The more Android/Smartphones that are registered, the more hackers try to access your phone by unscrupulous means.

This time they are posing as an Anti-Virus Software(see image(Opera Virus Scanner)).

The following was taken from ZDNet

If the user clicks on the link, they’ll be asked to download VirusScanner.apk, which is currently detected      as   Trojan-SMS.AndroidOS.Scavir. If the user is using a non-Android device, they’ll be asked to download                       VirusScanner.jar currently detected as Trojan-SMS.J2ME.Agent.ij.

The migration of scareware also known as fake antivirus software to mobile platforms, was a logical development largely anticipated by industry watchers.

Source

Be on your guard when downloading 3rd Party apk’s, always scan with an Anti Virus Scanner. You can read a review that my colleague wrote about back in June last Year, Anti-Virus Free