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:
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.
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).
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.
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.
Huawei Mate 20 unveils ‘higher intelligence’
The new Mate 20 series, launching in South Africa today, includes a 7.2″ handset, and promises improved AI.
Huawei Consumer Business Group today launches the Huawei Mate 20 Series in South Africa.
The phones are powered by Huawei’s densest and highest performing system on chip (SoC) to date, the Kirin 980. Manufactured with the 7nm process, incorporating the Cortex-A76-based CPU and Mali-G76 GPU, the SoC offers improved performance and, according to Huawei, “an unprecedented smooth user experience”.
The new 40W Huawei SuperCharge, 15W Huawei Wireless Quick Charge, and large batteries work in tandem to provide users with improved battery life. A Matrix Camera System includes a Leica Ultra Wide Angle Lens that lets users see both wider and closer, with a new macro distance capability. The camera system adopts a Four-Point Design that gives the device a distinct visual identity.
The Mate 20 Series is available in 6.53-inch, 6.39-inch and 7.2-inch sizes, across four devices: Huawei Mate 20, Mate 20 Pro, Mate 20 X and Porsche Design Huawei Mate 20 RS. They ship with the customisable Android P-based EMUI 9 operating system.
“Smartphones are an important entrance to the digital world,” said Richard Yu, CEO of Huawei Consumer BG, at the global launch in London last week. “The Huawei Mate 20 Series is designed to be the best ‘mate’ of consumers, accompanying and empowering them to enjoy a richer, more fulfilled life with their higher intelligence, unparalleled battery lives and powerful camera performance.”
The SoC fits 6.9 billion transistors within a die the size of a fingernail. Compared to Kirin 970, the latest chipset is equipped with a CPU that is claimed to be 75 percent more powerful, a GPU that is 46 percent more powerful and an NPU (neural processing unit) that is 226 percent more powerful. The efficiency of the components has also been elevated: the CPU is claimed to be 58 percent more efficient, the GPU 178 percent more efficient, and the NPU 182 percent more efficient. The Kirin 980 is the world’s first commercial SoC to use the Cortex-A76-based cores.
Huawei has designed a three-tier architecture that consists of two ultra-large cores, two large cores and four small cores. This allows the CPU to allocate the optimal amount of resources to heavy, medium and light tasks for greater efficiency, improving the performance of the SoC while enhancing battery life. The Kirin 980 is also the industry’s first SoC to be equipped with Dual-NPU, giving it higher On-Device AI processing capability to support AI applications.
Read more about the Mate 20 Pro’s connectivity, battery and camera on the next page.
How Quantum computing will change … everything?
Research labs, government agencies (NASA) and tech giants like Microsoft, IBM and Google are all focused on developing quantum theories first put forward in the 1970s. What’s more, a growing start-up quantum computing ecosystem is attracting hundreds of millions of investor dollars. Given this scenario, Forrester believes it is time for IT leaders to pay attention.
“We expect CIOs in life sciences, energy, defence, and manufacturing to see a deluge of hype from vendors and the media in the coming months,” says Forrester’s Brian Hopkins, VP, principal analyst serving CIOs and lead author of a report: A First Look at Quantum Computing. “Financial services, supply-chain, and healthcare firms will feel some of this as well. We see a market emerging, media interest on the rise, and client interest trickling in. It’s time for CIOs to take notice.”
The Forrester report gives some practical applications for quantum computing which helps contextualise its potential:
- Security could massively benefit from quantum computing. Factoring very large integers could break RSA-encrypted data, but could also be used to protect systems against malicious attempts.
- Supply chain managers could use quantum computing to gather and act on price information using minute-by-minute fluctuations in supply and demand
- Robotics engineers could determine the best parameters to use in deep-learning models that recognise and react to objects in computer vision
- Quantum computing could be used to discover revolutionary new molecules making use of the petabytes of data that studies are now producing. This would significantly benefit many organisations in the material and life sciences verticals – particularly those trying to create more cost-effective electric car batteries which still depend on expensive and rare materials.
Continue reading to find out how Quantum computing differs.