Microsoft KB Archive/249282

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Article ID: 249282

Article Last Modified on 2/28/2007


  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows 2000 Datacenter Server

This article was previously published under Q249282


When you scan a computer that is running Windows 2000 Release Candidate 2 (RC2) or Release Candidate 3 (RC3), some virus-scanning software may find the Backdoor-BI Trojan virus in the Coadmin.dll file in the %SystemRoot%\System32 folder.


Older signature files for some scanning software may cause this behavior to occur


The detection of this virus is false. There is no virus in the Coadmin.dll file. Update your virus-scanning software to the latest version of its signature files to resolve this issue, or contact your virus-scanning software vendor for additional information. Note that many virus-scanning programs allow you to configure a filter not to scan particular files. You may want to configure your virus-scanning software not to scan this file until you obtain newer signature files.


The Coadmin.dll file is installed when you install the Microsoft Internet Information Services (IIS) service.

Keywords: kb3rdparty kbprb KB249282