This article is contributed. See the original author and article here.

 


Hello IT Pros,  


I have collected the Microsoft Endpoint Protection (Windows Defender ATP) advanced hunting queries from mdemo, Microsoft Demo and Github for your convenient reference. As we knew, you or your InfoSec Team may need to run a few queries in your daily security monitoring task.  


To save the query 



  • In Securitycenter.windows.com 

  • go to Advanced hunting and create the query 

  • copy and paste the content, 

  • save them for future re-use 


TanTran_0-1603104923361.png


 


 

















































































Query Name 



Content 



Note 



Search Device Events by IP address 



DeviceNetworkEvents 


| where RemoteIP == “52.176.49.76”  


 



 



List Devices with Schedule Task created by Virus 



DeviceProcessEvents  


| where FolderPath endswith “schtasks.exe” and ProcessCommandLine has ” /create ” and AccountName != “system” 


 



 



List Device contained Virus File Name 



DeviceFileEvents 


| where  FileName == ‘Invoice.pdf.exe’ 


 



 



List Devices with Phising File extension (double extension) as .pdf.exe, .docx.exe, .doc.exe, .mp3.exe  



DeviceProcessEvents  


| where Timestamp > ago(7d) 


| where FileName endswith “.pdf.exe” 


    or FileName endswith “.doc.exe” 


    or FileName contains “.docx.exe” 


    or FileName contains “.mp3.exe” 


| project Timestamp, DeviceName, FileName, AccountSid, AccountName, AccountDomain 


| top 100 by Timestamp 


 



 



List Device blocked by Windows Defender ExploitGuard 



DeviceEvents 


| where  ActionType  =~ “ExploitGuardNetworkProtectionBlocked” 


| summarize count(RemoteUrl) by InitiatingProcessFileName, RemoteUrl,Audit_Only=tostring(parse_json(AdditionalFields).IsAudit) 


| sort by count_RemoteUrl desc 


 



 



List All Files Create during the last hour 



DeviceFileEvents 


| where Timestamp > ago(1h) 


| project FileName, FolderPath, SHA1, DeviceName, Timestamp 


| limit 1000 


 



 



List Device who has a specific File Hash 



DeviceFileEvents 


| where SHA1 == “4aa9deb33c936c0087fb05e312ca1f09369acd27”  


 



 



List IP address blocked by FW rule 



DeviceEvents 


| where ActionType in (“FirewallOutboundConnectionBlocked”, “FirewallInboundConnectionBlocked”, “FirewallInboundConnectionToAppBlocked”) 


| project DeviceId , Timestamp , InitiatingProcessFileName , InitiatingProcessParentFileName, RemoteIP, RemotePort, LocalIP, LocalPort 


| summarize MachineCount=dcount(DeviceId) by RemoteIP 


| top 100 by MachineCount desc 


 



 



Look for public the IP addresses of devices that failed to logon multiple times, using multiple accounts, and eventually succeeded. 


 



DeviceLogonEvents 


| where isnotempty(RemoteIP)  


    and AccountName !endswith “$” 


    and RemoteIPType == “Public” 


| extend Account=strcat(AccountDomain, “”, AccountName) 


| summarize  


    Successful=countif(ActionType == “LogonSuccess”), 


    Failed = countif(ActionType == “LogonFailed”), 


    FailedAccountsCount = dcountif(Account, ActionType == “LogonFailed”), 


    SuccessfulAccountsCount = dcountif(Account, ActionType == “LogonSuccess”), 


    FailedAccounts = makeset(iff(ActionType == “LogonFailed”, Account, “”), 5), 


    SuccessfulAccounts = makeset(iff(ActionType == “LogonSuccess”, Account, “”), 5) 


    by DeviceName, RemoteIP, RemoteIPType 


| where Failed > 10 and Successful > 0 and FailedAccountsCount > 2 and SuccessfulAccountsCount == 1 


 


 



From WD ATP  


Demo 



Look for machines failing to log-on to multiple machines or using multiple accounts 



// Note – RemoteDeviceName is not available in all remote logon attempts 


DeviceLogonEvents 


| where isnotempty(RemoteDeviceName) 


| extend Account=strcat(AccountDomain, “”, AccountName) 


| summarize  


    Successful=countif(ActionType == “LogonSuccess”), 


    Failed = countif(ActionType == “LogonFailed”), 


    FailedAccountsCount = dcountif(Account, ActionType == “LogonFailed”), 


    SuccessfulAccountsCount = dcountif(Account, ActionType == “LogonSuccess”), 


    FailedComputerCount = dcountif(DeviceName, ActionType == “LogonFailed”), 


    SuccessfulComputerCount = dcountif(DeviceName, ActionType == “LogonSuccess”) 


    by RemoteDeviceName 


| where 


    Successful > 0 and 


    ((FailedComputerCount > 100 and FailedComputerCount > SuccessfulComputerCount) or 


