Secure File Deletion: Going, Going, Gone
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CERIAS Tech Report 2017-5 Deceptive Memory Systems by Christopher N
CERIAS Tech Report 2017-5 Deceptive Memory Systems by Christopher N. Gutierrez Center for Education and Research Information Assurance and Security Purdue University, West Lafayette, IN 47907-2086 DECEPTIVE MEMORY SYSTEMS ADissertation Submitted to the Faculty of Purdue University by Christopher N. Gutierrez In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy December 2017 Purdue University West Lafayette, Indiana ii THE PURDUE UNIVERSITY GRADUATE SCHOOL STATEMENT OF DISSERTATION APPROVAL Dr. Eugene H. Spa↵ord, Co-Chair Department of Computer Science Dr. Saurabh Bagchi, Co-Chair Department of Computer Science Dr. Dongyan Xu Department of Computer Science Dr. Mathias Payer Department of Computer Science Approved by: Dr. Voicu Popescu by Dr. William J. Gorman Head of the Graduate Program iii This work is dedicated to my wife, Gina. Thank you for all of your love and support. The moon awaits us. iv ACKNOWLEDGMENTS Iwould liketothank ProfessorsEugeneSpa↵ord and SaurabhBagchi for their guidance, support, and advice throughout my time at Purdue. Both have been instru mental in my development as a computer scientist, and I am forever grateful. I would also like to thank the Center for Education and Research in Information Assurance and Security (CERIAS) for fostering a multidisciplinary security culture in which I had the privilege to be part of. Special thanks to Adam Hammer and Ronald Cas tongia for their technical support and Thomas Yurek for his programming assistance for the experimental evaluation. I am grateful for the valuable feedback provided by the members of my thesis committee, Professor Dongyen Xu, and Professor Math ias Payer. -
Terms & Conditions
Terms & Conditions “SCS Video Contest 2020” contest (“Contest”) is organized by SCS Software s.r.o. with its registered office in Jihlavská 1558/21, Praha, 14000, Czech Republic, Identification Number 28181301, entered into Commercial Register maintained by Prague City Court, Section C, Insert No. 131111 (“Promoter”). The Contest Page is https://blog.scssoft.com/2020/01/scs-video-contest.html. The Contest is open to individuals aged eighteen (18) years or older, except employees, agents, contractors or consultants of the Promoter and their immediate families, the Promoter's associated companies and anyone else professionally connected with the Contest (“Entrants”). This Contest is void where prohibited by local law. The Contest is only open for players of a legal Steam copy of the game Euro Truck Simulator 2 or American Truck Simulator with an unlimited Steam account. Definition of the Limited Steam User Account is available on https://support.steampowered.com/kb_article.php?ref=3330-IAGK- 7663. There is no entry fee and no additional purchase is necessary to enter the Contest. To participate in the Contest each Entrant shall make a video capturing their play of either (i) Euro Truck Simulator 2 game, DLC Road to Black Sea or (ii) American Truck Simulator game, DLC Washington or Utah (“Video”); Euro Truck Simulator 2 and American Truck Simulator cannot be combined in one Video, Washington and Utah can be combined in one Video. Only one Video per Entrant will be included in the Contest, should an Entrant send more videos, only the one first received will be considered and any subsequent ones will be disregarded. -
File Scavenger User Guide
File Scavenger® Version 3.2 Comprehensive Data Recovery Tool For Microsoft® Windows® 7, Vista, XP, 2008, 2003, 2000 and NT User’s Guide Revision: 4 Date: September 2010 QueTek® Consulting Corporation COPYRIGHT © Copyright 1998-2010. This document contains materials protected by International Copyright Laws. All rights reserved. No part of this manual may be reproduced, transmitted or transcribed in any form and for any purpose without the express written permission of QueTek® Consulting Corporation. TRADEMARKS Companies and products mentioned in this manual are for identification purpose only. Product names or brand names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies. NOTICE Reasonable effort has been made to ensure that the information in this manual is accurate. QueTek® Consulting Corporation assumes no liability for technical inaccuracies, typographical, or other errors contained herein. QueTek® Consulting Corporation provides this manual “as is” without warranty of any kind, either express or implied, including, but not limited to the implied warranties or conditions of merchantability or fitness for a particular purpose. In no event shall QueTek® Consulting Corporation be liable for any loss of profits, or for direct, indirect, special, incidental or consequential damages arising from any defect or error in QueTek® Consulting Corporation’s products or manuals. Information in this manual is subject to change without notice and does not represent a commitment on the part of QueTek® Consulting Corporation. User Guide - ii LICENSE AGREEMENT AND LIMITED WARRANTY READ THE FOLLOWING TERMS AND CONDITIONS CAREFULLY PRIOR TO PURCHASING THE LICENSE CODE TO UNLOCK FILE SCAVENGER®. -
