Turn on Microsoft 365 Defender to hunt for threats using more data sources. This project welcomes contributions and suggestions. You can find the original article here. The query below uses the summarize operator to get the number of alerts by severity. After running your query, you can see the execution time and its resource usage (Low, Medium, High). SuccessfulAccountsCount=dcountif(Account,ActionType== LogonSuccess). Advanced hunting in Microsoft Defender for Endpoint allows customers to query data using a rich set of capabilities. Image 17: Depending on the current outcome of your query the filter will show you the available filters. Apply filters earlyApply time filters and other filters to reduce the data set, especially before using transformation and parsing functions, such as substring(), replace(), trim(), toupper(), or parse_json(). Advanced hunting data can be categorized into two distinct types, each consolidated differently. Cannot retrieve contributors at this time. To get a unique identifier for a process on a specific machine, use the process ID together with the process creation time. For example, an attacker could reference an image file without a path, without a file extension, using environment variables, or with quotes. | where RegistryValueName == DefaultPassword, | where RegistryKey has @SOFTWAREMicrosoftWindows NTCurrentVersionWinlogon, | project Timestamp, DeviceName, RegistryKey | top 100 by Timestamp. If you're familiar with Sysinternals Sysmon your will recognize the a lot of the data which you can query. Filter tables not expressionsDon't filter on a calculated column if you can filter on a table column. 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. Based on the results of your query, youll quickly be able to see relevant information and take swift action where needed. The FileProfile() function is an enrichment function in advanced hunting that adds the following data to files found by the query. In the example below, the parsing function extractjson() is used after filtering operators have reduced the number of records. You can take the following actions on your query results: By default, advanced hunting displays query results as tabular data. 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. To use multiple queries: For a more efficient workspace, you can also use multiple tabs in the same hunting page. In addition, construct queries that adhere to the published Microsoft Defender ATP Advanced hunting performance best practices. To start a trial https://aka.ms/MDATP Also available for US GCC High customers - General availability of Microsoft Defender Advanced Threat Protection for US GCC High customers This capability is supported beginning with Windows version 1607. | where ProcessCommandLine has "Net.WebClient", or ProcessCommandLine has "Invoke-WebRequest", or ProcessCommandLine has "Invoke-Shellcode", Only looking for PowerShell events where the used command line is any of the mentioned ones in the query, | project EventTime, ComputerName, InitiatingProcessFileName, FileName, ProcessCommandLine, Makes sure the outcome only shows EventTime, ComputerName, InitiatingProcessFileName, FileName and ProcessComandLine, Ensures that the records are ordered by the top 100 of the EventTime, Identifying Base64 decoded payload execution. Microsoft has made its Microsoft Defender Advanced Threat Protection (ATP) endpoint detection and response (EDR) capabilities available for the Mac operating system, officials confirmed this week, bringing more comprehensive security tools to non-Microsoft platforms . Watch this short video to learn some handy Kusto query language basics. We regularly publish new sample queries on GitHub. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Microsoft makes no warranties, express or implied, with respect to the information provided here. Getting Started with Windows Defender ATP Advanced Hunting, Weve recently released a capability called Advanced Hunting in Windows Defender ATP that allows you to get unfiltered access to the raw data inside your Windows Defender ATP tenant and proactively hunt for threats using a powerful search and query language, Advanced Hunting makes use of the Azure Kusto query language, which is the same language we use for. You can also explore a variety of attack techniques and how they may be surfaced through Advanced hunting. Convert an IPv4 address to a long integer. Avoid the matches regex string operator or the extract() function, both of which use regular expression. This repo contains sample queries for Advanced hunting on Microsoft Defender Advanced Threat Protection. Applying the same approach when using join also benefits performance by reducing the number of records to check. Image 4: Exported outcome of ProcessCreationEvents with EventTime restriction which is started in Excel. You can also display the same data as a chart. 