In conclusion, I understand in digital forensics when copying a bit by bit of a hard drive the examiner must use a write blocker, either software or hardware to avoid possibility of accidentally damaging the evidence contents. After imaging is completed the forensic examiner will have a generated hash value of the bit by bit copy of the evidence hard drive. This hash value (dіgitаl fіngerprіnt) is important to digital forensic because it shows the integrity of all evidence is maintained and to avoid tampering or spoliation. So my question is this, how can we say the integrity of the client's forensic image evidence is not tainted when we know for a fact that the client's computer was filled with malware infections (Trojan)? In my opinion by the time the examiner started investigating the client's hard drive all the …show more content…
or How do you prove that machine/user is really guilty in the first place? Almost every computer these days is connected to the Internet or at least to some internal network. As anyone in the field knows, a remote hacker can execute arbitrary code on such a computer in a variety of ways. The hacker can add, remove, or modify files, change the date on files, and do everything with that computer that the local user can, and without the local user’s knowledge. These are many issues of digital forensics today, especially if we are dealing with Trojan malware that exist in the hard drive. Trojan malwares are designed to be anti-digital forensic and this is where the investigators must embrace a necessary shift in thinking. In fact, one of the reasons for the success of cyber criminals today has been the limited and unimaginative approach by computer forensic professionals to gather
Other evidence located within the grave consisted of a generic watch, two cigarette butts, a button, a washer and a shell casing. All of these could be analysed for finger prints and DNA. The cigarette butts would also show a serial number indicating the brand (shown in Figure 3), which can be useful if it is found a victim or offender smokes a particular type of cigarette.
From a trial strategy point of view, you always start with the piece(s) of evidence you believe are most damaging to the client's case and work backwards looking for an exploitable flaw in the search and seizure procedure that would make that or those item(s) inadmissible. The further back in the series of events you can argue a fatal flaw, the more likely that the evidence and any additional materials which flowed from that particular item of evidence will be excluded. This is the practical analysis of all the times we see or hear of law enforcement arguing that there was some technical item which drew their attention and suspicion and justifies their hunch that criminal activity is afoot.
When it comes to identical twins we have come to learn that twin identical or not will not have the same fingerprint. Fingerprints are unique and are made to identify a person. So even when you clone humans or other primates I believe that the Friction ridge pattern will be similar but not exactly the same. I believe that in the process of the cloning process something will cause the fingerprints to come out different. Because cloning is dangerous there has yet to be a human cloning, but there have been cloning of monkeys and according to the data even though the monkey was cloned the fingerprint still isn’t the same.
It is the computer forensics job to look through all of the computer files, even the deleted ones, to see if there are any incriminating files that would prove them guilty. Even reporting them to the jury is one of the jobs that a computer forensic person might have. Not only does this community work closely with eh police force, they can also work within the FBI or a company that uses computers in their business like Apple. Th...
The crime scene was then examined and a list of possible pieces of evidence were recorded down. Including a sketch of the crime scene, Anna Garcia’s house, with the locations of all of the pieces of evidence. All of these items listed help develop a theory about Anna’s death. This theory then helped establish a list of possible suspects. The person of interest list included a number of four individuals and each one had a relation with Anna. The list included (1) Alex Garcia- Anna’s ex-husband. They had an unpleasant divorce the year before and in a result Alex quickly remarried a much younger woman, while Anna remained single. Alex and his newlywed wife are expecting to have a baby soon. Although, Alex may be suffering from a few financial
Forensics investigations that require the analyzation and processing of digital evidence can be influenced both positively and negatively by a number of outside sources. In this paper, we will explore how physical security plays a role in forensics investigations activities. We will start by examining how physical and environmental security might impact the forensics investigation process. Next, we will discuss the role that physical and logical security zones play in supporting effective forensics activities. We will illustrate how centralized and decentralized physical and environmental security affects the forensics professional’s approach toward the investigation. Lastly, we will evaluate some potential areas of risk related to the physical security of our case study organization, Widget Factory, identified in Attachment 1.
