I don't know if you use a USB flash drive or storage card.
I wonder if you have ever encountered the following situation.
I wanted to check the information about the virus on the Internet, but unfortunately I couldn't find it. Let me talk about it based on my own experience.
Folder viruses with the same name can infect the folders in the system by hiding the original files, and then creating a folder with the same name and suffixed with cmd.exe ". If you open it, it may be infected with other viruses. It is very frequent that the virus often occurs in the USB flash disk and also becomes the main channel of infection.
Solution: Use anti-virus software to kill the virus. You do not have to worry about the normal file being deleted during the killing because the file is hidden. You can't find the original file after virus removal, so don't worry.
①. Use finaldata enterprise as a data recovery tool. You can find it after analyzing it. (However, the speed is slow. If you delete a file by mistake, you can use it. However, this is not recommended)
②. Use WinRAR to open a WinRAR file. Then, just like browsing folders, you can find the file you want, you have to move your hidden folder to another folder, or you can't see it without WinRAR.
③. It seems that the use of portable media is the same as that of WinRAR.
Regarding the prevention of this virus, I personally think that the most important thing is to pack commonly used folders into WinRAR.
Of course there are other methods, such as USB flash drive anti-virus software. Explore by yourself ......