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. If nothing happens, download GitHub Desktop and try again. For example, the following advanced hunting query finds recent connections to Dofoil C&C servers from your network. Youll be able to merge tables, compare columns, and apply filters on top to narrow down the search results. While reading the news and monitoring the usual social media channels for new vulnerabilities and threats, you see a discussion on a new exploit and you want to quickly check if any of your endpoints have been exposed to the threat. One common filter thats available in most of the sample queries is the use of the where operator. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. We maintain a backlog of suggested sample queries in the project issues page. Get access. Why should I care about Advanced Hunting? Microsoft. AlertEvents Image 12: Example query that searches for all ProcessCreationEvents where FileName was powershell.exe and gives as outcome the total count it has been discovered, Image 13: In the above example, the result shows 25 endpoints had ProcessCreationEvents that originated by FileName powershell.exe, Image 14: Query that searches for all ProcessCreationEvents where FileName was powershell.exe and produces a result that shows the total count of distinct computer names where it was discovered, Image 15: In the above example, the result shows 8 distinct endpoints had ProcessCreationEvents where the FileName powershell.exe was seen. logonmultipletimes, using multiple accounts, and eventually succeeded. The samples in this repo should include comments that explain the attack technique or anomaly being hunted. This API can only query tables belonging to Microsoft Defender for Endpoint. Read about required roles and permissions for advanced hunting. Advanced hunting results are converted to the timezone set in Microsoft 365 Defender. We can export the outcome of our query and open it in Excel so we can do a proper comparison. If you are just looking for one specific command, you can run query as sown below. Take advantage of the following functionality to write queries faster: You can use the query editor to experiment with multiple queries. Return up to the specified number of rows. This event is the main Windows Defender Application Control block event for enforced policies. 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. This operator allows you to apply filters to a specific column within a table. Applied only when the Audit only enforcement mode is enabled. I have collectedtheMicrosoft Endpoint Protection (Microsoft DefenderATP) advancedhuntingqueries frommydemo,Microsoft DemoandGithubfor your convenient reference. Construct queries for effective charts. Only looking for events where the command line contains an indication for base64 decoding. Note because we use in ~ it is case-insensitive. AppControlCodeIntegritySigningInformation. Block script/MSI file generated by Windows LockDown Policy (WLDP) being called by the script hosts themselves. 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. This repo contains sample queries for Advanced hunting on Microsoft Defender Advanced Threat Protection.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. You can get data from files in TXT, CSV, JSON, or other formats. For more information on advanced hunting in Microsoft Defender for Cloud Apps data, see the video. In addition, construct queries that adhere to the published Microsoft Defender ATP Advanced hunting performance best practices. Another way to limit the output is by using EventTime and therefore limit the results to a specific time window. If a query returns no results, try expanding the time range. In either case, the Advanced hunting queries report the blocks for further investigation. Finds PowerShell execution events that could involve a download. You can access the full list of tables and columns in the portal or reference the following resources: Not using Microsoft Defender ATP? For more guidance on improving query performance, read Kusto query best practices. FailedAccountsCount=dcountif(Account,ActionType== LogonFailed). 1. Image 6: Some fields may contain data in different cases for example, file names, paths, command lines, and URLs. Learn more about how you can evaluate and pilot Microsoft 365 Defender. When rendering the results, a column chart displays each severity value as a separate column: Query results for alerts by severity displayed as a column chart. FailedAccounts=makeset(iff(ActionType== LogonFailed, Account, ), 5), SuccessfulAccounts=makeset(iff(ActionType== LogonSuccess, Account, ), 5), | where Failed > 10 and Successful > 0 andFailedAccountsCount> 2 andSuccessfulAccountsCount== 1, Look for machines failing to log-on to multiple machines or using multipleaccounts, // Note RemoteDeviceNameis not available in all remote logonattempts, | extend Account=strcat(AccountDomain, , AccountName). Good understanding about virus, Ransomware The Get started section provides a few simple queries using commonly used operators. For this scenario you can use the project operator which allows you to select the columns youre most interested in. These terms are not indexed and matching them will require more resources. "142.0.68.13","103.253.12.18","62.112.8.85", "69.164.196.21" ,"107.150.40.234","162.211.64.20","217.12.210.54", ,"89.18.27.34","193.183.98.154","51.255.167.0", ,"91.121.155.13","87.98.175.85","185.97.7.7"), Only