COMPUTER BASED SECURITY AND MONITORING SYSTEM FOR FORENSIC EXPERTS
ABSTRACT
Computer forensics is the application of investigation and analysis techniques to gather and preserve evidence from a particular computing device in a way that is suitable for presentation in a court of law. The aim of the system is to design and implement a Computer Based Security and Monitoring System for Forensic Expert. In achieving this aim, the following specific objectives were set out as follows to develop an application software that will create platform for securing and monitoring of forensic activities and replace some extent of human role in cases of unavailability of job. The motivation that led to the implementation of the proposed system is that the manual forensics record keeping has resulted in many set lacks to the expected standard. Also, there is partial or total loss of file or documents and inefficiency of some members of staff due to laziness in searching of the files. The methodology adopted in this study is the structured system analysis and design methodology (SSADM) which is a technical approach for analyzing and designing an application or system by applying object throughout the software development process. The programming language used is HTML, CSS, JAVASCRIPT, PHP, SQL and JQUERY. The reason why web programming languages was used is because, it is platform independent and it is a web based application. This application when implemented will be able to monitor the activities of a computer user by taking screenshots of internet activities, process capture and capture the content of the index file which will help forensic expert with substantial evidence to prosecute cyber criminals. The expected result is a Computerized Forensic Expert Security and Monitoring System that will help forensic expert with substantial evidence to prosecute cyber criminals and capture, collect, analyze, preserve and present evidence of computer crime in an acceptable manner.
CHAPTER ONE
1.1 Introduction
Computer forensics is the application of investigation and analysis techniques to gather and preserve evidence from a particular computing device in a way that is suitable for presentation in a court of law. The goal of computer forensics is to perform a structured investigation while maintaining a documented chain of evidence to find out exactly what happened on a computer device and who was responsible for it. Computer forensics is the equivalent of surveying a crime scene (Borek, 2001). Computer Digital forensics or digital forensic science concerns evidences from computers that should be convincing and sufficiently reliable to stand up in court. Digital forensics is the science of locating; extracting and analysing types of data from different devices, which are interpreted by specialists in order to be used as legal evidence (Sivaprasad et al., 2012). Forensics investigators typically follow a standard set of procedures; after physically isolating the device in question to make sure it cannot be accidentally contaminated, investigators make a digital copy of the devices storage media.
As a prelude to other parts of this study, this chapter will discuss the background upon which this study was initiated, the statement of problems that led to this study, the Aim and Objectives of the study. Others are Significance of the study, Scope of work, Limitations of the Study and Definition of technical terms.
1.2 Background of Study
Computer Digital forensics or digital forensic science concerns evidences from computers that should be convincing and sufficiently reliable to stand up in court. Digital forensics is the science of locating; extracting and analysing types of data from different devices, which are interpreted by specialists in order to be used as legal evidence (Sivaprasad et al., 2012). Once the original media has been copied, it is locked in a safe of other secure facility to maintain its pristine condition. All the investigation is done on the digital copy. Investigators use a variety of techniques and proprietary software forensic applications to examine the copy, searching hidden folders and unallocated disk space for copies of deleted, encrypted, or damaged files. Any evidence found on the digital copy is carefully documented in a finding report and verified with the original in preparation for legal proceedings that involve discovery, depositions, or actual litigation. The digital evidence can be found in computer (hard disks or RAMs), cell phones, iPods, pen drives, digital cameras, CDs, DVDs, floppies, computer networks, the Internet etc (Vacca, 2005) or it can be hidden in pictures (Steganography), deleted files, formatted hard disks, deleted emails, encrypted files, chat transcripts, password protected files and so on.
The world is becoming a smaller place in which to live and work. A technological revolution in communications and information exchange has taken place within business, industry and homes. Most developed and developing countries are substantially more invested in information processing and Management than manufacturing goods, and this has affected their professional and personal lives. We bank and transfer money electronically and we are much more likely to receive an E-mail than a letter. It is estimated that the worldwide internet population is 349 million (Commerce Net Research Council 2000).
In this information technology age, some traditional crimes especially those concerning finance and commerce, continue to be upgraded technologically. Crimes associated with theft and manipulations of data are detected daily. Crimes of violence also are not immune to the effects of the information age. A serious and costly terrorist act could come from the internet instead of a truck bomb. The diary of a serial killer may be recorded on a floppy disk or hard disk drive rather than on paper in a notebook. Just as the workforce has gradually converted from manufacturing goods to processing information, criminal activity has to large extent also converted from physical dimension.
There calls a need for computer forensic experts and computer based monitoring and security system for easy capture of evidence of intruder who compromises a network or computer. This project dealt with the design and implementation of a computer based security and monitoring system for forensic experts, an ideal way for tracking the activities of an account user and also for recovering digital evidence of crime committed in a computer system.
Therefore, in Nigeria where the research was carried out, the activities that was conducted is to design and implement a Computer Based Security and Monitoring System for Forensic Expert.
