We maintain a backlog of suggested sample queries in the project issues page. Advanced hunting is based on the Kusto query language. A tag already exists with the provided branch name. For detailed information about various usage parameters, read about advanced hunting quotas and usage parameters. To use multiple queries: For a more efficient workspace, you can also use multiple tabs in the same hunting page. With these sample queries, you can start to experience Advanced hunting, including the types of data that it covers and the query language it supports. Required Permissions# AdvancedQuery.Read.All Base Command# microsoft-atp-advanced . This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Find possible clear text passwords in Windows registry. If a query returns no results, try expanding the time range. Names of case-sensitive string operators, such as has_cs and contains_cs, generally end with _cs. SuccessfulAccountsCount=dcountif(Account,ActionType== LogonSuccess). Choosing the minus icon will exclude a certain attribute from the query while the addition icon will include it. If you're among those administrators that use Microsoft Defender Advanced Threat Protection, here's a handy tip how to find out who's logging on with local administrators' rights. The query summarizes by both InitiatingProcessId and InitiatingProcessCreationTime so that it looks at a single process, without mixing multiple processes with the same process ID. Afterwards, the query looks for strings in command lines that are typically used to download files using PowerShell. We have devised heuristic alerts for possible manipulation of our optics, designing these alerts so that they are triggered in the cloud before the bypass can suppress them. The sample query below allows you to quickly determine if theres been any network connections to known Dofoil NameCoin servers within the last 30 days from endpoints in your network. from DeviceProcessEvents. These rules run automatically to check for and then respond to suspected breach activity, misconfigured machines, and other findings. This query identifies crashing processes based on parameters passed to werfault.exe and attempts to find the associated process launch from DeviceProcessEvents. In November 2018, we added functionality in Microsoft Defender for Endpoint that makes it easy to view WDAC events centrally from all connected systems. I highly recommend everyone to check these queries regularly. You signed in with another tab or window. When you submit a pull request, a CLA-bot will automatically determine whether you need Select the columns to include, rename or drop, and insert new computed columns. In our first example, well use a table called ProcessCreationEvents and see what we can learn from there. Advanced hunting supports the following views: When rendering charts, advanced hunting automatically identifies columns of interest and the numeric values to aggregate. // Find all machines running a given Powersehll cmdlet. There are more complex obfuscation techniques that require other approaches, but these tweaks can help address common ones. https://cla.microsoft.com. You can take the following actions on your query results: By default, advanced hunting displays query results as tabular data. Good understanding about virus, Ransomware Advanced hunting is a query-based threat hunting tool that lets you explore up to 30 days of raw data. Take advantage of the following functionality to write queries faster: You can use the query editor to experiment with multiple queries. You can get data from files in TXT, CSV, JSON, or other formats. The samples in this repo should include comments that explain the attack technique or anomaly being hunted. microsoft/Microsoft-365-Defender-Hunting-Queries. Since applications still run in audit mode, it's an ideal way to see the impact and correctness of the rules included in the policy. Use Git or checkout with SVN using the web URL. This query can be used to detect the following attack techniques and tactics (see MITRE ATT&CK framework) or security configuration states. Applies to: Microsoft 365 Defender. Mac computers will now have the option to use Microsoft Defender Advanced Threat Protection's endpoint and detection response. Filter tables not expressionsDon't filter on a calculated column if you can filter on a table column. For details, visit AlertEvents To get meaningful charts, construct your queries to return the specific values you want to see visualized. This project has adopted the Microsoft Open Source Code of Conduct. Return up to the specified number of rows. Case-sensitive for speedCase-sensitive searches are more specific and generally more performant. Some information relates to prereleased product which may be substantially modified before it's commercially released. The following reference - Data Schema, lists all the tables in the schema. A tag already exists with the provided branch name. Limiting the time range helps ensure that queries perform well, return manageable results, and don't time out. For more information on advanced hunting in Microsoft Defender for Cloud Apps data, see the video. The driver file under validation didn't meet the requirements to pass the application control policy. Advanced Hunting allows you to save your queries and share them within your tenant with your peers. Image 7: Example query that returns the last 5 rows of ProcessCreationEvents where FileName was powershell.exe. It has become very common for threat actors to do a Base64 decoding on their malicious payload to hide their traps. In addition, construct queries that adhere to the published Microsoft Defender ATP Advanced hunting performance best practices. For example, the shuffle hint helps improve query performance when joining tables using a key with high cardinalitya key with many unique valuessuch as the AccountObjectId in the query below: The broadcast hint helps when the left table is small (up to 100,000 records) and the right table is extremely large. One 3089 event is generated for each signature of a file. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. For example, use. No three-character termsAvoid comparing or filtering using terms with three characters or fewer. You can move your advanced hunting workflows from Microsoft Defender for Endpoint to Microsoft 365 Defender by following the steps in Migrate advanced hunting queries from Microsoft Defender for Endpoint. We are using =~ making sure it is case-insensitive. Alerts by severity Use the inner-join flavorThe default join flavor or the innerunique-join deduplicates rows in the left table by the join key before returning a row for each match to the right table. Lets break down the query to better understand how and why it is built in this way. project returns specific columns, and top limits the number of results. It is a true game-changer in the security services industry and one that provides visibility in a uniform and centralized reporting platform. We are continually building up documentation about Advanced hunting and its data schema. For that scenario, you can use the join operator. Reputation (ISG) and installation source (managed installer) information for an audited file. Turn on Microsoft 365 Defender to hunt for threats using more data sources. | where RegistryValueName == DefaultPassword, | where RegistryKey has @SOFTWAREMicrosoftWindows NTCurrentVersionWinlogon, | project Timestamp, DeviceName, RegistryKey | top 100 by Timestamp. To prevent this from happening, use the tab feature within advanced hunting instead of separate browser tabs. More info about Internet Explorer and Microsoft Edge, evaluate and pilot Microsoft 365 Defender, Migrate advanced hunting queries from Microsoft Defender for Endpoint, Hunt across devices, emails, apps, and identities. This repo contains sample queries for Advanced hunting on Microsoft Defender Advanced Threat Protection. Deconstruct a version number with up to four sections and up to eight characters per section. For detailed information about various usage parameters, read about advanced hunting quotas and usage parameters. Specifies the .exe or .dll file would be blocked if the Enforce rules enforcement mode were enabled. You can also use the case-sensitive equals operator == instead of =~. You can also explore a variety of attack techniques and how they may be surfaced through Advanced hunting. Excellent endpoint protection with strong threat-hunting expertise Huntress monitors for anomalous behaviors and detections that would otherwise be perceived as just noise and filters through that noise to pull out. The Get started section provides a few simple queries using commonly used operators. The first piped element is a time filter scoped to the previous seven days. Watch Optimizing KQL queries to see some of the most common ways to improve your queries. Failed =countif(ActionType== LogonFailed). For that scenario, you can use the find operator. PowerShell execution events that could involve downloads. Advanced hunting supports Kusto data types, including the following common types: To learn more about these data types, read about Kusto scalar data types. It can be unnecessary to use it to aggregate columns that don't have repetitive values. Image 10: Example query that returns the last 5 rows of ProcessCreationEvents where FileName was powershell.exe or cmd.exe, note this time we are using == which makes it case sensitive and where the outcome is filtered to show you EventTime, ComputerName and ProcessCommandLine. Each table name links to a page describing the column names for that table and which service it applies to. The script or .msi file can't run. Parse, don't extractWhenever possible, use the parse operator or a parsing function like parse_json(). Assessing the impact of deploying policies in audit mode Sample queries for Advanced hunting in Microsoft 365 Defender. Image 18: Example query that joins FileCreationEvents with ProcessCreationEvents where the result shows a full perspective on the files that got created and executed. FailedAccountsCount = dcountif(Account, ActionType == LogonFailed). Applied only when the Audit only enforcement mode is enabled. Create calculated columns and append them to the result set. Simply follow the For more information see the Code of Conduct FAQ Depending on its size, each tenant has access to a set amount of CPU resources allocated for running advanced hunting queries. Some tables in this article might not be available in Microsoft Defender for Endpoint. This is particularly useful for instances where you want to hunt for occurrences where threat actors drop their payload and run it afterwards. Specifics on what is required for Hunting queries is in the. I highly recommend everyone to check these queries regularly. Use limit or its synonym take to avoid large result sets. If you're familiar with Sysinternals Sysmon your will recognize the a lot of the data which you can query. You can view query results as charts and quickly adjust filters. Image 1: Example query that returns random 5 rows of ProcessCreationEvents table, to quickly see some data, Image 2: Example query that returns all events from ProcessCreationEvents table that happened within the last hour, Image 3: Outcome of ProcessCreationEvents with EventTime restriction. Apply these tips to optimize queries that use this operator. Read more Anonymous User Cyber Security Senior Analyst at a security firm If I try to wrap abuse_domain in tostring, it's "Scalar value expected". Hello Blog Readers, I have summarized the Linux Configuration and Operation commands in this cheat sheet for your convenient use. High indicates that the query took more resources to run and could be improved to return results more efficiently. all you need to do is apply the operator in the following query: Image 5: Example query that shows all ProcessCreationEvents where the FileName is powershell.exe. Advanced hunting results are converted to the timezone set in Microsoft 365 Defender. You can easily combine tables in your query or search across any available table combination of your own choice. 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. Such combinations are less distinct and are likely to have duplicates. Indicates a policy has been successfully loaded. The packaged app was blocked by the policy. Also, your access to endpoint data is determined by role-based access control (RBAC) settings in Microsoft Defender for Endpoint. Advanced hunting data can be categorized into two distinct types, each consolidated differently. Open Windows Security Protection areas Virus & threat protection No actions needed. Image 24:You can choose Save or Save As to select a folder location, Image 25: Choose if you want the query to be shared across your organization or only available to you. With these sample queries, you can start to experience Advanced hunting, including the types of data that it covers and the query language it supports. Learn more about how you can evaluate and pilot Microsoft 365 Defender. Extract the sections of a file or folder path. In either case, the Advanced hunting queries report the blocks for further investigation. 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. 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