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June 09, ; Accepted Date: August 17, ; Published Date: M Aditya, G Laxmikant, M. J Inform Tech Softw Eng 3: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The purpose of this paper is to provide a simplified methodology to extract information stored in the internal memory of phone like chat logs, contact history, email history and user login password of a user using a Yahoo Messenger and Yahoo Mail application App on an Android Phone.

This will help us classify the fore-mentioned artifacts as per their forensic importance to a forensic investigator depending upon the nature of the digital crime being analyzed. The 1mobile yahoo dating of smartphones into the market has opened up a whole new scope of possibilities on how a mobile phone can be used by a user.

The modern day smartphones are capable of strongly competing with computers in terms of the functionality and features that they can provide. Some of these features include email support, instant messengers, interactive games, GPS navigation, music player, document viewers and readers. The feature which we intend to primarily focus on in this paper is Yahoo instant messenger applications and Yahoo mail client application that can be freely downloaded and installed 1mobile yahoo dating Android Smartphone.

Instant messenger applications are those applications that support instant messaging communication in a bidirectional manner at real time speeds between users who are logged in to the 1mobile yahoo dating. The more recent instant messengers not only provide text messaging but also audio and video communication at real-time.

Instant messengers on smartphones however require the user to be logged on using a unique username and a password. Once logged in to the messenger using a 1mobile yahoo dating username and password, the user can then communicate via text, audio or video with 1mobile yahoo dating who is added to their contact list and is logged on to the messenger at that instant.

Similar to messenger application, an email client allows a logged in user to send or receive "1mobile yahoo dating" on the smartphone. During the research, experiments were conducted on Android phones for discovering the objects of potential evidentiary value such as chat history, contact lists, user login name, password, email history associated with the Yahoo instant messenger application [ 1 ] and email clients installed on the smart phone.

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The Yahoo mail client application was downloaded from the Google Play Store and installed onto the phone with Android Version 2. However, we found the password stored in plain text "1mobile yahoo dating" which was easily readable. This forensically relevant information may prove to be very vital in proving a crime or providing a lead to the investigators to further investigate a digital crime and 1mobile yahoo dating establish the occurrence of a crime.

Using a forensically approved method to perform file system extraction of Android test devices. These artifacts are usually stored in.

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This evidentiary 1mobile yahoo dating may prove to be very crucial during investigations of any criminal case. The aforementioned objects may help us recreate a scenario that may have occurred at the crime.

Further investigation of such objects may provide valuable leads that affect the verdict of a case. However these evidentiary objects need to be extracted and analyzed in a forensically sound manner to be help admissible in court of law. The integrity of the data 1mobile yahoo dating not be compromised with under any circumstances. With this intention, the tests and experiments conducted in this paper 1mobile yahoo dating been performed following the guidelines established by NIST [ 2 ].

Efforts have been taken to ensure that a realistic crime scenario is replicated and the investigation is performed in a reliable manner.

Similar to a real time crime scenario, a suspect or victim may have installed Android applications namely Yahoo Messenger version 1. The mobiles used may be rooted or unrooted. Considering all these circumstances, we designed our tests accordingly. A mobile phone was specially rooted [ 5 ] for these experiments while keeping others unrooted.

A secure workstation devoid of any form of malware was configured and setup. Details of the workstation are as follows:. This setup was disconnected from 1mobile yahoo dating form of network to ensure utmost security from vulnerabilities caused by networks.

The experiments were conducted keeping the predefined settings of the devices intact. The internal memory configurations such as cache size were left unaltered.

Hash values were also generated prior to experiments. Hash values [ 6 ] play very important role in order to submit evidence 1mobile yahoo dating court of "1mobile yahoo dating." Hash Values calculated for all the phones are given in Table 1. Figure 1 shows the Mobile phones and equipment used for 1mobile yahoo dating and experiments.

Scenario of rooted smart phones: The following phone was rooted in order to perform the experiments:. Rooting an Android device is a methodology by which we gain root privileges of a device. Acquiring root access of a device allows the user to gain elevated privileges thereby allowing the user to access permissions and rights that are by default not available to the user of unrooted mobile.

The main purpose of rooting in our test scenario is to secure access to root folder i. The 1mobile yahoo dating can then be directly copied using freely available tools namely Root Explorer for 1mobile yahoo dating device and Android Commander for desktop PC. Acquisition process through Android Commander is later described in this paper.

Scenario of un-rooted smart phones: Following Unrooted phones were taken in-order to perform tests and experiments:. Unrooted Android phones restrict the access to root files and folders residing in the internal memory of the phone.

