Extract the sections of a file or folder path. Applies to: Microsoft 365 Defender. 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. Names of case-sensitive string operators, such as has_cs and contains_cs, generally end with _cs. Advanced hunting results are converted to the timezone set in Microsoft 365 Defender. In some instances, you might want to search for specific information across multiple tables. In the table below, we reduce the left table DeviceLogonEvents to cover only three specific devices before joining it with IdentityLogonEvents by account SIDs. These vulnerability scans result in providing a huge sometimes seemingly unconquerable list for the IT department. Required Permissions# AdvancedQuery.Read.All Base Command# microsoft-atp-advanced . In addition, construct queries that adhere to the published Microsoft Defender ATP Advanced hunting performance best practices. 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. For that scenario, you can use the find operator. If you get syntax errors, try removing empty lines introduced when pasting. Are you sure you want to create this branch? You can get data from files in TXT, CSV, JSON, or other formats. 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. 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. 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. 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. Image 4: Exported outcome of ProcessCreationEvents with EventTime restriction which is started in Excel. A tag already exists with the provided branch name. Windows Defender Advanced Threat Protection (ATP) is a unified platform designed to help enterprise networks prevent, detect, investigate, and respond to advanced threats. In our first example, well use a table called ProcessCreationEvents and see what we can learn from there. Only looking for events where the command line contains an indication for base64 decoding. Watch this short video to learn some handy Kusto query language basics. // Find all machines running a given Powersehll cmdlet. 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. Sample queries for Advanced hunting in Microsoft 365 Defender. The following reference - Data Schema, lists all the tables in the schema. Case-sensitive for speedCase-sensitive searches are more specific and generally more performant. There may be scenarios when you want to keep track of how many times a specific event happened on an endpoint. Find rows that match a predicate across a set of tables. Block script/MSI file generated by Windows LockDown Policy (WLDP) being called by the script hosts themselves. The packaged app was blocked by the policy. Good understanding about virus, Ransomware For more information see the Code of Conduct FAQ It indicates the file would have been blocked if the WDAC policy was enforced. It's time to backtrack slightly and learn some basics. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Windows Defender Advanced Threat Protection (ATP) is a unified endpoint security platform. Select the columns to include, rename or drop, and insert new computed columns. Image 18: Example query that joins FileCreationEvents with ProcessCreationEvents where the result shows a full perspective on the files that got created and executed. For example, the following advanced hunting query finds recent connections to Dofoil C&C servers from your network. Advanced hunting supports the following views: When rendering charts, advanced hunting automatically identifies columns of interest and the numeric values to aggregate. The Windows Defender ATP research team proactively develops anti-tampering mechanisms for all our sensors. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Applied only when the Audit only enforcement mode is enabled. For guidance, read about working with query results. After running your query, you can see the execution time and its resource usage (Low, Medium, High). Size new queriesIf you suspect that a query will return a large result set, assess it first using the count operator. Indicates the AppLocker policy was successfully applied to the computer. To understand these concepts better, run your first query. This capability is supported beginning with Windows version 1607. Let us know if you run into any problems or share your suggestions by sending email to wdatpqueriesfeedback@microsoft.com. You can also use the case-sensitive equals operator == instead of =~. Also note that sometimes you might not have the absolute filename or might be dealing with a malicious file that constantly changes names. Sharing best practices for building any app with .NET. There will be situations where you need to quickly determine if your organization is impacted by a threat that does not yet have pre-established indicators of compromise (IOC). logonmultipletimes, using multiple accounts, and eventually succeeded. Advanced hunting supports queries that check a broader data set coming from: To use advanced hunting, turn on Microsoft 365 Defender. Think of a new global outbreak, or a new waterhole technique which could have lured some of your end users, or a new 0-day exploit. When querying for command-line arguments, don't look for an exact match on multiple unrelated arguments in a certain order. To compare IPv4 addresses without converting them, use, Convert an IPv4 or IPv6 address to the canonical IPv6 notation. Find distinct valuesIn general, use summarize to find distinct values that can be repetitive. It almost feels like that there is an operator for anything you might want to do inside Advanced Hunting. Use the parsed data to compare version age. Device security No actions needed. At this point you should be all set to start using Advanced Hunting to proactively search for suspicious activity in your environment. 