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SymbianOS Worm

US-CERT is aware of public reports of a malicious SymbianOS worm that may be spreading on mobile phone networks.

The SymbOS/Beselo.A! worm may affect mobile devices running SymbianOS using MMS and Bluetooth. It is reported that this worm spreads by convincing users to install an incoming file that contains the malicious code. These malicious files are noted to have, but are not limited to, the following file names:

  • Beauty.jpg
  • Sex.mp3
  • Love.rm
US-CERT  encourages users to
  • Use caution when accepting incoming files via MMS and Bluetooth
  • Secure Bluetooth connections to prevent access from unauthorized devices
  • Install anti-virus software and keep its virus signature files up-to-date