def run(self):
"""
"""
print "network sniffer started, pid=%s" % self.pid
# apply BPF filter
# see http://biot.com/capstats/bpf.html
# bpf restrict to TCP only, note libnids caution about fragments
nids.param('pcap_filter', self.bpf_filter)
# various settings - may be essential
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param("scan_num_hosts", 0) # disable portscan detection
#nids.param("scan_num_ports", 0)
#nids.param("scan_delay", 0)
nids.param("pcap_timeout", 64)
nids.param("multiproc", True)
nids.param("tcp_workarounds", True)
#nids.param("filename", sys.argv[1]) # read a pcap file?
nids.param("device", self.interface_name) # read from network device
# bootstrap
nids.init()
self.drop_root_privileges()
nids.register_tcp(self.tcp_stream_handler)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def main():
#nids.param("pcap_filter", "tcp") # bpf restrict to TCP only, note
# libnids caution about fragments
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
if len(sys.argv) == 2: # read a pcap file?
nids.param("filename", sys.argv[1])
nids.init()
nids.register_tcp(handleTcpStream)
nids.register_udp(handleUDP)
nids.register_ip(handleIp)
print "pid", os.getpid()
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def main():
"""
Initialise libnids and process the pcap. This is taken from the pynids
example code.
"""
nids.param("pcap_filter", "tcp") # bpf restrict to TCP only, note
# libnids caution about fragments
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
if len(sys.argv) == 2: # read a pcap file?
nids.param("filename", sys.argv[1])
nids.init()
nids.register_tcp(handleTcpStream)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def main(arg1):
global count
global responses
global responses_headers
global response
global response_header
#global openstreams
#pcaps_file = os.listdir(arg1)
#for pcap_file in pcaps_file:
#print pcap_file
#responses_headers = []
#openstreams = {}
#responses = []
#print "Atleast entered here"
#nids.param("pcap_filter", "tcp") # bpf restrict to TCP only, note
# libnids caution about fragments
nids.param("scan_num_hosts", 0) # disable portscan detection
#if len(sys.argv) == 2: # read a pcap file?
nids.param("filename", arg1)
nids.init()
nids.register_tcp(handleTcpStream)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def main():
args = sys.argv[1:]
print args
# Default to listening to all devices
nids.param("device", 'any')
nids.param("pcap_filter", ' '.join(args) + ' and tcp')
# disable portscan detection
nids.param("scan_num_hosts", 0)
# disable check-summing
nids.chksum_ctl([('0.0.0.0/0', False)])
nids.init()
(uid, gid) = pwd.getpwnam(NOTROOT)[2:4]
os.setgroups([gid, ])
os.setgid(gid)
os.setuid(uid)
if 0 in [os.getuid(), os.getgid()] + list(os.getgroups()):
print "error - drop root, please!"
sys.exit(1)
nids.register_tcp(handle_tcp)
while True:
try:
nids.next()
except nids.error, e:
print "nids/pcap error:", e
def run(self):
"""
:return:
"""
nids.init()
if self.is_handle_tcp:
nids.register_tcp(self.__handleTCPStream)
if self.is_handle_udp:
nids.register_udp(self.__handleUDPDatagram)
if self.is_handle_ip:
nids.register_ip(self.__handleIPPackets)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error as e:
logging.error("[NIDS_RUN_Error]: %r" % e)
except (KeyboardInterrupt, SystemExit) as e:
logging.error("[System_Exit]: %r" % e)
except Exception as e:
logging.error("[NIDS RUN Exception]: %r %s" %
(e, traceback.format_exc()))
def main(arg1):
global count
global responses
global responses_headers
global response
global response_header
#nids.param("pcap_filter", "tcp") # bpf restrict to TCP only, note
# libnids caution about fragments
nids.param("scan_num_hosts", 0) # disable portscan detection
#if len(sys.argv) == 2: # read a pcap file?
nids.param("filename", arg1)
nids.init()
nids.register_tcp(handleTcpStream)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def nids_init(self):
nids.param("device", self.interface)
nids.param("pcap_filter", "port 80")
nids.param("san_num_hosts", 0)
#nids.param("dev_addon", ?) #might need this for monitor mode
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.init()
nids.register_tcp(self.handle_tcp)
self.nids = nids
def main():
nids.param("pcap_filter", "vlan and port 25")
nids.param("scan_num_hosts", 0)
nids.chksum_ctl([('0.0.0.0/0', False)])
nids.param("filename", sys.argv[1])
nids.init()
nids.register_tcp(tcp_callback)
nids.run()
def main():
# parse args
argparser = argparse.ArgumentParser()
argparser.add_argument('PCAP', help='Path to the .pcap file to parse')
argparser.add_argument('-H',
metavar='HOST',
default='127.0.0.1',
help='Address to listen on (DEFAULT: 127.0.0.1)')
argparser.add_argument('-p',
metavar='PORT',
type=int,
default=3128,
help='Port to listen on (DEFAULT: 3128)')
argparser.add_argument('-v',
action='append_const',
const=1,
default=[],
help='Increase the verbosity level')
args = argparser.parse_args()
HOST, PORT = args.H, args.p
verbosity = len(args.v)
# setup logger
if verbosity == 0:
log_level = logging.ERROR
elif verbosity == 1:
log_level = logging.INFO
else:
log_level = logging.DEBUG
logging.basicConfig(format='%(levelname)s:%(message)s', level=log_level)
# setup the reassembler
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl(
[('0.0.0.0/0', False)]
) # disable checksum verification: jsunpack says it may cause missed traffic
nids.param("filename", args.PCAP)
nids.init()
nids.register_tcp(reassembleTcpStream)
logging.info("Processing TCP streams...")
