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Capturing PSEXEC's command line output

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I'm attempting to capture the output from the command line tool PSEXEC. I'm using AutoIT to run an instance of PSEXEC against a remote PC to audit Local Admins in my environment using net.exe (C:\Windows\System32> net localgroup administrators). However the usual trick I use to capture command line output does not appear to work well with PSEXEC, as the bottom portion of the output is missing from the return. Any ideas or recommendations are greatly appreciated.  


Here is what I'm working with: 

;This script will read from a list of hosts and report who has local admin privileges on the machine

Global $fileName = @ScriptDir & '\test.txt' ;hostlist, one host per line


;Read list of hosts
Func readHostList()
    Local $file = FileOpen($fileName, 0)

    While 1
        $line = FileReadLine($file)
        If @error = -1 Then ExitLoop
        ConsoleWrite($line & @CRLF)


;run PSEXEC to list local admins
Func getLocalAdmins($remotePC)
    Local $testFile = @ScriptDir &'\test234.txt'
    FileOpen($testFile, 1)
    Local $psexec = 'psexec \\' & $remotePC & ' net localgroup administrators'
    FileWriteLine($testFile, _RunCmd($psexec) )

;Used to return CLI output
Func _RunCmd($sCommand)
    Local $nPid = Run(@Comspec & " /c" & $sCommand, @SystemDir, @SW_Hide, 8), $sRet = ""
    If @Error then Return "ERROR:" & @ERROR
    While 1
        $sRet &= StdoutRead($nPID)
        If @error Or (Not ProcessExists ($nPid)) Then ExitLoop

    Return $sRet


## If i manually run the command on the remote PC via PSEXEC I will get the following output: 

PsExec v2.11 - Execute processes remotely
Copyright (C) 2001-2014 Mark Russinovich
Sysinternals - www.sysinternals.com

Starting net on PCNAME... on PCNAME...
net exited on PCNAME with error code 0.

Alias name     administrators
Domain\Domain Admins
Comment        Administrators have complete and unrestricted access to the computer/domain
The command completed successfully.


## The returned output from running the above script is as follows:

PsExec v2.11 - Execute processes remotely
Copyright (C) 2001-2014 Mark Russinovich
Sysinternals - www.sysinternals.com

Alias name     administrators
Connecting to PCNAME...

Starting PSEXESVC service on PCNAME...

Connecting with PsExec service on PCName...

Starting net on PCNAME..

net exited on PCNAME with error code 0.


**Note to test this script PSEXEC must be in the system dir or the path in the script changed 
PSEXEC tool: https://docs.microsoft.com/en-us/sysinternals/downloads/psexec

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What if  you pipe your PSEXEC command to a text file and then parse the text file?

Local $psexec = 'psexec \\' & $remotePC & ' net localgroup administrators > C:\temp\textout.txt'

Who lied and told you life would EVER be fair?

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