Python impacket.dcerpc.v5.rpcrt.RPC_C_AUTHN_LEVEL_PKT_INTEGRITY Examples

The following are 16 code examples of impacket.dcerpc.v5.rpcrt.RPC_C_AUTHN_LEVEL_PKT_INTEGRITY(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module impacket.dcerpc.v5.rpcrt , or try the search function .
Example #1
Source File: test_tsch.py    From CVE-2017-7494 with GNU General Public License v3.0 6 votes vote down vote up 
def connect(self, stringBinding, bindUUID):
        rpctransport = transport.DCERPCTransportFactory(stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.connect()
        dce.bind(bindUUID, transfer_syntax = self.ts)

        return dce, rpctransport
Example #2
Source File: test_drsuapi.py    From CVE-2017-7494 with GNU General Public License v3.0 6 votes vote down vote up 
def connect2(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        #dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(drsuapi.MSRPC_UUID_DRSUAPI, transfer_syntax = self.ts)

        return dce, rpctransport
Example #3
Source File: test_tsch.py    From cracke-dit with MIT License 6 votes vote down vote up 
def connect(self, stringBinding, bindUUID):
        rpctransport = transport.DCERPCTransportFactory(stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.connect()
        dce.bind(bindUUID, transfer_syntax = self.ts)

        return dce, rpctransport
Example #4
Source File: test_drsuapi.py    From cracke-dit with MIT License 6 votes vote down vote up 
def connect2(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        #dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(drsuapi.MSRPC_UUID_DRSUAPI, transfer_syntax = self.ts)

        return dce, rpctransport
Example #5
Source File: test_tsch.py    From Slackor with GNU General Public License v3.0 6 votes vote down vote up 
def connect(self, stringBinding, bindUUID):
        rpctransport = transport.DCERPCTransportFactory(stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.connect()
        dce.bind(bindUUID, transfer_syntax = self.ts)

        return dce, rpctransport
Example #6
Source File: test_drsuapi.py    From Slackor with GNU General Public License v3.0 6 votes vote down vote up 
def connect2(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        #dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(drsuapi.MSRPC_UUID_DRSUAPI, transfer_syntax = self.ts)

        return dce, rpctransport
Example #7
Source File: test_tsch.py    From PiBunny with MIT License 6 votes vote down vote up 
def connect(self, stringBinding, bindUUID):
        rpctransport = transport.DCERPCTransportFactory(stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.connect()
        dce.bind(bindUUID, transfer_syntax = self.ts)

        return dce, rpctransport
Example #8
Source File: test_drsuapi.py    From PiBunny with MIT License 6 votes vote down vote up 
def connect2(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        #dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(drsuapi.MSRPC_UUID_DRSUAPI, transfer_syntax = self.ts)

        return dce, rpctransport
Example #9
Source File: test_mimilib.py    From CVE-2017-7494 with GNU General Public License v3.0 5 votes vote down vote up 
def connect(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding)
        rpctransport.set_connect_timeout(30000)
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        #if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
        #    rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        #dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.connect()
        dce.bind(mimilib.MSRPC_UUID_MIMIKATZ, transfer_syntax = self.ts)
        dh = mimilib.MimiDiffeH()
        blob = mimilib.PUBLICKEYBLOB()
        blob['y'] = dh.genPublicKey()[::-1]
        request = mimilib.MimiBind()
        request['clientPublicKey']['sessionType'] = mimilib.CALG_RC4
        request['clientPublicKey']['cbPublicKey'] = 144
        request['clientPublicKey']['pbPublicKey'] = str(blob)
        resp = dce.request(request)
        blob = mimilib.PUBLICKEYBLOB(''.join(resp['serverPublicKey']['pbPublicKey']))
        key = dh.getSharedSecret(''.join(blob['y'])[::-1])
        pHandle = resp['phMimi']

