Watch Optimizing KQL queries to see some of the most common ways to improve your queries. Image 18: Example query that joins FileCreationEvents with ProcessCreationEvents where the result shows a full perspective on the files that got created and executed. Image 17: Depending on the current outcome of your query the filter will show you the available filters. 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 is a small part of the full query ("Map external devices") on our hunting GitHub repository (authored by Microsoft Senior Engineer . Advanced hunting supports two modes, guided and advanced. Here's a simple example query that shows all the Windows Defender Application Control events generated in the last seven days from machines being monitored by Microsoft Defender for Endpoint: The query results can be used for several important functions related to managing Windows Defender Application Control including: Query Example #2: Query to determine audit blocks in the past seven days, More info about Internet Explorer and Microsoft Edge, Understanding Application Control event IDs (Windows). These contributions can be just based on your idea of the value to enterprise your contribution provides or can be from the GitHub open issues list or even enhancements to existing contributions. 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. As you can see in the following image, all the rows that I mentioned earlier are displayed. This event is the main Windows Defender Application Control block event for audit mode policies. This default behavior can leave out important information from the left table that can provide useful insight. Advanced hunting is based on the Kusto query language. For that scenario, you can use the find operator. You will only need to do this once across all repositories using our CLA. Image 16: select the filter option to further optimize your query. 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. While a single email can be part of multiple events, the example below is not an efficient use of summarize because a network message ID for an individual email always comes with a unique sender address. Plots numeric values for a series of unique items and connects the plotted values, Plots numeric values for a series of unique items, Plots numeric values for a series of unique items and fills the sections below the plotted values, Plots numeric values for a series of unique items and stacks the filled sections below the plotted values, Plots values by count on a linear time scale, Drill down to detailed entity information, Tweak your queries directly from the results, Exclude the selected value from the query (, Get more advanced operators for adding the value to your query, such as. Device security No actions needed. 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 Select the three dots to the right of any column in the Inspect record panel. Shuffle the queryWhile summarize is best used in columns with repetitive values, the same columns can also have high cardinality or large numbers of unique values. Projecting specific columns prior to running join or similar operations also helps improve performance. How does Advanced Hunting work under the hood? Specifies the packaged app would be blocked if the Enforce rules enforcement mode were enabled. Find possible clear text passwords in Windows registry. Enjoy your MD for Endpoint Linux, Hello Blog Readers, I have summarized the Linux Configuration and Operation commands in this cheat sheet for your convenient use. These operators help ensure the results are well-formatted and reasonably large and easy to process. For more information on advanced hunting in Microsoft Defender for Cloud Apps data, see the video. Advanced hunting in Microsoft Defender for Endpoint allows customers to query data using a rich set of capabilities. There may be scenarios when you want to keep track of how many times a specific event happened on an endpoint. 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. After running your query, you can see the execution time and its resource usage (Low, Medium, High). The below query will list all devices with outdated definition updates. Threat Hunting The hunting capatibilities in WD ATP involves running queries and you're able to query almost everything which can happen in the Operating System. This repository has been archived by the owner on Feb 17, 2022. The signed file under validation is signed by a code signing certificate that has been revoked by Microsoft or the certificate issuing authority. Select the columns to include, rename or drop, and insert new computed columns. If you haven't yet, experience how you can effectively scale your organization's incident response capabilities by signing up for a free Microsoft Defender ATP trial. In addition, construct queries that adhere to the published Microsoft Defender ATP Advanced hunting performance best practices. 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, Displays the query results in tabular format, Renders a series of unique items on the x-axis as vertical bars whose heights represent numeric values from another field. You can also display the same data as a chart. See, Sample queries for Advanced hunting in Windows Defender ATP. The official documentation has several API endpoints . project returns specific columns, and top limits the number of results. Generating Advanced hunting queries with PowerShell. To mitigate command-line obfuscation techniques, consider removing quotes, replacing commas with spaces, and replacing multiple consecutive spaces with a single space. Some information relates to prereleased product which may be substantially modified before it's commercially released. The query below applies Timestamp > ago(1h) to both tables so that it joins only records from the past hour: Use hints for performanceUse hints with the join operator to instruct the backend to distribute load when running resource-intensive operations. Applied only when the Audit only enforcement mode is enabled. 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. Convert an IPv4 address to a long integer. Read about required roles and permissions for . 