It displays a message on screen every time the mobile phone is switched on.

Symbian

Cabir.M is a worm that only affects mobile phones with a Symbian operating system and with Bluetooth technology built-in. This technology allows wireless connections of electronic devices, such as keyboards, mouses, PDAs, etc.

Cabir.M does not have any damaging effect, as it does only display the message Caribe on screen every time the mobile phone is switched on.

Cabir.A is easy to recognize, as it displays the message Caribe on screen every time the mobile phone is switched on.