Sigma detection rules, expert-reviewed

Windows Rundll32 DLL Load via control.exe spawning

Alerts on control.exe spawning rundll32.exe to load Shell32.dll via DLL invocation patterns.

Firewall Alerts for C2 IP Traffic to 69.42.98.86 and 89.185.234.145

Alerts when firewall traffic involves the two specified IPs associated with presumed C2 communication.

Windows Security: AD user/computer backdoor via msDS-AllowedToDelegateTo and delegation attributes

Alerts on AD delegation-related attribute changes that may create credentialless account control paths.

PowerShell Credential Prompt via PromptForCredential

Flags PowerShell scripts that reference "PromptForCredential", indicating credential prompt behavior in Script Block Logging.

Linux Command-Line Indicators of Equation Group Tooling

Flags execution of known suspicious Linux shell command patterns tied to Equation Group-style scripting and tooling.

Windows CScript and csvde Command-Line Execution Patterns Suggesting Cloud Hopper Activity

Detects cscript VBScript shell execution and csvde writing log files into C:\windows\web\.

Windows Service Install (Event ID 7045) for srservice, ipvpn, hkmsvc

Alerts on Windows service creation events (7045) for srservice, ipvpn, and hkmsvc service names.

Windows Registry UAC Bypass via Event Viewer Command Key (mscfile shell open command)

Alerts on registry changes to the mscfile shell open command key consistent with an Event Viewer UAC bypass technique.

Windows Event Viewer (eventvwr.exe) Spawns Suspicious Child Processes

Alerts when eventvwr.exe spawns unusual child processes in Windows process creation logs.

Windows Network Connections to Known Malware Callback Ports (Suspicious Destination Ports)

Flags Windows processes initiating outbound connections to malware callback ports, excluding local/private IP ranges.

Windows network connection from process running in suspicious or uncommon file paths

Alerts on Windows network connections initiated by processes executing from suspicious or uncommon directories.

Windows UAC Bypass Indicator via sdclt Registry Key Manipulation

Alerts on registry set activity consistent with sdclt-related UAC bypass key manipulation.

Linux Log Shellshock Expression Pattern Matching

Identifies Shellshock-style function-body expressions in Linux log data via keyword string matches.

Windows PowerShell ScriptBlock with Encoded, Hidden, or Noninteractive Execution Parameters

Alerts on PowerShell ScriptBlockText containing encoded command, hidden window, or noninteractive execution parameters.

Suspicious PowerShell Module Execution Using Encoded, Hidden, or Noninteractive Context (Windows)

Alerts on PowerShell module executions using encoded commands, hidden windows, or noninteractive flags to evade visibility and interaction.