Sigma detection rules, expert-reviewed

Windows PowerShell ScriptBlock keyword match for WinPwn tool usage

Alerts when PowerShell ScriptBlock text contains WinPwn execution or script/file reference keywords.

Windows Registry: Netsh Helper DLL value added under SOFTWARE\Microsoft\NetSh

Alerts on Windows registry writes under SOFTWARE\Microsoft\NetSh that add .dll helper entries.

Windows: Netsh helper DLL registration via suspicious registry paths

Flags Netsh helper DLL registration when the DLL path is found in suspicious user/temp-like registry details on Windows.

Windows ImageLoad: Uncommon Process Loads RstrtMgr.dll (Restart Manager)

Alerts on non-standard processes loading RstrtMgr.dll using Windows image load telemetry.

Windows Image Load of RstrtMgr.dll by Suspicious Path or User Content

Alerts on RstrtMgr.dll loading from suspicious path contexts using Windows image load telemetry.

Python-Based Tool LSASS Process Access for Credential Dumping (Windows)

Alerts on process-access attempts to lsass.exe with a Python-related call trace and high granted access.

Windows HackTool Process Access: Detect Access by Common Tool Image Names

Alerts on Windows process access events initiated by processes whose image names match common credential/dumping hack tools.

wusa.exe Execution with Parent in Suspicious Windows Paths

Alerts when wusa.exe is spawned by a parent running from common suspicious Windows directories, excluding .msu-related noise.

Windows Registry IME File Value Used from Suspicious Paths

Alerts on Windows keyboard layout "Ime File" registry entries pointing to suspicious writable directory paths.

Windows Registry: Uncommon IME File Value in Keyboard Layouts Path

Alerts on Control\Keyboard Layouts\ registry values named "Ime File" that reference non-.ime extensions.

Windows Network Connections to Visual Studio Code Tunnels Domain

Alerts on initiated network connections to .tunnels.api.visualstudio.com from a Windows process.

Windows Network Connections to *.devtunnels.ms

Alerts on initiated Windows network connections to .devtunnels.ms hostnames, which may indicate remote access use.

Windows Process Creation: Excel DCOM Child Processes Linked to ActivateMicrosoftApp

Alerts when excel.exe spawns foxprow.exe, schdplus.exe, or winproj.exe, consistent with suspicious Excel DCOM automation activity.

Windows: Command-Line Use of ms-appinstaller Protocol Handler for File Downloads

Alerts on Windows command lines invoking ms-appinstaller with an http source, indicating potential remote file download behavior.

Windows msxsl.exe Execution with HTTP Keyword in Command Line

Flags execution of msxsl.exe when the command line includes an HTTP URL indicator.