Security software company Trend Micro says a new mobile-phone virus is now in the wild and infecting users.
Trend said the Symbos_cardtrp.a virus originated in Symbian Series 60 mobile phones and could spread to PCs running Windows.
Mobile devices can be infected in three ways. As with other mobile viruses reported in recent months, mobile phones can be infected via Bluetooth short-range wireless links from other devices or via MMS (multimedia messaging service) messages sent over mobile networks.
Users can also become infected by downloading malware onto their phones from the web.
The new virus can also use the phone to infect PCs running Windows. If a user inserts an infected memory card into a PC card slot, the virus could jump over to the PC. It then attempts to spread to other PCs from there.
The spread of mobile viruses to PCs is an increasing threat as mobile users often need to transfer contact details, pictures and other data onto their PCs.
Raimund Genes, president of Trend Micro's European operations, said, “This type of attack may indicate a new type of blended threat to come.”