a backdoor in a computer system is a method of getting access to a computer, while attempting to remain undetected. to create Backdoor in a computer you need to get access to that computer once. Steps 1: go to C:\Windows\System32 over there is a file named sethc.exe which is used to activate sticky keys on your system(by pressing it for 5 times) Step 2: make the backup of that file in any of your drive( don’t rename the backup ) Step 3: go to C:\Windows\System32 there is one more file named cmd.exe you have to rename it to sethc.exe. and have to rename the sethc.exe to cmd.exe but you will not be able to rename both the file because it will ask you to provide administrator permission to rename both the files. to get the permission for both the files you have to follow the steps below:- Right Click on the file> Properties > Security It does not have full control. Click on Advanced > Owner Cl...