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Cyber Security

Comodo Mobile Masters Android Master Key Vulnerability

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Update: check the latest version of Comodo’s free mobile security app



Have you ever heard of the old card trick, the Double Lift? Even a novice magician should have this essential card trick mastered. But for those of you don’t know it; the Double Lift consists of presenting two cards in a way in which the audience only sees one card, the second card, while keeping the topmost card behind it. There are many variations of how to do this trick, but they all achieve the same goal – tricking the audience into believing they are looking at the topmost card when in reality, they are actually seeing the second card.

You may be wondering how a card trick is related to the security of your mobile device. Bluebox Labs recently discovered the Android Master Key Vulnerability, a security threat that uses the same method of the Double Lift to affect millions of mobile devices worldwide.

In the simplest terms, if you put two files with the same name into an Android installation package (.APK), Android will verify the digital signature of the first file BUT will install using the second file. In this attack, the first file is a legitimate app but the second file is malware. Android application packages are basically zip files. The operating system verifies the digital signature of each file before installing it. This way, it makes sure that the app is legitimate and not tampered. Verification and installation is handled by different libraries. The first library, implemented in Java, creates a hash map while the second library, written in C, verifies each entry in the hash map. This makes the process vulnerable to specially crafted application packages carrying multiple files with the same name. Thus, malware authors can get a legitimate APK file as well as a system application and inject their malicious file into this package. The result – a user will unknowingly install a malicious file onto their device instead of the original file.

Let’s see an example of an application using this vulnerability. Below you can see an APK file containing multiple files with the same name. There is also another directory named META-INF which contains a special file named MANIFEST.MF. This is the file containing digital signatures of each file in the application package.

vulnerability Scanning

vulnerability Scanning

Since the MANIFEST.MF file contains the digital signature of the first file, there won’t be any problems verifying the signature of this application. However, when it comes to installation, guess which file will be installed into the mobile device? That’s right, the second (malicious) one! As illustrated, this vulnerability allows malware authors to easily get an APK file, inject their malicious code into it, and distribute it as a legitimate application without anyone noticing it. This technique, which is increasingly being used by malware authors, holds true for system applications which are distributed within your mobile device.

CMS has found the following malware on your device

What Can You Do?

Comodo advises you to install and scan your mobile device with Comodo Mobile Security. The latest update, CMS 2.3 includes an Android master key vulnerability detector along with android antivirus which successfully detects and removes malicious files,, exploiting this vulnerability.

Whether it’s an old card trick or your Android phone, don’t fall for the Double Lift.

This post was created by Emre Tinaztepe, Malware Analysis Team Lead of Comodo Turkey.

Related Resources

Android Device Manager

Android antivirus

TEST YOUR EMAIL SECURITY GET YOUR INSTANT SECURITY SCORECARD FOR FREE Source: https://blog.comodo.com/mobile-security/comodo-mobile-security-detects-a-serious-android-vulnerability/

Cyber Security

Digitally Signed Bandook Trojan Reemerges in Global Spy Campaign

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The administrator of your personal data will be Threatpost, Inc., 500 Unicorn Park, Woburn, MA 01801. Detailed information on the processing of personal data can be found in the privacy policy. In addition, you will find them in the message confirming the subscription to the newsletter.

Source: https://threatpost.com/digitally-signed-bandook-trojan-spy-campaign/161676/

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Cyber Security

MacOS Users Targeted By OceanLotus Backdoor

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The administrator of your personal data will be Threatpost, Inc., 500 Unicorn Park, Woburn, MA 01801. Detailed information on the processing of personal data can be found in the privacy policy. In addition, you will find them in the message confirming the subscription to the newsletter.

Source: https://threatpost.com/macos-users-targeted-oceanlotus-backdoor/161655/

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Cyber Security

Pandemic, A Driving Force in 2021 Financial Crime

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The administrator of your personal data will be Threatpost, Inc., 500 Unicorn Park, Woburn, MA 01801. Detailed information on the processing of personal data can be found in the privacy policy. In addition, you will find them in the message confirming the subscription to the newsletter.

