Evil-WinRM

The ultimate WinRM shell for hacking/pentesting

Description & Purpose

This shell is the ultimate WinRM shell for hacking/pentesting.

WinRM (Windows Remote Management) is the Microsoft implementation of WS-Management Protocol. A standard SOAP based protocol that allows hardware and operating systems from different vendors to interoperate. Microsoft included it in their Operating Systems in order to make life easier to system administrators.

This program can be used on any Microsoft Windows Servers with this feature enabled (usually at port 5985), of course only if you have credentials and permissions to use it. So we can say that it could be used in a post-exploitation hacking/pentesting phase. The purpose of this program is to provide nice and easy-to-use features for hacking. It can be used with legitimate purposes by system administrators as well but the most of its features are focused on hacking/pentesting stuff.

Features

Command History
WinRM command completion
Local files completion
Upload and download files
List remote machine services
Load Powershell scripts
Load in memory dll files bypassing some AVs
Load in memory C# (C Sharp) compiled exe files bypassing some AVs
Load x64 payloads generated with awesome donut technique
Colorization on output messages (can be disabled optionally)
SSL and certificates support
Pass-the-hash support

Help

Usage: evil-winrm -i IP -u USER [-s SCRIPTS_PATH] [-e EXES_PATH] [-P PORT] [-p PASS] [-H HASH] [-U URL] [-S] [-c PUBLIC_KEY_PATH ] [-k PRIVATE_KEY_PATH ]
    -S, --ssl                        Enable ssl
    -c, --pub-key PUBLIC_KEY_PATH    Local path to public key certificate
    -k, --priv-key PRIVATE_KEY_PATH  Local path to private key certificate
    -s, --scripts PS_SCRIPTS_PATH    Powershell scripts local path
    -e, --executables EXES_PATH      C# executables local path
    -i, --ip IP                      Remote host IP or hostname (required)
    -U, --url URL                    Remote url endpoint (default /wsman)
    -u, --user USER                  Username (required)
    -p, --password PASS              Password
    -H, --hash HASH                  NTLM hash
    -P, --port PORT                  Remote host port (default 5985)
    -V, --version                    Show version
    -h, --help                       Display this help message

Requirements

Ruby 2.3 or higher is needed. Some ruby gems are needed as well: winrm >=2.3.2, winrm-fs >=1.3.2, stringio >=0.0.2 and colorize >=0.8.1. Depending of your installation method (3 availables) the installation of them could be required to be done manually.

Installation & Quick Start (3 methods)

Method 1. Git clone and install dependencies on your system manually

Step 1. Install dependencies manually: ~$ sudo gem install winrm winrm-fs colorize stringio
Step 2. Clone the repo: git clone https://github.com/Hackplayers/evil-winrm.git
Step 3. Ready. Just launch it! ~$ cd evil-winrm && ruby evil-winrm.rb -i 192.168.1.100 -u Administrator -p 'MySuperSecr3tPass123!' -s '/home/foo/ps1_scripts/' -e '/home/foo/exe_files/'

Method 2. Using bundler (dependencies will not be installed on your system, just to use evil-winrm)

Step 1. Install bundler: gem install bundler:2.0.2
Step 2. Install dependencies with bundler: cd evil-winrm && bundle install --path vendor/bundle
Step 3. Launch it with bundler: bundle exec evil-winrm.rb -i 192.168.1.100 -u Administrator -p 'MySuperSecr3tPass123!' -s '/home/foo/ps1_scripts/' -e '/home/foo/exe_files/'

Method 3. Installation directly as ruby gem (dependencies will be installed automatically on your system)

Step 1. Install it (it will install automatically dependencies): gem install evil-winrm
Step 2. Ready. Just launch it! ~$ evil-winrm -i 192.168.1.100 -u Administrator -p 'MySuperSecr3tPass123!' -s '/home/foo/ps1_scripts/' -e '/home/foo/exe_files/'

Documentation

Clear text password

If you don't want to put the password in clear text, you can optionally avoid to set -p argument and the password will be prompted preventing to be shown.

Ipv6

To use IPv6, the address must be added to /etc/hosts. Just put the already set name of the host after -i argument instead of an IP address.

Basic commands

upload: local files can be auto-completed using tab key. It is recommended to use absolute path for destination to avoid errors. Otherwise you could get uncontrolled errors due Winrm-fs limitations.
- usage: upload local_path remote_absolute_path
download: It is recommended to use absolute paths to avoid errors. Otherwise you could get uncontrolled errors due Winrm-fs limitations.
- usage: download remote_absolute_path local_path

Note about paths (upload/download): If the file to download is in the initial remote dir, absolute path on first parameter can be avoided in order to use simple file name. Relative paths are not recommended to use and can cause errors on download/upload. Second argument (destination for upload/download) can be blank and in that case it will be uploaded/downloaded to current local dir or initial (landing dir once connected) remote dir.

services: list all services. No administrator permissions needed.
menu: load the Invoke-Binary and l04d3r-LoadDll functions that we will explain below. When a ps1 is loaded all its functions will be shown up.

Load powershell scripts

To load a ps1 file you just have to type the name (auto-completion usnig tab allowed). The scripts must be in the path set at -s argument. Type menu again and see the loaded functions.

Advanced commands

Invoke-Binary: allows exes compiled from c# to be executed in memory. The name can be auto-completed using tab key and allows up to 3 parameters. The executables must be in the path set at -e argument.
l04d3r-LoadDll: allows loading dll libraries in memory, it is equivalent to: [Reflection.Assembly]::Load([IO.File]::ReadAllBytes("pwn.dll"))

The dll file can be hosted by smb, http or locally. Once it is loaded type menu, then it is possible to autocomplete all functions.
Donut-Loader: allows to inject x64 payloads generated with awesome donut technique. No need to encode the payload.bin, just generate and inject!

You can use this donut-maker to generate the payload.bin if you don't use Windows. This script use a python module written by Marcello Salvati (byt3bl33d3r). It could be installed using pip:

pip3 install donut-shellcode

Extra features

To disable colors just modify on code this variable $colors_enabled. Set it to false: $colors_enabled = false

Changelog:

Changelog and project changes can be checked here: CHANGELOG.md

Credits:

Main author:

cybervaca

Collaborators, developers, documenters, testers and supporters:

Hat tip to:

Alamot for his original code.
3v4Si0N for his awesome dll loader.
WinRb All contributors of ruby library.
TheWover for his awesome donut tool.
byt3bl33d3r for his python library to create donut payloads.
Sh11td0wn for inspiration about new features.

Disclaimer & License

This script is licensed under LGPLv3+. Direct link to License.

Evil-WinRM should be used for authorized penetration testing and/or nonprofit educational purposes only. Any misuse of this software will not be the responsibility of the author or of any other collaborator. Use it at your own servers and/or with the server owner's permission.

nubix/evil-winrm