Accenture MDR Quick Start Guide for Microsoft Windows Defender Firewall (Generic TCP)

Owned by KS
Last updated: Mar 08, 2023
4 min read

This quick start guide will help Accenture Security customers configure Microsoft Windows Defender Firewall TCP to send logs to the Log collection Platform (LCP).

 

This document includes the following topics:

Supported Versions

A list of supported versions is available in the Accenture MDR Supported Products List document

(Accenture_MDR_Supported_Products_List.xlsx) which can be found at Accenture MDR Portal.

Port Requirements

Table 1-1: Port requirements for LCP communication.

Source

Destination

Port

Description

Microsoft Defender Firewall

LCP

10013 (TCP with Non-TLS) or

10014 (TCP with TLS)

Default port

Configuring Microsoft Windows Defender Firewall

 

  1. Open the Group Policy Management Console and navigate to Windows Defender Firewall with Advanced Security.

2. In the details pane, in the Overview section, click Windows Defender Firewall Properties.

3.For each network location type (Domain, Private, Public), perform the following steps.

a. Click the tab that corresponds to the network location type(Domain, Private, Public).

b. Under Logging, click Customize.

c. The default path for the log is %windir%\system32\logfiles\firewall\pfirewall.log

Important:  The default file location must have permissions assigned that permit the Windows Defender Firewall service to write to the log file.

d. The default maximum file size for the log is 4,096 kilobytes (KB). If you want to change this size, clear the Not configured check box, and type in the new size in KB, or use the up and down arrows to select a size. The file won't grow beyond this size; when the limit is reached, old log entries are deleted to make room for the newly created ones.

e. No logging occurs until you set one of following two options:

f. To create a log entry when Windows Defender Firewall drops an incoming network packet, change Log dropped packets to Yes.

g. To create a log entry when Windows Defender Firewall allows an inbound connection, change Log successful connections to Yes.

h. Click OK twice.

i. Repeat above steps for all three network location type Domain, Private and Public.

To configure Windows Nxlog Agent, follow any one of the below options

Windows NxLog Agent for Non TLS TCP 

Windows NxLog Agent for TLS TCP

Steps to configure Windows NxLog Agent for Non TLS TCP Log flow on port 10013

  1. Download and Install NxLog agent from Download

  2. Go to services.msc and stop the nxlog service

  3. Go to folder C:\Program Files (x86)\nxlog\data and delete configcache.dat

  4. For Windows Agent , go to the installed location C:\Program Files (x86)\nxlog\conf

  5. Copy the below Windows Defender Firewall(Non - TLS) steps to nxlog.conf file attached

6. Replace LCP_IP_Address with actual LCP IP address in nxlog.conf

7. Now start the nxlog service from services.msc

8.NxLog agent logs will be available at location C:\Program Files (x86)\nxlog\data\nxlog.log

Steps to configure Windows NxLog Agent for TLS TCP Log flow on port 10014

  1. Download and Install NxLog agent from location Download

  2. Go to services.msc and stop the nxlog service

Note: Please contact the Accenture MDR onboarding team to obtain the certificate

3. Place the certificate in the Windows server which is obtained from the MDR onboarding team at your desired location

4. Go to folder C:\Program Files (x86)\nxlog\data and delete configcache.dat

5. For Windows Agent, go to installed location C:\Program Files (x86)\nxlog\conf 

6. Copy the below Windows Defender Firewall(TLS) steps to nxlog.conf file attached

7. Replace LCP_IP_Address with actual LCP IP address in nxlog.conf

8. Provide the file location for the CA certificate on the DNS server

9. Now start the nxlog service from services.msc

10. NxLog agent logs will be available at location C:\Program Files (x86)\nxlog\data\nxlog.log

LCP Configuration Parameters

Table 1-2: The Microsoft Windows defender firewall event collector (Syslog -4008) properties to be configured by MDR are shown in the table.

Property

Default Value

Description

Protocol

TCP

The default protocol for syslog.

IP Address

Microsoft Windows Defender Firewall Interface IP address

Logging device IP address mentioned in the Pre-Installation Questionnaire (PIQ).

Note: If the device sends logs using multiple interfaces, contact the MDR onboarding team.

Port Number

TCP/10013

or TCP/10014

The default port for TCP.

Note: The LCP can be configured to listen on a non-standard port, please advise the Accenture MDR onboarding team if this is a requirement.

 

 

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