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. Turn on Microsoft 365 Defender to hunt for threats using more data sources. Simply select which columns you want to visualize. MDATP Advanced Hunting (AH) Sample Queries. Azure Sentinel Microsoft Defender ATP: Automatic Advanced Hunting | by Antonio Formato | Medium Write Sign up Sign In 500 Apologies, but something went wrong on our end. The Kusto query language used by advanced hunting supports a range of operators, including the following common ones. Read more Anonymous User Cyber Security Senior Analyst at a security firm Return the number of records in the input record set. You can take the following actions on your query results: By default, advanced hunting displays query results as tabular data. Find out more about the Microsoft MVP Award Program. See, Sample queries for Advanced hunting in Windows Defender ATP. | where ProcessCommandLine contains .decode(base64) or ProcessCommandLine contains base64 decode or ProcessCommandLine contains .decode64(, | project Timestamp , DeviceName , FileName , FolderPath , ProcessCommandLine , InitiatingProcessCommandLine. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. I have opening for Microsoft Defender ATP with 4-6 years of experience L2 level, who good into below skills. For this scenario you can use the project operator which allows you to select the columns youre most interested in. | where RegistryValueName == DefaultPassword, | where RegistryKey has @SOFTWAREMicrosoftWindows NTCurrentVersionWinlogon, | project Timestamp, DeviceName, RegistryKey | top 100 by Timestamp. "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. A tag already exists with the provided branch name. To use advanced hunting, turn on Microsoft 365 Defender. 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. 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. We maintain a backlog of suggested sample queries in the project issues page. 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. Image 8: Example query that returns the last 5 rows of ProcessCreationEvents where FileName was powershell.exe or cmd.exe. sign in Audit script/MSI file generated by Windows LockDown Policy (WLDP) being called by the script hosts themselves. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, Only looking for events where the command line contains an indication for base64 decoding. This is a useful feature to further optimize your query by adding additional filters based on the current outcome of your existing query. There are more complex obfuscation techniques that require other approaches, but these tweaks can help address common ones. Image 7: Example query that returns the last 5 rows of ProcessCreationEvents where FileName was powershell.exe. letisthecommandtointroducevariables. Are you sure you want to create this branch? 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. Monitoring blocks from policies in enforced mode If you are just looking for one specific command, you can run query as sown below. For example, use. For example, an attacker could reference an image file without a path, without a file extension, using environment variables, or with quotes. 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. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. We value your feedback. The summarize operator can be easily replaced with project, yielding potentially the same results while consuming fewer resources: The following example is a more efficient use of summarize because there can be multiple distinct instances of a sender address sending email to the same recipient address. | 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. Legitimate new applications and updates or potentially unwanted or malicious software could be blocked. This will run only the selected query. This query can be used to detect the following attack techniques and tactics (see MITRE ATT&CK framework) or security configuration states. Access to file name is restricted by the administrator. The samples in this repo should include comments that explain the attack technique or anomaly being hunted. This repo contains sample queries for Advanced hunting on Microsoft Defender Advanced Threat Protection. Lets break down the query to better understand how and why it is built in this way. This query identifies crashing processes based on parameters passed Let us know if you run into any problems or share your suggestions by sending email to wdatpqueriesfeedback@microsoft.com. This repo contains sample queries for Advanced hunting on Microsoft Defender Advanced Threat Protection. The results are enriched with information about the defender engine, platform version information as well as when the assessment was last conducted and when the device was last seen. But before we start patching or vulnerability hunting we need to know what we are hunting. Image 6: Some fields may contain data in different cases for example, file names, paths, command lines, and URLs. 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, Advanced hunting reference in Windows Defender ATP. This way you can correlate the data and dont have to write and run two different queries. In the Microsoft 365 Defender portal, go to Hunting to run your first query. Choosing the minus icon will exclude a certain attribute from the query while the addition icon will include it. Learn more about how you can evaluate and pilot Microsoft 365 Defender. Construct queries for effective charts. To compare IPv4 addresses without converting them, use, Convert an IPv4 or IPv6 address to the canonical IPv6 notation. After running your query, you can see the execution time and its resource usage (Low, Medium, High). To improve performance, it incorporates hint.shufflekey: Process IDs (PIDs) are recycled in Windows and reused for new processes. This repo contains sample queries for Advanced hunting on Windows Defender Advanced Threat Protection. Produce a table that aggregates the content of the input table. MDATP Advanced Hunting (AH) Sample Queries. 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. Windows Defender Application Control block event for Audit mode policies are displayed out more about the MVP! 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