{"id":74,"date":"2024-08-30T15:23:01","date_gmt":"2024-08-30T15:23:01","guid":{"rendered":"https:\/\/cybersecurityinfocus.com\/?p=74"},"modified":"2024-08-30T15:23:01","modified_gmt":"2024-08-30T15:23:01","slug":"the-role-of-network-forensics-in-identifying-threats","status":"publish","type":"post","link":"https:\/\/cybersecurityinfocus.com\/?p=74","title":{"rendered":"The Role of Network Forensics in Identifying Threats"},"content":{"rendered":"
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The outlook of cyber threats in this modern cyber warfare theater has changed a great deal. Annually, <\/span>60% businesses<\/span><\/a> drop victims to data breaches and cyber-attacks.<\/span>\u00a0<\/span><\/p>\n

Security teams intrinsically find themselves in a scenario whereby they lack visibility and control of the network traffic and are incidentally unable to detect and respond in real-time. To this regard, modern cybersecurity strategies now incorporate network forensics into their arsenal of defenses.<\/span>\u00a0<\/span><\/p>\n<\/div>\n<\/div>\n

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What is Network Forensics?<\/h2>\n<\/div>\n<\/div>\n
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Network Forensics is a fast easy process for capturing and analyzing network traffic, with the objective of information gathering, incident identification, and for legal evidence recovery purposes.<\/span>\u00a0<\/span><\/p>\n

Organizations could use the captured network traffic that was in the data packets to help in the discovery of activities and communications in relation to malicious events, such as cyber-attacks or data breaches<\/a>.<\/span>\u00a0<\/span><\/p>\n

This process is essential to incident comprehension, mitigation of risk, and prevention of future breaches.<\/span>\u00a0<\/span><\/p>\n<\/div>\n<\/div>\n

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Importance of Network Forensics in Cyber security<\/h2>\n<\/div>\n<\/div>\n
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Intrusion Detection<\/h3>\n

It detects intrusion and possible infiltrations by monitoring anomaly in network traffic.<\/p>\n<\/div>\n

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Evidence Gathering<\/h3>\n

Critical evidence admissible in the court of law in cases related to crimes about cyber, particularly in those situations where no other form of digital evidence might be at hand.<\/p>\n<\/div>\n

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Attack Vectors Analysis<\/h3>\n

All this information, derived from the analysis of network traffic, will be useful for the organization to know exactly how the attack happened, what vulnerabilities were used, and how to save the future from such attacks.<\/p>\n<\/div>\n

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Performance Monitoring<\/h3>\n

It helps in network performance optimization by finding the choke points and inefficient data flows.<\/p>\n<\/div>\n

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Incident Response<\/h3>\n

Network forensics enables incident response teams to understand the extent of an attack efficiently and effectively, so well-timed containment and recovery actions can be carried out.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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How Does Network Forensics Work?<\/h2>\n<\/div>\n<\/div>\n
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Network forensics<\/span><\/span> involves several key processes that ensure a thorough investigation of network activities. These processes are designed to gather and analyze data effectively while <\/span>maintaining<\/span> the integrity of the evidence.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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Processes Involved in Network Forensics<\/h3>\n<\/div>\n<\/div>\n
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1. Identification of Anomalies<\/h4>\n<\/div>\n<\/div>\n
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Network and application anomalies ranked second, <\/span>with 23 percent of organizations<\/span><\/a> experiencing such cyber-attacks, while system anomalies followed, with 20 percent last year.\u00a0<\/span>\u00a0<\/span><\/p>\n

The process of network forensics begins with identifying anomalous patterns in network traffic. Identifying unusual patterns in network traffic will involve monitoring for unauthorized access, unusual data transfers, or other suspicious activities indicative of a security incident.<\/span><\/p>\n<\/div>\n<\/div>\n

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2. Preservation of Evidence<\/h4>\n<\/div>\n<\/div>\n
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Once anomalous patterns are <\/span>identified<\/span>, the integrity of the evidence must be preserved. Evidence preservation involves copying relevant network data and logs to assure that they have been preserved in their original state. <\/span>Properly preserving forensic evidence is critical to maintain the continuity of evidence which is important to legal proceedings.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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3. Collection of Network Data<\/h3>\n<\/div>\n<\/div>\n
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Network forensics involves investigators obtaining data from other sources including routers, switches, and firewalls. The data collected may consist of packet captures, logs of network events, and other telemetry which could <\/span>assist<\/span> investigators in developing a picture of the network traffic during the event.<\/span><\/p>\n<\/div>\n<\/div>\n

