An unofficial Telegram app is secretly loading malicious sites onto the devices of unsuspecting users and running other malicious services in the background without the users' consent.

Symantec researchers discovered the malicious app, named MobonoGram 2019 (detected as Android.Fakeyouwon) and advertised as an unofficial version of the Telegram messaging application with more features than the official and other unofficial versions, according to a July 15 blog post.

“When the broadcast receiver class receives the said events, the AddService class will be summoned, then initiates a few other services, namely AndroidAF, AndroidAL, AndroidPA, AndroidPC, AndroidSH—all without the user’s knowledge,” researchers said in the blog.

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