1.3 Statement of Problems
Investigation revealed that the evolution of computer and the internet which has made the world a global village, so has criminals also taken advantage of this technological advancement to engage in different forms of cyber crime ranging from terrorism, internet fraud to the release of sophisticated viruses which is difficult to trace the perpetrators due to lack of sophisticated software that can retrieve information of such activities. This led to the design of a computer based security and monitoring system for forensic experts which will help in tracking the activities of internet users and for recovery of digital evidence of crime committed in a computer system. Manual forensics record keeping has resulted in many set lacks to the expected standard. The bottleneck encountered includes:
- Time wasted and resultants long quarries
- Partial or total loss of file or documents
- Under recording of criminal analysis
- Exposures of confidential matters
- Inefficiency of some members of staff due to laziness in searching of the files.
1.4 Aim and Objectives of Study
The aim of the system is to design and implement a Computer Based Security and Monitoring System for Forensic Expert. In achieving this aim, the following specific objectives were set out as follows to develop an application software that will:
- Capture, collect, analyze, preserve and present evidence of computer crime in an acceptable manner;
- Create platform for securing and monitoring of forensic activities;
- Replace some extent of human role in cases of unavailability of job; and
- Help forensic expert with substantial evidence to prosecute cyber criminals.
1.5 Significance of Study
This project on computerized Forensics record system is developed to carryout tedious work and activities performed by human beings, in which they end up misplacing and discarding some important files and case records. But if this (computerized crime record) is installed it will render remedy to this case.
This application when implemented will be able to monitor the activities of a computer user by taking screenshots of internet activities, process capture and capture the content of the index file which will help forensic expert with substantial evidence to prosecute cyber criminals.
This application when implemented will be able to monitor the activities of a computer user by taking screenshots of internet activities, process capture and capture the content of the index.dat file which will help forensic expert with substantial evidence to prosecute cyber criminals.
This study will be of immense benefit to other researchers who intend to know more on this study and can also be used by non-researchers to build more on their research work. This study contributes to knowledge and could serve as a guide for other study.
1.6 Scope of Study
The study focuses on the design and implementation of a Computer Based Security and Monitoring System for Forensic Expert. This project is designed to monitor the activities of computer users to investigate and fish out cyber criminals.
The project employed Web programming language in ensuring the design and implementation of a Computer Based Security and Monitoring System for Forensic Expert that will aid forensic experts in their investigations and prosecution of criminals.
1.7 Limitations of the Study
During the course of this study, many things militated against its completion, some of which are:
- Time Constraint: The time frame given to accomplish this project was very short due to school academic calendar and it was carried out under pressure which made the researcher not to implement some necessary features.
- Research material: availability of research material is a major setback to the scope of the study.
- Frequent power failure: This made the researcher append more money on fuel to ensure sustainable power.
- Financial Constraint: Insufficient fund tends to impede the efficiency of the researcher in sourcing for the relevant materials, literature or information and in the process of data collection (internet).
CHAPTER TWO
2.0 Literature Review
2.1 Introduction
The review of relevant literature is the main topic of this chapter. A literature review covers theoretical and methodological contributions to a certain issue in addition to the state of knowledge at the time of writing. It provides information about the state of the art in relation to the subject you are writing about. It examines the body of work on the chosen subject. The literature evaluation in this study comprises the …
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TABLE OF CONTENTSPRELIMINARY PAGES
- Title page
- Approval page
- Dedication
- Acknowledgement
- Table of Contents
- Abstract
INTRODUCTION
- 1.1 Introduction
- 1.2 Background of Study
- 1.3 Statement of Problems
- 1.4 Aim and Objectives of Study
- 1.5 Significance of Study
- 1.6 Scope of Study
- 1.7 Limitations of the Study
- 1.8 Definition of Terms
LITERATURE REVIEW
- 2.1 Introduction
- 2.2 Conceptual Review of Forensics Record System
- 2.3 Overview of Computers in Forensics
- 2.4 Types of Computer Based Police Investigation Systems
- 2.5 Process of a Standard Police Investigation
- 2.6 Advantages of Computer Forensic System
