SymbOS/Beselo mobile worm virus in the wild in Asia

Posted on the January 25th, 2008 under Mobile, News, Security by Ryman

A warning to those who uses Symbian OS in their mobile phones. The virus, named SymbOS/Beselo worm, travels by Bluetooth and MMS and is in the wild here in Asia.

It sends itself out in an MMS to every contact in your phone book, plus a number of randomly generated mobile phone numbers. The MMS messages use no subject line and a handful of short texts in their body.

Where this malware gets interesting is in how it attempts to reuse an old technique to disguise itself so that it will be installed by an unsuspecting user. SymbOS/Beselo pretends to be a harmless media file under the names “beauty.jpg”, “love.rm” or “sex.mp3″.

In the case of SymbOS/Beselo, a user will receive an MMS from someone they know and the attachment could be beauty.jpg. The message says “photo” and it comes from a friend, so the user is likely to open it to see the photo. When the request to install pops up, it’s very likely the user will click OK and be infected.

[via avertlabs.com]

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