Sigma detection rules, expert-reviewed

ArcSOC.exe Creates Suspicious Script/Executable Files on Windows

Alerts when ArcSOC.exe creates files with script/executable extensions such as .exe, .ps1, .aspx, or .bat.

Windows Process Creation: File Upload Clickfix Lure via Browser to Command Execution

Alerts when browser-launched processes include clickfix-style command markers plus tool and captcha-related terms on Windows.

Windows WSASS Process Execution via WerFaultSecure.EXE

Alerts on Windows process creation showing wsass.exe running with WerFaultSecure.exe and a PID-like argument.

Windows Process: GPME Used to Modify Default Domain and Default Domain Controllers GPOs

Flags MMC launching GPME to target Default Domain/Default Domain Controllers GPO objects by GUID via gpobject.

Windows ImageLoad of Unsigned .node Native Add-on Files

Alerts on Windows loading of unsigned or unverifiable .node files, indicating potential native code execution in Electron-based apps.

Windows Security Event 5136 for Changes to Default Domain and Default Domain Controllers GPOs

Flags EventID 5136 modifications to Default Domain or Default Domain Controllers GPO containers in Windows AD.

Windows ClickFix/FileFix Clipboard Phishing Leading to Suspicious mshta/powershell Command Execution

Alerts on explorer.exe child process launches with clipboard markers and anti-bot/CAPTCHA-related wording indicating ClickFix/FileFix execution.

Windows Network Connection Initiated by finger.exe

Alerts on Windows network connections started by finger.exe, an unusual utility that can support remote command retrieval.

Windows DNS Queries Triggered by finger.exe

Alerts on Windows DNS queries made by finger.exe, a rarely used utility that can be abused to fetch remote commands.

Windows: Suspicious Kerberos Ticket Requests from PowerShell Using KerberosRequestorSecurityToken

Flags PowerShell command lines that reference KerberosRequestorSecurityToken and .GetRequest() for suspicious Kerberos ticket requests.

Windows RDP Enable/Disable via Win32_TerminalServiceSetting WMI Tool Commands

Flags WMIC/PowerShell command lines that reference Win32_TerminalServiceSetting SetAllowTSConnections to change RDP.

Windows svchost.exe Uncommon Command-Line Parameter Process Creation

Alerts on Windows process starts of svchost.exe that include an uncommon -k parameter format, after excluding common and benign patterns.

Windows CMD for /f Tokens= with Recursive Dir Listing

Flags cmd.exe for /f loops using tokens= with recursive dir enumeration in the command line and parent.

Windows Registry: Suspicious Space-Padded TypedPaths Details String

Alerts on registry writes to TypedPaths url1 where Details includes “#” plus unusual Unicode space padding.

Windows Registry RunMRU Path with Suspicious Space Characters and Delimiter

Alerts on RunMRU registry updates containing '#' plus excessive unusual Unicode spaces that may conceal command text.