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Hidden malware targets enterprises

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Research has revealed that banks, telecommunication companies and government organisations in Africa, the US, South America and Europe are among the top targets, with the GCMAN and Carbanak groups being the primary suspects. 

Kaspersky Lab experts have discovered a series of “invisible” targeted attacks that use only legitimate software: widely available penetration-testing and administration tools as well as the PowerShell framework for task automation in Windows – dropping no malware files onto the hard drive, but hiding in the memory. This combined approach helps to avoid detection by whitelisting technologies, and leaves forensic investigators with almost no artefacts or malware samples to work with. The attackers stay around just long enough to gather information before their traces are wiped from the system on the first reboot.

At the end of 2016, Kaspersky Lab experts were contacted by banks in CIS which had found the penetration-testing software, Meterpreter, now often used for malicious purposes, in the memory of their servers when it was not supposed to be there. Kaspersky Lab discovered that the Meterpreter code was combined with a number of legitimate PowerShell scripts and other utilities.

The combined tools had been adapted into malicious code that could hide in the memory, invisibly collecting the passwords of system administrators so that the attackers could remotely control the victim’s systems. The ultimate goal appears to have been access to financial processes.

Kaspersky Lab has since uncovered that these attacks are happening on a massive scale: hitting more than 140 enterprise networks in a range of business sectors, with most victims located in the USA, France, Ecuador, Kenya, the UK and Russia.

In total, infections have been registered in 40 countries. It is not known who is behind the attacks. The use of open source exploit code, common Windows utilities and unknown domains makes it almost impossible to determine the group responsible – or even whether it is a single group or several groups sharing the same tools.  Known groups that have the most similar approaches are GCMAN and Carbanak.

Such tools also make it harder to uncover the details of an attack. The normal process during incident response is for an investigator to follow the traces and samples left in the network by the attackers. And while data in a hard drive can remain available for a year after an event, artefacts hiding in the memory will be wiped on the first reboot of the computer. Fortunately, on this occasion, the experts got to them in time.

“The determination of attackers to hide their activity and make detection and incident response increasingly difficult explains the latest trend of anti-forensic techniques and memory-based malware. That is why memory forensics is becoming critical to the analysis of malware and its functions. In these particular incidents, the attackers used every conceivable anti-forensic technique; demonstrating how no malware files are needed for the successful exfiltration of data from a network, and how the use of legitimate and open source utilities makes attribution almost impossible,” said Sergey Golovanov, Principal Security Researcher at Kaspersky Lab.

The attackers are still active, so it is important to note that detection of such an attack is possible only in RAM, the network and registry – and that, in such instances, the use of Yara rules based on a scan of malicious files are of no use.

Details of the second part of the operation, showing how the attackers implemented unique tactics to withdraw money through ATMs will be presented by Sergey Golovanov and Igor Soumenkov at the Security Analyst Summit, to be held from 2 to 6 April, 2017.

Kaspersky Lab products successfully detect operations using the above tactics, techniques and procedures. Further information on this story and Yara rules for forensic analysis can be found in the blog on Securelist.com.

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Technical details, including Indicators of Compromise were also provided to customers of Kaspersky Intelligence Services.

 

Combatting attacks by groups like GCMAN or Carbanak requires a specific set of skills from the security specialist guarding the targeted organisation. During the Security Analysis Summit 2017, Kaspersky Lab’s top-notch specialists will be running exclusive security training sessions designed to help specialists detect sophisticated targeted attacks. Apply for training on “Hunting targeted attacks with Yara rules” here. Apply for training on Malware reverse engineering here.

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Epic Games brings a
Nite-mare to Android

Epic Games’ decision to not publish games through Google Play inadvertently opens a market to Android virus makers, writes BRYAN TURNER.

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Epic Games, the creator of Fortnite, decided to take the high road by skipping Google Play’s app distribution market and placing a third-party installer for its games on its website. While this is technically fine, it is not recommended for the average user, because allowing third-party installers on one’s smartphone opens up the possibility of non-signed and malicious software to be run on the smartphone. 

In June, malware researchers at ESET warned Android gamers that malicious fake versions of the Fortnite app had been created to steal personal information or damage smartphones. A malware researcher demonstrated how the fake applications works in the Tweet below.

While the decision to bypass Google Play was a bold move on Epic Games’ part, it has been a long time coming for app developers to move their premium apps off Google’s Play Store. The two major app distributors, Google Play and Apple’s App Store, take a 30% cut of every purchase made through their app distribution platforms. 

