Learning Network Forensics by Samir Datt

By Samir Datt

The booklet begins with an creation to the area of community forensics and investigations. you are going to start via getting an figuring out of ways to assemble either actual and digital proof, intercepting and reading community information, instant info packets, investigating intrusions, and so forth. you'll extra discover the expertise, instruments, and investigating tools utilizing malware forensics, community tunneling, and behaviors. by means of the tip of the ebook, you'll achieve a whole knowing of ways to effectively shut a case.

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There will always be a very strong demand for the Sherlocks of the net. Professionals who can detect, collect, collate, analyze, and investigate will find themselves on the must hire list of most large-scale corporates. Let's get started with the underlying principle of forensics of any sort. [ 10 ] Chapter 1 Locard's exchange principle No study of digital investigations can be considered well begun without an understanding of the underpinning of the science. Locard's exchange principle is the foundation on which scientific investigation methodologies are built.

The source and destination address fields have 32 bits allocated to encode their data. • Various additional information, such as the total packet length in bytes, is encoded in 16 bytes in the remainder of the header. Normally, the application layer sends the data that is to be transmitted to the transport layer. The transport layer adds a header and sends it to the Internet layer. The Internet layer adds its own header to this and sends it to the network layer for physical transmission in the form of an IP datagram.

The phishing mail may carry a payload in the form of an attachment (for example, a Trojan) or have a link that leads to a similar result. In this case, according to Locard's exchange principle, the two entities interacting would be the affected computer and the computer sending out the phish. Some of the evidence in this case would be the e-mail itself, Trojan horse/malware/keylogger, stolen passwords, changed passwords, attempts to cover tracks, and so on. The backdoor, once discovered, could reveal a lot of details and the IP addresses of devices that control it or receive the stolen data would also count as evidence.

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