nids.run()
# process the open streams, which are not processed by pynids
logging.info("Processing open streams...")
for c, stream in openstreams.items():
processTcpStream(stream)
# run proxy server
server = ProxyServer((HOST, PORT), ProxyRequestHandler)
server.allow_reuse_address = True
try:
logging.info("Proxy listening on %s:%d" % (HOST, PORT))
server.serve_forever()
except KeyboardInterrupt:
return 0
def __init__(self,fname=None,iface='all'):
threading.Thread.__init__(self)
nids.param("scan_num_hosts", 0)
nids.chksum_ctl([('0.0.0.0/0', False)])
if fname:
nids.param("filename", fname)
else:
nids.param("device", iface)
nids.init()
nids.register_tcp(Nids.handler)
def run(self):
nids.init()
nids.register_tcp(self.handle_tcp)
try:
nids.run()
print("DONE")
self.done = True
except nids.error, e:
print "[-] Error: %s" % (e)
def __init__(self, fname=None, iface='all'):
threading.Thread.__init__(self)
nids.param("scan_num_hosts", 0)
nids.chksum_ctl([('0.0.0.0/0', False)])
if fname:
nids.param("filename", fname)
else:
nids.param("device", iface)
nids.init()
nids.register_tcp(Nids.handler)
def main():
# Packet through Interface OR PCAP check.
if pcap_path is not '':
nids.param('filename', pcap_path)
else:
nids.param('device', interface)
nids.init()
nids.register_tcp(tcpcallback)
nids.run()
def main():
if len(sys.argv) == 2:
nids.param("filename", sys.argv[1])
nids.init()
nids.register_tcp(tcpcallback)
try:
nids.run()
except nids.error, e:
print "[-] Error: %s" % (e)
def main():
parser = argparse.ArgumentParser(description='minips.py - A minimal IPS', version='0.1',
epilog='EXAMPLE: %(prog)s -p test.pcap -r \'shellcode\' \n')
inputparser = parser.add_mutually_exclusive_group(required=True)
inputparser.add_argument('-d', '--device', action='store', dest='device',
help='network device to collect packets from')
inputparser.add_argument('-p', '--pcap', action='store', dest='pcap',
help='pcap file to read packets from')
parser.add_argument('-r', '--regex', action='store', dest='regex', required=True,
help='regex to match over network data')
parser.add_argument('-i', '--igncase', action='store_true', dest='igncase', default=False,
help='perform case insensitive regex match')
parser.add_argument('-m', '--multiline', action='store_true', dest='multiline', default=False,
help='perform multiline regex match')
parser.add_argument('-k', '--killtcp', action='store_true', dest='killtcp', default=False,
help='terminate matching tcp connections')
parser.add_argument('-b', '--dispbytes', action='store', dest='dispbytes', required=False,
help='max bytes to display')
args = parser.parse_args()
if args.device:
globs['device'] = args.device
nids.param('device', globs['device'])
if args.pcap:
globs['pcap'] = args.pcap
nids.param('filename', globs['pcap'])
if args.killtcp:
globs['killtcp'] = True
if args.igncase:
globs['regexflags'] |= re.IGNORECASE
if args.multiline:
globs['regexflags'] |= re.MULTILINE
globs['regexflags'] |= re.DOTALL
if args.regex:
globs['regexstr'] = args.regex
globs['regexobj'] = re.compile(globs['regexstr'], globs['regexflags'])
if args.dispbytes:
globs['dispbytes'] = int(args.dispbytes)
nids.init()
nids.register_tcp(tcpcallback)
nids.register_udp(udpcallback)
try:
nids.run()
except nids.error, e:
print "[-] Error: %s" % (e)
def main(self):
#nids.param("filename", "bittorrent.pcap")
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
# nids.register_udp()
nids.init()
nids.register_tcp(self.handleTcpStream)
#nids.register_udp(self.handleUtp)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
nids.run()
def run(self):
files_dir = os.path.join(self.output_dir, "files")
