A generic Network forensic examination includes the following steps: Identification, preservation, collection, examination, analysis, presentation and Incident Response. Identification: recognizing and determining an incident based on network indicators. This step is significant since it has an impact in the following steps. Preservation: securing and isolating the state of physical and logical evidences from being altered,
This section shows where network forensic methods can be applied within the different network protocols or layers. Data-link and physical layer examined (Ethernet) Methods are achieved with eavesdropping bit streams on the Ethernet layer of the OSI model. This can be done using monitoring tools or sniffers such as Wireshark or Tcpdump, both of which
Network forensic investigators examine two primary sources: full-packet data capture, and log files from devices such as routers, proxy servers, and web servers—these files identify traffic patterns by capturing and storing source and destination IP addresses, TCP port, Domain Name Service (DNS) site names, and other information. Full-Packet Capture. The advantage of full-packet capture is that the content, and therefore
Forensic analysis of network data allows investigators to reconstruct network activity during a particular period of time. These techniques are commonly used to investigate individuals suspected of crimes and to reconstruct the sequence of events that took place during a network-based information security incident. There are many network forensic analysis tools you can use, several
Network forensics refers to investigations that obtain and analyze information about a network or network events. It is a specialized category within the more general field of digital forensics, which applies to all kinds of IT data investigations. Typically, network forensics refers to the specific network analysis that follows security attacks or other types of