kill_all.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <errno.h>
#include <assert.h>
#include <unistd.h>
#include <pthread.h>
#include <time.h>

/* WolfHound: Wolf Killing Dog
 *
 * AKA "stop_all_hackers.c
 *
 * Script created by SIGTERM h2kchicken/notballin)
 *
 * How to use:
 * Ensure that you have multiple terminals open, be they individual windows,
 * multiple tabs, or multiplexed via TMUX.
 *
 * This script has only been tested with "gcc" and "clang" specifically. Other
 * compilers have not been tested (t hough testing should be easy as adding
 * another Loop and adding the binary name).
 */

#define tput(X, ...)  fprintf(stdout, "\x1B[34m" X "\x1B[0m", __VA_ARGS__)

void *
_(void * shell)
{
    char cmd[256];

    sprintf(cmd, "killall %s -q -v -y 5s >/dev/null 2>&1", (char *)shell);
    do {
#pragma unroll
    for (int i = 0; i < 60; i++) {
        sleep(1);
        system(cmd);
    }} while(true);

    pthread_exit(NULL);
}

int
main(int argc, char ** argv)
{
    (void)argc;
    (void)argv;

    char   d[1024];
    time_t t = time(NULL);
    char * sh;

    if (getuid() != 0) {
        printf("Not Root.\n");
        exit(EXIT_FAILURE);
    }

    strftime(d, sizeof(d), "%Y-%m-%d", localtime(&t));

    tput("Checking Installed Shells : %s\n", d);

    setusershell();

    while ((sh = getusershell())) {
        printf("%s\n", sh);
    }

    printf("\n");

    tput("Forking Loops : %s\n", d);

    sleep(5);


    pthread_t stop_sh_hacker_hdl;
    pthread_t stop_bs_hacker_hdl;

    pthread_create(&stop_sh_hacker_hdl, NULL, _, (void *)"sh");
    pthread_detach(stop_sh_hacker_hdl);

    pthread_create(&stop_bs_hacker_hdl, NULL, _, (void *)"bash");
    pthread_detach(stop_bs_hacker_hdl);

    tput("Begin tests by opening shells (as both a regular user and a user with root privileges %s\n", d);

    /*
     * In denying yourself the ability to open new terminals, you deny an
     * attacker the ability to open terminals. The terminal that an attacker
     * relies on during a hack resides on the user's PC.
     */

    /*No Ego, but...
     * To the NSA: YOU FUCKING LOSE.
     */
    return 0;
} /* main */