Freelance Cyber Security Audit: Penetration Testing for Web, Mobile, and Network Systems

Listen to this Post

Cyber security audits and penetration testing are critical for identifying vulnerabilities in systems before malicious actors exploit them. This article covers key aspects of penetration testing, including web, mobile, internal/external systems, physical, and network intrusion testing.

You Should Know:

1. Web Application Penetration Testing

Web apps are common targets for attacks. Use these tools and commands to test for vulnerabilities:

  • OWASP ZAP (Zed Attack Proxy) – Automated scanner for web vulnerabilities.
    zap-cli quick-scan --self-contained --start-options '-config api.key=12345' http://example.com 
    
  • SQL Injection Test with SQLmap:
    sqlmap -u "http://example.com/login.php?user=1" --dbs 
    
  • XSS Testing with XSSer:
    xsser -u "http://example.com/search?q=test" --auto 
    

2. Mobile Application Penetration Testing

Android/iOS apps can leak data or have weak encryption.

  • MobSF (Mobile Security Framework) for static/dynamic analysis:
    docker run -it opensecurity/mobile-security-framework-mobsf 
    
  • ADB (Android Debug Bridge) for extracting APKs:
    adb pull /data/app/com.example.app/base.apk 
    

3. Internal & External Network Penetration Testing

  • Nmap for network scanning:
    nmap -sV -A -T4 192.168.1.0/24 
    
  • Metasploit Framework for exploitation:
    msfconsole 
    use exploit/multi/handler 
    set payload windows/meterpreter/reverse_tcp 
    exploit 
    

4. Physical Security Testing

  • BadUSB Attacks with Rubber Ducky:
    Ducky Script example: 
    DELAY 1000 
    GUI r 
    STRING cmd 
    ENTER 
    

5. Wireless Network Testing

  • Aircrack-ng for Wi-Fi cracking:
    airodump-ng wlan0mon 
    aireplay-ng --deauth 10 -a <AP_MAC> wlan0mon 
    

What Undercode Say:

A comprehensive security audit must include multiple layers of testing—web, mobile, network, and physical. Automation helps, but manual testing is irreplaceable for advanced threats. Always obtain legal permission before testing.

Expected Output:

  • A detailed penetration testing report with vulnerabilities and remediation steps.
  • Secured systems against SQLi, XSS, weak authentication, and misconfigurations.
  • Improved security posture through continuous testing.

Relevant URLs:

References:

Reported By: Koutora Anicet – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

Join Our Cyber World:

💬 Whatsapp | 💬 TelegramFeatured Image