The Nigerian Communications Commission, NCC has alerted the public of the existence of a virus known as "Schoolyard Bully".
The commission says the malware has so far attacked over three hundred thousand Android devices, by stealing Facebook account credentials.
It adds that the malicious apps spread via third-party Android app shops.
The NCC is, therefore, urging users to only download applications from official sites and application stores.
It further recommends that users double-check applications and uncheck boxes that request third-party downloads when installing apps downloaded from Google Play Store.
It is also urging Nigerians to use anti-malware applications to routinely scan their devices.