Kaspersky Lab experts have recently discovered a malicious app on the Google Play store called “Guide for Pokémon Go”, which is capable of seizing root access rights on Android smartphones. The app has reportedly been downloaded more than 500,000 times.
The global phenomenon of Pokémon Go has resulted in a growing number of related apps and, inevitably, increased interest from the cybercriminal community. Kaspersky Lab’s analysis of the “Guide for Pokémon Go” Trojan has uncovered malicious code that downloads rooting malware, securing access to the core Android OS for the purposes of app installation and removal as well as the display of advertising.
The Trojan includes some interesting features that help it to bypass detection. For example, it doesn’t start as soon as the victim launches the app. Instead, it waits for the user to install or uninstall another app, and then checks to see whether that app runs on a real device or on a virtual machine. If it’s dealing with a device, the Trojan will wait a further two hours before starting its malicious activity. Even then, infection is not guaranteed. After connecting with its command server and uploading details of the infected device, including country, language, device model and OS version, the Trojan will wait for a response. Only if it hears back will it proceed with further requests and the downloading, installation and implementation of additional malware modules.
This approach means that the control server can stop the attack from proceeding if it wants to – skipping those users it does not wish to target, or those which it suspects are a sandbox/virtual machine, for example. This provides an additional layer of protection for the malware.
Once rooting rights have been enabled, the Trojan will install its modules into the device’s system folders, silently installing and uninstalling other apps and displaying unsolicited ads to the user. Kaspersky Lab analysis shows that at least one other version of the malicious Pokémon Guide app was available through Google Play in July 2016. Further, researchers have tracked back at least nine other apps infected with the same Trojan and available on Google Play Store at different times since December 2015.
Kaspersky Lab’s data suggests that there have been just over 6,000 successful infections to date, including in Russia, India and Indonesia. However, since the app is oriented towards English-speaking users, people in such geographies, and more, are also likely to have been hit.
“In the online world, wherever the consumers go, the cybercriminals will be quick to follow. Pokémon Go is no exception. Victims of this Trojan may, at least at first, not even notice the increase in annoying and disruptive advertising, but the long term implications of infection could be far more sinister. If you’ve been hit, then someone else is inside your phone and has control over the operating system and everything you do and store on it. Even though the app has now been removed from the store, there’s up to half a million people out there vulnerable to infection – and we hope this announcement will alert them to the need to take action,” said Roman Unuchek, Senior Malware Analyst, Kaspersky Lab.
People concerned that they may encounter the Trojan should install a reliable security solution, such as Kaspersky Internet Security for Android, on their device. If the security scan shows that they are already infected, the best way to remove the rooting malware is to backup all data and reset the device to factory settings.
In addition, Kaspersky Lab advises users to always check that apps have been created by a reputable developer, to keep their operating system and application software up-to-date, and not to download anything that looks at all suspicious or whose source cannot be verified.
To learn more about the Pokémon Go Guide rooting Trojan, read the blog on Securelist.com.
Cons exploit Telegram ICO
Kaspersky Lab researchers have uncovered dozens of highly convincing fake websites claiming to be investment sites for an initial coin offering (ICO) by the Telegram messaging service. Many of these websites appear to belong to the same group. In one case alone, tens of thousands of US dollars’ worth of cryptocurrency were stolen from victims believing they were investing in ‘Grams’, Telegram’s rumoured new currency. Telegram has not officially confirmed an ICO and has warned people about fraudulent investor sites.
In late 2017, stories started to circulate that the Telegram messaging service was launching an initial coin offering (ICO) to finance a blockchain platform based on its TON (Telegram Open Network) technology. Unverified technical documentation was posted online, but there appears to have been no confirmation from Telegram itself. The resulting confusion seems to have allowed fraudsters to capitalise on investor interest by creating fake sites and stealing vast sums of money.
Kaspersky Lab researchers have discovered dozens of such sites, possibly belonging to the same group, claiming to sell tokens for ‘Grams’ and inviting investors to pay with cryptocurrencies including Bitcoin, Ethereum, lice litecoin, dash and Bitcoin dash. A record of transactions on one site revealed that the scammers were able to steal at least $35,000 US dollars’ worth of Ethereum from investors.
