First, the folder that was originally saved to the USB flash drive is gone at once, and the size of the USB flash drive still occupies a certain space (reason: the file or folder is hidden);
second, the files and folders on the USB flash drive are all there, but if you look at its properties, you will find that the original folder of several hundred megabytes has become several KB (reason: the file or folder is hidden and a shortcut is automatically generated);
Third, the folder will be changed to the folder name. exe, which will open in a new window after double clicking, and the phenomenon of 2 will appear (reason: the virus hides the original file or folder, then generates an exe file with the same name, and generates a shortcut to the folder in the subdirectory);
iv. junk log files such as avi.log, mp3.log, mp4.log and mp5.log are automatically generated in the U disk;
U disk, full name of USB flash disk, English name of "USB flash disk". It is a miniature high-capacity mobile storage product that uses USB interface and does not need a physical drive. It is connected with a computer through USB interface to realize plug and play.
the name of USB flash drive originated from a new storage device produced by Netac Technology, which is called "USB flash drive" and is connected by USB interface. After the USB flash drive is connected to the USB interface of the computer, the data of the USB flash drive can be exchanged with the computer. However, the equipment with similar technology produced later can no longer be called "USB flash drive" because Netac has registered its patent, but is renamed as "USB flash drive" with homophonic sound. Later, the name U disk was widely known because it was simple and easy to remember, and it was one of the mobile storage devices. There are many USB flash drives supporting multiple ports on the market, that is, three-way USB flash drives (USB computer port, iOS Apple interface, Android interface).