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. This project welcomes contributions and suggestions. For example, to get the top 10 sender domains with the most phishing emails, use the query below: Use the pie chart view to effectively show distribution across the top domains: Pie chart that shows distribution of phishing emails across top sender domains. To get meaningful charts, construct your queries to return the specific values you want to see visualized. Monitoring blocks from policies in enforced mode When using Microsoft Endpoint Manager we can find devices with . Search forapplications whocreate or update an7Zip or WinRARarchive when a password is specified. Try running these queries and making small modifications to them. Specifies the script or .msi file would be blocked if the Enforce rules enforcement mode were enabled. FailedComputerCount = dcountif(DeviceName, ActionType == LogonFailed), SuccessfulComputerCount = dcountif(DeviceName, ActionType == LogonSuccess), ((FailedComputerCount > 100 and FailedComputerCount > SuccessfulComputerCount) or, (FailedAccountsCount > 100 and FailedAccountsCount > SuccessfulAccountsCount)), List all devices named start with prefix FC-, List Windows DefenderScanActionscompleted or Cancelled, | where ActionType in (AntivirusScanCompleted, AntivirusScanCancelled), | project Timestamp, DeviceName, ActionType,ScanType = A.ScanTypeIndex, StartedBy= A.User, | where RemoteUrl== www.advertising.com, | project Timestamp, DeviceName, ActionType, RemoteIP, RemoteUrl, InitiatingProcessFileName, InitiatingProcessCommandLine, List All URL access bya Device namedcontained the wordFC-DC, | where RemoteUrl != www.advertising.com and DeviceName contains fc-dc. or contact opencode@microsoft.com with any additional questions or comments. 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. To prevent this from happening, use the tab feature within advanced hunting instead of separate browser tabs. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Return up to the specified number of rows. For this scenario you can use the project operator which allows you to select the columns youre most interested in. You can also explore a variety of attack techniques and how they may be surfaced through Advanced hunting. For detailed information about various usage parameters, read about advanced hunting quotas and usage parameters. 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. When you master it, you will master Advanced Hunting! No three-character termsAvoid comparing or filtering using terms with three characters or fewer. DeviceProcessEvents | where ProcessCommandLine matches regex @s[aukfAUKF]s.*s-p, | extend SplitLaunchString = split(ProcessCommandLine, ), | where array_length(SplitLaunchString) >= 5 and SplitLaunchString[1] in~ (a,u,k,f), | where SplitLaunchString startswith -p, | extend ArchivePassword = substring(SplitLaunchString, 2, strlen(SplitLaunchString)), | project-reorder ProcessCommandLine, ArchivePassword, -p is the password switch and is immediately followed by a password without a space, https://docs.microsoft.com/en-us/azure/data-explorer/kusto/query/agofunction, https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/advanced-hunting-query-language, https://github.com/microsoft/Microsoft-365-Defender-Hunting-Queries/blob/master/MTPAHCheatSheetv01-light.pdf. For example, use. This query can be used to detect the following attack techniques and tactics (see MITRE ATT&CK framework) or security configuration states. Customers who run multiple queries regularly should track consumption and apply the optimization guidance in this article to minimize disruption resulting from exceeding quotas or usage parameters. Learn more about how you can evaluate and pilot Microsoft 365 Defender. Learn more about how you can evaluate and pilot Microsoft 365 Defender. High indicates that the query took more resources to run and could be improved to return results more efficiently. Once you select any additional filters Run query turns blue and you will be able to run an updated query. The FileProfile() function is an enrichment function in advanced hunting that adds the following data to files found by the query. Within the Advanced Hunting action of the Defender . The samples in this repo should include comments that explain the attack technique or anomaly being hunted. Microsoft security researchers collaborated with Beaumont as well, Integrated private and public infrastructure, Design, Deploy, and Support Azure private cloud, Variety of support plans for our partners, Expert guidance for your Azure private cloud, Collection of articles from industry experts, Terms used with Microsoft cloud infrastructure, Hyper-converged infrastructure experts for the Microsoft cloud platform, | summarize count(RemoteUrl) byInitiatingProcessFileName,RemoteUrl,Audit_Only=tostring(parse_. In addition, construct queries that adhere to the published Microsoft Defender ATP Advanced hunting performance best practices. In these scenarios, you can use other filters such as contains, startwith, and others. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, 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. High indicates that the query took more resources to run and could be improved to return results more efficiently. To get a unique identifier for a process on a specific machine, use the process ID together with the process creation time. Find out more about the Microsoft MVP Award Program. MDATP offers quite a few endpoints that you can leverage in both incident response and threat hunting. from DeviceProcessEvents. The first piped element is a time filter scoped to the previous seven days. Here are some sample queries and the resulting charts. Advanced Hunting uses simple query language but powerful query language that returns a rich set of data. 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