Note: I have updated the kql queries below, but the screenshots itself still refer to the previous (old) schema names. Such combinations are less distinct and are likely to have duplicates. Microsoft Defender for Endpoint is a market-leading platform on the market that offers vulnerability management, endpoint protection, endpoint detection and response (EDR), and mobile threat defense service. You can find the original article here. Dear IT Pros, Iwould, At the Center of intelligent security management is the concept of working smarter, not harder. The example below shows how you can utilize the extensive list of malware SHA-256 hashes provided by MalwareBazaar (abuse.ch) to check attachments on emails: There are various functions you can use to efficiently handle strings that need parsing or conversion. Like the join operator, you can also apply the shuffle hint with summarize to distribute processing load and potentially improve performance when operating on columns with high cardinality. The panel provides the following information based on the selected record: To view more information about a specific entity in your query results, such as a machine, file, user, IP address, or URL, select the entity identifier to open a detailed profile page for that entity. This repo contains sample queries for Advanced hunting on Microsoft Defender Advanced Threat Protection. Learn about string operators. instructions provided by the bot. Signing information event correlated with either a 3076 or 3077 event. List Deviceswith ScheduleTask created byVirus, | whereFolderPathendswithschtasks.exe andProcessCommandLinehas /create andAccountName!= system, List Devices withPhisingFile extension (double extension)as .pdf.exe, .docx.exe, .doc.exe, .mp3.exe, | project Timestamp,DeviceName,FileName,AccountSid,AccountName,AccountDomain, List Device blocked by Windows DefenderExploitGuard, | whereActionType =~ ExploitGuardNetworkProtectionBlocked, | summarize count(RemoteUrl) byInitiatingProcessFileName,RemoteUrl,Audit_Only=tostring(parse_json(AdditionalFields).IsAudit), List All Files Create during the lasthour, | projectFileName,FolderPath, SHA1,DeviceName, Timestamp, | where SHA1 == 4aa9deb33c936c0087fb05e312ca1f09369acd27, | whereActionTypein (FirewallOutboundConnectionBlocked, FirewallInboundConnectionBlocked, FirewallInboundConnectionToAppBlocked), | projectDeviceId,Timestamp ,InitiatingProcessFileName,InitiatingProcessParentFileName,RemoteIP,RemotePort,LocalIP,LocalPort, | summarizeMachineCount=dcount(DeviceId) byRemoteIP. To understand these concepts better, run your first query. Image 4: Exported outcome of ProcessCreationEvents with EventTime restriction which is started in Excel. Use the summarize operator to obtain a numeric count of the values you want to chart. You can use the summarize operator for that, which allows you to produce a table that aggregates the content of the input table in combination with count() that will count the number of rows or dcount() that will count the distinct values. This is particularly useful for instances where you want to hunt for occurrences where threat actors drop their payload and run it afterwards. To see a live example of these operators, run them from the Get started section in advanced hunting. Don't use * to check all columns. You can get data from files in TXT, CSV, JSON, or other formats. To improve performance, it incorporates hint.shufflekey: Process IDs (PIDs) are recycled in Windows and reused for new processes. Afterwards, the query looks for strings in command lines that are typically used to download files using PowerShell. This default behavior can leave out important information from the left table that can provide useful insight. Failed =countif(ActionType== LogonFailed). , and provides full access to raw data up to 30 days back. Want to experience Microsoft 365 Defender? Advanced hunting in Microsoft Defender for Endpoint allows customers to query data using a rich set of capabilities. Integrating the generated events with Advanced Hunting makes it much easier to have broad deployments of audit mode policies and see how the included rules would influence those systems in real world usage. Create calculated columns and append them to the result set. For details, visit You can also use the case-sensitive equals operator == instead of =~. To understand these concepts better, run your first query. More info about Internet Explorer and Microsoft Edge, evaluate and pilot Microsoft 365 Defender, Choose between guided and advanced modes to hunt in Microsoft 365 Defender, Read about required roles and permissions for advanced hunting, Read about managing access to Microsoft 365 Defender, Choose between guided and advanced hunting modes. The data model is simply made up by 10 tables in total, and all of the details on the fields of each table is available under our documentation, This table includes information related to alerts and related IOCs, properties of the devices (Name, OS platform and version, LoggedOn users, and others), The device network interfaces related information, The process image file information, command line, and others, The process and loaded module information, Which process change what key and which value, Who logged on, type of logon, permissions, and others, A variety of Windows related events, for example telemetry from Windows Defender Exploit Guard, Advanced hunting reference in Windows Defender ATP, Sample queries for Advanced hunting in Windows Defender ATP. We regularly publish new sample queries on GitHub. Using multiple browser tabs with advanced hunting might cause you to lose your unsaved queries. Sharing best practices for building any app with .NET. Access to file name is restricted by the administrator. The driver file under validation didn't meet the requirements to pass the application control policy. | extend Account=strcat(AccountDomain, ,AccountName). If you get syntax errors, try removing empty lines introduced when pasting. Based on the results of your query, youll quickly be able to see relevant information and take swift action where needed. Successful=countif(ActionType == LogonSuccess). Dont worry, there are some hints along the way. Microsoft SIEM and XDR Community provides a forum for the community members, aka, Threat Hunters, to join in and submit these contributions via GitHub Pull Requests or contribution ideas as GitHub Issues. It can be unnecessary to use it to aggregate columns that don't have repetitive values. Within the Advanced Hunting action of the Defender . You might have noticed a filter icon within the Advanced Hunting console. As we knew, youoryour InfoSec Teammayneed to runa fewqueries inyour daily security monitoringtask. Advanced hunting supports two modes, guided and advanced. Firewall & network protection No actions needed. from DeviceProcessEvents. You must be a registered user to add a comment. Image 6: Some fields may contain data in different cases for example, file names, paths, command lines, and URLs. If the left table has multiple rows with the same value for the join key, those rows will be deduplicated to leave a single random row for each unique value. Legitimate new applications and updates or potentially unwanted or malicious software could be blocked. Youll be able to merge tables, compare columns, and apply filters on top to narrow down the search results. These terms are not indexed and matching them will require more resources. Within the Recurrence step, select Advanced options and adjust the time zone and time as per your needs. Take advantage of the following functionality to write queries faster: You can use the query editor to experiment with multiple queries. Instead, use regular expressions or use multiple separate contains operators. Because of the richness of data, you will want to use filters wisely to reduce unnecessary noise into your analysis. Smaller table to your leftThe join operator matches records in the table on the left side of your join statement to records on the right. Read about required roles and permissions for . 22: This query should return a result that shows network communication to two URLs msupdater.com and twitterdocs.com, Image 23: This query should return a result that shows files downloaded through Microsoft Edge and returns the columns EventTime, ComputerName, InitiatingProcessFileName, FileName and FolderPath. Use advanced hunting to Identify Defender clients with outdated definitions. You can view query results as charts and quickly adjust filters. See, Sample queries for Advanced hunting in Windows Defender ATP. To create more durable queries around command lines, apply the following practices: The following examples show various ways to construct a query that looks for the file net.exe to stop the firewall service "MpsSvc": To incorporate long lists or large tables into your query, use the externaldata operator to ingest data from a specified URI. To get meaningful charts, construct your queries to return the specific values you want to see visualized. We regularly publish new sample queries on GitHub. Within Microsoft Flow, start with creating a new scheduled flow, select from blank. The FileProfile() function is an enrichment function in advanced hunting that adds the following data to files found by the query. KQL to the rescue ! WDAC events can be queried with using an ActionType that starts with AppControl. Merge the rows of two tables to form a new table by matching values of the specified column(s) from each table. Advanced Hunting makes use of the Azure Kusto query language, which is the same language we use for Azure Log Analytics, and provides full access to raw data up to 30 days back. Watch Optimizing KQL queries to see some of the most common ways to improve your queries. Windows Defender Advanced Threat Protection (ATP) is a unified endpoint security platform. This repository has been archived by the owner on Feb 17, 2022. Learn more about join hints. microsoft/Microsoft-365-Defender-Hunting-Queries, Microsoft Defender Advanced Threat Protection, Feature overview, tables, and common operators, Microsoft Defender ATP Advanced hunting performance best practices. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. The Get started section provides a few simple queries using commonly used operators. Feel free to comment, rate, or provide suggestions. microsoft/Microsoft-365-Defender-Hunting-Queries. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Character string in UTF-8 enclosed in single quotes (, Place the cursor on any part of a query to select that query before running it. Extract the sections of a file or folder path. | project EventTime , ComputerName , FileName , FolderPath , ProcessCommandLine , InitiatingProcessCommandLine, Make sure that the outcome only shows EventTime , ComputerName , FileName , FolderPath , ProcessCommandLine , InitiatingProcessCommandLine, Identifying network connections to known Dofoil NameCoin servers. Linux, NOTE: As of late September, the Microsoft Defender ATP product line has been renamed to Microsoft Defender for Endpoint! The query below uses the summarize operator to get the number of alerts by severity. To use advanced hunting or other Microsoft 365 Defender capabilities, you need an appropriate role in Azure Active Directory. After running a query, select Export to save the results to local file. In the example below, the parsing function extractjson() is used after filtering operators have reduced the number of records. Are you sure you want to create this branch? The Windows Defender ATP research team proactively develops anti-tampering mechanisms for all our sensors. This article was originally published by Microsoft's Core Infrastructure and Security Blog. Select Export to save the results of your query, select from blank of ProcessCreationEvents with EventTime which... To return the specific values you want to chart is used after filtering operators have reduced the of... Txt, CSV, JSON, or provide suggestions results to local file events can queried. Query below uses the summarize operator to get the number of alerts by.. The repository from the left table that can provide useful insight or other Microsoft 365 Defender capabilities, you want! 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