Connect with us

Featured

Hidden malware targets enterprises

Published

on

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.

unnamed-3

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.

Featured

Android Go puts reliable smartphones in budget pockets

Nokia, Vodacom and Huawei have all launched entry-level smartphones running the Android Go edition, and all deliver a smooth experience, writes BRYAN TURNER.

Published

on

Three new and notable Android Go smartphones have recently hit the market, namely the Nokia 1, the Vodafone Smart Kicka 4 and the Huawei Y3 (2018). These phones run one of the most basic versions of Android while still delivering a fairly smooth user experience.

Historically, consumers purchasing smartphones in the budget bracket would have a hit-and-miss experience with processing speed, smoothness of user interface, and app stability. The Google-supported Android Go edition operating system optimises the user experience by stripping out non-important visual effects to speed up the phone. Thish allows for more memory to be used by apps. 

Google also ensures that all smartphones running Android Go will receive feature and security updates as they are released by Google. This is a major selling point for these smartphones, as users of this smartphone will always be running the latest software, with virtually no manufacturer bloatware.

Vodafone Smart Kicka 4

At the lowest entry-level, the Vodafone Smart Kicka 4 performs well as a communicator for emails and WhatsApp messages. The 4” screen represents a step up for entry-level Android phones, which were previously standardised at 3.5”.

The display is bright and very responsive, while the limited screen real estate leaves the navigation keys off the screen as touch buttons. It uses 3G connectivity, which might seem like an outdated technology, but is good enough to stream SD videos and music. Vodacom has also thrown in some data gifts if the smartphone is activated before the end of September 2018. 

Its camera functionalities might be a slight let down for the aspirant Instagrammer, with a 2MP rear flash camera and a 0.3MP selfie snapper. Speed wise, the keyboard pops up quickly, which is a huge improvement from the Smart Kicka 3. However, this phone will not play well with graphics-intensive games. 

Nokia 1

Next up is the Nokia 1, which adds a much better 5MP camera, improved battery life and a bigger 4.5” screen. It supports LTE, which allows this smartphone to download and upload at the speed of flagships. It also sports the Nokia brand name, which many consumers trust.

Although the front camera is 2MP, the quality is extremely grainy, even with good lighting. This disqualifies this smartphone for the social media selfie snapper, but the 5MP rear camera will work for the landscape and portrait photographer. 

The screen also redeems this smartphone, providing a display which represents colours truly and has great viewing angles. Xpress-on back covers allows the use of interchangeable, multi-coloured back covers, which has proven to be a successful sales point for mid-range smartphones in the past. 

Huawei Y3 (2018)

The most capable of the Android Go edition competitors, the Huawei Y3 (2018) packs an even bigger screen at 5”, as well as an improved 8MP rear camera and HD video recording. The screen is the brightest and most vibrant of the three smartphones, but seems to be calibrated to show colours a little more saturated than they actually are. 

Nevertheless, the camera outperforms the other smartphones with good colour replication and great selfie capabilities via the 2MP front camera – far superior to the Nokia 1 despite the same spec. LTE also comes standard with this smartphone and Vodacom throws in 4G/LTE data goodies until the end of September 2018. The battery, however, is not removable and may only be replaced by a warranty technician.

Comparing the 3

All three smartphones have removable back covers, which provide access to the battery, SIM card and SD card slots. The smartphones have Micro USB ports on the bottom with headphone jacks on the top. The built-in speakers all performed well, with the Y3 (2018) housing an exceptionally loud built-in speaker. 

Although all at different price points, all three phones remain similar in performance and speed. The differentiators are apparent in the components, like camera quality and screen quality. It would be fair to rank the quality of the camera and battery life by respective market prices. The Vodafone Smart Kicka 4 performed well, for its R399 retail price. The Nokia 1, on the other hand, lags quite a bit in features when compared to the Huawei Y3 (2018), bwith oth retailing at R999.

Continue Reading

Featured

SA gets digital archive

As the world entered the centenary of Nelson Mandela’s birth on Mandela Day, 18 July 2018, South Africa celebrated the launch of a digital living archive. 

Published

on

The southafrica.co.za  site carries content about the country’s collective heritage in South Africa’s eleven official languages.

Designed as a nation building,  educational and brand promotion web based tool, the free-to-view platform features award-winning photographic and written content by leading South African photographers, authors, academics and photojournalists.

The emphasis is on quality, credible, factual content that celebrates a collective heritage in terms of the following: Cultural Heritage; Natural Heritage; Education; History; Agriculture; Industry; Mining; and Travel.

At the same time as reflecting on the nation’s history, southafrica.co.za celebrates South Africa’s natural, cultural and economic assets so that the youth can learn about their nation in their home language.

Southafrica.co.za Founder and CEO Hans Gerrizen conceptualised southafrica.co.za as a means for youth and communities from outlying areas to benefit from the digital age in terms of the web tool’s empowering educational component.

“We can only stand to deepen our collective experience of democracy and become a more forward planning nation if we know facts about our nation’s past and present in everyone’s home language,” he says.

Southafrica.co.za, with sister company Siyabona Africa, is the organiser and sponsor of the Mandela: 100 Moments photographic exhibition that runs until 30 September at Cape Town’s V&A Waterfront-based Nelson Mandela Gateway to Robben Island.  The 3-month exhibition, which runs daily from 08h00 until 15h00, is showcasing one hundred iconic Nelson Mandela images taken by veteran South African photojournalist and self-taught lensman Peter Magubane.

Continue Reading

Trending

Copyright © 2018 World Wide Worx