psgen

psgen is a powershell payload generator tool for hacking. It can be used to generate, minify, and encode the powershell payload (e.g., reverse-shell, download-file, runas) to copyable text format.

NOTE : This project creates for helping me to generate the copyable powershell payload and run it on window cmd shell.

Installation

Manual

The latest zip ball can be downloaded HERE. Or perform the following commands.

git clone https://github.com/bongtrop/psgen.git
cd psgen
pip install -r requirements.txt
python setup.py install

PIP

Easily install with the following command.

pip install git+https://github.com/bongtrop/psgen.git

Usage

For getting list of options, please perform:

psgen -h

Example

For usage example, I generate and exeute hello-world payload:

$ psgen -l

Powershell Payloads
===================
╒══════════════════════╤═══════════════╤══════════════════════════════════════════╕
│ Name                 │ Author        │ Description                              │
╞══════════════════════╪═══════════════╪══════════════════════════════════════════╡
│ check-dir-permission │ BHARAT SUNEJA │ Check directory permission               │
├──────────────────────┼───────────────┼──────────────────────────────────────────┤
│ example              │ Jusmistic     │ Print a word [COUNT] time(s)             │
├──────────────────────┼───────────────┼──────────────────────────────────────────┤
│ download-file        │ Jusmistic     │ Download file from url                   │
├──────────────────────┼───────────────┼──────────────────────────────────────────┤
│ http-eval            │ bongtrop      │ Download and execute ps1 script from URL │
├──────────────────────┼───────────────┼──────────────────────────────────────────┤
│ find-file            │ bongtrop      │ Find files from their filename           │
├──────────────────────┼───────────────┼──────────────────────────────────────────┤
│ runas                │ bongtrop      │ Run a progrom as another user            │
├──────────────────────┼───────────────┼──────────────────────────────────────────┤
│ find-file-content    │ bongtrop      │ Find files from their content            │
├──────────────────────┼───────────────┼──────────────────────────────────────────┤
│ reverse-shell        │ @nikhil_mitt  │ Spawn Reverse shell                      │
╘══════════════════════╧═══════════════╧══════════════════════════════════════════╛

$ psgen example -s

Payload Detail
==============
Payload Name: example
Payload Author: Jusmistic
Payload Description: Print a word [COUNT] time(s)
Payload Options:
  - word => 'The word that you want to print'
  - count => 'Times you want to print the word'

$ psgen example "word=Hello World\!" count=5

Payload Detail
==============
Payload Name: example
Payload Author: Jusmistic
Payload Description: Print a word [COUNT] time(s)
Payload Options: word='Hello World!', count='5', 

Payload Output
==============
powershell.exe -E RgBvAHIAKAAkAGEAPQAwADsAIAAkAGEAIAAtAGwAdAAgADUAOwAgACQAYQArACsAKQB7AFcAcgBpAHQAZQAtAEgAbwBzAHQAIAAiAEgAZQBsAGwAbwAgAFcAbwByAGwAZAAhACIAOwB9AA==

$ # Using Linux powershell (pwsh) to test the generated 
$ pwsh -E RgBvAHIAKAAkAGEAPQAwADsAIAAkAGEAIAAtAGwAdAAgADUAOwAgACQAYQArACsAKQB7AFcAcgBpAHQAZQAtAEgAbwBzAHQAIAAiAEgAZQBsAGwAbwAgAFcAbwByAGwAZAAhACIAOwB9AA==
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!

Dev

For developing the powershell payload, the metadata must be set. And Jinja2 syntax can be used in the powershell script as follows:

File: payload/example.ps1

##########
Name: example
Author: Jusmistic
Description: Print a word [COUNT] time(s)
Options:
    word: "The word that you want to print"
    count: "Times you want to print the word"
##########

For ($i=0; $i -lt {{ count }}; $i++) {
    Write-Host "{{ word }}";
}

The psgen tool also loads payloads in the home directory as ~/.psgen/payload. Therefore, you can put your payload there (e.g., ~/.psgen/payload/shutdown.ps1).

Please note that due to powershell minifier module all powershell command in the payload must end with ; character.