        return dce, rpctransport, pHandle, key[-16:]
Example #10
Source File: test_mimilib.py    From cracke-dit with MIT License 5 votes vote down vote up 
def connect(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding)
        rpctransport.set_connect_timeout(30000)
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        #if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
        #    rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        #dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.connect()
        dce.bind(mimilib.MSRPC_UUID_MIMIKATZ, transfer_syntax = self.ts)
        dh = mimilib.MimiDiffeH()
        blob = mimilib.PUBLICKEYBLOB()
        blob['y'] = dh.genPublicKey()[::-1]
        request = mimilib.MimiBind()
        request['clientPublicKey']['sessionType'] = mimilib.CALG_RC4
        request['clientPublicKey']['cbPublicKey'] = 144
        request['clientPublicKey']['pbPublicKey'] = str(blob)
        resp = dce.request(request)
        blob = mimilib.PUBLICKEYBLOB(''.join(resp['serverPublicKey']['pbPublicKey']))
        key = dh.getSharedSecret(''.join(blob['y'])[::-1])
        pHandle = resp['phMimi']

        return dce, rpctransport, pHandle, key[-16:]
Example #11
Source File: goldenPac.py    From Slackor with GNU General Public License v3.0 5 votes vote down vote up 
def getDomainControllers(self):
        logging.debug('Calling DRSDomainControllerInfo()')

        stringBinding = epm.hept_map(self.__domain, MSRPC_UUID_DRSUAPI, protocol = 'ncacn_ip_tcp')

        rpctransport = transport.DCERPCTransportFactory(stringBinding)

        if hasattr(rpctransport, 'set_credentials'):
            rpctransport.set_credentials(self.__username,self.__password, self.__domain, self.__lmhash, self.__nthash)

        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(MSRPC_UUID_DRSUAPI)

        request = DRSBind()
        request['puuidClientDsa'] = NTDSAPI_CLIENT_GUID
        drs = DRS_EXTENSIONS_INT()
        drs['cb'] = len(drs) #- 4
        drs['dwFlags'] = DRS_EXT_GETCHGREQ_V6 | DRS_EXT_GETCHGREPLY_V6 | DRS_EXT_GETCHGREQ_V8 | DRS_EXT_STRONG_ENCRYPTION
        drs['SiteObjGuid'] = NULLGUID
        drs['Pid'] = 0
        drs['dwReplEpoch'] = 0
        drs['dwFlagsExt'] = 0
        drs['ConfigObjGUID'] = NULLGUID
        drs['dwExtCaps'] = 127
        request['pextClient']['cb'] = len(drs.getData())
        request['pextClient']['rgb'] = list(drs.getData())
        resp = dce.request(request)

        dcs = hDRSDomainControllerInfo(dce,  resp['phDrs'], self.__domain, 1)

        dce.disconnect()
        domainControllers = list()
        for dc in dcs['pmsgOut']['V1']['rItems']:
            logging.debug('Found domain controller %s' % dc['DnsHostName'][:-1])
            domainControllers.append(dc['DnsHostName'][:-1])

        return domainControllers
Example #12
Source File: goldenPac.py    From PiBunny with MIT License 5 votes vote down vote up 
def getDomainControllers(self):
        logging.debug('Calling DRSDomainControllerInfo()')

        stringBinding = epm.hept_map(self.__domain, MSRPC_UUID_DRSUAPI, protocol = 'ncacn_ip_tcp')

        rpctransport = transport.DCERPCTransportFactory(stringBinding)

        if hasattr(rpctransport, 'set_credentials'):
            rpctransport.set_credentials(self.__username,self.__password, self.__domain, self.__lmhash, self.__nthash)