The last type of evidence I will discuss are documents. Everyone has a different handwriting and different characteristics that make it unique. Computers are also unique in the way they type and print out things. Document examiners can look over these and establish the similarities in the handwriting and computer forensic specialists can extract logs and other data from most devices.
There is a wide range of Linux forensic software available. There are single tools like file carvers, or there are comprehensive collections of tools. In the following, some of the most popular Linux forensic tools are described. The focus is put on The Sleuth Kit because it is organized according to the different filesystem layers. This provides an interesting insight on how forensics is done on filesystems.
The criminal justice system has changed a lot since the good old days of the Wild West when pretty much anything was legal. Criminals were dealt with in any fashion the law enforcement saw fit. The science of catching criminals has evolved since these days. We are better at catching criminals than ever and we owe this advancement to forensic science. The development of forensic science has given us the important techniques of fingerprinting and DNA analysis. We can use these techniques to catch criminals, prove people's innocence, and keep track of inmates after they have been paroled. There are many different ways of solving crimes using forensic evidence. One of these ways is using blood spatter analysis; this is where the distribution and pattern of bloodstains is studied to find the nature of the event that caused the blood spatter. Many things go into the determination of the cause including: the effects of various types of physical forces on blood, the interaction between blood and the surfaces on which it falls, the location of the person shedding the blood, the location and actions of the assailant, and the movement of them both during the incident. Another common type of forensic evidence is trace evidence. This is commonly recovered from any number of items at a crime scene. These items can include carpet fibers, clothing fibers, or hair found in or around the crime scene. Hairs recovered from crime scenes can be used as an important source of DNA. Examination of material recovered from a victim's or suspect's clothing can allow association to be made between the victim and other people, places, or things involved in the investigation. DNA analysis is the most important part of forensic science. DNA evidence can come in many forms at the crime scene. Some of these forms include hair; bodily fluids recovered at the crime scene or on the victim's body, skin under the victim's fingernails, blood, and many others. This DNA can be the basis of someone's guilt or innocence; it has decided many cases in the twentieth century. As the times continue to change and the criminals get smarter we will always need to find new ways to catch them. Forensic science is the most advanced method yet, but is only the beginning. As the field of science grows so will the abilities of the
There are different types of computer crimes that many people become victims of every day. Computer crime is any crime that involves a computer and a network. The computer may have been used in the commission of a crime, or it may be the target ("Computer Crime: Chapter 2: What Are the Crimes? ", n.d.) - " Crimes such as data diddling, pump and dump, social engineering and spoofing are computer crimes. Even though these crimes are difficult due to privacy issues, the new technology has made investigations and prosecutions well organized and effective.
3. Start up the computer forensic machine. 4. Before making an image, run a hash value (MD5 or SHA) on the evidence and document everything. 5.
Computer forensics is the process of using the latest knowledge of science and technology with computer sciences to collect, analyze and present proofs to the criminal or civil courts. Network administrator and security staff administer and manage networks and information systems should have complete knowledge of computer forensics. The meaning of the word "forensics" is "to bring to the court". Forensics is the process which deals in finding evidence and recovering the data. The evidence includes many forms such as finger prints, DNA test or complete files on computer hard drives etc.
What did they do ? Before we talk about it any further, we have to know some definitions that we use in digital forensics and digital evidence, not only two of them but the others too. This chapter will explain about it . Before we talk about it any further, we have to know the definition of what we are talking about. In the introduction we already know what digital forensic and digital evidence shortly are. In this chapter, we will more explore what they are, and some state that we found when we search about digital forensic and digital evidence. Computer forensics is a broad field and applied to the handling of crimes related to information technology. The goal of computer forensic is to securing and analyzing digital
The problem with operating systems used instrumentally for digital forensics is that current digital forensic techniques do not fully utilize the existing forensic capabilities of an operating system. For example, live data acquisition requires the acquisition of volatile storage on RAM before the computer is shut down. There are currently no forensically sound methods of acquiring an image of a system’s memory without attaching specialized hardware (Kornblum & Libster). Inserting an external device may change the state of the system such as altering the SYSTEM hive of the registry on a Windows machine, w...
Presently, because the importance of digital forensics it has its own field of computer forensic expertise, training and certification.