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The Network device discovery and vulnerability assessments Blog (published 04-13-2021) provides insights into the new Network device discovery capabilities in Defender for Endpoint. This article provides an overview of the challenge that Network device discovery is designed to address, and detailed information about how get started using these new capabilities.
A designated Microsoft Defender for Endpoint device is used on each network segment to perform periodic authenticated scans of preconfigured network devices. Once discovered, vulnerability management capabilities in Defender for Endpoint provide integrated workflows to secure discovered switches, routers, WLAN controllers, firewalls, and VPN gateways.
Once the network devices are discovered and classified, security administrators are able to receive the latest security recommendations and review recently discovered vulnerabilities on network devices deployed across their organizations.
Network devices aren't managed as standard endpoints since Defender for Endpoint doesn't have a sensor built into the network devices themselves. These types of devices require an agentless approach where a remote scan obtains the necessary information from the devices. Depending on the network topology and characteristics, a single device or a few devices onboarded to Microsoft Defender for Endpoint performs authenticated scans of network devices using SNMP (read-only).
More networking vendors and OS will be added over time, based on data gathered from customer usage. Therefore, you're encouraged to configure all your network devices, even if they're not specified in this list.
Make sure SNMP read-only is enabled on all configured network devices to allow the Defender for Endpoint scanning device to query the configured network devices. 'SNMP write' isn't needed for the proper functionality of this feature.
To configure scan jobs, the following user permission option is required: Manage security settings in Defender. You can find the permission by going to Settings > Roles. For more information, see Create and manage roles for role-based access control.
The scanner has a scheduled task that, by default, is configured to look for updates regularly. When the task runs, it compares the version of the scanner on the client device to the version of the agent on the update location. The update location is where Windows looks for updates, such as on a network share or from the internet.
If there's a difference between the two versions, the update process determines which files are different and need to be updated on the local computer. Once the required updates are determined, the downloading of the updates start.
Enter the Target (range): The IP address ranges or hostnames you want to scan. You can either enter the addresses or import a CSV file. Importing a file overrides any manually added addresses.
You can select to Use azure KeyVault for providing credentials: If you manage your credentials in Azure KeyVault, you can enter the Azure KeyVault URL and Azure KeyVault secret name to be accessed by the scanning device to provide credentials. The secret value is dependent on the Authenticated Method you choose, as described in the following table:
Each scanning device can support up to 1,500 successful IP addresses scan. For example, if you scan 10 different subnets where only 100 IP addresses return successful results, you'll be able to scan 1,400 IP additional addresses from other subnets on the same scanning device.
Once the results show up, you can choose which devices will be included in the periodic scan. If you skip viewing the scan results, all configured IP addresses are added to the network device authenticated scan (regardless of the device's response). The scan results can also be exported.
Newly discovered devices are shown under the new Network devices tab in the Device inventory page. It may take up to two hours after adding a scanning job until the devices are updated.
Verify that the required URLs are added to the allowed domains in your firewall settings. Also, make sure proxy settings are configured as described in Configure device proxy and Internet connectivity settings.
Verify that the required URLs are added to the allowed domains in your firewall. Also, make sure proxy settings are configured as described in Configure device proxy and Internet connectivity settings.
If devices are still not shown, verify that the service 'MdatpNetworkScanService' is running on your devices being scanned, on which you installed the scanner, and perform a "Run scan" in the relevant network device authenticated scan configuration.
As the authenticated scanner currently uses an encryption algorithm that isn't compliant with Federal Information Processing Standards (FIPS), the scanner can't operate when an organization enforces the use of FIPS compliant algorithms.
MyLanViewer Network/IP Scanner is a powerful IP address scanner for local area network (LAN). This application will help you find all IP addresses, MAC addresses and shared folders of computers on your wired or wireless (Wi-Fi) network. The program scans network and displays your network computers in an easy to read, buddy-list style window that provides the computer name, IP address, MAC address, NIC vendor, OS version, logged users, shared folders and other technical details for each computer. It is able to monitor your external IP address and send email notifications when it changes. MyLanViewer Network/IP Scanner can also turn on and off remote computers, view and control your shared folders, terminate user sessions, show netstat information, detect rogue DHCP servers and other network tools. The software can monitor all devices (even hidden) on your subnet, and send alerts when the new devices will be found (for example, to know who is connected to your WiFi router or wireless network). The program easy to install and use, and has a user-friendly and beautiful interface.
How to see who is connected to your wireless (Wi-Fi) network with MyLanViewer Network/IP Scanner
Remote Computer Manager is a network utility for remote computer management. The program allow network administrators to centrally manage network PCs and make: remote desktop control, remote shutdown, run (execute) commands, launch applications and processes, Wake-on-LAN over IPv4, Wake on LAN over IPv6, lock workstation, log on, log off, sleep, hibernate, wake up, reboot, power off, lock and unlock input devices, registry merge, file copy, installation of MSI packages, clock (time) synchronization and other remote operations for Windows and Linux PCs. Using Remote Computer Manager you can perform a remote shutdown, power on (turn on), power off (turn off) and restart (reset) the remote computer with Intel AMT (Active Management Technology) and AMD DASH (Desktop and Mobile Architecture for System Hardware). The program can also get the list of remote processes and services, remote netstat, remote screenshot, remote registry, remote event log and other details for each PC. Using the application you can make remote operations on one or multiple network computers with one click. Remote operations can be executed automatically according with defined schedule, so you can organize fully automatic computer management for your company. The program supports IPv4 and IPv6 protocol.
Wake-On-LAN Proxy Server is a network tool that helps network administrators to organize the reception and transmission of magic packets (wakeup signals, which are sent through programs that support the Wake-on-LAN technology) on the network. The program is designed to protect the network from unwanted magic packets, to help the delivery of broadcast traffic between subnets and to reduce the load on the network infrastructure between subnets. This utility works as a UDP proxy server for magic packets, which can filter and modify incoming magic packets and forward them to other network addresses. Wake-On-LAN Proxy Server can be run as a service or as a startup process. The program supports IPv4 and IPv6 addresses.
Ping Manager is a set of network tools, based on ICMP requests, which includes: regular ping, scan IP address range, trace route and path ping. The utility can store up to 1000 pages and manage them simultaneously. Each page has a unique setting for both manual and automatic operation. The obtained results of the program can be saved in txt or csv file in a manual or automatic mode.
Shortcuts To Tray is a tool for quick access to your favorite links and shortcuts from the system tray. The program keeps your favorite links and shortcuts on files, folders, applications, Internet and network resources, command lines, system resources and more. It allows you to run applications and command lines as administrator. The program does not require installation and can be used on portable devices.
Socks Proxy Scanner is an application that helps you find IP addresses of SOCKS proxy servers on network. Socks scanner can scan network up to 10,000 IP addresses per second. It's really fast socks scanner that uses SYN method of scanning. This program will help you find a socks list and save it to text file.
Http Proxy Scanner is an application that helps you find IP addresses of HTTP proxy servers on network. Proxy scanner can scan network up to 10,000 IP addresses per second. It's very fast proxy scanner that uses SYN method of scanning. This program will help you find a proxy list and save it to text file.