Many changes, bug fixes and improvements. scripts in 'tools' still need to be fixed.

tools/FindSMB2UPTime.py

@@ -0,0 +1,119 @@
+#! /usr/bin/env python
+# NBT-NS/LLMNR Responder
+# Created by Laurent Gaffie
+# Copyright (C) 2014 Trustwave Holdings, Inc.
+#
+# 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 datetime, struct
+import sys,socket,struct
+from socket import *
+from odict import OrderedDict
+
+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 GetBootTime(data):
+    Filetime = int(struct.unpack('<q',data)[0])
+    t = divmod(Filetime - 116444736000000000, 10000000)
+    time = datetime.datetime.fromtimestamp(t[0])
+    return time, time.strftime('%Y-%m-%d %H:%M:%S')
+
+
+def IsDCVuln(t):
+    Date = datetime.datetime(2014, 11, 17, 0, 30)
+    if t[0] < Date:
+       print "DC is up since:", t[1]
+       print "This DC is vulnerable to MS14-068"
+    else:
+       print "DC is up since:", t[1]
+
+def NbtLen(data):
+    Len = struct.pack(">i", len(data))
+    return Len
+
+from packets import SMBHeader
+"""
+class SMBHeader(Packet):
+    fields = OrderedDict([
+        ("Proto", "\xff\x53\x4d\x42"),
+        ("Cmd", "\x72"),
+        ("Error-Code", "\x00\x00\x00\x00" ),
+        ("Flag1", "\x10"),
+        ("Flag2", "\x00\x00"),
+        ("Pidhigh", "\x00\x00"),
+        ("Signature", "\x00\x00\x00\x00\x00\x00\x00\x00"),
+        ("Reserved", "\x00\x00"),
+        ("TID", "\x00\x00"),
+        ("PID", "\xff\xfe"),
+        ("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([
+        ("StrType","\x02" ),
+        ("dialect", "NT LM 0.12\x00"),
+        ("StrType1","\x02"),
+        ("dialect1", "SMB 2.002\x00"),
+        ("StrType2","\x02"),
+        ("dialect2", "SMB 2.???\x00"),
+    ])
+
+def run(host):
+    s = socket(AF_INET, SOCK_STREAM)
+    s.connect(host)  
+    s.settimeout(5) 
+    h = SMBHeader(Cmd="\x72",Flag1="\x18",Flag2="\x53\xc8")
+    n = SMBNego(Data = SMBNegoData())
+    n.calculate()
+    packet0 = str(h)+str(n)
+    buffer0 = NbtLen(packet0)+packet0
+    s.send(buffer0)
+    try:
+        data = s.recv(1024)
+        if data[4:5] == "\xff":
+           print "This host doesn't support SMBv2" 
+        if data[4:5] == "\xfe":
+           IsDCVuln(GetBootTime(data[116:124]))
+    except Exception:
+        s.close()
+        raise
+
+if __name__ == "__main__":
+    if len(sys.argv)<=1:
+        sys.exit('Usage: python '+sys.argv[0]+' DC-IP-address')
+    host = sys.argv[1],445
+    run(host)