        (FailedAccountsCount > 100 and FailedAccountsCount > SuccessfulAccountsCount)) 


 



From WD ATP 


Demo 



List all devices named start with prefix FC- 



DeviceInfo   


| where  DeviceName startswith “FC-“ 


 



 



List Windows Defender Scan Actions completed or Cancelled 



DeviceEvents 


| where ActionType in (“AntivirusScanCompleted”, “AntivirusScanCancelled”) 


| extend A=parse_json(AdditionalFields)  


| project Timestamp, DeviceName, ActionType,ScanType = A.ScanTypeIndex, StartedBy= A.User 


| sort by Timestamp desc  


 


 



 



List Devices access to bad URL 



DeviceNetworkEvents 


| where RemoteUrl == “www.advertising.com” 


| project Timestamp, DeviceName, ActionType, RemoteIP, RemoteUrl, InitiatingProcessFileName, InitiatingProcessCommandLine 


 



 



List All URL access by a Device named contained the word FC-DC 



DeviceNetworkEvents 


| where RemoteUrl != “www.advertising.com” and DeviceName contains “fc-dc” 


| project Timestamp, DeviceName, ActionType, RemoteIP, RemoteUrl, InitiatingProcessFileName, InitiatingProcessCommandLine 


 



 



 


Github Advanced Hunting Cheat Sheet: 



















































Purpose 



Query Content 



Notes 



Find endpoints communicating to a specific domain. 


 Author: @maarten_goet 



let Domain = “http://domainxxx.com”; DeviceNetworkEvents | where Timestamp > ago(7d) and RemoteUrl contains Domain | project Timestamp, DeviceName, RemotePort, RemoteUrl | top 100 by Timestamp desc 


 



let is the command to introduce variables.  


Variable name: “Domain” 


with value: http://domainxxx.com 



Finds PowerShell execution events that could involve a download. 


Author: @MicrosoftMTP  



union DeviceProcessEvents, 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 combine multiple Device Query Tables 



Find scheduled tasks created by a non-system account 


Author: @maarten_goet 



DeviceProcessEvents 


| where FolderPath endswith “schtasks.exe” and ProcessCommandLine has “/create” and AccountName != “system” 


| where Timestamp > ago(7d) 



 



 



 



 



Find possible clear text passwords in Windows registry.  


Author: @MicrosoftMTP 



DeviceRegistryEvents  


| where ActionType == “RegistryValueSet”  


| where RegistryValueName == “DefaultPassword”  


| where RegistryKey has @”SOFTWAREMicrosoftWindows NTCurrentVersionWinlogon” 


| project Timestamp, DeviceName, RegistryKey | top 100 by Timestamp 



 



Lookup process executed from binary hidden in Base64 encoded file.  


Author: @MicrosoftMTP 



DeviceProcessEvents 


| where Timestamp > ago(14d) 


| where ProcessCommandLine contains “.decode(‘base64’)” or ProcessCommandLine contains “base64 –decode” or ProcessCommandLine contains “.decode64(“ 


| project Timestamp , DeviceName , FileName , FolderPath , ProcessCommandLine , InitiatingProcessCommandLine  


| top 100 by Timestamp 



 



Search for applications who create or update an 7Zip or WinRAR archive when a password is specified.  


Author: @PowershellPoet 



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’)  


| mv-expand SplitLaunchString  


| 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  


 



 



 



 



 


Reference: 


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 


 


 


Disclaimer
The sample scripts are not supported under any Microsoft standard support program or service.
The sample scripts are provided AS IS without warranty of any kind.
Microsoft further disclaims all implied warranties including, without limitation,
any implied warranties of merchantability or of fitness for a particular purpose.
The entire risk arising out of the use or performance of the sample scripts and documentation
remains with you. In no event shall Microsoft, its authors, or anyone else involved in the creation,
production, or delivery of the scripts be liable for any damages whatsoever (including,
without limitation, damages for loss of business profits, business interruption,
loss of business information, or other pecuniary loss) arising out of the use of or inability
to use the sample scripts or documentation, even if Microsoft has been advised of the possibility
of such damages.

 

Brought to you by Dr. Ware, Microsoft Office 365 Silver Partner, Charleston SC.

%d bloggers like this: