Digital Forensics in Small Devices: RFID Tag Investigation

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Imager (version 2.9.0.1385), and the physical database files of backend SQL Server were also acquired and hashed with dcfldd tool. In addition, RFID reader’s memory log image was acquired with customized ReaderLogExtraction tool and hashed with md5deep tool during the acquisition phase. In order to preserve the integrity of the collected evidence, all the collected artefacts from each entity of the compromised RFID BS were saved into a forensically sterilized USB destination flash drive (see Appendix 11) as stated in Section 3.3.4 and hashed with EnCase before analysing. Hardware write blocker (Tableau Forensic USB Bridge) was deployed in order to preserve the integrity of the collected evidence data during acquisition and analysis phases (Sections 3.3.5 and 3.3.6). Similarly, the acquisition of evidential data was performed from a trusted customized RFID_IR DVD tool kit in order to minimize the changes to the compromised system during the investigation. Analysing the forensic image copy of forensic investigation. 135
all the collected digital evidence data was in order to maintain and security of the evidence. Finally, the hash values before and after analysis were compared and found exactly the same (see Appendix 22). Hence, the preservation of the digital evidence data was done in a forensically sound manner during the research experiment as the hash values were not changed. SUMMARY: The acquisition and analysis methods of the potential evidence were performed and documented in a forensically sound manner, as stated in Section 4.2 and Section 4.3. MD5 hashing on the acquired data was done by using different forensic tools and techniques. The acquired evidence is credible, reliable and repeatable and acceptable to the court of law as the hash values of collected evidence before and after analysis are precisely the same. Although there are some limitations as stated in the above mentioned argument against, the arguments made for and against prove the hypothesis 9 is to be accepted in this research experiment. Table 5.4: Secondary Research Question 4 and Tested Hypothesis Secondary Question 4: What are the methods to analyze the acquired evidence? Hypothesis 8: The significant evidence can be extracted by analyzing collected data with EnCase forensic software, Windows Forensic Toolchest (WFT), and a hardware write blocker (Tableau Forensic USB Bridge). ARGUMENT FOR: Forensic copy of the collected data was performed by using a hardware write blocker connected to the USP port of the forensic work-station installed with EnCase forensic software (see Appendix 12). Hence, the integrity of ARGUMENT AGAINST: Physical evidence could also be found at the POS given the Tag repository (assuming the poison Tag had not yet been rewritten). Further investigation of the business 136
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Digital Forensics in Small Devices:
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iii Acknowledgements This thesis wa
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v Abstract Read/Write Radio Frequen
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vii Table of Contents (Volume 1) De
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ix 3.2.2.2 The POS Entity Security
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xi 4.3.4 Analysis of the Physical D
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xiii List of Tables Table 2.1 Chara
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Figure 4.3: Error encountered durin
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xvii Figure 4.53: Acquisitions of a
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LF Low Frequency xix LLRP Low Level
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process (see Chalasani, Boppana, &
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of potential evidence after an even
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investigation. Likewise, all the re
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practices concerned with the forens
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defines different types of malware
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2.1.1 RFID Transponders or Tags The
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Table 2.1: Characteristics and Clas
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Moreover, depending on the complexi
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However, according to EPCglobal (El
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According to Harmon (2006, pp. 45-4
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2.2.1 Memory Technologies for RFID
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y the reader as the tag‟s address
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wavelength long and depends on the
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Karygiannis et al., (2007, pp. 2-15
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attacker can perform eavesdropping
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2.5 RFID STOCK MANAGEMENT SECURITY
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Figure 2.15: RFID Business System S
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3.0 INTRODUCTION Chapter 3 - Resear
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etrieve data to an external data so
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firstly affect the back-end RFID mi
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Figure 3.2: Scenario 1 illustration
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Unlike SQL Server forensics, the tr
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forensic workstation must be prepar
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Then, the researcher verified the S
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within the affected records”. In
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can also be found not only in the d
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Likewise, Relevancy is related to t
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3.2 THE RESEARCH DESIGN In the prev
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e investigated for evidence of the
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3.2.2 Review of Problem Areas in RF
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participants, the Information Syste
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3.2.3 Case Study The researcher int
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3.2.6 Research Question As stated i
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3.2.8 Data Map Figure 3.9: Data Map
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software (see Appendix 4) that can
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and Deng (2007) illustrated two eff
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system of the target machine (Jones
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other collected evidence data by us
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SQL Server artefacts (for the purpo
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presence of digital evidence after
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4.0 INTRODUCTION Chapter 4 - Resear
Page 103 and 104: Figure 4.1: Error encountered durin
Page 105 and 106: server (Figure 4.6) due to the user
Page 107 and 108: Section 4.2 include the snippets of
Page 109 and 110: 4.2.2 Live Extraction of Binaries R
Page 111 and 112: 4.2.3.1 Automated Artefact Collecti
Page 113 and 114: 4.2.3.2 Ad Hoc Artefact Collection
Page 115 and 116: 4.2.3.3.1 Active VLF Data After gat
Page 117 and 118: The acquisition result of ring buff
Page 119 and 120: Depending on the version of the vic
Page 121 and 122: syntax was used to acquire a server
Page 123 and 124: :out E:\SystemDatabaseRoleMembers.t
Page 125 and 126: However, according to Fowler (2009,
Page 127 and 128: After collecting the table statisti
Page 129 and 130: Thus, the result of the current tab
Page 131 and 132: 4.2.3.4.6 Data Page Allocation Arte
Page 133 and 134: components of database were enabled
Page 135 and 136: The record of shutting down the ser
Page 137 and 138: “application logic and extend the
Page 139 and 140: 4.2.3.6.5 SQL Server Error Logs Usu
Page 141 and 142: 4.2.4 Physical Disk Drive Finally,
Page 143 and 144: Figure 4.56: Analyzing the image co
Page 145 and 146: could not. Hence, the artefacts cou
Page 147 and 148: 5.0 INTRODUCTION Chapter 5 - Resear
Page 149 and 150: the laboratory to simulate a RFID t
Page 151 and 152: and confirmed the database was obvi
Page 153: SUMMARY: After analysing all the ac
Page 157 and 158: Table 5.5: Secondary Research Quest
Page 159 and 160: write blocker (Tableau Forensic USB
Page 161 and 162: collected digital evidence files (b
Page 163 and 164: 5.2.3 Discussion of Conducted Attac
Page 165 and 166: forensic work-station (Appendix 10)
Page 167 and 168: forensic test-station for the inves
Page 169 and 170: the trusted forensic toolkits. In a
Page 171 and 172: 6.0 INTRODUCTION Chapter 6 - Conclu
Page 173 and 174: Table 6.1: Specific forensic tools
Page 175 and 176: the evidential data are the importa
Page 177 and 178: (Chapter 5; Section 5.3) for both d
Page 179 and 180: Bolan, C. (2007). A single channel
Page 181 and 182: El-Said, M. M., & Woodring, I. (200
Page 183 and 184: Hunt, V. D., Puglia, A., & Puglia,
Page 185 and 186: Kou, D., Zhao, K., Tao, Y., & Kou,
Page 187 and 188: Notes in Computer Science 5379(2009
Page 189 and 190: Tripwire, Inc. (2010a). Tripwire Ma
Page 191 and 192: Digital Forensics in Small Devices:
Page 193 and 194: Appendix 1: Volatile and Non-volati
Page 195 and 196: 3 Activity Endpoints* ● md5deep N
Page 197 and 198: Appendix 2: Steps for Creating Radi
Page 199 and 200: 14. Gather the latest versions of W
Page 201 and 202: The following is the detail record
Page 203 and 204: COMPLETE 'Logins.txt' (md5=A2993744
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(md5=A2993744A56BA83ADE52948062C968
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'Schemas.htm' (md5=30BB65A20F1381D7
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22:02:26: Hashing 'wft_cfg.txt' (md
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Record any checksum(s) below to lat
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22. Although the extended version o
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Appendix 3: Source Code of the Deve
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{ } else { MessageBox.Show("No read
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} } btnConnect.Enabled = true; btnD
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MessageBox.Show(this, "Connection t
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} } } dwNumEntries = usbRFID.GetNum
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add it to the list box LogItem.szID
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if(fdialog.FileName != "") { FileSt
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private string constr = @"Data Sour
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} } else { } catch (Exception ex) {
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} } } } insertTagtoDB(TagID, TagVal
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} break; case ("Protection"): { uiB
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} } } //this.Cursor = Cursors.Defau
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} } btnReadTag.Enabled = false; tmr
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private void insertTagtoDB(string T
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} } } private void btnLOGload_Click
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Step 4: Then, the Tripwire will per
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Similarly, Tripwire user account sh
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Figure A5.5: Installation of the Tr
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Appendix 6: An Example of the Condu
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Sync” allowing the users to confi
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Figure A6.8: RFID Sync Application
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Figure A6.10: Screenshot of writing
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Step 3: Configure the reader’s Ta
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Step 8: Edit the Tripwire configura
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Step 12: Record of the fictitious l
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Step 16: Similarly, check whether t
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Step 20: Check the primary database
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Appendix 7: Steps taken before the
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insert into rfid_log ( Tag, User_da
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Figure A7.3: Pre-keyed data in the
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Figure A7.7: Pre-keyed data in the
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Figure A7.11: Screenshot of Tripwir
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Step 10: Once Tripwire database was
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Appendix 8: Steps taken after the S
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Step 3: The integrity check was ini
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Figure A8.8: Screenshot of the Trip
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Figure A8.12: Screenshot of the bac
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Figure A9.3: Network Interface Card
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Figure A9.7: Enterprise Version of
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Appendix 10: Screenshots of Forensi
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Appendix 11: Forensically Sterilizi
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Figure A11. 4: Wiping all the secto
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Appendix 12: Steps for Copying and
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Figure A12.6: Acquiring the forensi
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12. However, the acquisition was ca
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15. Then, the original evidence dri
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18. Then, a bad signature file was
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Appendix 13: Artefacts Collected by
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Figure A13.5: Acquired backend SQL
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SQL SERVER - DATABASE SERVER INFORM
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Figure A13.15: Fragment of the acqu