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4. Examination of Network Traffic<\/h4>\n<\/div>\n<\/div>\n
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Once the data is collected, the data will need to be examined for specific events that were related to the <\/span><\/span>security incident<\/span><\/span>. In this step, investigators may recover file transfers, review communication patterns, and examine other attributes for indicators of compromise.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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5. Analysis and Interpretation<\/h4>\n<\/div>\n<\/div>\n
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Once the evidence is examined, the next step for forensic capability network involves analyzing the evidence to organize, interpret the evidence significance, and the attack methods used by the attackers, as reasonable as possible to <\/span>determine<\/span> the risk to the organization.<\/span><\/p>\n<\/div>\n<\/div>\n

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6. Presentation of Findings<\/h4>\n<\/div>\n<\/div>\n
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The outcome of the analysis must be documented and depicted in a format which is clear and concise; the documentation is imperative to convey the conclusions to others, including law enforcement or legal teams which may be useful in court.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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7. Incident Response and Follow-Up<\/h4>\n<\/div>\n<\/div>\n
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Finally, the analysis of forensic data gathered is <\/span>utilized<\/span> to inform the <\/span><\/span>incident response<\/span><\/span><\/a> process and decision-making for how to mitigate the immediate existing risk and prevent the compromise from happening again moving forward. Actions may include implementing security measures, revising policies or procedures, or resource training further training for personnel.\u202f<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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Network Forensics Analysis Tools and Techniques<\/h2>\n<\/div>\n<\/div>\n
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Network forensics embodies the procedures for monitoring and analyzing network traffic to gather information, detect intrusions, and collect legal evidence.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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Three Types of Network Forensic Tools<\/h3>\n<\/div>\n<\/div>\n
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1. Signature-Based Detection Tools<\/h4>\n<\/div>\n<\/div>\n
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Signature-based detection tools are, hence, rudimentary for network forensics. These tools <\/span>basically match<\/span> the network traffic against a database of known threat signatures and thus allow for the identification of familiar threats. While effective against known vulnerabilities, such tools may struggle against zero-day exploits and advanced persistent threats.<\/span><\/p>\n<\/div>\n<\/div>\n

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2. Protocol Analyzers & Packet sniffers <\/h4>\n<\/div>\n<\/div>\n
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These are essential tools for capturing and then analyzing data packets flowing over a network. Cybersecurity professionals make use of packet forensic tools like <\/span>Wireshark to sniff network traffic in real-time, which will give them insight into the network protocols working and can further detect potentially suspicious activities. The tools are essential in <\/span><\/span>actively monitoring<\/span><\/span> a network and investigating incidents.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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3. Flow Analyzers<\/h4>\n<\/div>\n<\/div>\n
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Flow analyzers are designed to analyze traffic patterns and flow data. They provide bandwidth usage information and performance data of applications, thus <\/span>assisting<\/span> in the detection of suspicious network security threats<\/a>. This is done by looking at the flow data and being able to find anomalies to back up an organization\u2019s response to an incident<\/span><\/span>.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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Advanced Network Forensics Tools<\/h2>\n<\/div>\n<\/div>\n
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Advanced <\/span><\/span>network forensics<\/span><\/span> tools offer comprehensive features, including automated packet capture, deep packet inspection, and advanced analytics. These tools are designed to handle large volumes of data and <\/span>provide<\/span> a holistic view of <\/span><\/span>network activity<\/span><\/span>, making them essential for thorough investigations and incident response.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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Hands-on Network Forensics: Techniques and Best Practices<\/h3>\n<\/div>\n<\/div>\n
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Hands-on techniques and best practices must be applied while carrying out effective network forensics so that comprehensive investigations can happen with robust network security<\/a> measures.<\/span><\/span>\u00a0<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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\n\t\t\t\t\t\t\t\t\t\tRegular Updates and Maintenance: Network forensic tools should be updated at all times to perform effective threat detection. Regular updates enhance their capabilities to stay effective against evolving threats.<\/span><\/p>\n

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How to reduced incident response time significantly. <\/p>\n

How Improved monitoring of email and internet traffic is done. <\/p>\n

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Five Network Forensics Challenges<\/h2>\n<\/div>\n<\/div>\n
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While a powerful tool, network traffic forensics faces challenges that can hinder its effectiveness. Understanding these obstacles is crucial for organizations to develop robust network forensic capabilities and ensure successful incident response and investigation.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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1. Data Volume and Storage<\/h4>\n<\/div>\n<\/div>\n
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Probably, the biggest challenge in network forensics lies in the huge volume of data produced by modern networks. Network traffic is through the roof, mainly due to the growing number of devices, applications, and users.\u00a0<\/span>\u00a0<\/span><\/p>\n

Storing and managing these volumes of data is not easy. Therefore, organizations have to balance between complete retention of data and their capability concerning storage space and cost.<\/span>\u00a0<\/span><\/p>\n<\/div>\n<\/div>\n

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2. Encryption <\/h4>\n<\/div>\n<\/div>\n
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The wide range in adoption of encryption protocols, including TLS and SSL, is a challenge to network forensics. Investigators can find themselves in a situation whereby they have an extensive amount of trouble analyzing the content of network communications if there is no access to decryption keys.<\/span>\u00a0<\/span><\/p>\n

With more applications and services going to end-to-end encryption, network forensic tools have to rapidly change to deal effectively with encrypted traffic.<\/span>\u00a0<\/span><\/p>\n<\/div>\n<\/div>\n

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3. Data Integrity<\/h4>\n<\/div>\n<\/div>\n
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It is <\/span>very important<\/span> for the integrity of the collected network data to be admissible as legal evidence. Tampering or corruption of data either partially or totally may destroy its credibility and affect the decision of an ongoing investigation. Chain-of-custody maintenance, secure storage methodologies, and strong access control are necessary for data integrity.<\/span><\/p>\n<\/div>\n<\/div>\n

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4. Privacy Concerns<\/h4>\n<\/div>\n<\/div>\n
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This is quite a common challenge encountered in network forensics: the data being captured and analyzed contains sensitive or private information. In such cases, it becomes very hard to maintain a balance between the requirements of end-to-end network forensic analysis and individual privacy.<\/span>\u00a0<\/span><\/p>\n

Organizations are legally liability-bound to take necessary care for relevant data protection legislation and put in place appropriate safeguards to ensure privacy related to individuals whose data might get captured during network forensic investigations.<\/span><\/p>\n<\/div>\n<\/div>\n

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5. Resource Constraints<\/h4>\n<\/div>\n<\/div>\n
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Network forensics can be resource-intensive; after all, it calls for special tools and skilled personnel, not to mention high computing power.\u00a0<\/span>\u00a0<\/span><\/p>\n

For organizations with limited budgets or technical expertise, it would be quite challenging to effectively implement and then maintain network forensic capabilities. Ways to overcome these challenges include careful allocation of resources, <\/span>cloud-based solutions<\/span>, and proper training of security teams.<\/span><\/p>\n<\/div>\n<\/div>\n

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Network Forensic Examination: Step-by-Step Guide<\/h2>\n<\/div>\n<\/div>\n
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Conducting a thorough <\/span><\/span>network forensic examination<\/span><\/span> involves several key steps:<\/span><\/span><\/p>\n<\/div>\n<\/div>\n

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Identification<\/h3>\n

This involves the identification of relevant sources of network data in relation to the scope of the investigation.<\/p>\n<\/div>\n

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Collection<\/h3>\n

Network traffic data, logs, and other forms of relevant evidence should be collected using appropriate tools and techniques.<\/p>\n<\/div>\n

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Preservation<\/h3>\n

The integrity of the collected data has to be preserved with a complete, proper chain of custody.<\/p>\n<\/div>\n

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Examination<\/h3>\n

This involves analysis of the collected data to reveal the presence of intrusion, malware, or unauthorized activities.<\/p>\n<\/div>\n

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Analysis<\/h3>\n

Arrival at conclusions by examination of the case and timeline generation.<\/p>\n<\/div>\n

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Reporting<\/h3>\n

Findings documented, and the evidence prepared for legal proceedings or internal investigations.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Advanced Network Forensics: Next Generation<\/h2>\n<\/div>\n<\/div>\n
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As network forensics continues to take its growth lead, advanced techniques and tools are being reached by organizations to make strides in their capabilities:<\/span>\u00a0<\/span><\/p>\n

Machine Learning and Artificial Intelligence:<\/strong> Machine learning algorithms on top of network traffic analysis could identify complex patterns and possible anomalies that might get missed by traditional methods.<\/span> Automated Incident Response:<\/strong> Network forensics with automated incident response<\/a> systems enables faster detection, containment, and recovery from security incidents.<\/span> Threat Intelligence Integration: <\/strong>Network forensic information merged with external threat intelligence constitutes relevant context and identifies known threats or attack patterns.<\/span> Cloud-Based Forensics:<\/strong> Network forensics can be performed over <\/span>cloud platforms<\/span> for scalable storage and processing power. It provides access to advanced analytics tools.<\/span>\t\t\t\t\t\t<\/p><\/div>\n<\/div>\n

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Conclusion: Future of Network Forensics<\/h2>\n<\/div>\n<\/div>\n
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With the ever-evolving cyber threats and complexities of the modern-day network it is paramount to adopt cutting-edge techniques and industry partners, to be better equipped to stay at the forefront of such integrated applications of network forensics.<\/span>\u00a0<\/span><\/p>\n

