Update Information and How to Prevent W32. Mydoom. B Depth.

This updated guide examines Update Information and How to Prevent W32. Mydoom. B Depth. and organizes the essential facts, background, and practical takeaways in clear American English.

The B variant of MyDoom computer virus has the following characteristics:

• Prevent computer users from accessing websites with antivirus programs and www.microsoft.com

• Create a "back door" on infected computers to allow any hackers to repair existing viruses that computer users still can't know.

• This virus was created to attack www.microsoft.com next month

Microsoft warns that products will be affected by Mydoom. B virus

1. Microsoft® Outlook®

2. Microsoft Outlook Express

3. Web-based email programs

How to identify a computer that has been infected with Mydoom. B virus

The sequence determines whether or not your computer is infected depending on the operating system you use.

How to determine the operating system you are using

If you use Windows XP program

To determine if the computer is infected, you need to follow the steps as follows:

1. Click Start , and then click Search .

2. In the What do you want to search for box? Click on All files and folders .

3. In the All or part of the file name box , type ctfmon.dll . If this file is in your computer, it means your computer has been infected with Mydoom. B virus. If there is no such file in your computer, it means that your computer is not infected with the B variant of MyDoom virus.

If you use Windows 2000 or Windows NT 4.0 program

To find the virus yourself, you need to do the following:

1. Click Start, then click Run.

2. In the Open box, type cmd

3. Click OK. The black Command Prompt window will open and display C:.>, followed by a pointer symbol.

4. Activate the cursor, type dir ctfmon.dll / a / s and then ENTER.

5. Wait a moment:

If the search results show File Not Found, your computer is not infected with Mydoom. B virus.

If the search results show that File Found and the file size are displayed, your computer has been infected with Mydoom. B virus.

If you use Windows 98 or Windows 95 programs

1. Click Start, then click Run.

2. In the Open box, type Command

3. Click OK. The black Command Prompt window will open and display C:.>, followed by a pointer symbol.

4. Activate the cursor, type dir ctfmon.dll / a / s and then ENTER.

5. Wait a moment:

If the search results show File Not Found, your computer is not infected with Mydoom. B virus.

If the search results show that File Found and the file size are displayed, your computer has been infected with Mydoom. B virus.

How to recover your computer:

How to recover your computer:

If your computer is infected with this virus, contact your antivirus vendor or Microsoft Product Support Services to get help.

One symptom when infected with the MyDoom. B Virus is that you cannot access websites of antivirus vendors and access Microsoft websites such as support.microsoft.com or windowsupdate.microsoft.com. If you experience these symptoms, use the following commands to get access to the website and get instructions on how to recover and prevent:

Use the Run command in Start menu and type cmd to open the command prompt. Inside the command window, type the following commands:

- del / F% systemroot% system32driversetchosts [enter]

- echo # Temporary HOSTS file>% systemroot% system32driversetchosts [enter]

- attrib + R% systemroot% system32driversetchosts [enter]

With Windows NT, you must restart the computer.

With Windows 2000, Windows XP, and Windows 2003, you do not need to restart the computer. Instead, type the following command:

- ipconfig / flushdns [enter]

For more details, visit the addresses of antivirus program providers:

1. Network Associates: http://vil.nai.com/vil/content/v_100988.htm
2. Trend Micro: http://www.trendmicro.com/vinfo/ virusencyclo / default5.asp? VName = WORM_MYDOOM. B
3. Symantec: http://securityresponse.symantec.com/ avcenter/venc/data/w32.mydoom.b@mm.html
4. Computer Associates: http://www3.ca.com/virusinfo/virus.aspx? ID=38114