In Exotic Mountain Tour Service Company partnership with superior bicycle and to identify the customer requirement. Through this analysis EMTS Company publish advertisement for its new product. Inappropriately, Bob Aspen employee of EMTS Company has stealing property of the new marketing information and retailing to another bicycle contender. Now this company in danger position and necessity to protect the advertising material. Now the manager of EMTS Company identified that the USB drive on the cabin of Bob. The task is to identify that drive contain information about EMTS or superior bicycle. The using of web server manager collect some exciting data that is web filter is activated during web based email is received. The web filter interfere uncompleted email that lead to Bob Aspen has tied up in this action.
The main objective is to identify the information contain in USB drive and who do this activity. It is determine by according to the manager idea that is wed filter. To rectify the problem and maintain the status of the company is another objective and then to recovery the data if it is possible. By using of email traffic travelling we have to detect the doubtful attachment and determine who send and receive the email.
It is a tool to investigative directly the digital broadcasting and after that various freeware which means usage at no economic cost and other branded tool were developed to investigate deprived of any change in media. In traditional tool are only used in computer but now used in mobile also. The available tools in the market Win hex, ProDiscover Basic, and Hex Workshop.
DFS:
The method are used to derive the scientific tools, they are collection, validation, analysis, identification and presentation. The digital source are most important for gathering the evidence.
Digital Forensics Science:
The DFS activities are naturally investigated by the following Process are given below:
Three types of the DFS Analysis are given below:
Computer are mainly used to refer the Media. Media is the major parts of the Digital Forensics Science. Media analysis is the stored medium, it could be focused on the flash Memory and RAM. Media Analysis is also called as the network Analysis. Media data are analyzed to check the reliability. Identity theft is the crime activity which is done using media. Types of data acquisition raw format, proprietary format, advanced forensic format. Snapback Data Arrest, NTFI safe back, DIBS USA RAID these are the other data acquisition tool.
Taking a systematic Approach
In computer forensic first make an initial assessment about the type of care you are investing. Determine a general step you need to follow during investigation. Determine the approach to the case. Create a detailed evidence collection form and create a detailed check list. Determine the software you need .Identify the risk and list the number of problems you expect. Try to minimize the risk .Test the design information which collected from the digital forensics tools are tested and analyzed. Recover the digital evidence. Recover deleted files and damaged files. Investigate the data you recover from the digital forensic tools. Complete the case report. Write a detailed report what you found.
You need the following items
Evidence collection form must contains number of the case, investigator name , investigation organization ,investigator personal details, Nature of case ,where the evidence was collected, Evidence description , vendor name and details , Model number of case and serial number, Evidence recovery tools used, data and time of evidence collection .
ProDiscover basic is a digital forensic tools provided by Technology pathways. ProDiscover basic is used to acquire, analyze and investigate data from several different file system. Before starting investigation you need to create tour work folder. Create two folders named Bop and bicycles. Connect the USB drive to your computer. Copy the folder into USB drive .Now delete those files.
Installing ProDiscover basic editio
ProDiscover Basic tool used to acquires an image of the USB drive. When it’s completed, it displays a message to check the log file created during the acquisition. This log file contains extra and additional information if errors were identified during the data acquisition. ProDiscover also creates an SHA1 and MD5 hash output file. In digital forensic you need to recover data using tools like ProDiscover.
Entering the keyword in search dialogue box
You need to select the Disk/Image you want to search in,
Using this activity first forensics data acquisition is completed. Next, we have to learn how to locate Data in an acquisition. Then Start ProDiscover Basic, as you did in the previous activity.
If you want to create a new case file then, click File, click New Project from the menu.
ProDiscover basic find the deleted file list. Deleted files are show with red color
After analysing the evidance ,youneed to find the answer for the below questions
This the report obtained during investication.
