SigmaHQ Detections
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6,797 detections
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Detects WerFault creating a dump file with a name that indicates the dump file could be an LSASS process memory dump, which contains user credentials. This technique is often used by adversaries to extract credentials for lateral movement or privilege escalation.
Detects the creation of suspicious executable or script files within the OneNote temporary directory, indicating potential malware delivery and execution via malicious OneNote attachments. This behavior has been observed in recent malware campaigns leveraging OneNote files.
This rule detects when PowerShell (powershell.exe or pwsh.exe) creates a new PowerShell script file (.ps1). While this behavior can be benign in many cases, it can also indicate a dropper script attempting to establish persistence on a system. The rule filters out common legitimate scenarios such as PowerShell's internal script policy tests and temporary files created in user AppData\Local\Temp or C:\Windows\Temp directories.
Detects the creation of new PowerShell module files (.ps or .dll) in the first folder of the module directory structure, specifically within '\WindowsPowerShell\Modules\*\'. This pattern is considered suspicious because legitimate PowerShell modules commonly include a version folder within their directory structure, making direct creation in the module root less common for benign modules.
This rule detects the creation of executable files (.exe) or dynamic link libraries (.dll) within the default Group Policy Object (GPO) storage folder. Adversaries may place malicious files in this location to leverage Group Policy for persistence, privilege escalation, or to distribute malware across a domain. The specific folder path targeted is '\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}\' which corresponds to the Default Domain Policy GPO.
Detects the creation of the PROCEXP152.sys file in the application-data local temporary folder. This driver is used by Sysinternals Process Explorer but also by KDU (Kernel Driver Utility) or Ghost-In-The-Logs, which uses KDU. This activity can indicate an attempt to load a malicious driver for defense evasion or other purposes.
This rule detects the creation or modification of a PowerShell profile specifically for Visual Studio Code (VSCode). Adversaries may modify these profiles to establish persistence or escalate privileges by injecting malicious commands or scripts that execute every time a user opens a VSCode PowerShell session. This technique can be used to run arbitrary code without direct user interaction after the initial compromise.
This rule detects a specific pattern indicative of a User Account Control (UAC) bypass technique using 'IEInstal.exe'. Specifically, it looks for 'IEInstal.exe' creating a file named 'consent.exe' within a user's temporary application data directory (e.g., 'C:\Users\<username>\AppData\Local\Temp\'). This behavior is characteristic of UACMe, an open-source tool designed to exploit various UAC bypass methods.
Detects a specific User Account Control (UAC) bypass technique that involves modifying the msconfig GUI. This rule specifically looks for the creation of a file named 'pkgmgr.exe' within a user's temporary directory, which is a known indicator for the UACMe bypass method 55.
Detects cmstp loading "dll" or "ocx" files from suspicious locations, which is a known technique for defense evasion and proxy execution. Adversaries can abuse CMSTP.exe, a legitimate Microsoft binary, to load and execute malicious DLLs or OCX files from non-standard directories, potentially bypassing application whitelisting and other security controls.
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