Judging from what you said, it’s probably a Trojan horse! Because whichever number you use will be stolen. Reinstalling the system will definitely help. However, the following are some methods for your reference. It is not necessary to reinstall the system:

1. Trojan horse situation: (manual anti-virus)

Trojan horse is called "Trojan", and on the Internet , refers to a program that can control the user's computer system, which can cause the system to be damaged or even paralyzed

Trojans can be hidden by: hiding themselves in the taskbar. This is the most basic. Just change the Visible of the Form If the property is set to False and ShowInTaskBar is set to False, the program will not appear in the taskbar when it is running. Invisibility in Task Manager: You can easily disguise yourself by setting a program as a "System Service".

In the win.ini file, under [WINDOWS], "run=" and "load=" are possible ways to load "Trojan horse" programs, and you must pay careful attention to them. Under normal circumstances, there is nothing after their equal sign. If you find that the path and file name followed are not the startup files you are familiar with, your computer may be infected with a "Trojan horse". Of course, you have to see it clearly, because there are many "Trojan horses", such as "AOL Trojan Trojan", which disguise themselves as command.exe files.

In the system.ini file, under [BOOT] there is "shell=filename". The correct file name should be "explorer.exe". If it is not "explorer.exe" but "shell= explorer.exe program name", then the program following it is a "Trojan horse" program, which means that you have been hit by " Trojan horse".

The situation in the registry is the most complicated. Open the Registry Editor through the regedit command, and click to: "HKEY-LOCAL-MACHINE\Software\Microsoft\Windows\CurrentVersion\Run" directory to view Are there any auto-start files that you are not familiar with in the key value, with the extension EXE? Remember here: some "Trojan horse" programs generate files that are very similar to the system's own files, and you want to get past it by pretending, such as "Acid Battery v1.0 Trojan ", which changes the Explorer key value under the registry "HKEY-LOCAL-MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" to Explorer="C:\WINDOWS\expiorer.exe". The "Trojan" program is different from the real The only difference between Explorers is "i" and "l". Of course, there are many places in the registry where "Trojan horse" programs can be hidden, such as: "HKEY-CURRENT-USER\Software\Microsoft\Windows\CurrentVersion\Run", "HKEY-USERS\****\Software\Microsoft \Windows\CurrentVersion\Run" directory. The best way is to find the file name of the "Trojan horse" program under "HKEY-LOCAL-MACHINE\Software\Microsoft\Windows\CurrentVersion\Run", and then in the entire Just search in the registry.

The most effective way to kill "Trojan horses" is to immediately disconnect the computer from the network to prevent hackers from attacking you through the network.

Then edit the win.ini file and change "run="Trojan Horse" program" or "load="Trojan Horse" program" under [WINDOWS] to "run=" and "load="; edit the system.ini file and change [ BOOT] below "shell='Trojan' file", change to: "shell=explorer.exe"; in the registry, use regedit to edit the registry, first in "HKEY-LOCAL-MACHINE\Software\Microsoft\ Find the file name of the "Trojan horse" program under "Windows\CurrentVersion\Run", and then search and replace the "Trojan horse" program in the entire registry. Sometimes it should be noted that some "Trojan horse" programs do not directly replace the "Trojan horse" program. Just delete the "Trojan" key value under "HKEY-LOCAL-MACHINE\Software\Microsoft\Windows\CurrentVersion\Run", because some "Trojans" such as: BladeRunner "Trojan", if you delete it, the "Trojan" will immediately Automatically added, what you need is to write down the name and directory of the "Trojan horse", then return to MS-DOS, find the "Trojan horse" file and delete it. Restart the computer, and then delete the key values ????of all "Trojan horse" files in the registry

2. Use anti-virus software to kill viruses

Of course you can use anti-virus software to kill viruses, but I Personally, I think it is very difficult to use and troublesome, especially when you encounter some powerful Trojans, you will feel miserable. If you use software anti-virus, please find some good anti-virus software. Specifically, you can use Norton, Kaspersky, Rising, and Kingsoft. Of course, you can also use special "Trojan Killer" and other Trojan-killing tools. I personally think that Trojan-killing tools are easier to use than those big-name anti-virus software. Hope this helps!