Network Configuration

MITRE ATT&CK™ System Network Configuration Discovery - Technique T1016

Theory

Understanding the target network configuration is a critical enumeration phase. Interfaces, routes, and active connections is pivotal for mapping out the network infrastructure and identifying potential points of entry or vulnerabilities.

This section will explore key commands used to enumerate and gather crucial network information, providing insights into how these commands aid in assessing and understanding the network environment.

Practice

Routing Table

route

The route print command may be used to display the routing table of a Windows system.

route print

Network Interfaces

ipconfig

IPConfig is a versatile command that provides comprehensive information about the network interfaces, IP addresses, subnet masks, DNS configuration, MAC addresses, and more.

# Display network interface informations
ipconfig /all

# Display local DNS cache
ipconfig /all

Display Connections

netstat

The netstat command may be used to displays active and listening network connections, including ports and associated processes.

# Display all connections and ports with associated process ID
netstat -ano

# Display all connections and ports with associated process ID + executable involved
# Require admin rights
netstat -bano

# Display only listening ports
netstat -an | findstr LISTENING

ARP Table

arp

The arp command in Windows can be used to display the ARP cache, which contains the mapping of IP addresses to MAC addresses within the local network. This command provides a list of known devices and their corresponding MAC addresses connected to the network.

arp -a

NetBIOS Name Cache

nbtstat

The nbtstat command may be used to displays the NetBIOS name table cache, listing the NetBIOS names and their corresponding IP addresses cached on the local system.

nbtstat -c

Resources

System Network Configuration Discovery, Technique T1016 - Enterprise | MITRE ATT&CK®attack.mitre.org