        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(MSRPC_UUID_DRSUAPI)

        request = DRSBind()
        request['puuidClientDsa'] = NTDSAPI_CLIENT_GUID
        drs = DRS_EXTENSIONS_INT()
        drs['cb'] = len(drs) #- 4
        drs['dwFlags'] = DRS_EXT_GETCHGREQ_V6 | DRS_EXT_GETCHGREPLY_V6 | DRS_EXT_GETCHGREQ_V8 | DRS_EXT_STRONG_ENCRYPTION
        drs['SiteObjGuid'] = NULLGUID
        drs['Pid'] = 0
        drs['dwReplEpoch'] = 0
        drs['dwFlagsExt'] = 0
        drs['ConfigObjGUID'] = NULLGUID
        drs['dwExtCaps'] = 127
        request['pextClient']['cb'] = len(drs)
        request['pextClient']['rgb'] = list(str(drs))
        resp = dce.request(request)

        dcs = hDRSDomainControllerInfo(dce,  resp['phDrs'], self.__domain, 1)

        dce.disconnect()
        domainControllers = list()
        for dc in dcs['pmsgOut']['V1']['rItems']:
            logging.debug('Found domain controller %s' % dc['DnsHostName'][:-1])
            domainControllers.append(dc['DnsHostName'][:-1])

        return domainControllers
Example #13
Source File: test_drsuapi.py    From CVE-2017-7494 with GNU General Public License v3.0 4 votes vote down vote up 
def connect(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(drsuapi.MSRPC_UUID_DRSUAPI, transfer_syntax = self.ts)

        request = drsuapi.DRSBind()
        request['puuidClientDsa'] = drsuapi.NTDSAPI_CLIENT_GUID
        drs = drsuapi.DRS_EXTENSIONS_INT()
        drs['cb'] = len(drs) #- 4
        drs['dwFlags'] = drsuapi.DRS_EXT_GETCHGREQ_V6 | drsuapi.DRS_EXT_GETCHGREPLY_V6 | drsuapi.DRS_EXT_GETCHGREQ_V8 | drsuapi.DRS_EXT_STRONG_ENCRYPTION
        drs['SiteObjGuid'] = drsuapi.NULLGUID
        drs['Pid'] = 0
        drs['dwReplEpoch'] = 0
        drs['dwFlagsExt'] = drsuapi.DRS_EXT_RECYCLE_BIN
        drs['ConfigObjGUID'] = drsuapi.NULLGUID
        drs['dwExtCaps'] = 0
        request['pextClient']['cb'] = len(drs)
        request['pextClient']['rgb'] = list(str(drs))
        resp = dce.request(request)

        # Let's dig into the answer to check the dwReplEpoch. This field should match the one we send as part of
        # DRSBind's DRS_EXTENSIONS_INT(). If not, it will fail later when trying to sync data.
        drsExtensionsInt = drsuapi.DRS_EXTENSIONS_INT()

        # If dwExtCaps is not included in the answer, let's just add it so we can unpack DRS_EXTENSIONS_INT right.
        ppextServer = ''.join(resp['ppextServer']['rgb']) + '\x00' * (
            len(drsuapi.DRS_EXTENSIONS_INT()) - resp['ppextServer']['cb'])
        drsExtensionsInt.fromString(ppextServer)

        if drsExtensionsInt['dwReplEpoch'] != 0:
            # Different epoch, we have to call DRSBind again
            drs['dwReplEpoch'] = drsExtensionsInt['dwReplEpoch']
            request['pextClient']['cb'] = len(drs)
            request['pextClient']['rgb'] = list(str(drs))
            resp = dce.request(request)

        resp2 = drsuapi.hDRSDomainControllerInfo(dce,  resp['phDrs'], self.domain, 2)

        return dce, rpctransport, resp['phDrs'], resp2['pmsgOut']['V2']['rItems'][0]['NtdsDsaObjectGuid']
Example #14
Source File: test_drsuapi.py    From cracke-dit with MIT License 4 votes vote down vote up 
def connect(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(drsuapi.MSRPC_UUID_DRSUAPI, transfer_syntax = self.ts)