The researchers found that some of the websites were so convincing that even after Telegram and others began to issue warnings, they were still able to recruit potential investors. Most use a secure connection, require registration and generate a unique online wallet for each new victim, making it harder to track the money.
Judging by the content of the fake websites, it appears they may have common ownership. For example, several have the exactly the same ‘Our Team’ section.
“ICOs are a fairly risky investment and many people don’t yet fully understand how they work, so it is not surprising that high quality fake websites, with seemingly reassuring features such as a secure connection and registration are successful at luring people in. People wishing to invest in an ICO would do well to check with the company behind it and make sure they know exactly who they are giving their money to, or they may never see it again,” said Nadezhda Demidova, Lead Web-Content Analyst, Kaspersky Lab.
Kaspersky Lab offers the following advice for users considering investing in an ICO:
- Check for warning signs: for example, some of the fake Telegram ICO websites had the same wrong image next to the name of Telegram’s Chief Product Officer.
- Do your homework: always check with the brand’s official site to verify the legitimacy of the investment site and, if necessary contact the company’s ICO teams before investing any money or currency.
- Use reliable security solutions such as Kaspersky Internet Security and Kaspersky Internet Security for Android, which will warn you if you try to visit fake internet pages.
Crouching Yeti strikes
Kaspersky Lab has uncovered infrastructure used by the Russian-speaking APT group Crouching Yeti, also known as Energetic Bear, which includes compromised servers across the world.
According to the research, numerous servers in different countries were hit since 2016, sometimes in order to gain access to other resources. Others, including those hosting Russian websites, were used as watering holes.
Crouching Yeti is a Russian-speaking advanced persistent threat (APT) group that Kaspersky Lab has been tracking since 2010. It is best known for targeting industrial sectors around the world, with a primary focus on energy facilities, for the main purpose of stealing valuable data from victim systems. One of the techniques the group has been widely using is through watering hole attacks: the attackers injected websites with a link redirecting visitors to a malicious server.
Recently Kaspersky Lab has discovered a number of servers, compromised by the group, belonging to different organisations based in Russia, the U.S., Turkey and European countries, and not limited to industrial companies. According to researchers, they were hit in 2016 and 2017 with different purposes. Thus, besides watering hole, in some cases they were used as intermediaries to conduct attacks on other resources.
In the process of analysing infected servers, researchers identified numerous websites and servers used by organisations in Russia, U.S., Europe, Asia and Latin America that the attackers had scanned with various tools, possibly to find a server that could be used to establish a foothold for hosting the attackers’ tools and to subsequently develop an attack. Some of the sites scanned may have been of interest to the attackers as candidates for waterhole. The range of websites and servers that captured the attention of the intruders is extensive. Kaspersky Lab researchers found that the attackers had scanned numerous websites of different types, including online stores and services, public organisations, NGOs, manufacturing, etc.
Also, experts found that the group used publicly available malicious tools, designed for analyzing servers, and for seeking out and collecting information. In addition, a modified sshd file with a preinstalled backdoor was discovered. This was used to replace the original file and could be authorised with a ‘master password’.
“Crouching Yeti is a notorious Russian-speaking group that has been active for many years and is still successfully targeting industrial organisations through watering hole attacks, among other techniques. Our findings show that the group compromised servers not only for establishing watering holes, but also for further scanning, and they actively used open-sourced tools that made it much harder to identify them afterwards,” said Vladimir Dashchenko, Head of Vulnerability Research Group at Kaspersky Lab ICS CERT.
“The group’s activities, such as initial data collection, the theft of authentication data, and the scanning of resources, are used to launch further attacks. The diversity of infected servers and scanned resources suggests the group may operate in the interests of the third parties,” he added.
Kaspersky Lab recommends that organisations implement a comprehensive framework against advanced threats comprising of dedicated security solutions for targeted attack detection and incident response, along with expert services and threat intelligence. As a part of Kaspersky Threat Management and Defense, our anti-targeted attack platform detects an attack at early stages by analysing suspicious network activity, while Kaspersky EDR brings improved endpoint visibility, investigation capabilities and response automation. These are enhanced with global threat intelligence and Kaspersky Lab’s expert services with specialisation in threat hunting and incident response.
More details on this recent Crouching Yeti activity can be found on the Kaspersky Lab ICS CERT website.