Sigma detection rules, expert-reviewed

GitHub Audit: Dependabot Alerts and Security Updates Disabled

Flags GitHub audit events where Dependabot alerts or security updates are disabled for an organization or repositories.

Windows WMIC System Information Discovery via WMIC.EXE Recon

Flags WMIC.EXE executions running system info queries for OS and disk details.

Windows: Suspicious Child Process Spawned by VsCode code.exe

Alerts when code.exe spawns suspicious binaries, script hosts, or command-line activity that matches common execution patterns.

Windows: Rundll32 Launching NSIS Module for Stealer Capability

Alerts on rundll32.exe execution tied to NSIS module loading indicators (nsis_uns and PrintUIEntry) in the command line.

Linux process: enabling BPF kprobes tracing via /sys/kernel/debug/tracing/events/kprobes

Flags Linux commands that enable BPF kprobes tracing through debugfs and probe enable endpoints in the command line.

Linux: Alert on bpf_probe_write_user BPF helper warning strings

Alerts on Linux log messages referencing the bpf_probe_write_user helper warning string, indicating potential suspicious eBPF usage.

Windows WSL Process Spawning Uncommon Child Executables

Alerts when wsl.exe or wslhost.exe spawns suspicious child binaries from common temp/public/user directories.

Windows PowerShell Module Execution Matches Known Offensive PoshModule Script Names

Alerts on Windows PowerShell module executions where the script context matches known offensive PowerShell script/module names.

PowerShell on Windows adding Windows capabilities via Add-WindowsCapability

Alerts when PowerShell adds an OpenSSH-related Windows capability using Add-WindowsCapability.

Windows PowerShell imports Microsoft.ActiveDirectory.Management.dll via Import-Module (AD enumeration)

Alerts when PowerShell imports Microsoft.ActiveDirectory.Management.dll using Import-Module, indicating potential AD enumeration.

Windows IIS appcmd Creating GlobalRules URL Rewrite Configuration

Flags appcmd.exe commands that modify IIS global URL rewrite globalRules and commit the configuration.

Windows Capability Added via PowerShell Add-WindowsCapability (OpenSSH)

Flags PowerShell commands that add Windows capabilities, specifically OpenSSH, via Add-WindowsCapability in logged script blocks.

Windows PowerShell Active Directory Module Import for Enumeration

Detects PowerShell importing Microsoft.ActiveDirectory.Management.dll with Import-Module, often seen during AD enumeration.

Windows PowerShell AD Module DLL Import for Active Directory Enumeration

Flags PowerShell importing Microsoft.ActiveDirectory.Management.dll via Import-Module, a common step in AD discovery and enumeration.

Windows: Detect Aruba Netsvc DLL Search Order Hijacking via arubanetsvc.exe Loaded DLLs

Flags arubanetsvc.exe loading targeted DLLs outside standard system paths, suggesting possible DLL search order hijacking.