SymbOS.Lasco.A is a Symbian Series 60 Bluetooth worm that also infects .sis archives. The worm is based on
SymbOS.Cabir, except it also searches for .SIS files on the device and adds itself to them.
Note: Definitions dated prior to January 10, 2005 detect this threat as
SymbOS.Cabir.
Symantec recommends the following to protect against this threat:
- If Bluetooth is not required, it should be turned off.
- If you require the use of Bluetooth, ensure that the device's visibility setting is set to "Hidden" so that it cannot be scanned by other Bluetooth devices.
- Avoid use of device pairing. If it must be used, ensure that all paired devices are set to "Unauthorized". This requires each connection request to be authorized by the user.
- Do not accept unsigned applications (no digital signature) or applications sent from unknown sources. Be absolutely sure of the origin of the application before accepting it.
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