#!/usr/bin/env python3
# -*-coding:UTF-8 -*
"""
The Credential Module
=====================
This module is consuming the Redis-list created by the Categ module.
It apply credential regexes on paste content and warn if above a threshold.
It also split the username and store it into redis for searching purposes.
Redis organization:
uniqNumForUsername: unique number attached to unique username
uniqNumForPath: unique number attached to unique path
-> uniqNum are used to avoid string duplication
AllCredentials: hashed set where keys are username and value are their uniq number
AllCredentialsRev: the opposite of AllCredentials, uniqNum -> username
AllPath: hashed set where keys are path and value are their uniq number
AllPathRev: the opposite of AllPath, uniqNum -> path
CredToPathMapping_uniqNumForUsername -> (set) -> uniqNumForPath
"""
import time
import sys
from packages import Paste
from pubsublogger import publisher
from Helper import Process
import datetime
import re
import redis
from pyfaup.faup import Faup
#split username with spec. char or with upper case, distinguish start with upper
REGEX_CRED = "[a-z]+|[A-Z]{3,}|[A-Z]{1,2}[a-z]+|[0-9]+"
REDIS_KEY_NUM_USERNAME = 'uniqNumForUsername'
REDIS_KEY_NUM_PATH = 'uniqNumForUsername'
REDIS_KEY_ALL_CRED_SET = 'AllCredentials'
REDIS_KEY_ALL_CRED_SET_REV = 'AllCredentialsRev'
REDIS_KEY_ALL_PATH_SET = 'AllPath'
REDIS_KEY_ALL_PATH_SET_REV = 'AllPathRev'
REDIS_KEY_MAP_CRED_TO_PATH = 'CredToPathMapping'
if __name__ == "__main__":
publisher.port = 6380
publisher.channel = "Script"
config_section = "Credential"
p = Process(config_section)
publisher.info("Find credentials")
minimumLengthThreshold = p.config.getint("Credential", "minimumLengthThreshold")
faup = Faup()
server_cred = redis.StrictRedis(
host=p.config.get("ARDB_TermCred", "host"),
port=p.config.get("ARDB_TermCred", "port"),
db=p.config.get("ARDB_TermCred", "db"),
decode_responses=True)
server_statistics = redis.StrictRedis(
host=p.config.get("ARDB_Statistics", "host"),
port=p.config.getint("ARDB_Statistics", "port"),
db=p.config.getint("ARDB_Statistics", "db"),
decode_responses=True)
criticalNumberToAlert = p.config.getint("Credential", "criticalNumberToAlert")
minTopPassList = p.config.getint("Credential", "minTopPassList")
regex_web = "((?:https?:\/\/)[-_0-9a-zA-Z]+\.[0-9a-zA-Z]+)"
#regex_cred = "[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}:[a-zA-Z0-9\_\-]+"
regex_cred = "[a-zA-Z0-9\\._-]+@[a-zA-Z0-9\\.-]+\.[a-zA-Z]{2,6}[\\rn :\_\-]{1,10}[a-zA-Z0-9\_\-]+"
regex_site_for_stats = "@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}:"
while True:
message = p.get_from_set()
if message is None:
publisher.debug("Script Credential is Idling 10s")
#print('sleeping 10s')
time.sleep(10)
continue
filepath, count = message.split(' ')
paste = Paste.Paste(filepath)
content = paste.get_p_content()
creds = set(re.findall(regex_cred, content))
if len(creds) == 0:
continue
sites= re.findall(regex_web, content) #Use to count occurences
sites_set = set(re.findall(regex_web, content))
message = 'Checked {} credentials found.'.format(len(creds))
if sites_set:
message += ' Related websites: {}'.format( (', '.join(sites_set)) )
to_print = 'Credential;{};{};{};{};{}'.format(paste.p_source, paste.p_date, paste.p_name, message, paste.p_rel_path)
print('\n '.join(creds))
#num of creds above tresh, publish an alert
if len(creds) > criticalNumberToAlert:
print("========> Found more than 10 credentials in this file : {}".format( filepath ))
publisher.warning(to_print)
#Send to duplicate
p.populate_set_out(filepath, 'Duplicate')
msg = 'infoleak:automatic-detection="credential";{}'.format(filepath)
p.populate_set_out(msg, 'Tags')
#Put in form, count occurences, then send to moduleStats
creds_sites = {}
site_occurence = re.findall(regex_site_for_stats, content)
for site in site_occurence:
site_domain = site[1:-1]
if site_domain in creds_sites.keys():
creds_sites[site_domain] += 1
else:
creds_sites[site_domain] = 1
for url in sites:
faup.decode(url)
domain = faup.get()['domain']
## TODO: # FIXME: remove me
try:
domain = domain.decode()
except:
pass
if domain in creds_sites.keys():
creds_sites[domain] += 1
else:
creds_sites[domain] = 1
for site, num in creds_sites.items(): # Send for each different site to moduleStats
mssg = 'credential;{};{};{}'.format(num, site, paste.p_date)
print(mssg)
p.populate_set_out(mssg, 'ModuleStats')
if sites_set:
print("=======> Probably on : {}".format(', '.join(sites_set)))
date = datetime.datetime.now().strftime("%Y%m")
for cred in creds:
maildomains = re.findall("@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,20}", cred.lower())[0]
faup.decode(maildomains)
tld = faup.get()['tld']
## TODO: # FIXME: remove me
try:
tld = tld.decode()
except:
pass
server_statistics.hincrby('credential_by_tld:'+date, tld, 1)
else:
publisher.info(to_print)
print('found {} credentials'.format(len(creds)))
#for searching credential in termFreq
for cred in creds:
cred = cred.split('@')[0] #Split to ignore mail address
#unique number attached to unique path
uniq_num_path = server_cred.incr(REDIS_KEY_NUM_PATH)
server_cred.hmset(REDIS_KEY_ALL_PATH_SET, {filepath: uniq_num_path})
server_cred.hmset(REDIS_KEY_ALL_PATH_SET_REV, {uniq_num_path: filepath})
#unique number attached to unique username
uniq_num_cred = server_cred.hget(REDIS_KEY_ALL_CRED_SET, cred)
if uniq_num_cred is None: #cred do not exist, create new entries
uniq_num_cred = server_cred.incr(REDIS_KEY_NUM_USERNAME)
server_cred.hmset(REDIS_KEY_ALL_CRED_SET, {cred: uniq_num_cred})
server_cred.hmset(REDIS_KEY_ALL_CRED_SET_REV, {uniq_num_cred: cred})
#Add the mapping between the credential and the path
server_cred.sadd(REDIS_KEY_MAP_CRED_TO_PATH+'_'+str(uniq_num_cred), uniq_num_path)
#Split credentials on capital letters, numbers, dots and so on
#Add the split to redis, each split point towards its initial credential unique number
splitedCred = re.findall(REGEX_CRED, cred)
for partCred in splitedCred:
if len(partCred) > minimumLengthThreshold:
server_cred.sadd(partCred, uniq_num_cred)