if not os.path.exists(files_dir):
os.mkdir(files_dir)
nids.init()
nids.register_tcp(self.handle_tcp_stream_wrapper)
try:
nids.run()
self.finish()
self.save_stats()
except nids.error, e:
print >> sys.stderr, "nids/pcap error:", e
def run_parser(self, out_queue):
try:
nids.param("filename", self.pcap_path)
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.init()
nids.chksum_ctl([('0.0.0.0/0', False), ])
nids.register_tcp(self._handleTcpStream)
nids.run()
except Exception:
self.messages = []
out_queue.put(self.messages)
def main(self):
#nids.param("scan_num_hosts", 0)
nids.param("filename", "test1.pcap")
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
#nids.register_udp()
nids.init()
nids.register_tcp(self.handleTcpStream)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def start(self):
if self._filter:
nids.param("pcap_filter", self._filter)
if self._pcapfile:
nids.param("filename", self._pcapfile)
elif self._device:
nids.param("device", self._device)
# Initializing libnids
nids.init()
# Registering the handler
nids.register_tcp(lambda tcp: self._handle_tcp_stream(tcp))
# Running nids
nids.run()
def run(self, conf):
self.conf = conf
self.output = open(conf.output_file, 'a')
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param('scan_num_hosts', 0) # disable portscan detection
nids.param('filename', conf.filename)
nids.init()
nids.register_udp(self.udp_handler)
try:
nids.run()
except nids.error, e:
print >> sys.stderr, 'nids/pcap error:', e
sys.exit(1)
def run_parser(self, out_queue):
try:
nids.param("filename", self.pcap_path)
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.init()
nids.chksum_ctl([
('0.0.0.0/0', False),
])
nids.register_tcp(self._handleTcpStream)
nids.run()
except Exception:
self.messages = []
out_queue.put(self.messages)
def main():
if len(sys.argv) == 2:
nids.param("filename", sys.argv[1])
nids.param("device", "all")
nids.param("tcp_workarounds", True)
nids.param("pcap_timeout", 128)
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.init()
tcpCapturer = TCPPacketCapturer()
try:
nids.run()
except nids.error, e:
print "[-] Error: %s" % (e)
def main():
if len(sys.argv) == 2:
nids.param("filename", sys.argv[1])
nids.param("device", "all")
nids.param("tcp_workarounds", True)
nids.param("pcap_timeout", 128)
nids.param("scan_num_hosts",0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.init()
tcpCapturer = TCPPacketCapturer()
try:
nids.run()
except nids.error, e:
print "[-] Error: %s" % (e)
def main():
# parse args
argparser = argparse.ArgumentParser()
argparser.add_argument('PCAP', help='Path to the .pcap file to parse')
argparser.add_argument('-H', metavar='HOST', default='127.0.0.1', help='Address to listen on (DEFAULT: 127.0.0.1)')
argparser.add_argument('-p', metavar='PORT', type=int, default=3128, help='Port to listen on (DEFAULT: 3128)')
argparser.add_argument('-v', action='append_const', const=1, default=[], help='Increase the verbosity level')
args = argparser.parse_args()
HOST, PORT = args.H, args.p
verbosity = len(args.v)
# setup logger
if verbosity == 0:
log_level = logging.ERROR
elif verbosity == 1:
log_level = logging.INFO
else:
log_level = logging.DEBUG
logging.basicConfig(format='%(levelname)s:%(message)s', level=log_level)
# setup the reassembler
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksum verification: jsunpack says it may cause missed traffic
nids.param("filename", args.PCAP)
nids.init()
nids.register_tcp(reassembleTcpStream)
logging.info("Processing TCP streams...")
nids.run()
# process the open streams, which are not processed by pynids
logging.info("Processing open streams...")
