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December 31, 2020
Our December analysis of Dr.Web’s statistics revealed a 11.49% decrease in the total number of threats compared to the previous month. The number of unique threats also dropped by 24.51%. Adware and malware browser extensions still made up the majority of detected threats. Email traffic was dominated by various malware that includes the Trojan.SpyBot.699 banking trojan, an obfuscated stealer written in VB.NET and malicious programs exploiting vulnerabilities in Microsoft Office utilities.
The number of requests to decrypt files affected by trojan encoders decreased by 31.54% compared to November. Trojan.Encoder.26996 was the most active, accounting for 37.14% of all incidents.
The most common threats in December:
In December, Doctor Web’s virus laboratory registered 28.41% fewer requests to decode files encoded by trojan ransomware than in November.
In December 2020, Doctor Web added 105,840 URLs to the Dr. Web database of non-recommended websites.
|November 2020||December 2020||Dynamics|
|+ 154,606||+ 105,840||- 31.54%|
In December, Dr.Web’s statistics for Android devices confirmed an almost 25.34% decrease in the total number of threats on protected devices compared with November. Users most often encountered adware trojans, as well as malicious applications that download other software and execute arbitrary code.
Another threat, Android.Joker.477, was detected in the Google Play catalog. It was hidden within an application with an image collection. It was capable of running arbitrary code and subscribing Android users to paid services.
Also in December, various banking trojans attacked users of Android devices.
The following December events related to mobile malware are the most noteworthy:
Find out more about malicious and unwanted programs for mobile devices in our special overview.
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