To extract the data from those folders without rooting the phone, mobile data extraction device UFED from Cellebrite was used. However, FileSystem extractions were carried out here for manual analysis of data extracted from both phones. The major difference of an unrooted Android phones compared to rooted phones is the unavailability of root access. This disallows accessibility to the root folder present on the internal memory of the device.

Therefore such devices compulsorily require complete filesystem extractions in order to acquire folders that are otherwise unavailable without root access. The potential "1mobile yahoo dating" related to yahoo can then be accessed by analyzing the output of filesystem extraction tool used via UFED Classic Ultimate. Thereafter we can investigate the potential evidence left behind by the Yahoo Messenger and Yahoo Mail application.

The following operations and activities were performed using both sets of mobiles phones i. This stage involves acquisition of filesystem located on the internal memory of each smartphone. The unrooted smartphones used in the testing procedure require acquisition [ 9 ] using hardware based devices such as UFED Classic Ultimate.

This acquisition is performed in a forensically approved manner to ensure that evidences discovered can be admitted in the court. This approach also compulsorily requires enabling USB Debugging [ 10 ] from settings menu on each device. The acquisition of the rooted devices requires no physical hardware device for extraction and could be performed using freely available tools like Oxygen Forensics and MobilEdit. However, the drawback of such an approach is admissibility in court [ 2 ] as it involves rooting an Android phone.

The "1mobile yahoo dating" of rooting a device involves certain write operations on the internal memory of the device thereby affecting its integrity. After acquisition of filesystem dumps of each of the test devices, a thorough forensic examination of the files and folders extracted was performed. The 1mobile yahoo dating of databases associated with Yahoo Messenger and Yahoo Mail apps was determined and evidentiary data was extracted and analyzed using forensically admissible techniques.

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The manual examination and analysis of databases so found, helped us acquire potential evidences i. Instant messaging chat logs, user login names, passwords ,mails sent and received related to Yahoo messenger and Yahoo mail Android applications installed on the test phones. First stage of this experiment involved installation of Yahoo Messenger and Yahoo Mail Client applications on all the test devices.

A common set of activities to be performed were decided upon and conducted on each device. The criteria behind deciding these activities 1mobile yahoo dating to ensure that the activities could replicate a real time scenario and help provide data 1mobile yahoo dating might prove to be crucial as per a digital forensic experts perspective. The activities performed on 1mobile yahoo dating Yahoo Messenger application and 1mobile yahoo dating mail application 1mobile yahoo dating each of the test devices are:.

Table 2 describes the activities "1mobile yahoo dating." After thoroughly performing the above mentioned activities, a file system acquisition of each device was acquired using different approaches. The approaches implemented to obtain the required data have been described later in the paper.

A third party tool called SuperOneClick [ 11 ] was installed on the forensic workstation. The Root Device button is clicked upon to begin the rooting of the device. This takes approximately ten minutes to complete followed by a device reboot. After rebooting the device, 1mobile yahoo dating SuperUser application is automatically installed on the device which means root privileges for the device have been acquired and the user 1mobile yahoo dating now a root user.

Acquisition of rooted phone: As mentioned earlier, file system acquisition on a rooted phone requires no additional hardware based extraction devices. A third party free application like Android commander will allow the user to view the root directory on a rooted device and support pulling and pushing of directories within the internal memory of the mobile device.

Since our primary focus is on extraction potential evidentiary data related to Yahoo messenger and Yahoo mail application from Android Devices, we can merely pull or fetch the above mentioned directories leaving rest of the directories intact. This application will provide an elaborate view of all the available "1mobile yahoo dating" on the internal memory of the device.

This will allow us access into the root directories of the internal memory. File system acquisition of unrooted devices: This section focuses on representation of the outcome of the experiments 1mobile yahoo dating. These SQLite databases are lightweight databases for mobiles for stories important entries and tuples in tabular form. Table 3 shows the different artifacts found in different database files mentioning particular table.

Timestamps are forensically very important 1mobile yahoo dating they help in establishing the timeline of when the conversation happened. This may provide valuable leads regarding the time at which the conversation occurred. Apart from the two databases discussed above, the other three databases did not provide any data that could be important from a forensic investigation perspective.

We could recover snippets of emails sent or received along with their source and destination email addresses. Such information could come in handy when a case requires proof of the mail being sent or received. The user name or email 1mobile yahoo dating used to login to the messenger client and the password associated with that user id could also be recovered on specific devices i.

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