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passhunt.py
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passhunt.py
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#! /usr/bin/env python
# -*- coding: UTF-8 -*-
#
# Copyright (c) 2014, Dionach Ltd. All rights reserved. See LICENSE file.
#
# PassHunt: search directories and sub directories for files containing passwords
# By BB
import os, sys, zipfile, re, datetime, cStringIO, argparse, time, hashlib, unicodedata, platform, string, xml.sax.saxutils
import colorama
import progressbar
import filehunt
app_version = '0.9.1'
###################################################################################################################################
# ____ _
# / ___| | __ _ ___ ___ ___ ___
# | | | |/ _` / __/ __|/ _ \/ __|
# | |___| | (_| \__ \__ \ __/\__ \
# \____|_|\__,_|___/___/\___||___/
#
###################################################################################################################################
class PWDFile(filehunt.AFile):
""" PassFile: class for a file that can check itself for passwords"""
PREFIX_COUNT = 40
SUFFIX_COUNT = 180
def __init__(self, filename, file_dir):
filehunt.AFile.__init__(self, filename, file_dir)
#self.type = None # DOC, ZIP, MAIL, SPECIAL, OTHER
def check_text_regexs(self, text, regexs, sub_path):
"""Uses regular expressions to check for passwords in text"""
hanging_start = -1
last_end = -1
for pass_type, regex in regexs.items():
for pwd_match in regex.finditer(text):
if last_end == -1 or last_end + PWDFile.SUFFIX_COUNT < pwd_match.start() - PWDFile.PREFIX_COUNT:
self.add_password_subtext(hanging_start, text, pwd_match, pass_type, sub_path)
hanging_start = -1
else:
hanging_start = pwd_match.start()
last_end = pwd_match.end()
if hanging_start != -1:
self.add_password_subtext(hanging_start, text, pwd_match, pass_type, sub_path)
def add_password_subtext(self, hanging_start, text, pwd_match, pass_type, sub_path):
if hanging_start == -1:
subtext_start = pwd_match.start()
else:
subtext_start = hanging_start
subtext = text[subtext_start - PWDFile.PREFIX_COUNT : pwd_match.end() + PWDFile.SUFFIX_COUNT]
subtext = filter(lambda x: x in string.printable, subtext)
subtext = subtext.replace('\n',' ').replace('\r',' ').replace('\t',' ').replace(' ',' ').replace(' ',' ')[:150]
self.matches.append(PWD(self.path, sub_path, pass_type, subtext))
class PWD:
"""PWD: A class for recording passwords, their type and where they were found"""
def __init__(self, path, sub_path, pass_type, subtext):
self.path, self.sub_path, self.pass_type, self.pwd = path, sub_path, pass_type, subtext
def __repr__(self):
return '%s: %s' % (self.sub_path, self.pwd)
def get_masked_pwd(self):
return '*%s*' % self.pwd[1:-1]
###################################################################################################################################
# __ __ _ _ _____ _ _
# | \/ | ___ __| |_ _| | ___ | ___| _ _ __ ___| |_(_) ___ _ __ ___
# | |\/| |/ _ \ / _` | | | | |/ _ \ | |_ | | | | '_ \ / __| __| |/ _ \| '_ \/ __|
# | | | | (_) | (_| | |_| | | __/ | _|| |_| | | | | (__| |_| | (_) | | | \__ \
# |_| |_|\___/ \__,_|\__,_|_|\___| |_| \__,_|_| |_|\___|\__|_|\___/|_| |_|___/
#
###################################################################################################################################
def output_report(search_dir, excluded_directories_string, all_files, total_docs, pwds_found, output_file):
css = """<style type="text/css">
table {border-collapse:collapse;}
table, td, th {border:1px solid darkgray;}
td {padding-left:5px; padding-right:5px;}
.t1 {font-weight: bold;}
.s1 {background-color: lightblue;}
.s2 {background-color: yellow;}
.s3 {background-color: orangered;}
.ts {font-weight: normal; font-size: smaller}
</style>"""
report = u'<html><head><title>Pass Hunt Report</title>%s</head><body>\n' % (css)
report += u'<h1>Pass Hunt Report - %s</h1>\n' % (time.strftime("%H:%M:%S %d/%m/%Y"))
report += u'<p>Searched %s\nExcluded %s</p>\n' % (search_dir, excluded_directories_string)
report += u'<p>Command: %s</p>\n' % (' '.join(sys.argv))
report += u'<p>Uname: %s</p>\n' % (' | '.join(platform.uname()))
report += u'<p>Searched %s files. Found %s possible passwords.</p>\n' % (total_docs, pwds_found)
report += u'<table>'
for afile in sorted([afile for afile in all_files if afile.matches]):
report += '<tr><td class="t1 s1"><a href="file://%s">%s</a> (%s %s)</td></tr>\n' % (afile.path, afile.path, afile.size_friendly(), afile.modified.strftime('%d/%m/%Y'))
pwd_list = u'' + u'<br />'.join([u'<b>{0}</b> {1}'.format(pwd.sub_path, esc_xml(pwd.pwd)) for pwd in afile.matches])
report += '<tr><td>%s</td></tr>\n' % pwd_list
if len([afile for afile in all_files if afile.type == 'OTHER']) <> 0:
report += u'<tr><td class="t1 s1">Interesting Files to check separately:</td></tr>\n'
for afile in sorted([afile for afile in all_files if afile.type == 'OTHER']):
report += u'<tr><td><a href="file://%s">%s</a> (%s %s)</td></tr>\n' % (afile.path, afile.path, afile.size_friendly(), afile.modified.strftime('%d/%m/%Y'))
report += u'</table></body></html>'
print colorama.Fore.WHITE + 'Report written to %s' % filehunt.unicode2ascii(output_file)
filehunt.write_unicode_file(output_file, report)
def esc_xml(s):
if s:
return xml.sax.saxutils.escape(s)
else:
return ''
###################################################################################################################################
# __ __ _
# | \/ | __ _(_)_ __
# | |\/| |/ _` | | '_ \
# | | | | (_| | | | | |
# |_| |_|\__,_|_|_| |_|
#
###################################################################################################################################
if __name__ == "__main__":
colorama.init()
# defaults
search_dir = u'C:\\'
output_file = u'passhunt_%s.html' % time.strftime("%Y-%m-%d-%H%M%S")
regex_string = u'password'
excluded_directories_string = u'C:\\Windows,C:\\Program Files,C:\\Program Files (x86)'
text_extensions_string = u'.doc,.xls,.xml,.txt,.csv,.config,.ini,.vbs,.vbscript,.bat,.pl,.asp,.sh,.php,.inc,.conf,.inf,.reg'
zip_extensions_string = u'.docx,.xlsx,.zip'
special_extensions_string = u'.msg'
mail_extensions_string = u'.pst'
other_extensions_string = u'.ost,.accdb,.mdb,.kdb,.asc,.cer,.crt,.pem,.der' # checks for existence of files that can't be checked automatically
# Command Line Arguments
arg_parser = argparse.ArgumentParser(prog='passhunt', description='PassHunt v%s: search directories and sub directories for documents containing passwords.' % (app_version), formatter_class=argparse.ArgumentDefaultsHelpFormatter)
arg_parser.add_argument('-s', dest='search', default=search_dir, help='base directory to search in')
arg_parser.add_argument('-r', dest='regex', default=regex_string, help='regular expression to search for')
arg_parser.add_argument('-x', dest='exclude', default=excluded_directories_string, help='directories to exclude from the search')
arg_parser.add_argument('-t', dest='textfiles', default=text_extensions_string, help='text file extensions to search')
arg_parser.add_argument('-z', dest='zipfiles', default=zip_extensions_string, help='zip file extensions to search')
arg_parser.add_argument('-e', dest='specialfiles', default=special_extensions_string, help='special file extensions to search')
arg_parser.add_argument('-m', dest='mailfiles', default=mail_extensions_string, help='email file extensions to search')
arg_parser.add_argument('-l', dest='otherfiles', default=other_extensions_string, help='other file extensions to list')
arg_parser.add_argument('-o', dest='outfile', default=output_file, help='HTML output file name for report')
args = arg_parser.parse_args()
search_dir = unicode(args.search)
output_file = unicode(args.outfile)
regex_string = unicode(args.regex)
excluded_directories_string = unicode(args.exclude)
text_extensions_string = unicode(args.textfiles)
zip_extensions_string = unicode(args.zipfiles)
special_extensions_string = unicode(args.specialfiles)
mail_extensions_string = unicode(args.mailfiles)
other_extensions_string = unicode(args.otherfiles)
excluded_directories = [exc_dir.lower() for exc_dir in excluded_directories_string.split(',')]
search_extensions = {}
search_extensions['TEXT'] = text_extensions_string.split(',')
search_extensions['ZIP'] = zip_extensions_string.split(',')
search_extensions['SPECIAL'] = special_extensions_string.split(',')
search_extensions['MAIL'] = mail_extensions_string.split(',')
search_extensions['OTHER'] = other_extensions_string.split(',')
# TO DO: how about network drives, other databases?
pass_regexs = {'password': re.compile(regex_string, re.IGNORECASE)}
# find all files to check
all_files = filehunt.find_all_files_in_directory(PWDFile, search_dir, excluded_directories, search_extensions)
# TODO: search for filenames containing 'password', and encrypted zip/documents
# check each file
total_docs, doc_pans_found = filehunt.find_all_regexs_in_files([afile for afile in all_files if not afile.errors and afile.type in ('TEXT','ZIP','SPECIAL')], pass_regexs, search_extensions, 'Pwd')
# check each pst message and attachment
total_psts, pst_pans_found = filehunt.find_all_regexs_in_psts([afile for afile in all_files if not afile.errors and afile.type == 'MAIL'], pass_regexs, search_extensions, 'Pwd')
pans_found = doc_pans_found + pst_pans_found
# report findings
output_report(search_dir, excluded_directories_string, all_files, total_docs, pans_found, output_file)