[RaveN]

Вот как определить, есть у тебя вирус, или его нет (microsoft.com):

To find out if a computer is infected, do the following:

Click Start, and then click Run.
In the Open box, type:
"cmd"
Click OK. The black Command Prompt window will open, displaying "C:\...>".
Type "cd \" and press ENTER. This will change the current directory to "C:\" followed by a cursor.
To check for Mydoom.A, click the cursor, and then type:
"dir shimgapi.dll /a /s"
Press ENTER.
Wait a few moments:
If the results show File not found, the computer is not infected with Mydoom.A.
If the results show Total files listed (see Figure 1, below; note: your Directory of results may vary) and the file size is displayed, the computer is infected with Mydoom.A, and you need to contact your antivirus vendor.
To check for Mydoom.B, click the cursor, and then type:
"dir ctfmon.dll /a /s"
Wait a few moments:
If the results show File not found, the computer is not infected with Mydoom.B.
If the results show Total files listed (see Figure 2, below; note: your Directory of results may vary) and the file size is displayed, the computer is infected with Mydoom.B, and you need to follow the steps below.