ESET researchers have recently discovered a Turkish alternative Android app that has been spreading malware across all android apps.
ESET researchers discovered that CepKutusu.com, a Turkish alternative Android app store was spreading malware under the guise of all offered Android apps.
When users browsed the Turkish alternative app store CepKutusu.com and proceeded to downloading an app, the “Download now” button led to banking malware instead of the desired app. A few weeks after ESET researchers turned to the store’s operator with the discovery of the attack, the store ceased the malicious activity.
Interestingly, although ESET researchers found the misdirection from a legitimate app to the malicious one to be general – meaning that every single app was set to be replaced with the banking malware, the crooks behind the campaign added an exception. Probably to increase the chance to stay longer under the radar, they introduced a seven-day window of not serving malware after a malicious download. In practice, after the user downloads the infected app, a cookie is set to prevent the malicious system from prevailing, leading to the user being served clean links for next seven days. After this period passes, the user gets redirected to malware once they try to download any application from the store.
The malicious app distributed by the store at the time of the investigation was remotely controlled banking malware capable of intercepting and sending SMS, displaying fake activity, as well as downloading and installing other apps.
When installed, the malware doesn’t mimic the app the user intended to install. Instead, it imitates Flash Player.
To gain more insight on this attack and its wider implications, we turned to Lukáš Štefanko, Malware Researcher at ESET, who specializes in Android malware and who discovered the malware-distributing app store.
An app store serving its customers with malware on a mass scale – that sounds like a big threat. On the other hand, serving Flash Player instead of whatever customers wanted – that’s a rather thin disguise… What’s your take on this?
First, let me say that this is the first time I’ve seen an entire Android market infected like that. Within the Windows ecosystem and in browsers, this technique is known to have been used for some time but in the Android ecosystem, it’s really a new attack vector.
As for the impact, what we saw in this particular case was most probably a test. The crooks misused their control of the app store in the simplest manner. Replacing the links to all apps with a link to a single malicious app requires virtually no effort – but it also gives the store’s customers a fair chance to detect the scam. If you got lured into downloading a popular game and ended up with Flash Player instead… I think you’d uninstall it straight away and report the issue, right?
This might explain why we have seen only a few hundred infections.
From this point of view, it doesn’t sound like a big deal …
Well, like I said, it was probably a test. I can imagine a scenario in which the crooks who control the store’s back end append a malicious functionality to each of the apps in the store. Serving those interested in a particular game with a trojanized version of that game… That would remove the biggest red flag and the number of victims might rise significantly.
As for the attribution of this attack – have you found any traces?
There are three possible scenarios here: an app store built with the intention to spread malware; a legitimate app store turned malicious by an employee with bad intentions; and a legitimate app store becoming a victim of a remote attacker.
As for scenarios two and three, I would think that such an attack wouldn’t go unnoticed by a legitimate store. User complaints, suspicious server logs and changes in code should be sufficient indicators for its operators…. The more that the malware was being distributed via the store for weeks. Also of interest in this regard is that we contacted the store operators with our findings but haven’t received any reaction.
How to protect yourself
Recommendations by ESET
· If possible, always favor downloading apps from official app stores.
This piece of advice is infinitely repeated for a good reason – there’s no guarantee of any security measures in alternative app stores, making them a great place for malware authors to spread their “work”, and not just via single malicious apps, but also on a mass scale, as illustrated in this case.
· Be cautious when downloading content from the internet. Pay attention to anything suspicious in file name, size and extension – this is where many threats can still be recognized and avoided in time.
· Use a reliable mobile security solution to protect you from the latest threats. As for the threat hidden in the alternative app store, ESET detects it as Android/Spy.Banker.IE and prevents it from getting downloaded.
Now download a bank account
Absa has introduced an end-to-end account opening for new customers, through the Absa Banking App, which can be downloaded from the Android and Apple app stores. This follows the launch of the world first ChatBanking on WhatsApp service.
This “download your account” feature enables new customers to Absa, to open a Cheque account, order their card and start transacting on the Absa Banking App, all within minutes, from anywhere and at any time, by downloading it from the App stores.
“Overall, this new capability is not only expected to enhance the customer’s digital experience, but we expect to leverage this in our branches, bringing digital experiences to the branch environment and making it easier for our customers to join and bank with us regardless of where they may be,” says Aupa Monyatsi, Managing Executive for Virtual Channels at Absa Retail & Business Banking.
“With this innovation comes the need to ensure that the security of our customers is at the heart of our digital experience, this is why the digital onboarding experience for this feature includes a high-quality facial matching check with the Department of Home Affairs to verify the customer’s identity, ensuring that we have the most up to date information of our clients. Security is supremely important for us.”
The new version of the Absa Banking App is now available in the Apple and Android App stores, and anyone with a South African ID can become an Absa customer, by following these simple steps:
- Download the Absa App
- Choose the account you would like to open
- Tell us who you are
- To keep you safe, we will verify your cell phone number
- Take a selfie, and we will do facial matching with the Department of Home Affairs to confirm you are who you say you are
- Tell us where you live
- Let us know what you do for a living and your income
- Click Apply.
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.
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.