Created
April 29, 2022 14:48
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A PowerShell Function that generates a nerdy output that can be run to reveal an e-mail address or other strings.
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| function New-NerdSignature { | |
| param( | |
| [Parameter(Mandatory)] | |
| [string] | |
| $EmailAddress, | |
| [Parameter()] | |
| [switch] | |
| $AsBase64Command | |
| ) | |
| $Raw = ($EmailAddress.ToCharArray() | ForEach-Object { ([int]$_ - 42) -as [string] }) # -join '' | |
| $NewRaw = $Raw | |
| $Raw.Where{ $PSitem.length -lt 2 }.ForEach{ | |
| $Index = $NewRaw.IndexOf($_) | |
| $NewRaw[$Index] = "0$_" | |
| } | |
| $MyString = $NewRaw -join '' | |
| $EmailLength = $EmailAddress.Length - 1 | |
| $Signature = "[string]::Concat((0..$EmailLength|%{[char][int](42+('$MyString').substring((`$_*2),2))}))" | |
| if ($AsBase64Command) { | |
| $Bytes = [System.Text.Encoding]::Unicode.GetBytes($Signature) | |
| $Base64String = [Convert]::ToBase64String($Bytes) | |
| $Signature = 'powershell.exe -noprofile -encodedcommand {0}' -f $Base64String | |
| } | |
| Write-Output $Signature | |
| } |
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