Symantec.com > Security Response > Backdoor.Threadsys

Backdoor.Threadsys

Risk Level 1: Very Low

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Discovered: January 10, 2004
Updated: February 13, 2007 12:16:00 PM
Type: Trojan Horse
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


Backdoor.Threadsys is a backdoor Trojan horse that connects to a predefined server and sends confidential information, including system information and captured keystrokes. The Trojan can receive information, allowing unauthorized remote access.

Protection

  • Initial Rapid Release version January 12, 2004
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version January 12, 2004
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date January 14, 2004

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: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: Low

Writeup By: Eric Chien
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