Sigma detection rules, expert-reviewed

Windows: CertOC.exe Loading a DLL from User-Writable Paths via -LoadDLL

Alerts on CertOC.exe using -LoadDLL with DLLs from temp/user-writable directories on Windows.

Windows PowerShell Console History File Deleted (PSReadLine)

Flags deletion of the PowerShell PSReadLine ConsoleHost_history.txt file, which can remove command history evidence.

Windows Event Log EVTX File Deletion in winevt\Logs

Flags deletion of Windows Event Log .evtx files under System32\winevt\Logs.

Windows WMIC Remote Query Execution via /node

Identifies remote WMIC queries on Windows by matching WMIC execution with /node: in the command line.

Windows WMIC.exe Service Reconnaissance via Remote Service Queries

Flags WMIC.exe commands containing service-related reconnaissance strings while excluding stop/start service manipulation.

Windows WMIC.exe Product Class Reconnaissance via Security Product Queries

Detects wmic.exe being used to enumerate firewall, antivirus, and antispyware product classes.

Windows WMIC Product Reconnaissance via Firewall/AV Enumeration

Alerts on wmic.exe executions with command lines consistent with Windows product enumeration for reconnaissance.

Windows wmic.exe Hardware Model Reconnaissance Using csproduct

Flags wmic.exe executions that include "csproduct" to query hardware model/vendor details.

Windows execution of LocalPotato POC (LocalPotato.exe with specific PE/CLI traits)

Detects LocalPotato.exe process execution on Windows using image path, typical CLI parameters, and known imphash values.

Windows Suspicious Execution of Regasm/Regsvcs With Uncommon Command-Line Extension

Flags Regasm.exe/Regsvcs.exe runs that include unusual extensions in the command line, which may indicate stealthy misuse.

Windows: Filter Driver Unload via fltMC.exe

Flags fltMC.exe executions that include "unload" to indicate potential filter driver unloading for defense impairment.

Windows: Suspicious Executable Created in Temp by OneNote (onenote.exe/onenotem.exe/onenoteim.exe)

Alerts when OneNote creates files in Temp\OneNote with script/executable extensions on Windows.

Windows Registry: Outlook EnableUnsafeClientMailRules Set to 1

Alerts when Outlook’s EnableUnsafeClientMailRules registry value is enabled (DWORD 0x1), reducing mailbox macro/script protections.

Suspicious Windows Process Execution of gatherNetworkInfo.vbs via Cscript/Wscript

Alerts on Windows executions referencing gatherNetworkInfo.vbs in process command lines, indicative of potential discovery activity.

Windows: Outlook loads outlvba.dll (VBA for Outlook add-in) via image loading

Alerts on outlvba.dll being loaded by outlook.exe, indicating VBA add-in execution within Outlook.