Sigma detection rules, expert-reviewed

PowerShell Classic Compress-Archive staging in TEMP or Temp directories

Alerts on PowerShell Compress-Archive output targeting common Temp directories for data staging.

Windows mshta.exe Process Creation Triggered by Suspicious Command Lines

Alert on mshta.exe launches from suspicious parents and script-like command lines/paths.

Windows Process Execution of SyncAppvPublishingServer.vbs with Inline PowerShell Commands

Flags Windows executions of SyncAppvPublishingServer.vbs with a semicolon-augmented command line consistent with embedded PowerShell.

PowerShell executes ADRecon.ps1 AD reconnaissance functions and writes ADRecon-Report.xlsx

Detects PowerShell ADRecon reconnaissance script content by matching AD discovery functions and the default ADRecon report output name.

Windows: Suspicious Parent-Serv-U.exe Command-Line Process Spawning

Alerts when Serv-U (\Serv-U.exe) spawns typical command interpreters or execution utilities on Windows.

Windows reg.exe Used to Modify Security Service Start Parameters

Flags reg.exe registry changes that target Start parameters for common security and Windows Defender-related services.

Suspicious PowerShell Execution From Windows Temporary Folders on Windows

Alerts when PowerShell runs with command-line paths pointing to Windows temp directories, excluding some common benign installers.

Windows ProtocolHandler.exe Download via Embedded URL Schemes

Flags ProtocolHandler.exe executions with ftp/http/https URLs that indicate automated downloading on Windows.

Windows PowerShell: AtomicTestHarness Invoke-ATHRemoteFXvGPUDisablementCommand Abuse

Alerts on Windows process command lines invoking AtomicTestHarnesses RemoteFXvGPUDisablement PowerShell execution.

Windows: InfDefaultInstall.exe .inf Execution

Flags Windows process executions of InfDefaultInstall.exe that include an .inf argument in the command line.

Windows PowerShell Module Creation With RemoteFXvGPUDisablement ModuleContents

Flags PowerShell module creation where ModuleContents includes Get-VMRemoteFXPhysicalVideoAdapter.

Windows PowerShell ModuleContents Set to Get-VMRemoteFXPhysicalVideoAdapter

Alerts on PowerShell module creation embedding Get-VMRemoteFXPhysicalVideoAdapter, a potential precursor to RemoteFXvGPUDisablement.exe abuse.

Windows Uninstall CrowdStrike Falcon Sensor via WindowsSensor.exe /uninstall /quiet

Flags Windows processes uninstalling CrowdStrike Falcon Sensor using WindowsSensor.exe with /uninstall and /quiet.

Windows Process: SyncAppvPublishingServer.exe Executes PowerShell via PowerShell-encoded command

Alerts when SyncAppvPublishingServer.exe is launched with a command-line pattern indicative of PowerShell code execution.

Windows Process Injection via Mavinject Using INJECTRUNNING Flag

Alerts on Windows process creation using Mavinject with /INJECTRUNNING, indicative of DLL injection into a running process.