1. Symantec/
  2. Security Response/
  3. Backdoor.Graybird.C


Risk Level 1: Very Low

April 15, 2003
February 13, 2007 11:45:39 AM
Also Known As:
Backdoor.GrayBird [KAV]
Trojan Horse
Systems Affected:

Backdoor.Graybird.C is a Backdoor Trojan and a variant of Backdoor.Graybird. It gives a hacker unauthorized access to your computer. It opens port 52013 to listen for commands. The existence of the file, HGZSERVER.EXE, is an indication of a possible infection.

The Trojan uses this icon:

to attempt to disguise itself as an ordinary .txt file.

This threat is written in Delphi.

Antivirus Protection Dates

  • Initial Rapid Release version April 16, 2003
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version April 16, 2003
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date April 16, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Robert X Wang

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