Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
601 detections
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Detects malicious browser extension behavior where code injection into the MAIN world context is used to access browser session cookies or credential stores. This pattern is characteristic of BadBlocker and similar variants that use remotely-fetched scripts to perform session hijacking.
Detects the use of built-in Windows utilities (vssadmin, wmic, bcdedit, cipher) to delete Volume Shadow Copies or modify boot/recovery configurations, which is a common behavior used by ransomware and attackers to inhibit system recovery.
Detects the use of wmic.exe to spawn or interact with wscript.exe, which is a common pattern used by adversaries to execute scripts via WMI.
Detects the execution of mshta.exe when invoked with command-line arguments indicative of script execution (e.g., vbscript:, javascript:, http(s)://) or when spawned by common Microsoft Office applications. This behavior is frequently associated with malicious document-based attacks, where office macros trigger mshta to download or execute obfuscated code.
Detects usage of common built-in tools (driverquery.exe, sc.exe) and PowerShell commands (Get-WindowsDriver, WMI queries for Win32_PnPSignedDriver or Win32_SystemDriver) used to enumerate installed system drivers. This is often part of reconnaissance to identify third-party drivers for BYOVD (Bring Your Own Vulnerable Driver) attacks.
Detects the execution of VBScript (wscript.exe or cscript.exe) with unusually long command lines containing common obfuscation patterns such as character replacement or string splitting. This pattern is indicative of attempts to hide malicious code from static analysis.
Detects the execution of a script event consumer. When scrcons.exe launches, it does so in response to the creation of an ActiveScriptEventConsumer instance
and will execute registered JScript or VBScript code as a result.
Script event consumers are a built-in Windows Management Instrumentation (WMI) class that
automatically executes a predefined script (in VBScript or JScript) whenever a specific system event occurs.
Adversaries often abuse script event consumers to maintain persistence on a compromised host
by executing a malicious script whenever a specific event occurs.
and will execute registered JScript or VBScript code as a result.
Script event consumers are a built-in Windows Management Instrumentation (WMI) class that
automatically executes a predefined script (in VBScript or JScript) whenever a specific system event occurs.
Adversaries often abuse script event consumers to maintain persistence on a compromised host
by executing a malicious script whenever a specific event occurs.
Detects the usage of wmic.exe to enumerate or read Windows registry via the WMI StdRegProv class read methods (EnumKey, EnumValues, GetStringValue, etc.).
While registry reads are common, attackers may use this technique to perform reconnaissance and discover sensitive configuration values, credentials, or installed software.
The use of WMI as an alternative to standard tools like reg.exe can indicate an attempt to evade detection focused on traditional registry query commands.
While registry reads are common, attackers may use this technique to perform reconnaissance and discover sensitive configuration values, credentials, or installed software.
The use of WMI as an alternative to standard tools like reg.exe can indicate an attempt to evade detection focused on traditional registry query commands.
Detects usage of the "dir" command part of Windows CMD with the "/S" command line flag in order to enumerate files in a specified directory and all subdirectories.
Detects the tampering of Hypervisor-protected Code Integrity (HVCI) related registry values via command line tool reg.exe.
HVCI uses virtualization-based security to protect code integrity by ensuring that only trusted code can run in kernel mode.
Adversaries may tamper with HVCI to load malicious or unsigned drivers, which can be used to escalate privileges, maintain persistence, or evade security mechanisms.
HVCI uses virtualization-based security to protect code integrity by ensuring that only trusted code can run in kernel mode.
Adversaries may tamper with HVCI to load malicious or unsigned drivers, which can be used to escalate privileges, maintain persistence, or evade security mechanisms.
Detects the use of reg.exe to disable the Event Tracing for Windows (ETW) Autologger session for Windows Defender API and Audit events.
By setting the 'Start' value to '0' for the 'DefenderApiLogger' or 'DefenderAuditLogger' session, an attacker can prevent these critical security events
from being logged, effectively blinding monitoring tools that rely on this data. This is a powerful defense evasion technique.
By setting the 'Start' value to '0' for the 'DefenderApiLogger' or 'DefenderAuditLogger' session, an attacker can prevent these critical security events
from being logged, effectively blinding monitoring tools that rely on this data. This is a powerful defense evasion technique.
Detects process creation with suspicious whitespace padding followed by a '#' character, which may indicate ClickFix or FileFix techniques used to conceal malicious commands from visual inspection.
ClickFix and FileFix are social engineering attack techniques where adversaries distribute phishing documents or malicious links that deceive users into opening the Windows Run dialog box or File Explorer search bar.
The victims are then instructed to paste commands from their clipboard, which contain extensive whitespace padding using various Unicode space characters to push the actual malicious command far to the right, effectively hiding it from immediate view.
ClickFix and FileFix are social engineering attack techniques where adversaries distribute phishing documents or malicious links that deceive users into opening the Windows Run dialog box or File Explorer search bar.
The victims are then instructed to paste commands from their clipboard, which contain extensive whitespace padding using various Unicode space characters to push the actual malicious command far to the right, effectively hiding it from immediate view.
Detects when a user installs certificates by using CertOC.exe to load the target DLL file.
F-Secure C3 produces DLLs with a default exported StartNodeRelay function.
Detects various command line and scripting engines/processes such as "PowerShell", "Wscript", "Cmd", etc. spawning a "regsvr32" instance.
This rule detects the execution of Run Once task as configured in the registry
Detects usage of winget to add new additional download sources
Detects Obfuscated use of Clip.exe to execute PowerShell
Detects execution of "rundll32.exe" with a parent process of Explorer.exe. This has been observed by variants of Raspberry Robin, as first reported by Red Canary.
Ntvdm.exe allows the execution of 16-bit Windows applications on 32-bit Windows operating systems, as well as the execution of both 16-bit and 32-bit DOS applications
Detects tampering of the Vulnerable Driver Blocklist registry via command line tools such as PowerShell or REG.EXE.
The Vulnerable Driver Blocklist is a security feature that helps prevent the loading of known vulnerable drivers.
Disabling this feature may indicate an attempt to bypass security controls, often targeted by threat actors
to facilitate the installation of malicious or vulnerable drivers, particularly in scenarios involving Endpoint Detection and Response
The Vulnerable Driver Blocklist is a security feature that helps prevent the loading of known vulnerable drivers.
Disabling this feature may indicate an attempt to bypass security controls, often targeted by threat actors
to facilitate the installation of malicious or vulnerable drivers, particularly in scenarios involving Endpoint Detection and Response
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