Aggressive Trojan Spreads Through Cell Phone Messages

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Think your cell phone is safe from viruses? Think your personal data on them is safe? Think again.

A variant of the Cabir mobile virus, called Mabir, has been targeting mobile phones using the Symbian Series 60 operating system. Mabir is capable of spreading via Bluetooth or by a phone's messaging service.

While the Cabir virus proved mobile attacks can be quite effective, Mabir takes mobile viruses to next step by being more aggressive than its predecessor. Security experts at F-Secure indicate once a phone is infected with Mabir, it actively looks for methods with which to infect other phones. (What's next?)

According to their summary, Mabir will use a phone's Bluetooth capabilities to find other phones it can infect. Once it has located such a device, Mabir sends infected files to it.

The SIS files that Mabir.A sends have always the same file name: caribe.sis.

Not stopping there, Mabir also waits for an infected phone to receive a MMS (multimedia) or SMS message. Once received, Mabir responds with an infected MMS message containing an info.sis file. Mabir's MMS does not feature any text, just the virus installation file. If the tainted file is installed, the virus continues its attempts to propagate itself by infecting other phones.

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cellmagic
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