims and drive them to pay ransom or risk consequences such as a flood or an incinerated house.

In November 2016, travellers in the San Francisco MUNI Metro were prevented from buying tickets at the stations due to a ransomware attack on MUNI’s network. In this case the attackers demanded $70,000 in BitCoins. In January 2017, a luxurious hotel in Austria was said to suffer an attack on its electronic key system, resulting in guests experiencing difficulties in going in or out of their rooms. The attackers demanded $1,500 in BitCoins. Whether or not this story is accurate, it demonstrates how creative this type of attack can get.

The growing use of IoT devices will likely make this attack vector more and more common in the future. For example, the potential exploitation of vulnerabilities inside smart, implantable cardiovascular defibrillators, can allow an attacker to put a victim’s life at risk until the ransom is paid. As IoTs become more widespread in our everyday life, threat actors will find new, horrifying ways to subjugate victims for profit.

Hostage data ransomware

A more direct approach is to steal data from victims and threaten to expose it unless a ransom payment is received by a certain deadline. This generic modus operandi has been used by different malware families and campaigns. For example, in May 2016, over 10 million customer records of a leading South Korean online shopping mall were stolen, including names, addresses and phone numbers. The attackers demanded a ransom of $2,664 in BitCoins to prevent release of the information online.

Another example is Charger, a screen-locker Android ransomware discovered by Check Point researchers in January 2016. The attackers threatened to sell stolen data from targeted devices unless they receive a ransom of 0.2 BitCoins (approximately $180). The malware is embedded in a mobile app named EnergyRescue, downloaded from Google Play.

DDoS ransomware

Another method for attackers is threatening to conduct a denial of service attack unless a ransom is paid. With the growing use of botnets for DDoS attacks, this attack vector is especially common against banks, and is very attractive as it is far simpler than developing a ‘traditional’ file-encrypting ransomware. This attack vector made headlines in January 2017 when it was used in an attack against the web portal of the British Lloyds Bank. The attackers issued a DDoS threat with a demand of 100 BitCoins (worth approximately $94,000).

Screen lockers

Some ransomware simply prevent victims from using their devices by locking their screens. There are different ways to conduct a screen locking attack, but common features include cancelling all options to close a program or to shut it down. Examples of such ransomware are DeriaLock (December 2016), which targets PCs and demands a payment of $30 for unlocking; and Flocker (May 2015), an Android screen locker which targets smartphones and Android-run smart TVs, and demands an iTunes gift card worth $200 as payment.

Summary

Ransomware attacks are a popular way for threat actors to make easy profits, as the payment is made anonymously using anonymous BitCoin wallets rather than bank transfers. The motivation for victims to cooperate is high, as their personal data is on the line. While most ransomware families encrypt files, some use creative ways to drive victims to pay. By preventing victims from accessing their machines, creating real damage or exposing sensitive data, the attackers are able to bypass the complexities of managing an encryption and decryption process. We estimate that the use of alternative ransomware, especially DDoS and IoT ransomware, will keep on growing in the near future, as IoT devices and web services continue to become more widespread.

How to protect yourself

We highly recommend you take these steps to protect yourself from ransomware or mitigate their effects:

  • Backup your most important files – Make an offline copy of your files on an external device and an online cloud stage service. This method protects your files not only from ransomware but from other hazards as well. Note: external devices should be used for backup ONLY and be disconnected immediately after the backup is completed.
  • Exercise caution – We usually don’t sense any danger while using our computers or other devices, but it’s there. Threat actors are constantly trying to steal your money, your private data and your machine resources – don’t let them have it. Don’t open e-mails you don’t expect to receive, don’t click links unless you know exactly what they are and where they lead, and if you are asked to run macros on an Office file, DON’T! The only situation in which you should run macros is in the rare case that you know exactly what those macros will do. Additionally, keep track of the latest major malware campaigns to ensure that you will not fall victim to a new and unique phishing technique or download a malicious app, which can lead to malware installation on your computer or theft of your credentials.
  • Have a comprehensive, up-to-date, security solution – High quality security solutions and products protect you from a variety of malware types and attack vectors. Today’s Anti-Virus, IPS and sandboxing solutions can detect and block Office documents that contain malicious macros, and prevent many exploit kits from exploiting your system even prior to the malware infection. Check Point Sandblast solution efficiently detects and blocks ransomware samples, and extracts malicious content from files delivered by spam and phishing campaigns. Installing your IoT devices behind a Security Gateway will keep them safe as well.

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How we use phones to avoid human contact

A recent study by Kaspersky Lab has found that 75% of people pick up their connected device to avoid conversing with another human being.

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Connected devices are becoming essential to keeping people in contact with each other, but for many they are also a much-needed comfort blanket in a variety of social situations when they do not want to interact with others. A recent survey from Kaspersky Lab has confirmed this trend in behaviour after three-quarters of people (75%) admitted they use a device to pretend to be busy when they don’t want to talk to someone else, showing the importance of keeping connected devices protected under all circumstances. 

