I will show how to create a simple virus that
disables/blocks the USB ports on the computer (PC). As usual I use C programming language to create this virus. Anyone who has the knowledge of C, can easily understand the working of this program.
Once this virus is executed, it will immediately disable all the USB
ports on the computer. As a result, you will not be able to
use your pen drive or any other USB peripheral on the computer. The
source code for this virus is available for download.
1. Download the USB_Block.rar file on to your computer.
2. It contains the following 2 files.
- block_usb.c (source code)
- unblock_usb.c (source code)
3.Compile this Program in C. Upon compilation of block_usb.c you get block_usb.exe which is a simple virus that will block (disable) all the USB ports on the computer upon execution (double click).
4. To test this virus, just run the block_usb.exe file
and insert a USB pen drive (thumb drive). Now you can see that your pen
drive will never get detected. To re-enable the USB ports just run the unblock_usb.exe (you need to compile unblock_usb.c) file. Now insert the pen drive and it should get detected.
