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Android.Spy.5106

Added to the Dr.Web virus database: 2022-10-03

Virus description added:

SHA1:

  • 9496d9a804596dcb27290d508e46fc5a27a714a9

Description

Android.Spy.5106 is a trojan app for Android-powered devices. Its main functionality is stealing other apps’ notifications contents. It also downloads and asks users to install other apps and can display various dialog boxes.

Known versions of the Android.Spy.5106 are built into some unofficial modifications (mods) of WhatsApp messenger, like GBWhatsApp, OBWhatsApp, WhatsApp Plus, and others. Attackers usually spread these trojanized mods through malicious websites.

Android.Spy.5106 #drweb Android.Spy.5106 #drweb

Android.Spy.5106 #drweb

Operating routine

During its operation, the Android.Spy.5106 requests access to manage notifications and read their contents. This particular version of the trojan is targeting notifications from the following apps:

  • com.sec.android.app.samsungapps—a Samsung Galaxy Store (Galaxy Apps)
  • com.android.vending—a Google Play Store

Additionally, this trojan can remotely log the contents of notifications from apps that are on a set list. To do so, it uses various statistics services, like Flurry. With that, the usage of a particular service depends on the malware modification. However, the known Android.Spy.5106 versions do not have such a list.

What’s more, when the host app is used, the trojan covertly downloads an apk file, using an URL received from malicious actors. It then asks the user to install it under the guise of a new version of the app, for which it shows the corresponding dialog box. At the same time, during its launch, Android.Spy.5106 displays another update-related dialog box, where the apk files’ downloading progress is shown.

Moreover, this trojan can display random dialog boxes. The contents in these boxes are also received from the attackers. When the user taps the “Ok” button on this dialog box, a targeted website is loaded in the browser.

Requests to access notifications, functionality to display dialog boxes with custom contents, as well as apk file downloading routine are executed from the modified com.whatsapp.HomeActivity activity of the original WhatsApp application.

Curing recommendations


Android

  1. If the mobile device is operating normally, download and install Dr.Web for Android Light. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web для Android Light onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android