usr25

#!/usr/bin/python3

#Author :: z3r0day


RED = '\033[1;31;48m'
WHITE = "\33[0m"
GREEN = '\033[1;32;48m'


#SMTP USER BRUTEFORCE

import socket
import sys
import os
import time
import signal
import time
import threading

#importing the required libraries

golo = '''
                            ,--.
                           {    }
                           K,   }
                          /  ~Y`
                     ,   /   /
                    {_'-K.__/
                      `/-.__L._
                      /  ' /`\_}
                     /  ' /
             ____   /  ' /
      ,-'~~~~    ~~/  ' /_
    ,'             ``~~~  ',
   (                        Y
  {                         I
 {      -                    `,
 |       ',                   )
 |        |   ,..__      __. Y
 |    .,_./  Y ' / ^Y   J   )|
 \           |' /   |   |   ||
  \          L_/    . _ (_,.'(
   \,   ,      ^^""' / |      )
     \_  \          /,L]     /
       '-_~-,       ` `   ./`
          `'{_            )
              ^^\..___,.--`  
'''


#conditional statement for grabing [sys] arguments for username and ip address

print(golo)
time.sleep(1)
print(f"\n [{GREEN}+{WHITE}] {RED}USR-25{WHITE} (v3.0) starting...\n")

#check for correct number of arguments
if len(sys.argv) != 3:
	print(f"\n Usage: ./usr25 <{RED}target-ip{WHITE}> <{GREEN}wordlist{WHITE}> \n")
	sys.exit(0)

target_ip = sys.argv[1]
user_file = sys.argv[2]
#grabbing the necessary arguments

#check if the given file exists on the system
if os.path.exists(user_file) == False:
	print(f'\n[{RED}!{WHITE}]File Not Found....exiting now..\n')
	sys.exit(0)

def brute(ip, word):
			#socket connection
			s = socket.socket()
			s.connect((ip, 25))
			s.recv(1024)
			#here comes the command
			s.send(f'VRFY {user}\r\n'.encode())
			answer = s.recv(1024).decode()
			if not "unknown" in answer.lower():
				print(f"[{GREEN}+{WHITE}] {RED}{user}{WHITE} does exist")
			s.close()

with open(user_file, 'r') as file:
	for line in file.readlines():
		user = line.strip()
		brute(target_ip, user)