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  3. SymbOS.Cardblock.A


Risk Level 1: Very Low

October 3, 2005
February 13, 2007 12:45:03 PM
Trojan Horse
Systems Affected:

SymbOS.Cardblock.A is a Trojan horse that affects Symbian series 60 phones.

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 can not 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.

Antivirus Protection Dates

  • Initial Rapid Release version October 4, 2005
  • Latest Rapid Release version March 19, 2015 revision 009
  • Initial Daily Certified version October 4, 2005
  • Latest Daily Certified version March 19, 2015 revision 018
  • Initial Weekly Certified release date October 5, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Yana Liu

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