When copying something to the U disk, I suddenly found a file with the suffix named exe icon but the icon of the folder. About two or three hundred K
After sorting by type, I found several such files, all of which have the same size, and the names correspond to the original folders in my USB flash drive, and the original folders are all set to "hidden".
I didn't go to click it, I formatted the U disk directly, there is nothing in it anyway, and I don't know what the program is, maybe it's a virus.
suggestion:
Check "Show hidden folders or directories"
Do not tick "Hide extensions for known files"
After opening the U disk, right-click -> Display -> Details before the operation, and arrange the files according to the file type. If you find suspicious executable files, don't rush.