Sigma detection rules, expert-reviewed

Windows Process Creation: Detect Obfuscated PowerShell IEX Invocation from Invoke-Obfuscation

Detects PowerShell commands showing obfuscation markers consistent with Invoke-Obfuscation-powered IEX invocation.

PowerShell: Obfuscated IEX Invocation via Invoke-Obfuscation String/Variable Patterns

Alerts on obfuscated PowerShell IEX invocation strings built from Invoke-Obfuscation style concatenation patterns in ScriptBlockText.

PowerShell Module Obfuscated IEX Invocation via Invoke-Obfuscation Payload Patterns

Alerts when PowerShell module payloads contain patterns consistent with obfuscated IEX generation via Invoke-Obfuscation.

Windows System Service Creation of Obfuscated PowerShell IEX (Invoke-Obfuscation)

Flags Windows service creations whose ImagePath contains obfuscated PowerShell IEX invocation strings.

Windows Security: Detect Obfuscated PowerShell IEX Invocation via ServiceFileName Patterns (Event ID 4697)

Alerts on EventID 4697 instances where ServiceFileName matches obfuscated IEX-style PowerShell invocation patterns consistent with Invoke-Obfuscation.

Windows Credential Dump Tool Artifacts Written to Disk via File Events

Detects Windows file creation where the target filename contains or ends with known credential-dump tool or output names.

Windows Security: Suspicious Local Account Created with ANONYMOUS LOGON SamAccountName

Alerts on Windows local account creation where the new SamAccountName contains “ANONYMOUS” and “LOGON”.

Windows PowerShell Script Execution from Alternate Data Stream (ADS)

Flags PowerShell processes using Get-Content -Stream to execute or retrieve script content from an ADS.

Windows Process Creation Matching Mustang Panda Dropper Command-Line and winwsh.exe

Alerts on Windows process creation with temp-based wtaks/winwsh execution and script-launch command-line parameters.

Windows Image Load: Unsigned dbghelp.dll/dbgcore.dll Loaded by Suspicious Process

Alerts on unsigned loading of dbghelp.dll/dbgcore.dll, often associated with memory dump creation and credential-access workflows.

Windows Remote Thread Creation from Uncommon Parent Image

Alerts on remote thread creation on Windows when the source executable is rare, with exclusions for known benign image pairings.

Windows: Child Process Spawned with SYSTEM Integrity by LOCAL/NETWORK SERVICE Parent

Alert on Windows executions where a SYSTEM-integrity child is spawned by a LOCAL SERVICE or NETWORK SERVICE parent, excluding a specific rundll32 pattern.

Windows: sc.exe Service Configuration Changed by Medium-Integrity Users

Alerts on sc.exe runs from Medium-integrity users that include service config/binPath or failure command changes.

Windows Service Configuration Tampering by Medium-Integrity Processes

Alerts on medium-integrity processes running commands that target registry service configuration values for potential privilege escalation.

Windows getsystem via Meterpreter/Cobalt Strike when services.exe starts a likely privilege escalation command

Alerts when services.exe spawns cmd/%COMSPEC% commands writing to a named pipe consistent with getsystem behavior.