Source: https://threatpost.com/2021-financial-crime-covid-19/161665/

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Big Data

Contactless payments market to reach US$ 26.3 billion by 2027

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Contactless Payments Market To Reach US$ 26.3 Billion By 2027

The global contactless payments market is expected to surpass US$ 26.3 Billion by 2027 end, registering a CAGR of 12.9% during the forecast period of 2019 to 2027), as highlighted in a report published by Coherent Market Insights.

Increasing demand for contactless payments from the retail sector is expected to drive market growth during the forecast period. Retailers are modernizing their brick-and-mortar stores to offer secure services to customers and establishing online stores to increase revenue.

They are adopting advanced technologies such as big data analytics and cloud computing to increase their presence in the market. Retail manufacturers are using contactless payments methods that provide many benefits, such as reduced transaction time, increased operational efficiency, increased revenue, minimized cost, and others. Contactless payment methods at retail stores reduce transaction process and queue in counter.

Moreover, governments are also focusing on introducing new payment methods in order to increase productivity and remain competitive in the market. For instance, in December 2016, the government of India launched BHIM app for Unified Payment Interface (UPI). The common UPIbased BHIM app allows the user to send and receive money through their mobile phones by linking their bank accounts. For instance, according to Coherent Market Insights’ analysis, the number of transactions done through the Bharat Interface for Money (BHIM) app reached 18.8 million in February 2020.

Contactless Payments Market – Impact of Coronavirus (Covid-19) Pandemic

According to Coherent Market Insight‘s study, globally, most of the countries are affected by COVID-19 and most of the countries have announced lockdown.Contactless payment have become more preferred payment method, as it requires less physical interactions.

Smartphone based payment interface and digital wallets are the potential solutions to contain the spread of coronavirus pandemic. Moreover, recent developments in digital payments have encouraged the use of contactless payment methods during this pandemic. For instance, in April 2020, Upgrade Inc., a U.S.-based loan company, launched new contactless credit card. The new credit card provides high transaction limit than other payment methods.

Moreover, bank authorities and card network in Germany, U.K., Austria, and other countries have set higher transaction limit, as people are staying at home and prefer shopping through payment cards only. For instance, U.K Finance Limited increased the transaction limit for contactless payment cards starting from 30 Euros to 45 Euros. This, in turn, increases demand for contactless payment solutions.

Key Trends and Analysis of the Global Contactless Payments Market:

  • Europe held dominant position in the global contactless payments market in 2019 and is expected to retain its dominance throughout the forecast period. This is owing to increasing payment through smart cards. For instance, according to the Electronic Transactions Association (ETA), contactless payments through Mastercard and Maestro increased by 145% in Europe in 2018. Furthermore, in 2019, according to Coherent Market Insights’ analysis, the transactions through contactless payment methods reached 651 million in the U.K.
  • Asia Pacific is expected to show significant growth over the forecast period. The increasing adoption of contactless payment methods from retail industry is fueling the market growth. Retailers are modernizing their conventional payment methods with contactless payment methods, in order to improve productivity and efficiency in the business.
  • Among device type, the smartphone segment held dominant position in the market in 2019 and is expected to retain its dominance during the forecast period. This is owing to increasing demand for live streaming from consumers. For instance, the online video streaming market is expected to exceed US$ 70,000 million in 2021 from US$ 30,000 million in 2016.
  • Major players operating in the global contactless payments market include Thales Group, Infineon Technologies AG, Ingenico Group, Wirecard, VeriFone, Inc., Giesecke+Devrient GmbH, IDEMIA, Track Innovations LTD., Identiv, Inc., CPI Card Group Inc., Setomatic Systems, Valitor, PAX, PINPAD, Mobeewave, alcineo, and Paycor, Inc.

Source: https://www.fintechnews.org/contactless-payments-market-to-reach-us-26-3-billion-by-2027/

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