Imagine you’ve arrived at a bar and you’re waiting for your date. The bar is busy, and people are chatting all around you. What do you do now? Strike up a conversation with someone you don’t know? Grab your phone from your pocket or handbag until your date arrives to keep yourself busy? Why talk to humans or even make eye-contact with someone else when you can stare at your connected device instead?

The truth is, our use of devices is making it much easier to avoid small talk or even be polite to those around us, and new Kaspersky Lab research has found that 72% of people use one when they do not know what to do in a social situation. They are also the ‘go-to’ distraction for people even when they aren’t trying to look busy or avoid someone’s eye. 46% of people admit to using a device just to kill time every day and 44% use it as a daily distraction.

In addition to just being a distraction, devices are also a lifeline to those who would rather not talk directly to another person in day-to-day situations, to complete essential tasks. In fact, nearly a third (31%) of people would prefer to carry out tasks such as ordering a taxi or finding directions to where they need to go via a website and an app, because they find it an easier experience than speaking with another person.

Whether they are helping us avoid direct contact or filling a void in our daily lives, our constant reliance on devices has become a cause for panic when they become unusable. A third (34%) of people worry that they will not be able to entertain themselves if they cannot access a connected device. 12% are even concerned that they won’t be able to pretend to be busy if their device is out of action.

Dmitry Aleshin, VP for Product Marketing, Kaspersky Lab said, “The reliance on connected devices is impacting us in more ways than we could have ever expected. There is no doubt that being connected gives us the freedom to make modern life easier, but devices are also vital to help people get through different and difficult social situations. No matter what your ‘connection crutch’ is, it is essential to make sure your device is online and available when you need it most.”

To ensure your device lifeline is always there and in top health – no matter what the reason or situation – Kaspersky Security Cloud keeps your connection safe and secure:

·         I want to use my device while waiting for a friend – is it secure to access the bar’s Wi-Fi?

With Kaspersky Security Cloud, devices are protected against network threats, even if the user needs to use insecure public Wi-Fi hotspots. This is done through transferring data via an encrypted channel to ensure personal data safety, so users’ devices are protected on any connection.

·         Oh no! I’m bored but my phone’s battery is getting low – what am I going to do?

Users can track their battery level thanks to a countdown of how many minutes are left until their device shuts down in the Kaspersky Security Cloud interface. There is also a wide-range of portable power supplies available to keep device batteries charged while on-the-go.

·         I’ve lost my phone! How will I keep myself entertained now?

Should the unthinkable happen and you lose or have your phone stolen, Kaspersky Security Cloud can track and protect your device from data breaches, for complete peace of mind. Remote lock and locate features ensure your device remains secure until you are reunited.

 

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Five key biometric facts

Due to their uniqueness, fingerprints are being used more and more to quickly identify and ensure the security of customers. CLAUDE LANGLEY, Regional Sales Manager, for Africa at HID Global Biometrics, outlines five facts about the technology.

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How many times in a day are you expected to identify yourself? From when you arrive at work you are required to sign in, visiting your bank, receiving healthcare services… The list is endless. When a system knows who you are, you are able to do any number common, everyday activities. Your identity is unique and precious. It is also easily stolen and the target of many hackers across the globe. Technology is constantly evolving alongside the criminal element, always looking for ways to protect data and identity. One such solution happens to be biometrics and it is rapidly gaining traction in our increasingly complex modern world.

Reliable, secure and fundamentally YOU, unique biometric traits such as fingerprints are being used by banks, enterprises and consumers to verify identity. Biometric solutions offer significant identity protection because they use unique biological details to ensure an account is only accessed by the account holder, a door only opened by the owner. Here are five things that are little known about this technology…

  • The uncut identity. Your fingerprint is unique to you. Nobody can use a copy of it to impersonate you. Good technology is capable of scanning down into the layers of the fingertip to differentiate unique elements of a person’s fingerprint, this data is then encrypted and used as a key to unlocking whichever physical or virtual door that the biometric system protects.
  • The living proof. No, there is nothing to the stories of fingerprints being used without their owner’s knowledge or permission. Biometric solutions can use specific variables to determine if the finger used to access the system is that of a present, living person.  A copy or a fake cannot be used to access a cutting-edge biometric solution.
  • Easy and convenient. Queues and documents and paperwork may well be a thing of the past should biometrics take a firmer grip of government and banking systems. The process of registering is easy, and access to identity documents and records is yours alone.
  • Security blanket. A thousand passwords and a hundred post-it notes stuck on walls and drawers.  An excel file with a list of sites and applications and their corresponding passwords, all a thing of the past.  Nobody needs to remember their password with biometrics, they only need to show up.
  • Anywhere is cool. Schools, airports, networks, offices, homes, toilets, banks, libraries, governments, border controls, immigration services, call centres, hospitals and even clubs and pubs – knowing “who” matters and biometrics can quickly and conveniently confirm your identity where needed.

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