for c, stream in openstreams.items():
processTcpStream(stream)
# run proxy server
server = ProxyServer( (HOST,PORT), ProxyRequestHandler)
server.allow_reuse_address = True
try:
logging.info("Proxy listening on %s:%d" % (HOST,PORT))
server.serve_forever()
except KeyboardInterrupt:
return 0
def process_pcap(filename, protocols=[], dports=[]):
global streams_, dports_
streams_ = []
dports_ = dports
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param("filename", filename) # specify pcap file to parse
nids.init()
if not protocols or TCP in protocols:
nids.register_tcp(handleTcpStream)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def run(self, config):
self.config = config
self.config.output = open(self.config.output_file, 'a')
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param('scan_num_hosts', 0) # disable portscan detection
if self.config.filename:
nids.param('filename', self.config.filename)
else:
nids.param('filename', '-')
nids.init()
self.stream_handler = StreamHandler(self.config)
nids.register_tcp(self.stream_handler.handle)
try:
nids.run()
except nids.error, e:
print >> sys.stderr, 'nids/pcap error:', e
sys.exit(-1)
def main():
global extract
extract = False
pcap = False
if "-e" in sys.argv:
extract = True
nids.param("scan_num_hosts", 0)
for arg in sys.argv[1:]:
if arg.endswith('.pcap'):
pcap = True
nids.param("filename", arg)
if not pcap:
nids.param("device", "eth0")
nids.init()
nids.register_tcp(handleTcpStream)
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def extract(pcap_file):
global ip_to_domain
global ips
ips = {}
ip_to_domain = {}
nids.param("tcp_workarounds", 1)
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param("filename", pcap_file)
nids.init()
nids.register_tcp(handle_tcp_stream)
nids.register_udp(udp_callback)
try:
nids.run()
except Exception, e:
print "Exception ", pcap_file + " ", e
return
def extract(pcap_file):
global ip_to_domain
global ips
ips = {}
ip_to_domain = {}
nids.param("tcp_workarounds", 1)
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param("filename", pcap_file)
nids.init()
nids.register_tcp(handle_tcp_stream)
nids.register_udp(udp_callback)
try:
nids.run()
except Exception, e:
print "Exception ", pcap_file + " ", e
return
def extract_flows(pcap_file):
global ts, requestdata, responsedata, requestcounter, http_req
ts, requestdata, responsedata, requestcounter, http_req = \
dict([]), dict([]), dict([]), dict([]), dict([])
nids.param("tcp_workarounds", 1)
nids.param("pcap_filter", "tcp") # bpf restrict to TCP only, note
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param("filename", pcap_file)
nids.init()
nids.register_tcp(handle_tcp_stream)
# print "pid", os.getpid()
if DEBUG: print "Reading from pcap file:", pcap_file
try:
nids.run()
except nids.error, e:
print "nids/pcap error: ", pcap_file + " ", e
def main():
global count
global responses
#nids.param("pcap_filter", "tcp") # bpf restrict to TCP only, note
# libnids caution about fragments
nids.param("scan_num_hosts", 0) # disable portscan detection
#if len(sys.argv) == 2: # read a pcap file?
nids.param("filename", sys.argv[1])
nids.init()
nids.register_tcp(handleTcpStream)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error, e:
print "nids/pcap error:", e
def run(self, config):
self.config = config
self.stream_handler = StreamHandler(self.config)
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param('scan_num_hosts', 0) # disable portscan detection
if self.config.filename:
nids.param('filename', self.config.filename)
else:
nids.param('device', self.config.interface)
nids.init()
nids.register_tcp(self.stream_handler.tcp_callback)
#nids.register_udp(self.stream_handler.udp_callback)
try:
nids.run()
except nids.error, e:
print >> sys.stderr, 'nids/pcap error:', e
print >> sys.stderr, 'Error in %s' % self.filename
traceback.print_exc(file=sys.stderr)
def main():
logging.basicConfig(filename="mspCapturer.log",level=logging.DEBUG)
if (len(sys.argv) != 2):
logging.error( 'Invalid arguments. Usage: main.py <monitor port(s)>\n monitor ports should be specified in a comma seperated list ')
sys.exit(1)
logging.info( 'Set up Reassembler')
nids.param("scan_num_hosts",0) # disable portscan detection
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param("pcap_timeout", 128)
nids.param("tcp_workarounds", True)
nids.param("sk_buff_size", 256) #default 168
nids.param("n_tcp_streams", 2048) #default 1024
nids.param("device", "all")
nids.init()
assm = Reassembler(ports=sys.argv[1])
try:
nids.run()
except KeyboardInterrupt:
logging.error( "Reassembler Terminated: Quitting")
sys.exit(2)
def run(self, config):
self.config = config
self.stream_handler = StreamHandler(self.config)
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
nids.param('scan_num_hosts', 0) # disable portscan detection
if self.config.filename:
nids.param('filename', self.config.filename)
else:
nids.param('device', self.config.interface)
nids.init()
nids.register_tcp(self.stream_handler.tcp_callback)
#nids.register_udp(self.stream_handler.udp_callback)
try:
nids.run()
except nids.error, e:
print >> sys.stderr, 'nids/pcap error:', e
print >> sys.stderr, 'Error in %s' % self.filename
traceback.print_exc(file=sys.stderr)
def run(self):
"""
:return:
"""
nids.init()
nids.register_tcp(self.__handleTCPStream)
# Loop forever (network device), or until EOF (pcap file)
# Note that an exception in the callback will break the loop!
try:
nids.run()
except nids.error as e:
logging.error("[NIDS_RUN_Error]: %r" % e)
except (KeyboardInterrupt, SystemExit) as e:
logging.error("[System_Exit]: %r" % e)
except Exception as e:
logging.error("[NIDS RUN Exception]: %r" % e)
def parse_pcap(self,options,file):
try:
import nids
except:
options.log.error("failed to import LibNIDS are you sure it's installed")
sys.exit(-1)
self.http_stream_list = []
self.stream_hash = {}
self.stream_count = 0
self.filename = os.path.basename(file)
self.log = options.log
if options.pcap_bpf != None:
nids.param("pcap_filter", options.pcap_bpf)
nids.param("scan_num_hosts", 0)
nids.param("filename", file)
nids.init()
nids.register_tcp(self.handleTcpStream)
try:
nids.run()
except nids.error, e:
options.log.error("nids/pcap error:" % (e))
def sniff():
if not _initialized:
raise NameError('Module vars were not initialized.')