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Figure A13.18: Result of the Acquir
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Figure A13.23: Result of the Acquir
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72CBADAE0A1F9FF34D4A35A9AB26BDB8 Au
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2428169B31C96FE4A767215000AA0008 in
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Appendix 15: WFT Tool Log during th
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06:31:36: Verifying 'sql\runsql.bat
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(md5=A7A43C52521F85BDD6683D9E0E4A00
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(md5=AB700D66945BBC9FBFA34002A808A2
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[DB Configuration] (md5=F416BF7233E
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(md5=FEDD1E9DF1B76C877B8027B62E401B
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06:32:21: Verifying 'xp\mem.exe' OK
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06:32:22: Verifying 'sysinternals\p
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'uptime.htm' (md5=B7456D103CBF5E49F
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'netlgrp.txt' (md5=E6D74D46AECD9692
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06:32:26: Verifying 'cygwin\cygwin1
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'cmdline.txt' (md5=B44C85C704337F00
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06:32:32: Verifying 'netlatency\ser
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06:32:35: Verifying 'diamondcs\ipli
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(md5=BB5127D25439D1B50A305B1CF865FE
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(md5=647578D95B7F3B11B6CCF833E29670
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06:32:41: Verifying 'perl\re.dll' O
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(md5=C4DA0F6D85F641B3E5A0F065AEDB27
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06:33:15: Verifying '2k\res_kit\dum
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[FILE SYSTEM] (md5=E9D558E387FC2208
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06:33:19: Running 'tools\xp\cmd.exe
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06:33:20: Verifying 'tools\xp\cmd.e
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'sys_ini.txt' (md5=B143A6852C9EF93E
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06:33:22: Running 'xp\at.exe' [#132
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06:33:24: Verifying 'microsoft\reg.
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(md5=4380D8F2014A5C35BF59DF30D079F0
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06:34:09: Running 'xp\gpresult.exe'
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06:34:15: Verifying 'microsoft\regd
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06:34:16: Running 'microsoft\reg.ex
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[DONE] SKIPPED (via '-nowrite' para
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'mail.gif' (md5=38477E98FB3ED60B829
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Step 3: The SQL poisoning attack wa
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Appendix 17: Live Acquisition of Ph
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The problem issue was clearly state
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Figure A17.9: Evidence item informa
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Figure A17.13: Successful creation
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Physical Drive Acquisition Report b
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Figure A18.2: Screenshot of the Acq
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Figure A18.4: Screenshots of the Ac
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Figure A19.2b: Screenshot of the In
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Figure A19.5: Screenshot of the lau
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Figure A19.10: Choosing the OS path
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Figure A19.16: Avoiding the tools t
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Figure A19.21a: WFT tool in action
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Figure A19.22b: The acquisition of
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Appendix 20: Extended wftSQL Batchf
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SET /P USERQUESTION=Use currently l
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Appendix 21_Screenshots of Hashing
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Appendix 22: Hash Values Comparison
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DBO_RFIDlog_tblStat_Date.txt Text 4
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IDE_Image.E06 EnCase Image eaa9522a
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Endpoints.htm Web Page d23eef6404ca
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PSLIST.HTM Web Page 79dbea76b982972
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IPXROUTE.HTM Web Page 97d4e1dd9621b
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PSFILE.HTM Web Page d6d58ad5914ef24
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HKLM_RS.HTM Web Page f756a379df8579
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MDM.HTM Web Page a5e04ce095305295ae
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WFT_CFG.TXT Text 1d378b80f8e0e7ea4f
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PCLIP.TXT Text 037130bf88e524d8f61a
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TLIST_V.TXT Text cdf2d49e302522e370
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HUNT.TXT Text 99553ccd8e14cae6db789
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C_hidden.txt Text 5f45b5367c7ed8852
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HKCU_R.TXT Text 9e7b99199b2931e811a
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ARKAR_US.B BASIC Source Code .E01 e
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CollationAndDataType.txt Text 37a07
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RFID_test.md5 45c0868ea943c2171ff35
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errorlog_4.md5 3f7f86d69760b535bd82
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Appendix 23: Analysis of Acquired S
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2010-10-25 12:37:05.56 Server Serve
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2010-10-05 01:22:55.53 Server Detec
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2010-10-07 15:20:54.21 Server Serve
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2010-10-25 12:17:39.26 Server Serve
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2010-10-03 00:59:55.96 Server Dedic
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2010-10-02 00:11:57.85 Server -d C:
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2010-10-02 02:40:05.35 Server SQL S
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2010-10-01 23:20:15.28 Server Dedic
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2010-10-01 23:14:19.50 Server Using
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2010-10-01 23:20:12.40 Server The S
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2010-10-01 23:12:03.65 spid4s Recov
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processed. Likewise, the acquired r
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Figure 24A.3: There is no record in
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