Sigma detection rules, expert-reviewed

Windows Registry-Based DLL Hijack via WAB.EXE Using WAB Registry DLLPath

Flags WAB.EXE DLLPath registry writes where the configured DLL path differs from the default.

Windows Process Creation: accesschk.exe Permission Audit Execution

Flags AccessChk (accesschk.exe) permission/audit executions using common query flags in Windows process creation logs.

Windows te.exe Execution of Test Components (TAEF) via Process Creation

Alerts on process activity involving te.exe, which may indicate TAEF-based execution of malicious test components.

Windows msiexec.exe Installer Process Spawning cmd.exe or PowerShell

Flags installer-initiated spawning of cmd.exe or PowerShell from Windows\Installer temporary msi-related processes.

Detect Elevated Windows Installer (msiexec) Running as SYSTEM

Flags msiexec.exe MSI activity from Windows Installer running with SYSTEM integrity, excluding known benign parent contexts.

Windows PowerShell via sqltoolsps.exe (sqltoolsps.exe child process exclusion)

Flags suspicious sqltoolsps.exe executions that may launch PowerShell, excluding cases where smss.exe spawned the utility.

Windows manage-bde.wsf via wscript/cscript Proxy Execution

Flags Windows process executions where wscript/cscript runs manage-bde.wsf, indicating potential proxy execution via LOLBIN.

Windows Process Command Line: Detect VAR++ LAUNCHER Obfuscated PowerShell

Flags Windows command lines showing VAR++ launcher-style obfuscated PowerShell execution through Invoke-Expression patterns.

Windows Process Creation: Obfuscated Cmd Uses clip.exe to Execute PowerShell

Alerts when cmd.exe uses obfuscated Clip.exe/clipboard calls to launch PowerShell.

Detect VAR++ LAUNCHER-Style Obfuscated PowerShell Command Block

Detects VAR++ LAUNCHER-like PowerShell obfuscation patterns in ScriptBlockText.

PowerShell Script Block Obfuscation via cmd/clipboard and clip.exe execution

Identifies obfuscated PowerShell script blocks launching clip.exe and chaining clipboard-related execution.

PowerShell Module: VAR++ LAUNCHER Obfuscation in Obfuscated Command Payload

Identifies obfuscated PowerShell module payloads matching a VAR++ LAUNCHER-style invocation pattern.

PowerShell Module: Obfuscated Clip.exe launcher using cmd with clipboard download payload

Detects obfuscated PowerShell module commands that run cmd with clip.exe/clipboard payload formatting.

Windows System: Detects Service Control Manager spawning obfuscated PowerShell via VAR++ LAUNCHER

Flags newly created Windows services whose ImagePath contains cmd chaining and obfuscated PowerShell launcher indicators.

Windows System Service Control: Obfuscated cmd Launching clip.exe for PowerShell

Flags service creation (Event 7045) with obfuscated cmd ImagePath using clip.exe/clipboard PowerShell execution patterns.