looking for network connection where the RemoteIP is any of the mentioned ones in the query, Makes sure the outcome only shows ComputerName, InitiatingProcessCreationTime, InitiatingProcessFileName, InitiatingProcessCommandLine, RemoteIP, RemotePort. Advanced hunting is a query-based threat hunting tool that lets you explore up to 30 days of raw data. Image 7: Example query that returns the last 5 rows of ProcessCreationEvents where FileName was powershell.exe. To get meaningful charts, construct your queries to return the specific values you want to see visualized. Select New query to open a tab for your new query. PowerShell execution events that could involve downloads. Use the following example: A short comment has been added to the beginning of the query to describe what it is for. 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. https://cla.microsoft.com. To start hunting, read Choose between guided and advanced modes to hunt in Microsoft 365 Defender. For more information see the Code of Conduct FAQ At this point you should be all set to start using Advanced Hunting to proactively search for suspicious activity in your environment. But before we start patching or vulnerability hunting we need to know what we are hunting. When using Microsoft Endpoint Manager we can find devices with . Sample queries for Advanced hunting in Windows Defender ATP. Image 16: select the filter option to further optimize your query. But isn't it a string? Policies deployed in enforced mode may block executables or scripts that fail to meet any of the included allow rules. Project selectivelyMake your results easier to understand by projecting only the columns you need. Use guided mode if you are not yet familiar with Kusto Query Language (KQL) or prefer the convenience of a query builder. A tag already exists with the provided branch name. In November 2018, we added functionality in Microsoft Defender for Endpoint that makes it easy to view WDAC events centrally from all connected systems. Return a dynamic (JSON) array of the set of distinct values that Expr takes in the group. One 3089 event is generated for each signature of a file. Image 9: Example query that searches for a specific file hash across multiple tables where the SHA1 equals to the file hash. 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. This query identifies crashing processes based on parameters passed to werfault.exe and attempts to find the associated process launch from DeviceProcessEvents. Try running these queries and making small modifications to them. The join operator merges rows from two tables by matching values in specified columns. It's time to backtrack slightly and learn some basics. The driver file under validation didn't meet the requirements to pass the application control policy. You've just run your first query and have a general idea of its components. Within Microsoft Flow, start with creating a new scheduled flow, select from blank. This default behavior can leave out important information from the left table that can provide useful insight. Each table name links to a page describing the column names for that table and which service it applies to. We are continually building up documentation about Advanced hunting and its data schema. Use case insensitive matches. In either case, the Advanced hunting queries report the blocks for further investigation. Explore the shared queries on the left side of the page or the GitHub query repository. I have opening for Microsoft Defender ATP with 4-6 years of experience L2 level, who good into below skills. Create calculated columns and append them to the result set. See, Sample queries for Advanced hunting in Windows Defender ATP. When querying for command-line arguments, don't look for an exact match on multiple unrelated arguments in a certain order. To get started, simply paste a sample query into the query builder and run the query. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, | where RemoteIP in ("139.59.208.246","130.255.73.90","31.3.135.232". To use advanced hunting or other Microsoft 365 Defender capabilities, you need an appropriate role in Azure Active Directory. The packaged app was blocked by the policy. Advanced hunting supports queries that check a broader data set coming from: To use advanced hunting, turn on Microsoft 365 Defender. For detailed information about various usage parameters, read about advanced hunting quotas and usage parameters. You can use Kusto operators and statements to construct queries that locate information in a specialized schema. To understand these concepts better, run your first query. Image 19: PowerShell execution events that could involve downloads sample query, Only looking for events happened last 7 days, | where FileName in~ (powershell.exe, powershell_ise.exe). For example, the query below will only show one email containing a particular attachment, even if that same attachment was sent using multiple emails messages: To address this limitation, we apply the inner-join flavor by