New versions of mobile OSs like Apple’s iOS and Google’s Android may be in the news of late but for all the publicity both received, older Symbian OSs still make up around half of all smartphones sold in 2009. Advanced threats researcher Paul Ferguson came across a new suspicious application running on the S60 platform.
Calling itself ZvirOK, the application has one primary payload—to send a text message to the number 7250 with the text mumym xxx joker90. The intent behind this is unclear, it could perhaps be related to pay services frequently provided by mobile operators. This could cost the user money, particularly if the fees are high. Beyond that, however, no one can really say for sure.
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