The Nigerian Communications Commission has alerted Nigerians to the resurgence of Joker Trojan-Infected Android Apps on Google Play Store that authorises payments for fraudsters.
The NCC’s Director of Public Affairs, Dr Ikechukwu Adinde, made this known in a statement on Sunday.
The commission said that the app could click on online ads automatically and even use SMS One-Time Password to secretly approve payments without checking bank statements.
NCC further said that other actions, such as stealing text messages, contacts, and other device data, were also possible with the app.
Android users should avoid downloading unnecessary apps or installing apps from unofficial sources.
The statement read, “Additionally, in a related advisory, the NCC, based on another detection by CSIRT, wishes to inform the general public about the resurgence of Joker Trojan-Infected Android Apps on Google Play Store. This arose due to the activities of criminals who intentionally download legitimate apps from the Play Store, modify them by embedding the Trojan malware and then uploading the app back to the Play Store with a new name.
“The malicious payload is only activated once the apps go live on the Play Store, which enables the apps to scale through Google’s strict evaluation process. Once installed, these apps request permissions that once granted, enable the apps to have access to critical functions such as text messages and notifications.
“As a consequence, a compromised device will subscribe unwitting users to premium services, billing them for services that do not exist. A device like this can also be used to commit Short Messaging Service fraud while the owner is unaware.
“It can click on online ads automatically and even use SMS One Time password to secretly approve payments. Without checking bank statements, the user will be unaware that he or she has subscribed to an online service. Other actions, such as stealing text messages, contacts, and other device data, are also possible.”
To avoid falling victim to the manipulation of hackers deploying Joker Trojan-Infected Android Apps, Android users have been advised to avoid downloading unnecessary apps or installing apps from unofficial sources.
“The NCC also wishes to advise telecom consumers to ensure that apps installed from the Google Play Store are heavily scrutinized by reading reviews, assessing the developers, perusing the terms of use and only granting the necessary permissions.
“Conclusively, the NCC recommends that unauthorised transactions be checked against any installed app. Indeed, any apps not in use should be deleted while users are also advised to ensure that a device is always patched and updated to the latest software,” it added.