Table of Contents |
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Overview
This document will provide detailed information to forward logs to Seceon SIEM Tool when the Microsoft Server serves as Domain Controller, DNS, DHCP, Windows AD, Windows MS Exchange, Windows MSSQL role.
Prerequisite
Microsoft Server serves as DNS & DHCP.along with Windows AD+Windows MS Exchange+Windows MSSQL + Windows IIS
Nxlog Utility needs to be installed on the Server with the required privileges.
The NXLog configuration file is comprised of blocks and directives. Blocks are similar to XML tags containing multiple directives. Directive names are not case-sensitive but arguments sometimes are.
Ref. link: https://docs.nxlog.co/userguide/configure/overview.html
Configuration Steps
This is a sample configuration file. See the nxlog reference manual about
configuration options. It should be installed locally
Please set the ROOT to the folder your nxlog was installed into, otherwise, it will not start. Additionally ensure that some of the place holders are updated for your environment. Examples of a place holders are CCE_IP_ADDRESS, and filenames for logfiles to read from.
Code Block |
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#Windows Server AD Server logs from Line no. 3 to 56 ## Please set the ROOT to the folder your nxlog was installed into, ## otherwise it will not start. define ROOT C:\Program Files\nxlog #define ROOT C:\Program Files (x86)\nxlog #define ROOT C:\Program Files (x86)\nxlog Moduledir %ROOT%\modules CacheDir %ROOT%\data Pidfile %ROOT%\data\nxlog.pid SpoolDir %ROOT%\data LogFile %ROOT%\data\nxlog.log <Extension _json> Module xm_json </Extension> #Extension for MSSQL <Extension mssql_csv> Module xm_csv Fields $Hostname, $SourceName, $Action_ID, $Result, $DataBase, $SV_Instace, $User, $Message FieldTypes string, string, string, string, string, string, string, string Delimiter ; </Extension> define aisiem \ 1, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18,19, 20, 21, 104, 258, 259, 260, \ 261, 262, 500, 517, 520, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539,\ 540, 551, 552, 565, 600, 608, 609, 621, 622, 626, 627, 628, 629, 630, 636, 642, 644,\ 645, 647, 632, 663, 664, 671, 673, 675, 676, 677, 679, 680, 681, 682, 683, 684, 689,\ 690, 692, 1001, 1006, 1007, 1008, 1015, 1102, 1116, 1117, 1118, 1119, 2003, 2100, \ 7034, 4624, 4625, 4634, 4647, 4649, 4656, 4657, 4659, 4661, 4663, 4670, 4688, 4697, \ 4704, 4705, 4717, 4718, 4720, 4722, 4723, 4724, 4725, 4726, 4727, 4728, 4729, 4730, \ 4731, 4732, 4733, 4734, 4735, 4737, 4738, 4739, 4740, 4741, 4742, 4743, 4744, 4745, \ 4746, 4747, 4748, 4749, 4750, 4751, 4752, 4753, 4754, 4755, 4756, 4757, 4758, 4759, \ 4760, 4761, 4762, 4763, 4764, 4767, 4769, 4771, 4772, 4773, 4775, 4776, 4777, 4778, \ 4779, 4780, 4782, 4783, 4784, 4785, 4786, 4787, 4788, 4789, 4790, 4791, 4793, 4794, \ 4797, 4798, 4800, 4801, 4802, 4803, 5001, 5004, 5007, 5010, 5012, 5136, 5137, 5140, \ 5141, 5142, 5143, 5144, 5145, 5376, 5377, 7045, 8003, 8004, 8007, 64004 <Input in> Module im_msvistalog Query <QueryList>\ <Query Id="0">\ <Select Path="Security">* </Select>\ <Select Path="Application">* </Select>\ <Select Path="Setup">* </Select>\ <Select Path="System">* </Select>\ </Query>\ </QueryList> <Exec> if ($EventID NOT IN (%aisiem%)) drop(); </Exec> </Input> #Windows Server act as