SigmaHQ Detections
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6,797 detections
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Detects calls to "LoadAssemblyFromPath" or "LoadAssemblyFromNS" that are part of the "CL_LoadAssembly.ps1" script. This can be abused to load different assemblies and bypass App locker controls.
Detects the execution of obfuscated PowerShell commands that attempt to install MSI packages via the Windows Installer COM object (`WindowsInstaller.Installer`).
The technique involves manipulating strings to hide functionality, such as constructing class names using string insertion (e.g., 'indowsInstaller.Installer'.Insert(0,'W')) and correcting
malformed URLs (e.g., converting 'htps://' to 'https://') at runtime. This behavior is commonly associated with malware loaders or droppers that aim to bypass static detection
by hiding intent in runtime-generated strings and using legitimate tools for code execution. The use of `InstallProduct` and COM object creation, particularly combined with
hidden window execution and suppressed UI, indicates an attempt to install software (likely malicious) without user interaction.
The technique involves manipulating strings to hide functionality, such as constructing class names using string insertion (e.g., 'indowsInstaller.Installer'.Insert(0,'W')) and correcting
malformed URLs (e.g., converting 'htps://' to 'https://') at runtime. This behavior is commonly associated with malware loaders or droppers that aim to bypass static detection
by hiding intent in runtime-generated strings and using legitimate tools for code execution. The use of `InstallProduct` and COM object creation, particularly combined with
hidden window execution and suppressed UI, indicates an attempt to install software (likely malicious) without user interaction.
Detects the use of the PowerShell "Set-Service" cmdlet to change the startup type of a service to "disabled" or "manual"
Detects deletion of the RunMRU registry key, which stores the history of commands executed via the Run dialog.
In the clickfix techniques, the phishing lures instruct users to open a run dialog through (Win + R) and execute malicious commands.
Adversaries may delete this key to cover their tracks after executing commands.
In the clickfix techniques, the phishing lures instruct users to open a run dialog through (Win + R) and execute malicious commands.
Adversaries may delete this key to cover their tracks after executing commands.
Detects the execution of "reg.exe" to alter registry keys that would replace the user's desktop background.
This is a common technique used by malware to change the desktop background to a ransom note or other image.
This is a common technique used by malware to change the desktop background to a ransom note or other image.
Detects execution of "reg.exe" to disable security services such as Windows Defender.
Detects changes to the "NoLMHash" registry value in order to allow Windows to store LM Hashes.
By setting this registry value to "0" (DWORD), Windows will be allowed to store a LAN manager hash of your password in Active Directory and local SAM databases.
By setting this registry value to "0" (DWORD), Windows will be allowed to store a LAN manager hash of your password in Active Directory and local SAM databases.
Detects potential suspicious behaviour using secedit.exe. Such as exporting or modifying the security policy
Detects weak passwords or often abused passwords (seen used by threat actors) via the CLI.
An example would be a threat actor creating a new user via the net command and providing the password inline
An example would be a threat actor creating a new user via the net command and providing the password inline
Detect VBoxDrvInst.exe run with parameters allowing processing INF file.
This allows to create values in the registry and install drivers.
For example one could use this technique to obtain persistence via modifying one of Run or RunOnce registry keys
This allows to create values in the registry and install drivers.
For example one could use this technique to obtain persistence via modifying one of Run or RunOnce registry keys
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