Sigma detection rules, expert-reviewed

Windows: Detect Suspicious DumpMinitool.exe Execution via Process Command-Line

Alerts on suspicious command-line usage of DumpMinitool.exe on Windows, leveraging process creation Image, OriginalFileName, and command-line text.

Windows Registry Key Change Disabling System Restore

Detects registry writes that disable Windows System Restore via policy/config keys set to DWORD 0x00000001.

Windows Registry Service Persistence via SafeBoot Control Keys

Flags Windows registry writes that configure a service to load in Safe Mode (SafeBoot Minimal/Network).

Windows Registry Key Changes Disabling PowerShell Logging for Current User

Detects registry changes that disable PowerShell module/script logging and transcription by setting logging keys to DWORD 0.

Windows PowerShell IEX Invocation Patterns in Process Creation Command Lines

Alerts on suspicious PowerShell command lines that pipe or otherwise invoke IEX and may include Base64 decoding.

Windows PowerShell Download and Execution Cradles

Flags PowerShell commands that download remote content and immediately execute it using IEX/Invoke-Expression.

Windows: reg.exe Registry Tampering of Windows Defender Policy Keys

Detects reg.exe adding Defender DWORD policy values to disable or suppress multiple protection features via Windows registry.

Windows Suspicious Parent Processes: Unusual Child Creation by System Utilities

Alerts when predefined suspicious Windows parent executables spawn unusual or unrecognized child processes.

Windows Service Control Manager: HackTool Service Installation or Start via Suspicious Service Names

Detects Windows service creation/start events tied to hacktool-like service names or ImagePath indicators.

Windows Scheduled Task Backdoor Execution via cmd.exe or PowerShell (System EventID /create /delete)

Flags cmd.exe/powershell.exe command lines that create a System/EventID-based scheduled task to run a payload.

Windows Service Installation via Scripted ImagePath Indicators (Event 7045)

Identifies suspicious Windows service installations that embed script host execution via Event ID 7045 ImagePath patterns.

Windows Service Installation with Suspicious ProgramData/Root Executable Image Paths

Flags Windows service installs (Event 7045) that reference suspicious EXE paths in ProgramData or directly under C:\.

Windows Service Installation with PowerShell Download and Hidden Execution

Alerts on Windows service creation (7045) with ImagePath patterns indicating hidden/staged command execution.

Windows Webserver Parent Process Launching Credential Dumping and Exfiltration Commands

Flags web server processes spawning child commands consistent with credential dumping, exfiltration, and privilege changes.

Windows PowerShell: Suspicious Get-ADDBAccount access to ntds.dit via BootKey and DatabasePath

Alerts on PowerShell invocations of Get-ADDBAccount that reference BootKey and DatabasePath for ntds.dit credential access.