The App Store is currently the only way to get apps on a non-modified iOS device, which is why Epic Games had no choice for Fortnite to be in the App Store. On the other hand, Android phones can install packages downloaded through the browser, which makes the Play Store almost unnecessary for the gaming company. 

The most interesting part of this development is that Google is not the “bad guy” and Epic Games is no saviour to other game developers. Epic Games is a company with a multi-billion dollar valuation and has resources like large-scale servers to distribute and update its games, a big marketing budget to ensure everyone knows how to get its games, and server security to protect against malware. 

Resources of this scale allow the game company to turn a cold shoulder to Google’s Play Store distribution and focus on its own, in-house solution. 

That said, installing packages without the Google Play Store must be done carefully, and it is essential to do homework on where a package is downloaded. Moreover, when a package is installed outside of the Google Play Store, a security switch to block the installation of third party apps must be turned off. This switch should be turned back on immediately after the third party package is installed. 

This complex amount of steps makes it less worthwhile to install third party apps, in favour of rather waiting for them to reach the Play Store.

From a consumer perspective, ESET recommends not installing packages outside of the Google Play Store and to ignore advertisements to download the game from other sources.

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How to take on IoT

The Internet of Things (IoT) is coming, whether you like it or not and organisations today will look to platforms and services that help them manage and analyse the streams of data coming from connected devices, says RONALD RAVEL, Director B2B South Africa, Toshiba South Africa.

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Today, we are witnessing an explosion in IoT deployments and solutions and are moving towards a world where almost everything you can imagine will be connected. While this opens the door to many possibilities it also comes with its own challenges such as privacy and security.

The Internet has become an integral part of everyday life; it has been a free for all on a daily basis. IoT is a difficult concept for many people to wrap their minds around. Essentially, nearly every business will be affected.

Managing vast quantities of data across increasingly mobile workforces can be tremendously beneficial if done well, but equally can be cumbersome and ineffective if not managed properly. This is why technologies such as mobile edge computing are becoming increasingly popular, helping to increase the prevalence of secure mobile working and data management in the age of IoT.

Unlocking IoT

The evolution of IoT, despite rapid and ongoing technological innovation, is still very much in its fledgling stages. Its potential, though, is demonstrated by the fact that by 2020, Bain anticipates a significant shift in uptake, with roughly 80 per cent of adoptions at that point to have progressed to the stage of either ‘proof of concept’ or extensive implementation. This means that technological innovation in IoT for the enterprise is progressing at a similarly fast rate with many of these solutions being developed with utilities, engineering, manufacturing and logistics companies in mind.

Processing at the edge

For IoT to be adopted at the rate predicted, technology which does not overwhelm current or even legacy systems must be implemented. Mobile edge computing solves this. Such solutions offer processing power at the edge of the network, helping firms with a high proportion of mobile workers to reduce operational strain and latency by processing the most critical data at the edge and close to its originating source. Relevant data can then be sent to the cloud for observation and analysis, thereby reducing the waves of ‘data garbage’ which has to be processed by cloud services.

A logistics manager can feasibly monitor and analyse the efficiency of warehouse operations, for example, with important data calculations carried out in real-time, on location, and key data findings then sent to the cloud for centrally-located data scientists to analyse.

The work of wearables

The potential of IoT means it not only has the scope to change the way people work, but also where they work. While widespread mobile working is a relatively new trend in industries such as banking and professional services, for CIOs in sectors where working on the move is inherent – such as logistics and field maintenance – mobility is high on the agenda.

Wearables – and specifically smart glasses – have started to gain traction within the business world. With mobile edge computing solutions acting as the gateway, smart glasses such as Toshiba’s assisted reality AR 100 viewer solution have been designed to benefit frontline and field-based workers in industries such as utilities, manufacturing and logistics. In the renewable energy sector, for example, a wind turbine engineer conducting repairs may use assisted reality smart glasses to call up the schematics of the turbine to enable a hands-free view of service procedures. This means that when a fault becomes a barrier to repair, the engineer is able to use collaboration software to call for assistance from a remote expert and have additional information sent through, thereby saving time and money by eradicating the need for extra personnel to be sent to the site.

The time is ripe for organisations to look to exploit the age of IoT to improve the productivity and safety of their workers, as well as the end service delivered to customers. In fact, Toshiba’s recent ‘Maximising Mobility’ report found that 49 per cent of organisations believe their sector can benefit from the hands-free functionality of smart glasses, while 47 per cent expect them to deliver improved mobile working and 41 per cent foresee better collaboration and information sharing. Embracing IoT technologies such as mobile edge computing and wearable solutions will be an essential step for many organisations within these verticals as they look to stay on top of 21st century working challenges.

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