Smartphone users running the Symbian operating system are being targeted with a new Trojan worm that can steal their data and use their device as a spam relay station.
The China-sourced Sexy View malware has been targeting handsets running the latest Symbian S60 Third Edition software. Earlier versions of the OS are not believed to be vulnerable.
The malware spreads via a text message with headings like "sexy view" or "play boy", says an advisory from security firm F-Secure.
The attacks target both English and Chinese language smartphones.
Once installed, the malware attempts to turn off several application management utilities, before trying to open a connection to a remote server.
Once connected, user details are collected and text messages are sent to everyone in the victim's contact list.