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SymbOS.Cdropper.I

Risk Level 1: Very Low

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Discovered:
June 28, 2006
Updated:
February 13, 2007 12:56:58 PM
Type:
Trojan Horse
Systems Affected:
Symbian OS


SymbOS.Cdropper.I 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 worm and SymbOS.Locknut Trojan to the compromised device.

The Trojan horse reportedly arrives as MMFpatch.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 August 20, 2008 revision 017
  • Initial Daily Certified version June 29, 2006
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date July 5, 2006
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy

Damage

  • Damage Level: Low

Distribution

  • Distribution Level: Low
Writeup By: Yana Liu
Summary| Technical Details| Removal

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