EXPLORE DETECTIONS
Windows Recall Feature Enabled - DisableAIDataAnalysis Value Deleted
Detects the enabling of the Windows Recall feature via registry manipulation. Windows Recall can be enabled by deleting the existing "DisableAIDataAnalysis" registry value. Adversaries may enable Windows Recall as part of post-exploitation discovery and collection activities. This rule assumes that Recall is already explicitly disabled on the host, and subsequently enabled by the adversary.
Windows Recall Feature Enabled - Registry
Detects the enabling of the Windows Recall feature via registry manipulation. Windows Recall can be enabled by setting the value of "DisableAIDataAnalysis" to "0". Adversaries may enable Windows Recall as part of post-exploitation discovery and collection activities. This rule assumes that Recall is already explicitly disabled on the host, and subsequently enabled by the adversary.
Windows Recall Feature Enabled Via Reg.EXE
Detects the enabling of the Windows Recall feature via registry manipulation. Windows Recall can be enabled by deleting the existing "DisableAIDataAnalysis" value, or setting it to 0. Adversaries may enable Windows Recall as part of post-exploitation discovery and collection activities. This rule assumes that Recall is already explicitly disabled on the host, and subsequently enabled by the adversary.
Windows Recovery Environment Disabled Via Reagentc
Detects attempts to disable windows recovery environment using Reagentc. ReAgentc.exe is a command-line tool in Windows used to manage the Windows Recovery Environment (WinRE). It allows users to enable, disable, and configure WinRE, which is used for troubleshooting and repairing common boot issues.
Windows Registry Trust Record Modification
Alerts on trust record modification within the registry, indicating usage of macros
Windows Screen Capture with CopyFromScreen
Adversaries may attempt to take screen captures of the desktop to gather information over the course of an operation. Screen capturing functionality may be included as a feature of a remote access tool used in post-compromise operations
Windows Service Terminated With Error
Detects Windows services that got terminated for whatever reason
Windows Share Mount Via Net.EXE
Detects when a share is mounted using the "net.exe" utility
Windows Shell/Scripting Application File Write to Suspicious Folder
Detects Windows shells and scripting applications that write files to suspicious folders
Windows Shell/Scripting Processes Spawning Suspicious Programs
Detects suspicious child processes of a Windows shell and scripting processes such as wscript, rundll32, powershell, mshta...etc.
Windows Terminal Profile Settings Modification By Uncommon Process
Detects the creation or modification of the Windows Terminal Profile settings file "settings.json" by an uncommon process.
Windows Update Error
Detects Windows update errors including installation failures and connection issues. Defenders should observe this in case critical update KBs aren't installed.
Windows Vulnerable Driver Blocklist Disabled
Detects when the Windows Vulnerable Driver Blocklist is set to disabled. This setting is crucial for preventing the loading of known vulnerable drivers, and its modification may indicate an attempt to bypass security controls. It is often targeted by threat actors to facilitate the installation of malicious or vulnerable drivers, particularly in scenarios involving Endpoint Detection and Response (EDR) bypass techniques. This rule applies to systems that support the Vulnerable Driver Blocklist feature, including Windows 10 version 1903 and later, and Windows Server 2022 and later. Note that this change will require a reboot to take effect, and this rule only detects the registry modification action.
Windows WebDAV User Agent
Detects WebDav DownloadCradle
Windows Webshell Strings
Detects common commands used in Windows webshells
WINEKEY Registry Modification
Detects potential malicious modification of run keys by winekey or team9 backdoor
Winget Admin Settings Modification
Detects changes to the AppInstaller (winget) admin settings. Such as enabling local manifest installations or disabling installer hash checks
Winlogon AllowMultipleTSSessions Enable
Detects when the 'AllowMultipleTSSessions' value is enabled. Which allows for multiple Remote Desktop connection sessions to be opened at once. This is often used by attacker as a way to connect to an RDP session without disconnecting the other users
Winlogon Helper DLL
Winlogon.exe is a Windows component responsible for actions at logon/logoff as well as the secure attention sequence (SAS) triggered by Ctrl-Alt-Delete. Registry entries in HKLM\Software[Wow6432Node]Microsoft\Windows NT\CurrentVersion\Winlogon\ and HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ are used to manage additional helper programs and functionalities that support Winlogon. Malicious modifications to these Registry keys may cause Winlogon to load and execute malicious DLLs and/or executables.
Winlogon Notify Key Logon Persistence
Adversaries may abuse features of Winlogon to execute DLLs and/or executables when a user logs in. Winlogon.exe is a Windows component responsible for actions at logon/logoff as well as the secure attention sequence (SAS) triggered by Ctrl-Alt-Delete.
Winrar Compressing Dump Files
Detects execution of WinRAR in order to compress a file with a ".dmp"/".dump" extension, which could be a step in a process of dump file exfiltration.
WinRAR Creating Files in Startup Locations
Detects WinRAR creating files in Windows startup locations, which may indicate an attempt to establish persistence by adding malicious files to the Startup folder. This kind of behaviour has been associated with exploitation of WinRAR path traversal vulnerability CVE-2025-6218 or CVE-2025-8088.
WinRAR Execution in Non-Standard Folder
Detects a suspicious WinRAR execution in a folder which is not the default installation folder
Winrs Local Command Execution
Detects the execution of Winrs.exe where it is used to execute commands locally. Commands executed this way are launched under Winrshost.exe and can represent proxy execution used for defense evasion or lateral movement.