18 hours old news but anyway...
How to Tell If a Computer Is Infected with Mydoom.B
For Windows XP
To find out if a computer is infected, do the following:
- Click Start, and then click Search.
- In the What do you want to search for? box, click All files and folders.
- In the All or part of the file name box, type ctfmon.dll. If that file exists on the computer, the computer is infected with Mydoom.B.
- Otherwise, the computer is not infected with that variant of the virus.
For Windows 2000 and Windows NT4
- Click Start, and then click Run.
- In the Open box, type cmd
- Click OK. The black Command Prompt window will open, displaying C:\...> followed by a cursor.
- Click the cursor, type dir ctfmon.dll /a /s and then press ENTER.
- Wait a few moments:
If the results show File Not Found, the computer is not infected with Mydoom.B.
If the results show File Found and the file size is displayed, the computer is infected with Mydoom.B, and you need to follow the steps below.
http://www.microsoft.com/security/antivirus/mydoom.asp