Three new malicious Trojans aimed at mobile phones running the Symbian operating system have been released into the wild.
The Trojans, malicious programs disguised as legitimate applications, are spread via the Bluetooth short-range wireless technology or through multimedia messages.
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Their appearance has been reported by anti-virus software companies Symantec and F-Secure, which say that infection rates are so far low.
The Bootton.E Trojan is the potentially the worst of the three as it can restart the mobile device and leave corrupted components that render it unusable.
The Pbstealer.D Trojan can send out the infected user’s contact list, notepad and calendar to-do list to other nearby users via Bluetooth. And the Sendtool.A Trojan sends malicious programs to other devices, also via Bluetooth.
Unlike many worms on PCs that can spread quickly without users knowing, these Trojan horses aimed at mobile devices spread as attachments that require users to download them, meaning the infection rate is not expected to be great.