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SymbOS.Cdropper.E

Risk Level 1: Very Low

Discovered:
February 1, 2005
Updated:
February 13, 2007 12:56:56 PM
Type:
Trojan Horse
Systems Affected:
Symbian OS


SymbOS.Cdropper.E is a Trojan Horse that runs on the Symbian OS, which is used as the operating system for Nokia Series 60 cellular telephones. It drops the SymbOS.Cabir.B worm and SymbOS.Locknut Trojan to the compromised device.

Note: Virus definitions dated June 28, 2006 or earlier may detect this threat as SymbOS.Locknut.

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

Antivirus Protection Dates

  • Initial Rapid Release version June 29, 2006
  • Latest Rapid Release version March 3, 2008 revision 035
  • Initial Daily Certified version June 29, 2006
  • Latest Daily Certified version March 3, 2008 revision 037
  • Initial Weekly Certified release date July 5, 2006
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Yana Liu

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