How do I remove a backdoor and how do I remove it?

Once discovered, boot with a Windows98 disc and delete it under DOS.

Turn off System Restore and then enter Safe Mode to disinfect viruses.

Kill it again in safe mode.

It belongs to the driver-level loading, and it cannot be cleared even in safe mode.

1. If there is a dual system, go to the other one and delete the file.

2. If you don't have a dual system, use F-Secure's black light tool.

Anti-rootkit hijacking.

The backdoor is the Trojan horse. With the official version of 360 Security Guard. Open the 360 Security Guard software - click on System Repair, click on "One-click Repair" in the lower right corner after scanning - click on the cleaning plug-in, if there is a bad comment plug-in, check the previous one.

Click on "Clean Now" in the bottom right corner - in Clean System Junk. -- Cleaning up system junk. - Click on the Trojan to use the full scan function, and if you find a threatening program, click "Deal with it now" in the lower right corner.

Friends can install a 360 security guard to detect and fix this problem.

With a tool similar to XP Explorer, you can remove some of the system's default shares, and 360 Total Guard can find things that are not safe.

There will be one by default, and it is not normal to have a few.

If the antivirus software can tell you that it is a specific file that contains the virus, you can use Killbox to forcibly delete it.

Killbox is a tool that forcibly deletes any file, including running programs, without having to do it in safe mode.

If you really can't delete it, isolate it first.

Operation: 1. Right-click in Internet Explorer - Properties - Delete cookies; delete files; Clear history.

2. Open the registry (start-run and enter regedit), and search (find) the file name reported as a virus. Respectively,. If you find it, delete it (it is recommended to export the backup first).

3. In safe mode, the file name will be reported as a virus, find it in the system file and delete it. Such as: c:

winnt\ ,c:\winnt\system32\ .Delete it once you find it.

Then use Kaspersky to do a full scan to see if you can get rid of the virus.

4. We strongly recommend that you update your operating system patches in a timely manner.