diff --git a/tools/RunFinger.py b/tools/RunFinger.py
new file mode 100755
index 0000000..39ce0ea
--- /dev/null
+++ b/tools/RunFinger.py
@@ -0,0 +1,282 @@
+#!/usr/bin/env python
+# This file is part of Responder, a network take-over set of tools 
+# created and maintained by Laurent Gaffie.
+# email: laurent.gaffie@gmail.com
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import re,sys,socket,struct
+import multiprocessing
+from socket import *
+from odict import OrderedDict
+import optparse
+
+__version__ = "0.5"
+
+parser = optparse.OptionParser(usage='python %prog -i 10.10.10.224\nor:\npython %prog -i 10.10.10.0/24', version=__version__, prog=sys.argv[0])
+
+parser.add_option('-i','--ip', action="store", help="Target IP address or class C", dest="TARGET", metavar="10.10.10.224", default=None)
+parser.add_option('-g','--grep', action="store_true", dest="Grep", default=False, help="Output it in grepable format")
+options, args = parser.parse_args()
+
+Timeout = 2
+Host = options.TARGET
+Grep = options.Grep
+
+class Packet():
+    fields = OrderedDict([
+    ])
+    def __init__(self, **kw):
+        self.fields = OrderedDict(self.__class__.fields)
+        for k,v in kw.items():
+            if callable(v):
+                self.fields[k] = v(self.fields[k])
+            else:
+                self.fields[k] = v
+    def __str__(self):
+        return "".join(map(str, self.fields.values()))
+
+def longueur(payload):
+    length = struct.pack(">i", len(''.join(payload)))
+    return length
+
+class SMBHeader(Packet):
+    fields = OrderedDict([
+        ("proto",      "\xff\x53\x4d\x42"),
+        ("cmd",        "\x72"),
+        ("error-code", "\x00\x00\x00\x00" ),
+        ("flag1",      "\x00"),
+        ("flag2",      "\x00\x00"),
+        ("pidhigh",    "\x00\x00"),
+        ("signature",  "\x00\x00\x00\x00\x00\x00\x00\x00"),
+        ("reserved",   "\x00\x00"),
+        ("tid",        "\x00\x00"),
+        ("pid",        "\x00\x00"),
+        ("uid",        "\x00\x00"),
+        ("mid",        "\x00\x00"),
+    ])
+
+class SMBNego(Packet):
+    fields = OrderedDict([
+        ("Wordcount", "\x00"),
+        ("Bcc", "\x62\x00"),
+        ("Data", "")
+    ])
+    
+    def calculate(self):
+        self.fields["Bcc"] = struct.pack("<h",len(str(self.fields["Data"])))
+
+class SMBNegoData(Packet):
+    fields = OrderedDict([
+        ("BuffType","\x02"),
+        ("Dialect", "NT LM 0.12\x00"),
+    ])
+
+
+class SMBSessionFingerData(Packet):
+    fields = OrderedDict([
+        ("wordcount", "\x0c"),
+        ("AndXCommand", "\xff"),
+        ("reserved","\x00" ),
+        ("andxoffset", "\x00\x00"),
+        ("maxbuff","\x04\x11"),
+        ("maxmpx", "\x32\x00"),
+        ("vcnum","\x00\x00"),
+        ("sessionkey", "\x00\x00\x00\x00"),
+        ("securitybloblength","\x4a\x00"),
+        ("reserved2","\x00\x00\x00\x00"),
+        ("capabilities", "\xd4\x00\x00\xa0"),
+        ("bcc1",""),
+        ("Data","\x60\x48\x06\x06\x2b\x06\x01\x05\x05\x02\xa0\x3e\x30\x3c\xa0\x0e\x30\x0c\x06\x0a\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x0a\xa2\x2a\x04\x28\x4e\x54\x4c\x4d\x53\x53\x50\x00\x01\x00\x00\x00\x07\x82\x08\xa2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x01\x28\x0a\x00\x00\x00\x0f\x00\x57\x00\x69\x00\x6e\x00\x64\x00\x6f\x00\x77\x00\x73\x00\x20\x00\x32\x00\x30\x00\x30\x00\x32\x00\x20\x00\x53\x00\x65\x00\x72\x00\x76\x00\x69\x00\x63\x00\x65\x00\x20\x00\x50\x00\x61\x00\x63\x00\x6b\x00\x20\x00\x33\x00\x20\x00\x32\x00\x36\x00\x30\x00\x30\x00\x00\x00\x57\x00\x69\x00\x6e\x00\x64\x00\x6f\x00\x77\x00\x73\x00\x20\x00\x32\x00\x30\x00\x30\x00\x32\x00\x20\x00\x35\x00\x2e\x00\x31\x00\x00\x00\x00\x00"),
+
+    ])
+    def calculate(self):
+        self.fields["bcc1"] = struct.pack("<i", len(str(self.fields["Data"])))[:2]
+
+##Now Lanman
+class SMBHeaderLanMan(Packet):
+    fields = OrderedDict([
+        ("proto", "\xff\x53\x4d\x42"),
+        ("cmd", "\x72"),
+        ("error-code", "\x00\x00\x00\x00" ),
+        ("flag1", "\x08"),
+        ("flag2", "\x01\xc8"),
+        ("pidhigh", "\x00\x00"),
+        ("signature", "\x00\x00\x00\x00\x00\x00\x00\x00"),
+        ("reserved", "\x00\x00"),
+        ("tid", "\x00\x00"),
+        ("pid", "\x3c\x1b"),
+        ("uid", "\x00\x00"),
+        ("mid", "\x00\x00"),
+    ])
+
+class SMBNegoDataLanMan(Packet):
+    fields = OrderedDict([
+        ("Wordcount", "\x00"),
+        ("Bcc", "\x54\x00"),
+        ("BuffType","\x02"),
+        ("Dialect", "NT LM 0.12\x00"),
+
+    ])
+    def calculate(self):
