Download __FULL__ Investigation Package Defender

The device details section provides information such as the domain, OS, and health state of the device. If there's an investigation package available on the device, you'll see a link that allows you to download the package.

The Incidents and alerts tab provides a list of incidents and alerts that are associated with the device. This list is a filtered version of the Alerts queue, and shows a short description of the incident, alert, severity (high, medium, low, informational), status in the queue (new, in progress, resolved), classification (not set, false alert, true alert), investigation state, category of alert, who is addressing the alert, and last activity. You can also filter the alerts.

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You can start a new general purpose automated investigation on the device if needed. While an investigation is running, any other alert generated from the device will be added to an ongoing Automated investigation until that investigation is completed. In addition, if the same threat is seen on other devices, those devices are added to the investigation.

Live response is designed to enhance investigations by enabling you to collect forensic data, run scripts, send suspicious entities for analysis, remediate threats, and proactively hunt for emerging threats.

As part of the investigation or response process, you can collect an investigation package from a device. By collecting the investigation package, you can identify the current state of the device and further understand the tools and techniques used by the attacker.

NOTE: If the registry key is not found, the file will contain the following message: "ERROR: The system was unable to find the specified registry key or value."Installed programsThis .CSV file contains the list of installed programs that can help identify what is currently installed on the device. For more information, see Win32_Product class.Network connectionsThis folder contains a set of data points related to the connectivity information that can help in identifying connectivity to suspicious URLs, attacker's command and control (C&C) infrastructure, any lateral movement, or remote connections. ActiveNetConnections.txt: Displays protocol statistics and current TCP/IP network connections. Provides the ability to look for suspicious connectivity made by a process.Arp.txt: Displays the current address resolution protocol (ARP) cache tables for all interfaces. ARP cache can reveal other hosts on a network that have been compromised or suspicious systems on the network that might have been used to run an internal attack.DnsCache.txt: Displays the contents of the DNS client resolver cache, which includes both entries preloaded from the local Hosts file and any recently obtained resource records for name queries resolved by the computer. This can help in identifying suspicious connections.IpConfig.txt: Displays the full TCP/IP configuration for all adapters. Adapters can represent physical interfaces, such as installed network adapters, or logical interfaces, such as dial-up connections.FirewallExecutionLog.txt and pfirewall.logNOTE: The pfirewall.log file must exist in %windir%\system32\logfiles\firewall\pfirewall.log, so it will be included in the investigation package. For more information on creating the firewall log file, see Configure the Windows Defender Firewall with Advanced Security LogPrefetch filesWindows Prefetch files are designed to speed up the application startup process. It can be used to track all the files recently used in the system and find traces for applications that might have been deleted but can still be found in the prefetch file list. Prefetch folder: Contains a copy of the prefetch files from %SystemRoot%\Prefetch. NOTE: It is suggested to download a prefetch file viewer to view the prefetch files.PrefetchFilesList.txt: Contains the list of all the copied files that can be used to track if there were any copy failures to the prefetch folder.ProcessesContains a .CSV file listing the running processes and provides the ability to identify current processes running on the device. This can be useful when identifying a suspicious process and its state.Scheduled tasksContains a .CSV file listing the scheduled tasks, which can be used to identify routines performed automatically on a chosen device to look for suspicious code that was set to run automatically.Security event logContains the security event log, which contains records of login or logout activity, or other security-related events specified by the system's audit policy. NOTE: Open the event log file using Event viewer.ServicesContains a .CSV file that lists services and their states.Windows Server Message Block (SMB) sessionsLists shared access to files, printers, and serial ports and miscellaneous communications between nodes on a network. This can help identify data exfiltration or lateral movement. Contains files for SMBInboundSessions and SMBOutboundSession. NOTE: If there are no sessions (inbound or outbound), you'll get a text file that tells you that there are no SMB sessions found.System InformationContains a SystemInformation.txt file that lists system information such as OS version and network cards.Temp DirectoriesContains a set of text files that lists the files located in %Temp% for every user in the system. This can help to track suspicious files that an attacker may have dropped on the system. NOTE: If the file contains the following message: "The system cannot find the path specified", it means that there is no temp directory for this user, and might be because the user didn't log in to the system.Users and GroupsProvides a list of files that each represent a group and its members.WdSupportLogsProvides the MpCmdRunLog.txt and MPSupportFiles.cab NOTE: This folder will only be created on Windows 10, version 1709 or later with February 2020 update rollup or more recent installed: Win10 1709 (RS3) Build 16299.1717: KB4537816Win10 1803 (RS4) Build 17134.1345: KB4537795Win10 1809 (RS5) Build 17763.1075: KB4537818Win10 1903/1909 (19h1/19h2) Builds 18362.693 and 18363.693: KB4535996 CollectionSummaryReport.xlsThis file is a summary of the investigation package collection, it contains the list of data points, the command used to extract the data, the execution status, and the error code if there is failure. You can use this report to track if the package includes all the expected data and identify if there were any errors.The collection packages for macOS and Linux devices contain the following:

When triggering a scan using Defender for Endpoint response action, Microsoft Defender antivirus 'ScanAvgCPULoadFactor' value still applies and limits the CPU impact of the scan.If ScanAvgCPULoadFactor is not configured, the default value is a limit of 50% maximum CPU load during a scan.For more information, see configure-advanced-scan-types-microsoft-defender-antivirus.

5. The last thing is to do the same for all the member servers. There is a separate onboard packages for workstations and member servers, but at the end of the day. It is just installing the other onboard package. All the steps are the same.

The first thing is to keep it simple, which is by using the automated investigation response (AIR) capabilities of Microsoft Defender for Endpoint. Automated investigation response uses various inspection algorithms to discover malicious activities on a device, and it does automated remediation. The capabilities of AIR significantly reduce alert volume, allowing security operations to focus more on the other high-value initiatives.

Once the automated investigation response has been finished. It will display an investigation graph with all the necessary information such as which, file, process or service has been remediated. In this case, there was one process that just got remediated. I can really recommend organizations start using this more, because it automates the common tasks.

There is an investigation package that we can collect from an affected device to get a better understanding of the current state of the device. This includes which (persistence) techniques may have been used to remain persistent.

After we have collected our investigation package. It will return a ZIP file, which we can extract. This includes different information about what processes were running, scheduled tasks, programs installed on a machine, services that are running, and so on.

Live Response is a feature in Defender for Endpoint that provides security analysts a remote shell connection to access a device. This allows a security analyst to perform in-depth investigation on an affected device.

First, we kicked off with explaining how we could roll out Defender for Endpoint via GPO. After we have done that, we explained in short what automated investigation and response is. Then we went on to collecting an investigation package and hunt in the data that we just collected from the package. Last, but not least. We showed a few examples on using the live response session to do in-depth investigation on a device.

This playbook simplifies retrieving investigation packages to Cortex XSOAR from supported machines (See -us/microsoft-365/security/defender-endpoint/collect-investigation-package?view=o365-worldwide).

The playbook receives information about the target devices (host name, IP, and device ID), validates the devices exist, and retrieves the collection package from those machines into the Cortex XSOAR console.

Note:

This action may take time, the average package size is around ~15 MB.

MDATP offers capabilities for large-scale evidence collection, complemented by analytic tools that significantly speed up triage, detection and impact assessment. These tools and capabilities are leveraged to efficiently identify critical hosts and threat indicators associated with the incident, hunt for additional hosts with those same threat indicators, inform incident commanders as they designate hosts requiring traditional forensic investigations for more thorough analysis and facilitate further threat hunting as the response continues and new threat indicators are identified. 2351a5e196