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Risk Level 1: Very Low

May 17, 2006
February 13, 2007 12:55:28 PM
Trojan Horse
Systems Affected:
Symbian OS

SymbOS.Mabtal.B is a Trojan horse that runs on the Symbian OS, which is used as the operating system for Nokia Series 60 cellular telephones. The Trojan attempts to install SymbOS.Mabir onto the compromised device.

The Trojan reportedly arrives as the file gnavo.sis. When a user opens this file, the phone installer will display a dialog warning users that the application may be coming from an untrusted source and may cause potential problems.

Note: Virus definitions dated prior to May 17, 2006 may detect this as SymbOS.Cabir.

Antivirus Protection Dates

  • Initial Rapid Release version May 17, 2006
  • Latest Rapid Release version March 5, 2008 revision 053
  • Initial Daily Certified version May 17, 2006
  • Latest Daily Certified version March 5, 2008 revision 054
  • Initial Weekly Certified release date May 17, 2006
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Yana Liu

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