        request = drsuapi.DRSBind()
        request['puuidClientDsa'] = drsuapi.NTDSAPI_CLIENT_GUID
        drs = drsuapi.DRS_EXTENSIONS_INT()
        drs['cb'] = len(drs) #- 4
        drs['dwFlags'] = drsuapi.DRS_EXT_GETCHGREQ_V6 | drsuapi.DRS_EXT_GETCHGREPLY_V6 | drsuapi.DRS_EXT_GETCHGREQ_V8 | drsuapi.DRS_EXT_STRONG_ENCRYPTION
        drs['SiteObjGuid'] = drsuapi.NULLGUID
        drs['Pid'] = 0
        drs['dwReplEpoch'] = 0
        drs['dwFlagsExt'] = drsuapi.DRS_EXT_RECYCLE_BIN
        drs['ConfigObjGUID'] = drsuapi.NULLGUID
        drs['dwExtCaps'] = 0
        request['pextClient']['cb'] = len(drs)
        request['pextClient']['rgb'] = list(str(drs))
        resp = dce.request(request)

        # Let's dig into the answer to check the dwReplEpoch. This field should match the one we send as part of
        # DRSBind's DRS_EXTENSIONS_INT(). If not, it will fail later when trying to sync data.
        drsExtensionsInt = drsuapi.DRS_EXTENSIONS_INT()

        # If dwExtCaps is not included in the answer, let's just add it so we can unpack DRS_EXTENSIONS_INT right.
        ppextServer = ''.join(resp['ppextServer']['rgb']) + '\x00' * (
            len(drsuapi.DRS_EXTENSIONS_INT()) - resp['ppextServer']['cb'])
        drsExtensionsInt.fromString(ppextServer)

        if drsExtensionsInt['dwReplEpoch'] != 0:
            # Different epoch, we have to call DRSBind again
            drs['dwReplEpoch'] = drsExtensionsInt['dwReplEpoch']
            request['pextClient']['cb'] = len(drs)
            request['pextClient']['rgb'] = list(str(drs))
            resp = dce.request(request)

        resp2 = drsuapi.hDRSDomainControllerInfo(dce,  resp['phDrs'], self.domain, 2)

        return dce, rpctransport, resp['phDrs'], resp2['pmsgOut']['V2']['rItems'][0]['NtdsDsaObjectGuid']
Example #15
Source File: test_drsuapi.py    From Slackor with GNU General Public License v3.0 4 votes vote down vote up 
def connect(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(drsuapi.MSRPC_UUID_DRSUAPI, transfer_syntax = self.ts)

        request = drsuapi.DRSBind()
        request['puuidClientDsa'] = drsuapi.NTDSAPI_CLIENT_GUID
        drs = drsuapi.DRS_EXTENSIONS_INT()
        drs['cb'] = len(drs) #- 4
        drs['dwFlags'] = drsuapi.DRS_EXT_GETCHGREQ_V6 | drsuapi.DRS_EXT_GETCHGREPLY_V6 | drsuapi.DRS_EXT_GETCHGREQ_V8 | drsuapi.DRS_EXT_STRONG_ENCRYPTION
        drs['SiteObjGuid'] = drsuapi.NULLGUID
        drs['Pid'] = 0
        drs['dwReplEpoch'] = 0
        drs['dwFlagsExt'] = drsuapi.DRS_EXT_RECYCLE_BIN
        drs['ConfigObjGUID'] = drsuapi.NULLGUID
        drs['dwExtCaps'] = 0
        request['pextClient']['cb'] = len(drs.getData())
        request['pextClient']['rgb'] = list(drs.getData())
        resp = dce.request(request)

        # Let's dig into the answer to check the dwReplEpoch. This field should match the one we send as part of
        # DRSBind's DRS_EXTENSIONS_INT(). If not, it will fail later when trying to sync data.
        drsExtensionsInt = drsuapi.DRS_EXTENSIONS_INT()