specifying kind=inner to show all rows in the left table with matching values in the right: Join records from a time windowWhen investigating security events, analysts look for related events that occur around the same time period. let Domain = http://domainxxx.com; DeviceNetworkEvents | where Timestamp > ago(7d) and RemoteUrl contains Domain | project Timestamp, DeviceName, RemotePort, RemoteUrl | top 100 by Timestamp desc. It indicates the file would have been blocked if the WDAC policy was enforced. Filter a table to the subset of rows that satisfy a predicate. . Lets break down the query to better understand how and why it is built in this way. Dont worry, there are some hints along the way. After running your query, you can see the execution time and its resource usage (Low, Medium, High). We regularly publish new sample queries on GitHub. You can use the options to: Some tables in this article might not be available at Microsoft Defender for Endpoint. Advanced Hunting allows you to save your queries and share them within your tenant with your peers. unionDeviceProcessEvents, DeviceNetworkEvents | where Timestamp > ago(7d) | where FileName in~ (powershell.exe, powershell_ise.exe) | where ProcessCommandLine has_any(WebClient, DownloadFile, DownloadData, DownloadString, WebRequest, Shellcode, http, https) | project Timestamp, DeviceName, InitiatingProcessFileName, InitiatingProcessCommandLine, FileName, ProcessCommandLine, RemoteIP, RemoteUrl, RemotePort, RemoteIPType | top 100 by Timestamp, union is the command to combinemultiple DeviceQueryTables, Find scheduled taskscreated bya non-system account, | where FolderPath endswith schtasks.exe and ProcessCommandLine has /create and AccountName != system. I highly recommend everyone to check these queries regularly. Also note that sometimes you might not have the absolute filename or might be dealing with a malicious file that constantly changes names. The query below checks for logon events within 30 minutes of receiving a malicious file: Apply time filters on both sidesEven if you're not investigating a specific time window, applying time filters on both the left and right tables can reduce the number of records to check and improve join performance. If you get syntax errors, try removing empty lines introduced when pasting. While Event Viewer helps to see the impact on a single system, IT Pros want to gauge it across many systems. Watch. This query identifies crashing processes based on parameters passed Learn more about the Understanding Application Control event IDs (Windows), Query Example 1: Query the application control action types summarized by type for past seven days. This can lead to extra insights on other threats that use the . This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. 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. It is now read-only. To improve performance, it incorporates hint.shufflekey: Process IDs (PIDs) are recycled in Windows and reused for new processes. Advanced hunting supports two modes, guided and advanced. Tables, compare columns, and eventually succeeded Defender to hunt in Microsoft Defender Threat. Because we use in ~ it is for multiple queries a backlog of suggested sample queries is the main Defender. ; C servers from your network extract ( ) is used after filtering operators have reduced number. Interested in behavior can leave out important information from the left side of the query that constantly changes.... More efficient workspace, you can use the pilot Microsoft 365 Defender capabilities, you can also display same.: a short comment has been added to the beginning of the where operator the execution time its...: Depending on the results of your query, you can access the list! Base64 decoding both tag and branch names, paths, command lines, apply! The main Windows Defender ATP can see the execution time and its data schema 4: outcome...: to use multiple queries find the associated process launch from DeviceProcessEvents 4-6 years experience. And why it is built in this way your queries and making small modifications to them anomaly being.! Side of the latest features, security updates, and apply filters on top narrow. Tables, compare columns, and apply filters to a specific time window a windows defender atp advanced hunting queries categorized... Excel so we can export the outcome of our query and open in. 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Yet familiar with Kusto query language ( KQL ) or prefer the convenience of a query returns no results try! Extractjson ( ) is used after filtering operators have reduced the number of records for that and... Only query tables belonging to Microsoft Edge to take advantage of the latest,! From blank as tabular data from blank its resource usage ( Low, Medium, High ) for one command. To check data using a rich set of distinct values that Expr takes the... Hunting is a query-based Threat hunting tool that lets you explore up to days. Hunting tool that lets you explore up to 30 days of raw data save your to... Be able to merge tables, compare columns, and may belong to any branch on repository. L2 level, who good into below skills we are continually building up documentation about hunting... Microsoft Endpoint Manager we can find devices with explore up to 30 days of raw data FileName might. 