Computer Forensic Investigation Basics

2007 ◽  
pp. 29-44
Keyword(s):  
Forensic Investigation ◽  
Computer Forensic

scholarly journals Forensic analysis of video steganography tools

2015 ◽  
Author(s):  
Thomas Sloan ◽  
Julio Hernandez-Castro
Keyword(s):  
State Of The Art ◽  
Freedom Of Speech ◽  
Forensic Analysis ◽  
Forensic Investigation ◽  
Video Steganography ◽  
The Past ◽  
Current State ◽  
Hidden Data ◽  
Computer Forensic ◽  
Privacy And Anonymity

Steganography is the art and science of concealing information in such a way that only the sender and intended recipient of a message should be aware of its presence. Digital steganography has been used in the past on a variety of media including executable files, audio, text, games and, notably, images. Additionally, there is increasing research interest towards the use of video as a media for steganography, due to its pervasive nature and diverse embedding capabilities. In this work, we examine the embedding algorithms and other security characteristics of several video steganography tools. We show how all feature basic and severe security weaknesses. This is potentially a very serious threat to the security, privacy and anonymity of their users. It is important to highlight that most steganography users have perfectly legal and ethical reasons to employ it. Some common scenarios would include citizens in oppressive regimes whose freedom of speech is compromised, people trying to avoid massive surveillance or censorship, political activists, whistle blowers, journalists, etc. As a result of our findings, we strongly recommend to cease any use of these tools, and to remove any contents that may have been hidden, and any carriers stored, exchanged and/or uploaded online. For many of these tools, carrier files will be trivial to detect, potentially compromising any hidden data and the parties involved in the communication. We finish this work by presenting our steganalytic results, that highlight a very poor current state of the art in practical video steganography tools. There is unfortunately a complete lack of secure and publicly available tools, and even commercial tools offer very poor security. We therefore encourage the steganography community to work towards the development of more secure and accessible video steganography tools, and make them available for the general public. The results presented in this work can also be seen as a useful resource for forensic examiners to determine the existence of any video steganography materials over the course of a computer forensic investigation.

scholarly journals RESEARCH ON COMPUTER EQUIPMENT AND SOFTWARE PRODUCTS IN INVESTIGATION OF CRIMES RELATED TO ILLEGAL TRAFFICKING OF DRUGS, PSYCHOTROPIC SUBSTANCES OR THEIR ANALOGUES

2021 ◽  
Vol 22 (2) ◽  
Author(s):  
M. Zelena
Keyword(s):  
Drug Trafficking ◽  
Information Technologies ◽  
The Internet ◽  
Web Browsers ◽  
Forensic Investigation ◽  
Software Products ◽  
Psychotropic Substances ◽  
Modern Information ◽  
Computer Forensic ◽  
Narcotic Drugs

This article outlines current issues of research on computer traces in the investigation of crimes at the stage of pre-trial investigation related to illegal trafficking of narcotic drugs, psychotropic substances or their analogues. The main ways of conducting drug trafficking in Ukraine using modern information technologies, that is, using computer technology (mostly mobile devices, personal portable computers) and software products (programs for communicating by means of calls and messages through the Internet, Web browsers, etc.) on the World Wide Web are analyzed. Based on the analysis of research and publications of scientists as well as on the basis of empirical research during computer forensic investigations connected with investigation of illegal distribution of narcotic drugs, methods of illicit goods distribution on the Internet along with methods for investigating computer technologies, which directly relate to drug trafficking using modern information technologies, has been considered. Types of data that can be extracted using specialized software in laboratories of computer research during computer forensic investigation, and which, in turn, can function as factual data and is the evidence of commission of crimes related to drug trafficking, psychotropic substances or their analogues are considered, namely, we are talking about such data as: information from messenger programs, web browsers, text messages, as well as from user files (including graphic, audio and video files); In addition, guiding questions that can be addressed to a forensic expert while computer forensic investigation in criminal investigations related to illegal production, manufacture, purchase, storage, transportation, transfer, sale of narcotic drugs, psychotropic substances or their analogues are suggested.

scholarly journals Steganalysis Bukti Digital pada Media Storage Menggunakan Metode GCFIM

