Authors : Wan Hazimah binti Wan Ismail, Herny Ramadhani Mohd Husny, Mohammad Noramin Bin Basri and Norhaiza Ya Abdullah
Abstract: Mobile devices are becoming a more popular tool to use and have changed the way we live in our daily lives. Mobile devices are being used for many activities such as social networking, conducting business transactions and others. Therefore, it become one of the most popular medium of communication in the world. Besides of these good and advanced capabilities of mobile technology, it can also be used to perform various activities that may be of malicious intent or criminal in nature. Due to this, mobile devices can be a valuable source of digital evidence, since, it can accumulate a sizeable amount of information, if the device is involved in a crime. The Android smartphone has been used to store an enormous amount of data that can be stored locally or remotely and enable a forensic analyst to acquire the data and evidence as for collecting this valuable information with regard to the investigation. In this study, we present a new mobile forensic application based on Android smartphone that able to extract and recover the data. File carving technique has been used to recover corrupted or deleted files from the mobile devices. File carving is the technique that can help the investigator to retrieve and acquire the data from unallocated space. This application performs as a digital forensic tool in order to guide basic forensic analysis on Android by focusing on extraction and analysis of JPEG image files from either digital cameras or smart phones. JPEG is the most widespread loss compression formats used by digital cameras or smart phones. The result of this application is where it able to analyze the content of the memory card or secure digital card by extracting JPEG image files and visualize the image as soon as image are extracted. Then, it reveals the EXIF metadata information as well as translating some of the metadata content into GPS tag if available. It is very significant to have this application as it can help the forensic investigator for investigating the evidence on Android applications, since, its mobility and convenience to users.
Wan Hazimah binti Wan Ismail, Herny Ramadhani Mohd Husny, Mohammad Noramin Bin Basri and Norhaiza Ya Abdullah, 2019. Mobile Forensic: JPEG Recovery with EXIF Metadata. Journal of Engineering and Applied Sciences, 14: 7490-7494.