        # If dwExtCaps is not included in the answer, let's just add it so we can unpack DRS_EXTENSIONS_INT right.
        ppextServer = b''.join(resp['ppextServer']['rgb']) + b'\x00' * (
            len(drsuapi.DRS_EXTENSIONS_INT()) - resp['ppextServer']['cb'])
        drsExtensionsInt.fromString(ppextServer)

        if drsExtensionsInt['dwReplEpoch'] != 0:
            # Different epoch, we have to call DRSBind again
            drs['dwReplEpoch'] = drsExtensionsInt['dwReplEpoch']
            request['pextClient']['cb'] = len(drs.getData())
            request['pextClient']['rgb'] = list(drs.getData())
            resp = dce.request(request)

        resp2 = drsuapi.hDRSDomainControllerInfo(dce,  resp['phDrs'], self.domain, 2)

        return dce, rpctransport, resp['phDrs'], resp2['pmsgOut']['V2']['rItems'][0]['NtdsDsaObjectGuid']
Example #16
Source File: test_drsuapi.py    From PiBunny with MIT License 4 votes vote down vote up 
def connect(self):
        rpctransport = transport.DCERPCTransportFactory(self.stringBinding )
        if len(self.hashes) > 0:
            lmhash, nthash = self.hashes.split(':')
        else:
            lmhash = ''
            nthash = ''
        if hasattr(rpctransport, 'set_credentials'):
            # This method exists only for selected protocol sequences.
            rpctransport.set_credentials(self.username,self.password, self.domain, lmhash, nthash)
        dce = rpctransport.get_dce_rpc()
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
        dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
        dce.connect()
        dce.bind(drsuapi.MSRPC_UUID_DRSUAPI, transfer_syntax = self.ts)

        request = drsuapi.DRSBind()
        request['puuidClientDsa'] = drsuapi.NTDSAPI_CLIENT_GUID
        drs = drsuapi.DRS_EXTENSIONS_INT()
        drs['cb'] = len(drs) #- 4
        drs['dwFlags'] = drsuapi.DRS_EXT_GETCHGREQ_V6 | drsuapi.DRS_EXT_GETCHGREPLY_V6 | drsuapi.DRS_EXT_GETCHGREQ_V8 | drsuapi.DRS_EXT_STRONG_ENCRYPTION
        drs['SiteObjGuid'] = drsuapi.NULLGUID
        drs['Pid'] = 0
        drs['dwReplEpoch'] = 0
        drs['dwFlagsExt'] = drsuapi.DRS_EXT_RECYCLE_BIN
        drs['ConfigObjGUID'] = drsuapi.NULLGUID
        drs['dwExtCaps'] = 0
        request['pextClient']['cb'] = len(drs)
        request['pextClient']['rgb'] = list(str(drs))
        resp = dce.request(request)

        # Let's dig into the answer to check the dwReplEpoch. This field should match the one we send as part of
        # DRSBind's DRS_EXTENSIONS_INT(). If not, it will fail later when trying to sync data.
        drsExtensionsInt = drsuapi.DRS_EXTENSIONS_INT()

        # If dwExtCaps is not included in the answer, let's just add it so we can unpack DRS_EXTENSIONS_INT right.
        ppextServer = ''.join(resp['ppextServer']['rgb']) + '\x00' * (
            len(drsuapi.DRS_EXTENSIONS_INT()) - resp['ppextServer']['cb'])
        drsExtensionsInt.fromString(ppextServer)

        if drsExtensionsInt['dwReplEpoch'] != 0:
            # Different epoch, we have to call DRSBind again
            drs['dwReplEpoch'] = drsExtensionsInt['dwReplEpoch']
            request['pextClient']['cb'] = len(drs)
            request['pextClient']['rgb'] = list(str(drs))
            resp = dce.request(request)

        resp2 = drsuapi.hDRSDomainControllerInfo(dce,  resp['phDrs'], self.domain, 2)

        return dce, rpctransport, resp['phDrs'], resp2['pmsgOut']['V2']['rItems'][0]['NtdsDsaObjectGuid']