searchforfile.ps1

# Define the path to start searching and the checksum to match
$path = "C:\Path\To\Directory"
$expectedChecksum = "your_expected_checksum_here"

# Function to calculate the checksum of a file
function Get-FileChecksum {
    param (
        [string]$filePath
    )
    $hashAlgorithm = [System.Security.Cryptography.HashAlgorithm]::Create("SHA256")
    $fileStream = [System.IO.File]::OpenRead($filePath)
    $checksum = $hashAlgorithm.ComputeHash($fileStream)
    $fileStream.Close()
    return [BitConverter]::ToString($checksum) -replace "-", ""
}

# Iterate through each file in the directory and its subdirectories
Get-ChildItem -Path $path -Recurse -File | ForEach-Object {
    $file = $_.FullName
    $checksum = Get-FileChecksum -filePath $file
    if ($checksum -eq $expectedChecksum) {
        Write-Output "Match found: $file"
    }
}