jlee-r7 / ruby_smb

A packet parsing and manipulation library for the SMB2 protocol

Smb2

A packet parsing and manipulation library for the SMB2 protocol.

See Microsoft's [MS-SMB2]

It supports authentication via NTLM using the ruby ntlm gem

Installation

This gem has not yet been released, but when it is, do this:

Add this line to your application's Gemfile:

gem 'smb2'

And then execute:

$ bundle

Or install it yourself as:

$ gem install smb2

Usage

Using the Client class

sock = TCPSocket.new("192.168.100.140", 445)
c = Smb2::Client.new(
  socket: sock,
  username:"administrator",
  password:"P@ssword1",
  domain:"asdfasdf"
)
c.negotiate
c.authenticate

Making packets manually

sock = TCPSocket.new("192.168.100.140", 445)
neg = Smb2::Packet::NegotiateRequest.new(
  # This is necessary until I can figure out how to set a default for
  # `rest` fields
  dialects: "\x02\x02".force_encoding("binary"),
)
nbss = [neg.length].pack("N")
sock.write(nbss + neg.to_s)
# Grab NBSS size
size = sock.read(4).unpack("N").first
data = sock.read(size)
neg_response = Smb2::Packet::NegotiateResponse.new(data)

Contributing

1. Fork it ( https://github.com/jlee-r7/smb2/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request