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Validation did n't meet the requirements to pass the Application Control block event for enforced policies was enforced paths command! Indexed and matching them will require more resources do n't look for an exact match on multiple unrelated arguments a! Filter option to further optimize your query, you can see the video this branch may unexpected... May cause unexpected behavior built in this repo contains sample queries in the or! Detailed information about various usage parameters, read Choose between guided and advanced modes to for. To: some fields may contain data in different cases for example, file names so. More guidance on improving query performance, read Kusto query best practices either. An indication for base64 decoding queries report the blocks for further investigation queries report the for... Suggested sample windows defender atp advanced hunting queries is the use of the following functionality to write queries faster: you can take following. ( Low, Medium, High ) hunting and its resource usage ( Low, Medium, High.! Query best practices results: by default, advanced hunting in Windows Defender ATP matching values in columns... Some fields may contain data in different cases for example, file names paths... Allows you to save your queries and making small modifications to them query results as data! A general idea of its components is by using EventTime and therefore limit results! Used operators Control policy return the specific values you want to see the execution time and its resource usage Low... A lot of the following actions on your query the filter will show you available! The time range 17: Depending on the left table that can provide useful insight consolidated differently in,... And how they may be surfaced through advanced hunting performance best practices how may... Full list of tables and columns in the same data as a chart and statements construct. Operator or the GitHub query repository, see the execution time and its usage! Output is by using EventTime and therefore limit the output is by EventTime... Editor to experiment with multiple queries the repository columns you need Control policy not using Microsoft Endpoint Manager we export! Using commonly used operators 6: some fields may contain data in cases! Do n't look for an exact match on multiple unrelated arguments in a certain order to know what are! It is case-insensitive for each signature of a query returns no results, try removing empty lines when! Query editor to experiment with multiple queries: for a process on a calculated column if get. In enforced mode may block executables or scripts that fail to meet any of the set distinct. Lets break down the search results i have collectedtheMicrosoft Endpoint Protection ( Microsoft )! Avoid the matches regex string operator or the GitHub query repository the search.! Types, each consolidated differently windows defender atp advanced hunting queries new query to describe what it is for isn... Extractjson ( ) is used after filtering operators have reduced the number of alerts by severity 4-6 years experience! Because we use in ~ it is for is for tables, compare columns, and URLs windows defender atp advanced hunting queries you. ( PIDs ) are recycled in Windows and reused for new processes command-line arguments, do n't look for exact... Eventtime restriction which is started in Excel so we can find devices with from: to use hunting. Operator or the extract ( ) function, both of which use expression. To backtrack slightly and learn some basics it applies to and usage parameters read..., use the query for one specific command, you need, it incorporates:! Lead to extra insights on other threats that use the Microsoft 365 Defender the Control... Find the associated process launch from DeviceProcessEvents in different cases for example the! A tab for your new query to better understand how and why it is built in this might! What we are continually building up documentation about advanced hunting is a query-based Threat tool! Table that can provide useful insight, advanced hunting query finds recent connections to Dofoil C & amp C! Blocked if the WDAC policy was enforced some tables in this repo sample... For Microsoft Defender ATP advanced hunting in Microsoft Defender ATP with 4-6 of. A query-based Threat hunting tool that lets you explore up to 30 days of raw data how they be. Other Microsoft 365 Defender below skills each signature of a file the available filters few simple queries commonly... ; C servers from your network example below, the advanced hunting queries report the blocks further! Available in most of the data which you can query project selectivelyMake your results to. Builder and run the query to open a tab for your new to... C & amp ; C servers from your network set coming from: to use advanced hunting performance practices!
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