Fidelis Security offers an integrated NDR solution<\/a> with highly applied threat detection, real-time visibility, automated investigation, incident response, and compliance assurance. Fidelis enables organizations to elevate their security posture, lower risk, assure compliance better, and optimize efficiency through their products.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Frequently Ask Questions<\/h2>\n<\/div>\n<\/div>\n
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What is the difference between network forensics and cyber forensics?<\/h3>\n<\/div>\n
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Cyber forensics or digital forensics is the process of the collection and analysis of digital evidence from computers, phones, and networks. It aims to reveal the source, nature, scope, and damage caused by cyberattacks.<\/span>\u00a0<\/span><\/p>\n

Network forensics is a subset of cyber forensics, in which the emphasis is put on the research of network traffic and data packets that are communicated over a network. In turn, this conclusion emphasizes the analysis of data in the movement rather than data that is already stored on devices.<\/span><\/p>\n<\/div><\/div>\n

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What are the methods of network forensics?<\/h3>\n<\/div>\n
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In the performance of any network forensic examination, the following is always the main process:<\/span>\u00a0<\/span><\/p>\n

\u202f\u202f\u202f\u202f\u202f\u202fIdentification:<\/strong> Identifying what and the extent of data to be collected for investigation.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fPreservation:<\/strong> Ensuring that the integrity of the collected evidence has been retained and ensuring that the chain of custody had been properly maintained.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fCollection:<\/strong> Gathering network traffic data relevant to the case, logs, and other pieces of evidence.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fExamination:<\/strong> Analyzing the collected data to locate any signs of intrusion, malware, or unauthorized activity.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fAnalysis:<\/strong> Drawing conclusions from the investigation and re-creating a timeline of events to determine the cause.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fReporting:<\/strong> Writing up findings and preparing materials to be used in court, if necessary.<\/span><\/p><\/div>\n<\/div>\n

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Who uses network forensics?<\/h3>\n<\/div>\n
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Network forensics is used by various stakeholders:<\/span>\u00a0<\/span><\/p>\n

\u202f\u202f\u202f\u202f\u202f\u202fLaw enforcement agencies for cybercrime, data breaches, and online fraud investigations.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fIncident response teams in which the network attacks and containment and recovery are referred to be the issues to know.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fCybersecurity teams to track network traffic for signs of internal malicious activity.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fNetwork administrators to solve performance issues and thus maximize network efficiency.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fResearchers to strength techniques for detecting and preventing cyber threats.<\/span><\/p><\/div>\n<\/div>\n

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How does network forensics differ from computer forensics?<\/h3>\n<\/div>\n
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While both are branches of digital forensics, there are some key differences:<\/span>\u00a0<\/span><\/p>\n

\u202f\u202f\u202f\u202f\u202f\u202fComputer forensics centers on analyzing data found on individual PCs and other gadgets, frequently in the offline mode. Network forensics deals with real-time data being sent over networks.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fComputer forensics is the more frequent option when it comes to fraud, theft, and employee misconduct. Network forensics is usually used in network intrusion and data theft cases.<\/span>\u202f\u202f\u202f\u202f\u202f\u202fComputer network forensics can be performed with standard forensic tools, since the information is static. Network forensics needs special tools to capture and analyze live network traffic.<\/span><\/p><\/div>\n<\/div>\n

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Can network forensics be automated?<\/h3>\n<\/div>\n
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There can be some automation in areas of network forensics, like the following:\u00a0<\/span>\u00a0<\/span><\/p>\n

\u202f\u202f\u202f\u202f\u202f\u202fPacket capturing and storage:<\/strong> They can automatically capture data on network traffic for storing purposes to present them later for analysis.\u00a0<\/span>\u202f\u202f\u202f\u202f\u202f\u202fThreat detection:<\/strong> Machine learning algorithms will be trained to be able to identify in an automated fashion indications of malicious activity within the network traffic.\u00a0<\/span>\u202f\u202f\u202f\u202f\u202f\u202fIncident response:<\/strong> Automation at speed in containing and recovering from network packet attacks through predefined playbooks.<\/span><\/p><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

The post The Role of Network Forensics in Identifying Threats<\/a> appeared first on Fidelis Security<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

The outlook of cyber threats in this modern cyber warfare theater has changed a great deal. Annually, 60% businesses drop victims to data breaches and cyber-attacks.\u00a0 Security teams intrinsically find themselves in a scenario whereby they lack visibility and control of the network traffic and are incidentally unable to detect and respond in real-time. To […]<\/p>\n","protected":false},"author":1,"featured_media":77,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-74","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=\/wp\/v2\/posts\/74"}],"collection":[{"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=74"}],"version-history":[{"count":0,"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=\/wp\/v2\/posts\/74\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=\/wp\/v2\/media\/77"}],"wp:attachment":[{"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=74"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=74"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cybersecurityinfocus.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=74"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}