Sigma detection rules, expert-reviewed

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.

Windows schtasks.exe Create Executes File from AppData\Local

Alerts on schtasks.exe creating tasks that run payloads from C:\Users\<user>\AppData\Local.

Windows HackTool Process Patterns for CrackMapExec LSASS Dumping

Alerts on Windows command-line process patterns consistent with LSASS dumping in CrackMapExec workflows.

Windows Process Creation: Detect NTDS.DIT and Registry Hive Exfiltration Tooling

Detects suspicious Windows processes that reference NTDS.DIT/SYSTEM hive dumping or staging via common NTDS tooling and scripts.

Windows NTDS Exfiltration File Creation by NTDS Export Filename Patterns

Alerts on Windows file creates using common NTDS-DIT dump/exfiltration filename suffixes like \All.cab and .ntds.cleartext.

Windows Suspicious UltraVNC Command Line With Auto-Reconnect Flags

Alerts on UltraVNC execution using -autoreconnect with -connect and -id in the Windows command line.

PowerShell Base64 Encoded MpPreference Command Lines for Windows Defender Modification

Detects PowerShell Base64 command lines referencing Add-MpPreference/Set-MpPreference to modify Microsoft Defender AV settings.

Windows PowerShell: Disable Microsoft Defender Scanning via Set-MpPreference

Flags PowerShell commands that disable Microsoft Defender scanning/protection settings using Set-MpPreference, including encoded variants.