2020 ◽  
Vol 5 (2) ◽  
pp. 96
Author(s):  
Muh Hajar Akbar ◽  
Sunardi Sunardi ◽  
Imam Riadi
Keyword(s):  
Digital Media ◽  
Forensic Investigation ◽  
Hide Information ◽  
Media Storage ◽  
Computer Forensic

Steganography is an anti-forensic technique that allows a criminal to hide information in other messages, so that during an examination it will be difficult to obtain evidence of the crime information. Therefore we need a technique to detect hidden messages in the data. This technique is known as steganalysis. Steganalysis is an anti-steganography science whose main purpose is to study the hiding characteristics of data on digital media and detect the existence of secret messages that are hidden using steganography techniques. The purpose of this study is to apply steganalysis techniques to detect the presence of messages that are hidden in other messages by using the forensic method, namely Generic Computer Forensic Investigation Model (GCFIM). In this study, the process of inserting steganographic messages using the Hiderman application, while the steganalysis process uses the StegSpy application. The results obtained in this study were the process of steganalysis using the help of the StegSpy application proved to be successful in detecting the presence of hidden messages in the five files that were scanned by steganographic messages.

scholarly journals Computer Forensic Investigation on Hard Drive Data Recovery: A Review Study

2016 ◽  
Vol 18 (05) ◽  
pp. 39-42
Author(s):  
Anmol bansal ◽  
Aastha Agrawal ◽  
Mahipal Singh Sankhla ◽  
Dr. Rajeev Kumar
Keyword(s):  
Data Recovery ◽  
Forensic Investigation ◽  
Hard Drive ◽  
Review Study ◽  
Computer Forensic

scholarly journals Forensic analysis of video steganography tools

2015 ◽  
Author(s):  
Thomas Sloan ◽  
Julio Hernandez-Castro
Keyword(s):  
State Of The Art ◽  
Freedom Of Speech ◽  
Forensic Analysis ◽  
Forensic Investigation ◽  
Video Steganography ◽  
The Past ◽  
Current State ◽  
Hidden Data ◽  
Computer Forensic ◽  
Privacy And Anonymity

Steganography is the art and science of concealing information in such a way that only the sender and intended recipient of a message should be aware of its presence. Digital steganography has been used in the past on a variety of media including executable files, audio, text, games and, notably, images. Additionally, there is increasing research interest towards the use of video as a media for steganography, due to its pervasive nature and diverse embedding capabilities. In this work, we examine the embedding algorithms and other security characteristics of several video steganography tools. We show how all feature basic and severe security weaknesses. This is potentially a very serious threat to the security, privacy and anonymity of their users. It is important to highlight that most steganography users have perfectly legal and ethical reasons to employ it. Some common scenarios would include citizens in oppressive regimes whose freedom of speech is compromised, people trying to avoid massive surveillance or censorship, political activists, whistle blowers, journalists, etc. As a result of our findings, we strongly recommend to cease any use of these tools, and to remove any contents that may have been hidden, and any carriers stored, exchanged and/or uploaded online. For many of these tools, carrier files will be trivial to detect, potentially compromising any hidden data and the parties involved in the communication. We finish this work by presenting our steganalytic results, that highlight a very poor current state of the art in practical video steganography tools. There is unfortunately a complete lack of secure and publicly available tools, and even commercial tools offer very poor security. We therefore encourage the steganography community to work towards the development of more secure and accessible video steganography tools, and make them available for the general public. The results presented in this work can also be seen as a useful resource for forensic examiners to determine the existence of any video steganography materials over the course of a computer forensic investigation.

scholarly journals The Use of Special Knowledge by the Parties and Their Representatives in Cyber Crime Investigations

2017 ◽  
Vol 12 (1) ◽  
pp. 30-37
Author(s):  
A. E. Galinskaya
Keyword(s):  
Cyber Crime ◽  
Forensic Investigation ◽  
Special Knowledge ◽  
Integrated Approaches ◽  
Forensic Investigations ◽  
Computer Forensic

The paper looks at computer forensic investigations in terms of the actions of the defense when such services need to be requested and provided in the course of a cyber crime inquiry; special considerations regarding requests submitted by the court or investigator; expert errors and their prevention; the use of procedural and non-procedural forms of special knowledge; problems relating to integrated approaches to forensic investigation.

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