Sigma detection rules, expert-reviewed

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 Registry Defense Impairment via Explorer Hide* Policy Values

Flags registry set events that change Explorer hide-related DWORD values under Windows policy keys to impair user visibility.

Windows Registry Policy Change to Disable/Impair Internal Tools and UI Features

Detects registry policy edits that disable Windows tools/features or alter related system behavior via specific DWORD values.

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 Registry Run Key Entries Containing PowerShell Execution Strings

Alerts when registry Run key value data contains PowerShell launch or encoded download/execution strings on Windows.

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 PktMon.exe Process Execution (pktmon.exe / PktMon.exe)

Alerts on Windows executions of PktMon.exe based on process creation image name and OriginalFileName.

Windows PowerShell: Suspicious Process Discovery Using Get-Process

Alerts when PowerShell script blocks contain Get-Process, indicating local process discovery activity.

PowerShell Password Policy Discovery via Get-AdDefaultDomainPasswordPolicy (Windows)

Alerts when PowerShell calls Get-AdDefaultDomainPasswordPolicy to enumerate an AD domain’s default password policy.

Windows PowerShell Directory Enumeration via Get-ChildItem and Output Redirection

Flags PowerShell directory enumeration patterns using Get-ChildItem, error suppression, and appended output to a file.

Windows PowerShell Active Directory Group Enumeration via Get-AdGroup Cmdlet

Flags PowerShell script blocks that call Get-ADGroup with -Filter to enumerate Active Directory groups.

PowerShell: Active Directory computer enumeration via Get-AdComputer

Flags PowerShell script blocks using Get-ADComputer with enumeration-related parameters for AD computer discovery.