Scanning Systems and Network in Cyber Security

            
 

            

        

          






  
What do you mean by Scanning Systems and Network?


Scanning
  in cybersecurity refers to the process of examining systems and networks for vulnerabilities, weaknesses, or potential threats. It involves using specialized tools and techniques to gather information about the target environment.

 
  
Types of Scans

  

  
    
    
  • Vulnerability Scanning: This focuses on identifying weaknesses in systems and applications that could be exploited by attackers. It involves checking for missing patches, outdated software, weak passwords, and other vulnerabilities.
    • 
    
  • Network Scanning: This focuses on examining the network infrastructure to identify active devices, open ports, and services running on them. It helps to create a network map and identify potential entry points for attackers.
    • 
  


  
Tools used for Scanning Systems and Network

  

  

    

    Tool Name
    Type of Scan
    Description
    

    

    Nmap
    Network Scanning, Port Scanning, Vulnerability Scanning
    Open-source network scanner for discovering hosts and services on a network. Used for network mapping, port scanning, and basic vulnerability detection.
    

    

    Nikto
    Web Application/Server Vulnerability Scanning
    Open-source web server scanner for checking web servers for potential vulnerabilities, outdated software, server configuration issues, and other security risks.
    

    

    

      Metasploit
      Introduction to Metasploit Vulnerability Scanning, Penetration Testing
      Advanced penetration testing framework with vulnerability scanning capabilities, exploit development, and post-exploitation modules.
    

    

      Burp Suite
      Web Application Scanning
      Comprehensive web application security testing platform for identifying vulnerabilities in web applications.
    

    

    Nessus
    Vulnerability Scanning
    Commercial vulnerability scanner for identifying vulnerabilities in systems and applications. Offers a comprehensive vulnerability database and reporting features.
    

    

    OpenVAS
    Vulnerability Scanning
    Open-source vulnerability assessment framework, combining vulnerability scanning, vulnerability management, and compliance checking.
    

    

    Qualys
    Vulnerability Scanning, Network Scanning
    Cloud-based vulnerability management platform offering vulnerability scanning, compliance checking, and asset management.
    

    

    



Monitoring Network and Systems Scanning


Monitoring network and systems scanning activities is crucial to ensure security, compliance, and performance. Here are some key methods:



Log Monitoring


    

  • Network devices: Examine logs from routers, switches, and firewalls for suspicious scanning activity.
    • 

  • System logs: Review system logs for unusual scanning attempts or access patterns.
    • 

  • Security tools: Analyze logs from intrusion detection systems (IDS), intrusion prevention systems (IPS), and vulnerability scanners.
    • 




Network Traffic Analysis


    

  • Packet capture: Utilize tools like Wireshark to capture and analyze network traffic for signs of scanning.
    • 

  • Flow analysis: Employ NetFlow or sFlow to monitor network traffic patterns and identify anomalies.
    • 




Security Information and Event Management (SIEM)


    

  • Centralized logging: Collect and correlate logs from various sources.
    • 

  • Threat detection: Use SIEM to identify suspicious scanning activities and generate alerts.
    • 

  • Incident response: Leverage SIEM for faster incident response and investigation.
    • 




Vulnerability Management Systems (VMS)


    

  • Scan history: Track scanning activities and their outcomes.
    • 

  • Remediation tracking: Monitor progress in addressing identified vulnerabilities.
    • 

  • Compliance reporting: Generate reports on vulnerability status and remediation efforts.
    • 




Intrusion Detection and Prevention Systems (IDPS)


    

  • Real-time monitoring: Detect and prevent scanning attacks in progress.
    • 

  • Signature-based detection: Identify known scanning techniques.
    • 

  • Anomaly-based detection: Detect unusual scanning patterns.
    • 




Additional Considerations


    

  • Baseline establishment: Establish normal network and system behavior to identify deviations.
    • 

  • Regular review: Conduct regular reviews of logs and scan reports.
    • 

  • Staff training: Educate staff about scanning activities and potential threats.
    • 

  • Incident response plan: Develop a plan to respond to detected scanning incidents.
    • 




Disclaimer


The content provided on this page is for educational purposes only. It is intended to demonstrate the vulnerabilities of computer systems and networks and to promote ethical hacking practices. Any unauthorized use of the information or tools presented here is strictly prohibited and may violate applicable laws.



By accessing and using this information, you agree to the following:


    
  
  • No Malicious Use: You will not use the information or tools to harm others, damage property, or violate any laws.
    • 
  
  • Ethical Use: You will use the information and tools responsibly and ethically, respecting the privacy and security of others.
    • 
  
  • Legal Compliance: You will comply with all applicable laws and regulations regarding hacking and cybersecurity.
    • 




It is important to note that hacking systems without proper authorization is illegal and unethical. If you have concerns about the security of your own systems, please consult with a qualified security professional.