1. Symantec/
  2. Security Response/
  3. Backdoor.SysXXX


Risk Level 1: Very Low

March 12, 2003
February 13, 2007 11:43:08 AM
Trojan Horse
Systems Affected:

Backdoor.SysXXX is a backdoor Trojan program that was written in the Delphi language. Backdoor.SysXXX gives a hacker complete access to your computer.

By default, the Trojan opens two TCP ports, 31,556 and 6,051, which it uses to communicate with the hacker. It notifies the hacker through email or ICQ. Also, Backdoor.SysXXX attempts to terminate various security products and system monitoring tools.

Antivirus Protection Dates

  • Initial Rapid Release version March 13, 2003
  • Latest Rapid Release version March 3, 2008 revision 035
  • Initial Daily Certified version March 13, 2003 revision 002
  • Latest Daily Certified version March 3, 2008 revision 037
  • Initial Weekly Certified release date March 19, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Jason Pan

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2016 Internet Security Threat Report, Volume 21
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