User's Manual Undelete® for Windows
User’s Manual Undelete® for Windows® Up-to-the-minute Data Protection® July 2007 This document describes the installation and operation of the Undelete file recovery solutions. It applies to the Server, Desktop Client, Professional and Home Editions of Undelete and is intended for Windows users and system managers. Revision/Update Information: This is a revised manual Software Versions: Undelete 5.0 Server Edition Undelete 5.0 Professional Edition Undelete 5.0 Home Edition Undelete 5.0 Desktop Client Operating Systems: Windows Server 2003 Windows XP Windows 2000 Diskeeper Corporation, Burbank, California ________________________ July 2007 _________ © 2000 — 2007 by Diskeeper Corporation The Software described in this document is owned by Diskeeper Corporation and is protected by United States copyright laws and international treaty provisions. Therefore, you must treat the Software like any other copyrighted material (e.g. a book or musical recording) except that you may either (a) make one copy of the Software solely for backup or archival purposes, or (b) transfer the Software to a single hard disk provided you keep the original solely for backup or archival purposes. You may not copy the user documentation provided with the Software, except for your own authorized use. RESTRICTED RIGHTS LEGEND The software and documentation are provided with RESTRICTED RIGHTS. Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 or subparagraphs (c)(1) and (2) of the Commercial Computer Software-Restricted Rights at 48 CFR 52.227-19 as applicable. -
USER MANUAL Welcome to American Truck Simulator
USER MANUAL Welcome to American Truck Simulator American Truck Simulator takes you on a journey through the breathtaking landscapes and widely recognized landmarks around the States. American Truck Simulator puts you in the seat of a driver for hire entering the local freight market, making you work your way up to become an owner-operator, and go on to create one of the largest transportation companies in the United States. Getting Started System requirements Minimum System Requirements: Operating system: Windows 7 64-bit Processor: Dual core CPU 2.4 GHz Memory: 4 GB RAM Graphics: GeForce GTS 450-class (Intel HD 4000) Storage: 3 GB available space Recommended System Requirements: Operating system: 7/8.1/10 64-bit Processor: Quad core CPU 3.0 GHz Memory: 6 GB RAM Graphics: GeForce GTX 760-class (2 GB) Storage: 3 GB available space Installation To install American Truck Simulator insert the game DVD into your DVD-ROM drive. Follow the on-screen instructions to complete the set-up process. If installation fails to start automatically, proceed by following these steps: 1. Open My Computer 2. Select and open your DVD-ROM drive 3. Find setup.exe and execute it 4. Follow the on-screen instructions to complete the set-up process Launching American Truck Simulator Start by clicking the “American Truck Simulator” icon on your desktop Creating a Profile To play American Truck Simulator you have to create a profile – a virtual person that will represent you in the game. Choose your name, gender, picture, preferred truck design, a logo and name for your company, confirm and start playing. -
(Electronic) Trash: True Deletion Would Soothe E-Discovery Woes
Minnesota Journal of Law, Science & Technology Volume 7 Issue 2 Article 13 2006 Throwing Out the (Electronic) Trash: True Deletion Would Soothe E-Discovery Woes Andrew Moerke Mason Follow this and additional works at: https://scholarship.law.umn.edu/mjlst Recommended Citation Andrew M. Mason, Throwing Out the (Electronic) Trash: True Deletion Would Soothe E-Discovery Woes, 7 MINN. J.L. SCI. & TECH. 777 (2006). Available at: https://scholarship.law.umn.edu/mjlst/vol7/iss2/13 The Minnesota Journal of Law, Science & Technology is published by the University of Minnesota Libraries Publishing. MASON_FINAL_UPDATED 6/7/2006 6:39:12 PM Throwing Out the (Electronic) Trash: True Deletion Would Soothe E-Discovery Woes * Andrew Moerke Mason Electronic discovery (e-discovery) consumes time, money, and resources like few other aspects of modern-day litigation. Deleted data, metadata, backup data, and other intangible forms of information make e-discovery more complex and contentious than traditional discovery.1 Computer users generate and retain electronic documents with ease, leading to significantly greater amounts of data than in a paper-only world.2 E-discovery’s volume and complexity increase litigation costs and complicate discovery disputes between parties, draining both party and judicial resources. More vexing than other areas of e-discovery, e-discovery of deleted data demands expensive forensic techniques, dampens business productivity, and holds no guarantee of yielding evidence. Parties anguish over whether deleted files on a computer hard drive could contain information critical to a © 2006 Andrew Moerke Mason. * J.D. expected 2007, University of Minnesota Law School; B.S. 1999, University of California, Berkeley. -