This is the basic structure of computer forensic lab
Computer forensic lab structure
Evidence collected during Investigation. A typical inexpensive USB external connector
Report contaisns detailed information of the incident and check the accuracy.Report clearly say how the data is gathering the data and analysis report.report contains all information which is necessary to explain conclusion. Report contains rough draft and we need to revising the rough draft. Organizing the report. Report contains all the evidance which is saved in a separate folders and need to be product that document. Computer forensic security is needed. First need to develop policy and procedure development.then we need to do evidence assesment it’s the key componet.its done on server, email , worksation and web history. After evidence collection we need to do evidence examination retrieving, coping, storing the evidence. After that we need to document the file. Document contains all the actions related to specific case should be stored in a secure place.
Investicating Organisation: Exotic Mountain Tour Service (EMTS)
Investigator: Major at EMTS
Nature of the case: conducting side business by releasing information about advertisement.
Location of the evidence: Bop’s cabin
Type of evidence: USB drive and hard disk.
Operating system: Microsoft Windows 8.1.
Known disk format: FAT16.
Location of evidence: One USB drive and hard disk recovered from the employee’s assigned
Work station.
Conclusion
Using digital forensic technology the hidden information are recovered. Digital Forensic mainly used for the purpose of data recovery. Major role of the Digital forensics is to investigation and analysis. Steganography tools and techniques are mainly used for the data hiding process. This tool is used to recover the hidden data or information from other file. We are using the two forensic tool. Hex editor and pro discover tool are mainly used to recover the encrypted data. These the tools are user friendly, it can be easily access to recover the data easily. The tool fetch the data converted into the hex decimal data, that data should be shifting using the above tool. Finally generated the original plain text. This tools are based on the source code. The pro discover basics tools are used to recover deleted and damaged information.
References
Bashinski, J. Review of: Techniques of Crime Scene Investigation, 7th edition, and Techniques of Crime Scene Investigation Interactive Training CD-ROM. Journal Of Forensic Sciences, 50(1), 1-1. doi: 10.1520/jfs2004351
Casey, E. (2007). Attacks against forensic analysis. Digital Investigation, 4(3-4), 105-106. Doi: 10.1016/j.diin.2008.01.001
Dudley-Gough, N. (2006). Digital Forensic Certification Board. Digital Investigation, 3(1), 7-8. doi: 10.1016/j.diin.2006.01.005
Forensic Evidence and Crime Scene Investigation. (2013). Journal Of Forensic Investigation, 01(02). Doi: 10.13188/2330-0396.1000004
Gabbay, E. (1998). Crime investigation. London: E. & J. Gabbay.
Hosmer, C. (2006). Discovering Hidden Evidence. Journal Of Digital Forensic Practice, 1(1), 47-56. doi: 10.1080/15567280500541447
Kanellis, P. (2006). Digital crime and forensic science in cyberspace. Hershey PA: Idea Group Pub.
Mistry, D. (2016). PLOUGHING IN RESOURCES: The investigation of farm attacks. South African Crime Quarterly, (6). Doi: 10.17159/2413-3108/2003/v0i6a1057
National Academy Press. (1996). the evaluation of forensic DNA evidence. Washington, D.C.
Nove, P. (1999). Fraud Investigation and Prosecution — the Way Forward. Journal Of Financial Crime, 6(4), 370-372. doi: 10.1108/eb025912.
Vacca, J. (2005). Computer forensics. Hingham, Mass.: Charles River Media.
Casey, E. (2007). Attacks against forensic analysis. Digital Investigation, 4(3-4), 105-106. doi: 10.1016/j.diin.2008.01.001
Chung, H., Park, J., Lee, S., & Kang, C. (2012). Digital forensic investigation of cloud storage services. Digital Investigation, 9(2), 81-95. doi: 10.1016/j.diin.2012.05.015
Deslauriers-Varin, N., & Beauregard, E. (2014). Consistency in crime site selection: An investigation of crime sites used by serial sex offenders across crime series. Journal Of Criminal Justice, 42(2), 123-133. doi: 10.1016/j.jcrimjus.2013.09.005
Roussev, V. (2011). An evaluation of forensic similarity hashes. Digital Investigation, 8, S34-S41. doi: 10.1016/j.diin.2011.05.005
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