nids.param('device', _device)
nids.param('multiproc', 1)
nids.param('scan_num_hosts', 0)
nids.chksum_ctl([('0.0.0.0/0', False)])
nids.init()
nids.register_tcp(_handle_tcp_stream)
nids.register_udp(_handle_udp_stream)
nids.register_ip(_handle_ip_packets)
arp_sniff = Process(target=scapy_sniff, kwargs=dict(store=0,
iface=_device, prn=_parse_arp))
dns_lookups = Process(target=_handle_dns_lookup)
traf_dict = Process(target=_handle_new_traf)
arp_sniff.start()
dns_lookups.start()
traf_dict.start()
nids.run()
def parse_pcap(self, options, file):
try:
import nids
except:
options.log.error(
"failed to import LibNIDS are you sure it's installed")
sys.exit(-1)
self.http_stream_list = []
self.stream_hash = {}
self.stream_count = 0
self.filename = os.path.basename(file)
self.log = options.log
if options.pcap_bpf != None:
nids.param("pcap_filter", options.pcap_bpf)
nids.param("scan_num_hosts", 0)
nids.param("filename", file)
nids.init()
nids.register_tcp(self.handleTcpStream)
try:
nids.run()
except nids.error, e:
options.log.error("nids/pcap error:" % (e))
def main():
try:
ifile=""
global dev
global filter
global debug
global response_dict
global interactive
global filter_by
global cant_bytes_min
global ssh_user_string
(uid, gid) = pwd.getpwnam(NOTROOT)[2:4]
os.setgroups([gid,])
os.setgid(gid)
os.setuid(uid)
if 0 in [os.getuid(), os.getgid()] + list(os.getgroups()):
print "error - drop root, please!"
sys.exit(1)
opts, args = getopt.getopt(sys.argv[1:], "d:hVi:qf:Dt:b:s:", ["device=","help","version","input-file=","filter=","--debug","session-type=","min-bytes=","ssh-string="])
except getopt.GetoptError: usage()
for opt, arg in opts:
if opt in ("-h", "--help"): usage()
if opt in ("-V", "--version"): version()
if opt in ("-i", "--input-file"): ifile = arg
if opt in ("-d", "--capture-device"): dev = arg
if opt in ("-f", "--filter"): filter = arg
if opt in ("-D", "--debug"): debug=1
#if opt in ("-I", "--interactive"): interactive=True
if opt in ("-t", "--session-type"): filter_by = arg
if opt in ("-b", "--min-bytes"): cant_bytes_min = arg
if opt in ("-s", "--ssh-string"): ssh_user_string = arg
try:
if filter_by != "":
interactive = True
if ifile!="" and dev=="":
if debug:
print 'Input File : %s' % (ifile)
nids.param("filename", ifile)
elif ifile=="" and dev!="":
if debug:
print 'Capturing from device : %s' % (dev)
elif ifile=="" and dev=="":
usage()
sys.exit(1)
if filter:
if debug:
print 'Filter: %s' % (filter)
nids.param("pcap_filter",filter)
nids.param("scan_num_hosts", 0) # disable portscan detection
nids.init()
nids.register_tcp(handleTcpStream)
try:
if debug:
print ' -- Start processing'
nids.run()
output()
except nids.error, e:
print "nids/pcap error:", e
output()
except Exception, e:
print "misc. exception (runtime error from user callback?):", e
output()
def main():
parser = argparse.ArgumentParser(
description='minips.py - A minimal IPS',
version='0.1',
epilog='EXAMPLE: %(prog)s -p test.pcap -r \'shellcode\' \n')
inputparser = parser.add_mutually_exclusive_group(required=True)
inputparser.add_argument('-d',
'--device',
action='store',
dest='device',
help='network device to collect packets from')
inputparser.add_argument('-p',
'--pcap',
action='store',
dest='pcap',
help='pcap file to read packets from')
parser.add_argument('-r',
'--regex',
action='store',
dest='regex',
required=True,
help='regex to match over network data')
parser.add_argument('-i',
'--igncase',
action='store_true',
dest='igncase',
default=False,
help='perform case insensitive regex match')
parser.add_argument('-m',
'--multiline',
action='store_true',
dest='multiline',
default=False,
help='perform multiline regex match')
parser.add_argument('-k',
'--killtcp',
action='store_true',
dest='killtcp',
default=False,
help='terminate matching tcp connections')
parser.add_argument('-b',
'--dispbytes',
action='store',
dest='dispbytes',
required=False,
help='max bytes to display')
args = parser.parse_args()
if args.device:
globs['device'] = args.device
nids.param('device', globs['device'])
if args.pcap:
globs['pcap'] = args.pcap
nids.param('filename', globs['pcap'])
if args.killtcp:
globs['killtcp'] = True
if args.igncase:
globs['regexflags'] |= re.IGNORECASE
if args.multiline:
globs['regexflags'] |= re.MULTILINE
globs['regexflags'] |= re.DOTALL
if args.regex:
globs['regexstr'] = args.regex
globs['regexobj'] = re.compile(globs['regexstr'], globs['regexflags'])
if args.dispbytes:
globs['dispbytes'] = int(args.dispbytes)
nids.init()
nids.register_tcp(tcpcallback)
nids.register_udp(udpcallback)
try:
nids.run()
except nids.error, e:
print "[-] Error: %s" % (e)
nids.next()
time.sleep(.001) #XXX is this enough or too much?