Data Erasure on Magnetic Storage
“HENRI COANDA” GERMANY “GENERAL M.R. STEFANIK” AIR FORCE ACADEMY ARMED FORCES ACADEMY ROMANIA SLOVAK REPUBLIC INTERNATIONAL CONFERENCE of SCIENTIFIC PAPER AFASES 2011 Brasov, 26-28 May 2011 DATA ERASURE ON MAGNETIC STORAGE Mihăiţă IVAŞCU Metra, Bucharest, Romania Abstract: User data is left is left on the hard drives removed from computers and storage systems, creating a data security vulnerability that many users are unaware of. This is mostly due the fact that normal “delete” or “format” commands leave data intact on a user computer. The cardinal rule of computer storage design has been to protect user data at all costs. Disk drives supply primary mass storage for computer systems designed to prevent accidental erasure of data. Techniques such as “recycle” folders and “unerase” commands are common ways that operating systems try to prevent accidental sanitization of user data. Deletion of file pointers is standard to speeds data writing, because actual overwriting of file data is far slower. These measures taken to protect and speed access to user data can make that data vulnerable to recovery by unauthorized persons. There is an urgent need for a capability to reliably erase data and prevent access to data from retired computer hard disk drives for security and privacy reasons. Data sanitization needs arise differently depending upon user application. The current work presents standards for data erasure, most important methods of data sanitization of hard disk drives and presents how a customized method of data erasure can be implemented. Keywords: recycle, data sanitization, recovery, security vulnerability 1. INTRODUCTION 2. COMPLETE ERASURE OF USER DATA When a computer is lost or disposed of, active and discarded data typically remains 2.1 Known methods of “deleting” data. -
Encase Forensic Version 6.18.0.59
EnCase Forensic Version 6.18.0.59 Test Results for Deleted File Recovery and Active File Listing Tool (Revised) June 23, 2014 This report was prepared for the Department of Homeland Security Science and Technology Directorate Cyber Security Division by the Office of Law Enforcement Standards of the National Institute of Standards and Technology. For additional information about the Cyber Security Division and ongoing projects, please visit www.cyber.st.dhs.gov. June 2014 Test Results for Deleted File Recovery and Active File Listing Tool: EnCase Forensic Version 6.18.0.59 Revised Contents Introduction ......................................................................................................................... 1 How to Read This Report ................................................................................................... 1 1 Results Summary .......................................................................................................... 2 1.1 FAT ........................................................................................................................ 3 1.2 ExFat ...................................................................................................................... 3 1.3 NTFS ...................................................................................................................... 3 1.4 ext ........................................................................................................................... 3 1.5 HFS+ ..................................................................................................................... -
A Study of Hard Drive Forensics on Consumers' Pcs: Data
A Study of Hard Drive Forensics on Consumers’ PCs: Data Recovery and Exploitation B. Dawn Medlin Appalachian State University Joseph A. Cazier Appalachian State University One of the first actions to take when getting rid of an old personal computer is to remove all of the files that contain identifying and personal information. Individuals can be surprisingly negligent in this effort. Many individuals may also believe that by simply moving their files to the recycle bin and then emptying that bin that all of their programs and files are permanently erased. If personal information is not totally deleted, acts of identity theft can easily occur. Our research study identified the types of information found and/or recovered from hard disk drives on computers that have been donated to charity, sold second-hand, or otherwise donated to other organizations for reuse. Of the fifty-five hard drives studied approximately 300,000 files contained identifiable information. