Sigma detection rules, expert-reviewed

Windows CSharp Streamer RAT Potentially Loaded .NET Executable from Temp dat####.tmp

Identifies .NET executable image loads from a CSharp Streamer RAT-like Temp .tmp path pattern on Windows.

Windows Network Connections to LocaltoNet/Localtonet Tunneling Subdomains

Alerts on initiated outbound connections from Windows hosts to LocaltoNet/.localtonet.com tunneling domains.

Linux: Network connections initiated to LocaltoNet tunneling subdomains

Alerts when a Linux host initiates outbound connections to LocaltoNet (.localto.net/.localtonet.com) tunneling subdomains.

Windows: File Creation by mysqld.exe With Script/Executable Extensions

Alerts on file creation by mysqld.exe producing .bat/.exe/.ps1/.vbs and other executable or script file types on Windows.

Windows: wbadmin.exe Used to Recover/Dump Sensitive Registry Hives and NTDS.dit

Alert on wbadmin.exe recovery commands targeting SAM/SECURITY/SYSTEM hives and NTDS.dit.

Windows Process Creation: wbadmin.exe Triggered for Backup of Sensitive Registry and NTDS Files

Alerts on wbadmin.exe backup commands that reference SAM/SECURITY/SYSTEM hives or NTDS.DIT.

Proxy WebDAV MiniRedir Drives Execution from External Shares

Alert on external WebDAV MiniRedir GET requests for executable-like file extensions that may lead to execution.

Linux network connections to known malware callback ports

Alerts on initiated Linux outbound connections to specific known suspicious destination ports, excluding local/private IP ranges.

Windows: Alert on Outbound Connections Initiated by dialer.exe (Microsoft Phone Dialer)

Alerts on outbound connections started by Windows dialer.exe, excluding common local and reserved IP ranges.

Windows Registry Set: Custom Protocol Handler DLL for CLSID {026CC6D7-34B2-33D5-B551-CA31EB6CE345}

Alerts when a Windows registry entry for a specific custom protocol handler CLSID is set to a DLL.

Windows Process Creation: Forest Blizzard-related hashes and scheduled task activity

Detects suspicious Windows process execution tied to known hashes or schtasks/PowerShell command-line patterns used for staging and compression.

Windows File Creation: ProgramData Persistence Artifacts Matching

Alerts on Windows file creations in C:\ProgramData matching specific driver inf, .dll, and batch/script filename patterns.

Suspicious Palo Alto GlobalProtect Session Unmarshal Path Traversal and Command Injection Attempts

Detects GlobalProtect logs with directory traversal/command injection-style indicators tied to CVE-2024-3400 behavior.

Windows DLL side-loading: KeyScramblerIE.DLL loaded by KeyScrambler.exe

Alerts on KeyScrambler.exe loading KeyScramblerIE.dll, a common DLL side-loading pattern that may indicate malicious library execution.

Linux sshd Spawns Root Shell Script Commands Suggesting CVE-2024-3094 Exploitation

Alerts on sshd spawning bash/sh one-liners as root, a potential indicator of CVE-2024-3094 style exploitation.