except Exception, e:
chop.prnt("Error processing packets", e)
#no need to exit
else:
if options.filename is "":
chop.prnt("Empty Filename")
self.complete = True
return
nids.param("scan_num_hosts",0)
nids.param("filename",options.filename)
try:
nids.init()
except Exception, e:
self.complete = True
chop.prnt("Error initting: ", e)
return
nids.chksum_ctl([('0.0.0.0/0',False),])
nids.register_tcp(handleTcpStreams)
nids.register_udp(handleUdpDatagrams)
while(True): #This overall while prevents exceptions from halting the long running reading
if self.stopped:
break
try:
if options.longrun: #long running don't stop until the proces is killed externally
while not self.stopped:
"duration": (ts - start_time[tcp.addr]),
"contains_flag": contains_flag[tcp.addr],
"starred": 0,
"flow": current_data
}
flows_to_import.append(flow)
del data_flow[tcp.addr]
nids.param("pcap_filter", "tcp") # restrict to TCP only
nids.chksum_ctl([('0.0.0.0/0', False)]) # disable checksumming
if len(sys.argv) == 2:
filename = sys.argv[1]
if "./" in filename:
filename = filename[2:]
print("importing pcaps from " + filename)
nids.param("filename", filename)
else:
print("pcap file required")
exit()
nids.init()
nids.register_tcp(handleTcpStream)
nids.run()
print("importing " + str(len(flows_to_import)) + " flows into mongodb!")
db.insertFlows(filename, flows_to_import)
db.setFileImported(filename)
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-d",
"--device",
dest="device",
help="sniff on network device DEVICE",
metavar="DEVICE")
parser.add_option("-f",
"--file",
dest="file",
help="use pcap logfile FILE",
metavar="FILE")
parser.add_option("-l",
"--log",
dest="log",
action="store_true",
default=False,
help="create logs")
parser.add_option("-p",
"--pid",
dest="pid",
help="attach to process PID",
metavar="PID")
(options, args) = parser.parse_args()
nids.param("scan_num_hosts", 0) # Disable portscan detection
logfiles = {}
sniff = Sniffer()
sniff.starttime = datetime.now()
def timestring():
td = datetime.now() - sniff.starttime
return "[% 8.3f]" % (td.seconds + td.microseconds / 1000000.0)
def message_output_handler(message):
if options.log:
connection = message.source.connection
if connection.session:
if connection in logfiles:
logfile = logfiles[connection]
else:
logname = "%s_%s.wlog" % (
connection.session.account,
datetime.now().strftime("%Y-%m-%d_%H-%M-%S"))
print timestring(), 'Creating log file "%s"' % logname
logfile = log.Log(open(logname, "wb"))
logfile.write_header()
session = connection.session
sinfo = log.SessionInfo(session.game, session.version,
session.locale,
connection.client.address,
connection.server.address,
session.account)
logfile.write(sinfo)
logfiles[connection] = logfile
if message.source is connection.client:
cls = messages.ClientMessage
elif message.source is connection.server:
cls = messages.ServerMessage
else:
cls = None
if cls:
logfile.write(
cls(message.opcode, connection.client.address,
connection.server.address, message.data))
else:
# FIXME: This always discards the first message (SMSG_AUTH_CHALLENGE) because at that point,
# the session is not yet known. We should cache this message and output it too.
pass
print timestring(), opcodes.names[message.opcode].ljust(55),
if len(message.data) > 0:
print "% 6d bytes" % len(message.data)
else:
print
def session_output_handler(session):
print timestring(), "New Session:", session
sniff.message_handler = message_output_handler
sniff.session_handler = session_output_handler
if options.device:
nids.param("device", options.device)
if options.file:
nids.param("filename", options.file)
pid = None
if options.pid is not None and options.pid.isdigit():
pid = int(options.pid)
elif options.pid == "auto":
pid = findWowProcess()
if pid:
print timestring(), "Attaching to process", pid
sniff.addProcess(pid)
elif not options.file:
print timestring(), "Warning: Not attaching to any process"
nids.init()
nids.register_tcp(sniff.tcp_handler)
nids.run()
def main():
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-d", "--device", dest="device", help="sniff on network device DEVICE", metavar="DEVICE")
parser.add_option("-f", "--file", dest="file", help="use pcap logfile FILE", metavar="FILE")
parser.add_option("-l", "--log", dest="log", action="store_true", default=False, help="create logs")
parser.add_option("-p", "--pid", dest="pid", help="attach to process PID", metavar="PID")
(options, args) = parser.parse_args()
nids.param("scan_num_hosts", 0) # Disable portscan detection
logfiles = {}
sniff = Sniffer()
sniff.starttime = datetime.now()
def timestring():
td = datetime.now() - sniff.starttime
return "[% 8.3f]" % (td.seconds + td.microseconds/1000000.0)
def message_output_handler(message):
if options.log:
connection = message.source.connection
if connection.session:
if connection in logfiles:
logfile = logfiles[connection]
else:
logname = "%s_%s.wlog" % (connection.session.account, datetime.now().strftime("%Y-%m-%d_%H-%M-%S"))
print timestring(), 'Creating log file "%s"' % logname
logfile = log.Log(open(logname, "wb"))
logfile.write_header()
session = connection.session
sinfo = log.SessionInfo(session.game, session.version, session.locale, connection.client.address, connection.server.address, session.account)
logfile.write(sinfo)
logfiles[connection] = logfile
if message.source is connection.client:
cls = messages.ClientMessage
elif message.source is connection.server:
cls = messages.ServerMessage
else:
cls = None
if cls:
logfile.write(cls(message.opcode, connection.client.address, connection.server.address, message.data))
else:
# FIXME: This always discards the first message (SMSG_AUTH_CHALLENGE) because at that point,
# the session is not yet known. We should cache this message and output it too.
pass
print timestring(), opcodes.names[message.opcode].ljust(55),
if len(message.data) > 0:
print "% 6d bytes" % len(message.data)
else:
print
def session_output_handler(session):
print timestring(), "New Session:", session
sniff.message_handler = message_output_handler
sniff.session_handler = session_output_handler
if options.device:
nids.param("device", options.device)
if options.file:
nids.param("filename", options.file)
pid = None
if options.pid is not None and options.pid.isdigit():
pid = int(options.pid)
elif options.pid == "auto":
pid = findWowProcess()
if pid:
print timestring(), "Attaching to process", pid
sniff.addProcess(pid)
elif not options.file:
print timestring(), "Warning: Not attaching to any process"
nids.init()
nids.register_tcp(sniff.tcp_handler)
nids.run()
class ChopCore(Thread):
def __init__(self, options, module_list, chp, chophelper):
Thread.__init__(self)
self.options = options
self.module_list = module_list
self.chophelper = chophelper
self.stopped = False
self.complete = False
self.abort = False
global chop
chop = chp
def stop(self):
self.complete = True
self.stopped = True
def iscomplete(self):
return self.complete
def getptime(self):
global ptimestamp
return ptimestamp
def getmeta(self):
global metadata
return metadata
def prep_modules(self):
self.chophelper.set_core(self)
modules = self.module_list
for module in modules:
code = module.code
code.chop = self.chophelper.setup_module(code.moduleName)
def run(self):
global chop
#Initialize modules to be run
options = self.options
modules = self.module_list #module_list
module_options = {}
chop.prettyprnt("RED", "Initializing Modules ...")
for module in modules:
name = module.name
arguments = module.arguments #shlex.split(module[1])
code = module.code #module[0]
#Create module_data for all modules
module.module_data = {'args': arguments}
module.streaminfo = {}
chop.prettyprnt("CYAN", "\tInitializing module '" + name + "'")
try:
module_options = code.init(module.module_data)
except Exception, e:
chop.prnt("Error Initializing Module", code.moduleName + ":",
e)
self.complete = True
return
if 'error' in module_options:
chop.prettyprnt(
"GREEN", "\t\t%s init failure: %s" %
(code.moduleName, module_options['error']))
continue
if module.legacy:
if module_options['proto'] == 'tcp':
tcp_modules.append(module)
all_modules.append(module)
module.streaminfo['tcp'] = {}
elif module_options['proto'] == 'ip':
ip_modules.append(module)
all_modules.append(module)
module.streaminfo['ip'] = {}
elif module_options['proto'] == 'udp':
