Security researchers from Dr.web found Trojan preinstalled on several mobile devices, along with Leagoo M5 Plus, Leagoo M8, Nomu S10, and Nomu S20.

Android.Triada families use to embed in system libraries that used in launching applications on mobile devices. Android.Triada.231 that detected by Dr.web doesn’t try to root the phones and to escalate privileges as like other Trojan in the family.

Android.Triada.231 is embedded into which get control each time when the system makes records on the log. Zygote used in the process of launching Trojan for the first time.

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Trojan once executed use to create a working directory launch it’s parameters and check for the environment it is running. If it is Dalvik environment(discontinued by Google) trojan use to launch attacks immediately after they start.┬áDr.web published a detailed report.


The major role of Android.Triada.231 is to run silently and to download additional modules. As the Trojans are included within system libraries it is not possible to delete using standard methods.

Moreover, Android.Triada.231 can extract the module Android.Triada.194.origin from, which is stored in the library in the encrypted form. Its main function is downloading additional malicious components from the Internet, as well as ensuring their interaction with each other. Says Dr.Web

The best method to get rid of the Trojan infection is to install the clean Android firmware.It is capable of penetrating various application modules, attackers can make use of trojan to download malicious plugins for stealing confidential information from bank applications, messengers etc.

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