- 2.7 Disadvantages of Computer Forensic System
SYSTEM ANALYSIS AND DESIGN
- 3.1 Methodology Adopted
- 3.1.1 Problem Identification Using SSADM
- 3.2 Analysis of the Existing System
- 3.2.1 Dataflow of the Existing System
- 3.2.2 Disadvantages of the Existing System
- 3.2.3 Weakness of the existing System
- 3.3 Feasibility Study
- 3.3.1 Economic Feasibility
- 3.3.2 Technical Feasibility
- 3.3.3 Operational Feasibility
- 3.4 Analysis of the Proposed System
- 3.4.1 Data Flow Diagram of the Proposed System
- 3.4.2 Advantages of the Proposed System
- 3.4.3 Justification of the Proposed System
- 3.5 Functional Requirements
- 3.5.1 Use Case Diagram of the Admin / User Privileges
- 3.6 Data Requirements
- 3.7 High Level Model of the Proposed System
SYSTEM DESIGN AND IMPLEMENTATION
- 4.1 Objectives of the Design
- 4.2 Cohesion and Decomposition High level Model
- 4.3 Control Center / Overall Dataflow Diagram
- 4.3.1 Proposed System Operation Flowchart
- 4.4 System Specification and Design
- 4.4.1 Input and Output Specification
- 4.4.2 Database Specification and Design
- 4.4.3 Data Dictionary
- 4.5 Choice and Justification of Programming Language
- 4.6 Program Documentation
- 4.7 Implementation Techniques
- 4.7.1 System Testing
- 4.8 Programming Module Specification
- 4.8.1 Installation
- 4.8.2 Security Design Specification
- 4.8.3 System Architecture
- 4.9 Computer Hardware Minimum Requirement
- 4.10 Software Requirement
- 4.11 Personnel / User Training
- 4.12 File Maintenance Module
SUMMARY, CONCLUSION AND RECOMMENDATION
- 5.1 Introduction
- 5.2 Summary
- 5.3 Conclusion
- 5.4 Recommendation
REFERENCES
APPENDIX A - “SOURCE CODE”
APPENDIX B - “OBJECT PROGRAM”
Disclaimer for Complete Material Utilization
The displayed research work titled "Computer Based Security and Monitoring System for Forensic Experts" is stated as a research guideline towards accomplishing your assigned project / seminar research work. All the research materials on this website are ONLY for research purposes and should be used as a guideline in developing your research work. For no reason should you copy word for word as projectlist.com.ng will not be liable for any who copied the material. By ordering the complete research guideline, it signifies that you've accepted our terms of service.
PRELIMINARY PAGES
- Title page
- Approval page
- Dedication
- Acknowledgement
- Table of Contents
- Abstract
INTRODUCTION
- 1.1 Introduction
- 1.2 Background of Study
- 1.3 Statement of Problems
- 1.4 Aim and Objectives of Study
- 1.5 Significance of Study
- 1.6 Scope of Study
- 1.7 Limitations of the Study
- 1.8 Definition of Terms
LITERATURE REVIEW
- 2.1 Introduction
- 2.2 Conceptual Review of Forensics Record System
- 2.3 Overview of Computers in Forensics
- 2.4 Types of Computer Based Police Investigation Systems
- 2.5 Process of a Standard Police Investigation
- 2.6 Advantages of Computer Forensic System
- 2.7 Disadvantages of Computer Forensic System
SYSTEM ANALYSIS AND DESIGN
- 3.1 Methodology Adopted
- 3.1.1 Problem Identification Using SSADM
- 3.2 Analysis of the Existing System
- 3.2.1 Dataflow of the Existing System
- 3.2.2 Disadvantages of the Existing System
- 3.2.3 Weakness of the existing System
- 3.3 Feasibility Study
- 3.3.1 Economic Feasibility
- 3.3.2 Technical Feasibility
- 3.3.3 Operational Feasibility
- 3.4 Analysis of the Proposed System
- 3.4.1 Data Flow Diagram of the Proposed System
- 3.4.2 Advantages of the Proposed System
- 3.4.3 Justification of the Proposed System
- 3.5 Functional Requirements
- 3.5.1 Use Case Diagram of the Admin / User Privileges
- 3.6 Data Requirements
- 3.7 High Level Model of the Proposed System
SYSTEM DESIGN AND IMPLEMENTATION
- 4.1 Objectives of the Design
- 4.2 Cohesion and Decomposition High level Model
- 4.3 Control Center / Overall Dataflow Diagram
- 4.3.1 Proposed System Operation Flowchart
- 4.4 System Specification and Design
- 4.4.1 Input and Output Specification
- 4.4.2 Database Specification and Design
- 4.4.3 Data Dictionary
- 4.5 Choice and Justification of Programming Language
- 4.6 Program Documentation
- 4.7 Implementation Techniques
- 4.7.1 System Testing
- 4.8 Programming Module Specification
- 4.8.1 Installation
- 4.8.2 Security Design Specification
- 4.8.3 System Architecture
- 4.9 Computer Hardware Minimum Requirement
- 4.10 Software Requirement
- 4.11 Personnel / User Training
- 4.12 File Maintenance Module
SUMMARY, CONCLUSION AND RECOMMENDATION
- 5.1 Introduction
- 5.2 Summary
- 5.3 Conclusion
- 5.4 Recommendation
REFERENCES
APPENDIX A - “SOURCE CODE”
APPENDIX B - “OBJECT PROGRAM”
Disclaimer for Complete Material Utilization
The displayed research work titled "Computer Based Security and Monitoring System for Forensic Experts" is stated as a research guideline towards accomplishing your assigned project / seminar research work. All the research materials on this website are ONLY for research purposes and should be used as a guideline in developing your research work. For no reason should you copy word for word as projectlist.com.ng will not be liable for any who copied the material. By ordering the complete research guideline, it signifies that you've accepted our terms of service.
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