udp_modules.append(module)
all_modules.append(module)
module.streaminfo['udp'] = {}
else:
chop.prnt("Undefined Module Type\n")
self.complete = True
return
else:
all_modules.append(module)
#Proto is an array of dictionaries
if not isinstance(module_options['proto'], list): #Malformed
chop.prnt("%s has malformed proto list" %
module.code.moduleName)
self.complete = True
return
for proto in module_options['proto']:
#Right now (4.0) each dictionary only has one key
#This might change in the future but should be easy
#since it's already a separate dictionary
if type(proto) is not dict:
chop.prnt("%s has malformed proto list" %
module.code.moduleName)
self.complete = True
return
for input in proto.keys():
if input not in module.inputs:
module.inputs[input] = []
if proto[input] != '':
module.inputs[input].append(proto[input])
module.outputs.append(proto[input])
#Initialize the streaminfo array by type
if input != 'any' and input != 'ip':
module.streaminfo[input] = {}
if input == 'tcp':
tcp_modules.append(module)
elif input == 'udp':
udp_modules.append(module)
elif input == 'ip':
ip_modules.append(module)
elif input == 'any': #Special input that catches all non-core types
#Initialize the streaminfo for all parents of the 'any' module
if not len(module.parents):
chop.prettyprnt(
"GREEN",
"WARNING: No Parent for %s to provide data"
% (module.code.moduleName))
else:
for parent in module.parents:
for output in parent.outputs:
module.streaminfo[output] = {}
else: # non-core types, e.g., 'http' or 'dns'
if len(module.parents
): #Make sure parents give it what it wants
for parent in module.parents:
if input not in parent.outputs:
chop.prettyprnt(
"GREEN",
"WARNING: Parent to %s not providing %s data"
% (module.code.moduleName, input))
else:
chop.prettyprnt(
"GREEN",
"WARNING: No Parent for %s providing %s data"
% (module.code.moduleName, input))
if not all_modules:
chop.prnt("No modules")
self.complete = True
return
chop.prettyprnt("RED", "Running Modules ...")
#Actually run the modules
if options['interface']:
nids.param("scan_num_hosts", 0)
nids.param("device", options['interface'])
if options['bpf'] is not None:
nids.param("pcap_filter", options['bpf'])
try:
nids.init()
except Exception, e:
chop.prnt("Error initting on interface: ", e)
self.complete = True
return
nids.chksum_ctl([
('0.0.0.0/0', False),
])
nids.register_tcp(handleTcpStreams)
nids.register_udp(handleUdpDatagrams)
nids.register_ip(handleIpPackets)
while (
True
): #This overall while prevents exceptions from halting the processing of packets
if self.stopped:
break
try:
while not self.stopped:
nids.next()
time.sleep(.001) #XXX is this enough or too much?
except Exception, e:
chop.prnt("Error processing packets", e)
class ChopCore(Thread):
def __init__(self,options, module_list, chp, chophelper):
Thread.__init__(self)
self.options = options
self.module_list = module_list
self.chophelper = chophelper
self.stopped = False
self.complete = False
global chop
chop = chp
def stop(self):
self.complete = True
self.stopped = True
def iscomplete(self):
return self.complete
def getptime(self):
global ptimestamp
return ptimestamp
def getmeta(self):
global metadata
return metadata
def prep_modules(self):
self.chophelper.set_core(self)
modules = self.module_list
for module in modules:
module = module[0]
module.chop = self.chophelper.setup_module(module.moduleName)
def run(self):
global chop
#Initialize modules to be run
options = self.options
modules = self.module_list#module_list
module_options = {}
chop.prettyprnt("RED", "Initializing Modules ...")
for module in modules:
name = module[2]
arguments = shlex.split(module[1])
module = module[0]
#Create module_data for all modules
module.module_data = {'args':arguments}
module.streaminfo = {}
chop.prettyprnt("CYAN", "\tInitializing module '" + name + "'")
try:
module_options = module.init(module.module_data)
except Exception, e:
chop.prnt("Error Initializing Module", module.moduleName + ":", e)
self.complete = True
return
if 'error' in module_options:
chop.prettyprnt("GREEN", "\t\t%s init failure: %s" % (module.moduleName, module_options['error']))
continue
if module_options['proto'] == 'tcp' :
tcp_modules.append(module)
all_modules.append(module)
elif module_options['proto'] == 'ip' :
ip_modules.append(module)
all_modules.append(module)
elif module_options['proto'] == 'udp' :
udp_modules.append(module)
all_modules.append(module)
else:
chop.prnt("Undefined Module Type\n")
self.complete = True
return
if not all_modules:
chop.prnt("No modules")
self.complete = True
return
chop.prettyprnt("RED", "Running Modules ...")
#Actually run the modules
if options['interface']:
nids.param("scan_num_hosts",0)
nids.param("device",options['interface'])
if options['bpf'] is not None:
nids.param("pcap_filter", options['bpf'])
try:
nids.init()
except Exception, e:
chop.prnt("Error initting: ", e)
self.complete = True
return
nids.chksum_ctl([('0.0.0.0/0',False),])
nids.register_tcp(handleTcpStreams)
nids.register_udp(handleUdpDatagrams)
while(True): #This overall while prevents exceptions from halting the processing of packets
if self.stopped:
break
try:
while not self.stopped:
nids.next()
time.sleep(.001) #XXX is this enough or too much?
except Exception, e:
chop.prnt("Error processing packets", e)