Forum Discussion

Mike_Smith's avatar
Mike_Smith
5 years ago

Powershell Download a Collector

I've been working on a Powershell method to download a collector. I'm to the point where I've got content, but no matter how I write the file ($content > "lm.exe", $content | Out-File "lm.exe" (tri...
  • Mike_Moniz's avatar
    Mike_Moniz
    5 years ago

    It seems to work for me if I use the -OutFile parameter with Invoke-RestMethod but didn't figure out having it assigned to a variable that is then outputted. I also changed the content type to binary instead of json since you are not looking for json data, but seems LM will send binary data anyway. 

    Invoke-RestMethod -Uri $url -Method $Verb -Header $headers -ContentType "application/binary" -OutFile "lm-out.exe" -Verbose

     

Mike_Moniz's avatar
Mike_Moniz
Icon for Professor rankProfessor
5 years ago

So PowerShell is converting it to a String causing encoding problems. If you switch to Invoke-WebRequest the Content property will be a proper Byte array which you can save to file. See https://www.reddit.com/r/PowerShell/comments/719oip/downloading_a_file_via_http_directly_to_a_variable/dn9snst/ . Note that the pipeline version was extremely slow on my system but this version was quick. 

$Response = Invoke-WebRequest -Uri $url -Method $Verb -Header $headers -ContentType "application/binary" -Verbose
$File = [System.IO.FileStream]::new('lm-filestream.exe', [System.IO.FileMode]::Create)
$File.write($Response.Content, 0, $Response.Content.Length)
$File.close()