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Apps with Joker malware have been downloaded almost half a million times | Security

CSIS security experts have identified a new Android malware called Joker, featured in 24 apps regularly offered on the Google Play Store, which together add up to nearly half a million downloads. According to the report published last week, the threat has the ability to obtain the user's credentials and use them to contract subscription services inside or outside the Google store, causing financial damage that can only be seen on the credit card statement. . Brazil is one of the countries potentially affected by malware. Infected apps have already been removed from the Play Store.

Android phones vulnerable to SMS phishing attack

Malware can cause financial damage to victims Photo: Reproduction / Rodrigo FernandesMalware can cause financial damage to victims Photo: Reproduction / Rodrigo Fernandes

Malware can cause financial damage to victims Photo: Reproduction / Rodrigo Fernandes

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According to Aleksejs Kuprins, an expert who discovered malware in action, Joker It has a mechanism that adapts its behavior to certain regions. If malware detects through the telephone number that the user of a specific country, it may simply become inactive as it may be a precautionary way not to affect people from certain locations.

Another comment from the expert is that Joker may be of Chinese origin, due to comments available in the threat code snippets that developers put in the middle of the source code to facilitate future interventions and maintenance.

Found in at least 24 different apps, which together add up to 472,000 downloads, the Joker It can even cause damage that goes unnoticed by the victims. As application subscription services tend to charge small fees, you can spend months paying the fees.

Check out the list of apps that contain Joker:

  • Advocate Wallpaper
  • Age face
  • Altar Message
  • Antivirus Security – Security Scan
  • Beach camera
  • Board picture editing
  • Certain Wallpaper
  • Climate SMS
  • Collate Face Scanner
  • Cute camera
  • Dazzle Wallpaper
  • Declare Message
  • Display camera
  • Great VPN
  • Humor Camera
  • Ignite Clean
  • Leaf Face Scanner
  • Mini camera
  • Print Plant scan
  • Rapid Face Scanner
  • Reward clean
  • Ruddy SMS
  • Soby Camera
  • Spark Wallpaper

If you have already used any of these applications, it is recommended that you uninstall the program and review its subscription page, available from both the web version and the Play Store app. Another key step is to check your credit card bills since June, when malware started operating. Also always important to check the developer before downloading an app and keep an antivirus installed on your smartphone to see the best options for Android.

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