+        CalculateBCC = str(self.fields["BuffType"])+str(self.fields["Dialect"])
+        self.fields["Bcc"] = struct.pack("<h",len(CalculateBCC))
+
+#####################
+
+def IsSigningEnabled(data): 
+    if data[39] == "\x0f":
+        return True
+    else:
+        return False
+
+def atod(a): 
+    return struct.unpack("!L",inet_aton(a))[0]
+
+def dtoa(d): 
+    return inet_ntoa(struct.pack("!L", d))
+
+def OsNameClientVersion(data):
+	try:
+		length = struct.unpack('<H',data[43:45])[0]
+		OsVersion, ClientVersion = tuple([e.replace('\x00','') for e in data[47+length:].split('\x00\x00\x00')[:2]])
+		return OsVersion, ClientVersion
+
+	except:
+	 	return "Could not fingerprint Os version.", "Could not fingerprint LanManager Client version"
+
+def GetHostnameAndDomainName(data):
+	try:
+		DomainJoined, Hostname = tuple([e.replace('\x00','') for e in data[81:].split('\x00\x00\x00')[:2]])
+		return Hostname, DomainJoined
+	except:
+	 	return "Could not get Hostname.", "Could not get Domain joined"
+
+def DomainGrab(Host):
+    s = socket(AF_INET, SOCK_STREAM)
+    try:
+       s.settimeout(Timeout)
+       s.connect(Host)
+    except:
+       print "Host down or port close, skipping"
+       pass
+    try:
+       h = SMBHeaderLanMan(cmd="\x72",mid="\x01\x00",flag1="\x00", flag2="\x00\x00")
+       n = SMBNegoDataLanMan()
+       n.calculate()
+       packet0 = str(h)+str(n)
+       buffer0 = longueur(packet0)+packet0
+       s.send(buffer0)
+       data = s.recv(2048)
+       s.close()
+       if data[8:10] == "\x72\x00":
+          return GetHostnameAndDomainName(data)
+    except:
+       pass 
+
+def SmbFinger(Host):
+    s = socket(AF_INET, SOCK_STREAM)
+    try:
+       s.settimeout(Timeout)
+       s.connect(Host)
+    except:
+       print "Host down or port close, skipping"
+       pass
+    try:     
+       h = SMBHeader(cmd="\x72",flag1="\x18",flag2="\x53\xc8")
+       n = SMBNego(Data = SMBNegoData())
+       n.calculate()
+       packet0 = str(h)+str(n)
+       buffer0 = longueur(packet0)+packet0
+       s.send(buffer0)
+       data = s.recv(2048)
+       signing = IsSigningEnabled(data)
+       if data[8:10] == "\x72\x00":
+          head = SMBHeader(cmd="\x73",flag1="\x18",flag2="\x17\xc8",uid="\x00\x00")
+          t = SMBSessionFingerData()
+          t.calculate() 
+          packet0 = str(head)+str(t)
+          buffer1 = longueur(packet0)+packet0  
+          s.send(buffer1) 
+          data = s.recv(2048)
+          s.close()
+       if data[8:10] == "\x73\x16":
+          OsVersion, ClientVersion = OsNameClientVersion(data)
+          return signing, OsVersion, ClientVersion
+    except:
+       pass
+##################
+#run it
+def ShowResults(Host):
+    s = socket(AF_INET, SOCK_STREAM)
+    try:
+       s.settimeout(Timeout)
+       s.connect(Host)
+    except:
+       return False
+
+    try:
+       print "Retrieving information for %s..."%Host[0]
+       Hostname, DomainJoined = DomainGrab(Host)
+       Signing, OsVer, LanManClient = SmbFinger(Host)
+       print "SMB signing:", Signing 
+       print "Os version: '%s'\nLanman Client: '%s'"%(OsVer, LanManClient)
+       print "Machine Hostname: '%s'\nThis machine is part of the '%s' domain\n"%(Hostname, DomainJoined)
+    except:
+       pass
+
+def ShowSmallResults(Host):
+    s = socket(AF_INET, SOCK_STREAM)
+    try:
+       s.settimeout(Timeout)
+       s.connect(Host)
+    except:
+       return False
+
+    try:
+       Hostname, DomainJoined = DomainGrab(Host)
+       Signing, OsVer, LanManClient = SmbFinger(Host)
+       Message = "[%s: '%s', domain: '%s', signing:'%s']"%(Host[0], OsVer, DomainJoined, Signing)
+       print Message
+    except:
+       pass
+
+def IsGrepable():
+    if options.Grep:
+       return True
+    else:
+       return False
+
+def RunFinger(Host):
+    m = re.search("/", str(Host))
+    if m :
+       net,_,mask = Host.partition('/')
+       mask = int(mask)
+       net = atod(net)
+       threads = []
+       for host in (dtoa(net+n) for n in range(0, 1<<32-mask)):
+           if IsGrepable():
+              p = multiprocessing.Process(target=ShowSmallResults, args=((host,445),))
+              threads.append(p)
+              p.start()
+           else:
+              p = multiprocessing.Process(target=ShowResults, args=((host,445),))
+              threads.append(p)
+              p.start()
+    else:
+      if IsGrepable():
+          ShowSmallResults((Host,445))
+      else:
+          ShowResults((Host,445))
+
+RunFinger(Host)
+