Android device adware, fake apps, banking Trojans


Adware remains the number one threat to Android phones and tablets, according to a new study by digital security company Avast.

According to a survey, adware made up 45% of mobile threats in the first five months of 2021. Fake apps came in second with 16% and banking Trojans came in third with 10%. Other types of malware include downloaders, spyware, and locker / mobile ransomware.

Adware displays annoying advertisements and lures users into downloading adware under the guise of legitimate apps.

A recent example of the widespread adoption of adware is the Hidden Ads family, which Avast last reported on in October.

Avast has seen two main types of adware. The “traditional” type is any game, photo, or other lifestyle application that looks attractive, attracts users to download, and spams advertisements inside and outside the app. Another common type is advertising fraud. When downloaded, this adware will silently initiate malicious activity and use non-content targeted ads, ads in notifications, or other aggressive advertising techniques.

Adware can also serve ads that contain harmful content. Hence, protection against adware is very important. In the event of advertising fraud, the app can automatically download encrypted files that trigger ad clicks or sign up for premium services without the knowledge of the user.

The second most common mobile threat, fake apps, is disguised as an illegitimate app, like the trusted Covid-19 trace app or AdBlocker, an example of Avast’s mobile threat. Researchers observed in the first few months of 2021. Fake apps can contain features that spy on users and expose them to advertising and other malicious activity.

Banking Trojans or “bunkers” work covertly to gain the trust of users who download the app and steal banking information. Banking Trojans disguise themselves as real apps to access banking information of unsuspecting users by mimicking login screens under the guise of legitimate banking applications or by displaying their respective bank logos. Provide your bank account details by providing a login screen.

“Our smartphones and devices are our daily companions, especially since the recent pandemic, and when the phone and its data is exposed to mobile malware it can be a real nuisance or a serious security risk. There are, ”says Ondrej David on the phone, an Avast threat analyst.

“Mobile malware, especially adware, is often delivered in the form of harmless-looking games and entertainment apps, but what users don’t know is that the device is doing malicious activity in the background. is. ”


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