DNS Server logs from Line no. 60 to 69 <Input DNS_In> Module im_file File "C:\\Windows\\Sysnative\\dns\dns*" SavePos TRUE InputType LineBased Exec if $raw_event =~ /^#/ drop(); Exec $Message = $raw_event; </Input> #Windows Server act as DHCP Server logs from Line no. 70 to 79 <Input DHCP_In> Module im_file File "C:\Windows\Sysnative\dhcp\DhcpSrvLog*" SavePos TRUE Exec if $raw_event =~ /^#/ drop(); Exec $Message = $raw_event; </Input> #Windows Server act as IIS Server logs from Line no. 80 to 90 <Input in_iis> Module im_file File "C:\\inetpub\\logs\\LogFiles\\W3SVC*\u_ex*" SavePos TRUE ReadFromLast TRUE Exec if $raw_event =~ /^#/ drop(); Exec $Message = $raw_event; </Input> <Input in_mssql> Module im_msvistalog SavePos FALSE ReadFromLast TRUE Exec $Message = $raw_event; # Finding some values: Exec if $raw_event =~ /action_id:(\S+)/ $Action_ID = $1; Exec if $raw_event =~ /database_name:(\S+)/ $DataBase = $1; Exec if $raw_event =~ /server_instance_name:(\S+)/ $SV_Instace = $1; Exec if $raw_event =~ /session_server_principal_name:(\S+)/ $User = $1; Exec if $raw_event =~ /AUDIT_SUCCESS/\ {\ $Result = 'Success';\ }\ else\ $Result = 'Failure'; # Replace white spaces Exec $Message = replace($Message, "\t", " "); $Message = replace($Message, "\n", " "); $Message = replace($Message, "\r", " "); </Input> <Input in_exchange> Module im_file File 'C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\Logs\MessageTracking' SavePos TRUE Exec if $raw_event =~ /HealthMailbox/ drop(); Exec if $raw_event =~ /^#/ drop(); </Input> <Output out> Module om_udp Host CCE_IP_ADDRESS Port 5154 Exec to_json(); </Output> <Output DNS_Out> Module om_udp Host CCE_IP_ADDRESS Port 514 Exec $SyslogFacilityValue = 2; Exec $SourceName = 'windows_dns_logs'; Exec to_syslog_bsd(); </Output> <Output DHCP_Out> Module om_udp Host {CCE_IP ADDRESS} Port 514 Exec $SyslogFacilityValue = 2; Exec $SourceName = 'windows_dhcp_logs'; Exec to_syslog_bsd(); </Output> <Output out_iis> Module om_udp Host CCE_IP_ADDRESS Port 514 Exec $SyslogFacilityValue = 2; Exec $SourceName = 'windows_iis_logs'; Exec to_syslog_bsd(); </Output> <Output out_mssql> Module om_udp Host CCE_IP_ADDRESS Port 514 # Ensure we send in the proper format: Exec $Hostname = hostname_fqdn(); Exec mssql_csv->to_csv(); $raw_event = $Hostname + ' mssql_logs: ' + $raw_event; </Output> <Extension mssql_csv> Module xm_csv Fields $Hostname, $SourceName, $Action_ID, $Result, $DataBase, $SV_Instace, $User, $Message FieldTypes string, string, string, string, string, string, string, string Delimiter ; </Extension> <Output out_exchange> Module om_udp Host CCE_IP_ADDRESS Port 514 Exec $SyslogFacilityValue = 2; Exec $SourceName = 'exchange_msgtrk_log'; Exec to_syslog_bsd(); </Output> <Route 1> Path in => out </Route> <Route DNS> Path DNS_In => DNS_Out </Route> <Route DHCP> Path DHCP_In=> DHCP_Out </Route> <Route in-to-out> Path in_iis => out_iis </Route> <Route mssql> Path in_mssql => out_mssql </Route> <Route 1> Path in_exchange => out_exchange </Route> |
Note:
To Enable the logging of IIS, DNS, and MSSQL, Please follow the below link instruction.
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For Windows Events: Enable Windows Events Logs(Audit Policies)
Verification Steps:
This can validate the success of configuration either on UI or on the CCE server.
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