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Risk Level 2: Low

September 28, 1999
February 13, 2007 11:51:32 AM
Trojan Horse

The DonaldD.Trojan is similar to the BackOrifice.Trojan. When installed in Microsoft Windows, this backdoor Trojan horse program enables others to gain full access to the system through a network connection. It consists of two parts: a server application and a client application. Both applications can run under Windows 95, 98, and NT 4.0. The client application, running on one computer, may be used to monitor and control a second computer running the server application.

The port number through which the client controls the server is configurable. However, as long as the port is blocked by a firewall, this Trojan horse will not be able to infiltrate the server. It does not matter whether the TCP or SPX protocol is implemented. There have not been any reports of this program being able to break through a firewall.

Antivirus Protection Dates

  • Initial Rapid Release version September 28, 1999
  • Latest Rapid Release version October 22, 2015 revision 024
  • Initial Daily Certified version September 28, 1999
  • Latest Daily Certified version October 23, 2015 revision 005
  • Initial Weekly Certified release date pending
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Motoaki Yamamura

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