Sigma detection rules, expert-reviewed

Windows: Detect ftp.exe Executed With -s or /s for Script-Based Command Execution

Flags Windows executions of ftp.exe using -s or /s, indicating potential scripted command abuse.

PowerShell Script Obfuscation Triggered by Use of clip.exe and Clipboard Invocation

Flags PowerShell Script Block Logging containing clip.exe/clipboard chaining and clipboard-driven execution markers.

PowerShell module obfuscation using clip.exe with echo and clipboard invocation

Flags obfuscated PowerShell module scripts that echo “clip” and invoke clipboard-related behavior.

Windows PowerShell: Detect Suspicious Opsec Artifacts in Script Module Content

Identifies PowerShell module content containing frequent offensive payload string markers associated with poor operational security.

Windows Service Control Manager Rundll32 Obfuscation via Command-Line Encoded PowerShell

Detects service creation where ImagePath invokes rundll32 (shell32) with command-chain tokens indicative of obfuscated PowerShell.

Windows System: mshta Launches vbscript:createobject via Service Control Manager (Event ID 7045)

Flags Windows service creation (7045) where ImagePath includes mshta and vbscript:createobject.

Windows System: Suspicious Clip.exe Execution via Service Control Manager (Event ID 7045)

Alerts on Windows service creation starting clipboard/Clip.exe-related binaries via Service Control Manager ImagePath.

Windows Security 4697: Obfuscated command uses rundll32 with shell32.dll

Alerts on EventID 4697 service command lines containing rundll32 with shell32.dll/shellexec_rundll and obfuscation-like script fragments.

Windows Security EID 4697: mshta Used to Run Obfuscated VBScript PowerShell

Detects service creation where the binary path includes mshta plus VBS/automation indicators consistent with script-based obfuscation.

Windows Security 4697: Obfuscated PowerShell via use of Clip.exe from scripts

Alerts on EID 4697 service installations where the service file name matches Clip/clipboard indicators tied to obfuscated PowerShell.

Windows regini.exe Execution Leading to Registry Key Changes

Alerts on Windows executions of regini.exe that can import registry changes from text files.

Windows net.exe Unmount Share (/delete) Execution

Alerts on net.exe/net1.exe commands that include "share" and "/delete", indicating share unmount/removal on Windows.

Windows Process Dumping via sqldumper.exe with 0x0110 Command-Line Flags

Alerts on sqldumper.exe executions with command-line dump parameters indicative of process dumping.

Windows: Code Execution via Pester.bat Using PowerShell Help or cmd.exe

Flags Windows process executions that invoke Pester-related help/commands via PowerShell or cmd, consistent with Pester.bat usage.

Windows Process Execution: Obfuscated PowerShell Invocation Using mshta with VBScript CreateObject

Flags Windows process command lines containing an obfuscated PowerShell+MSHTA VBScript execution pattern.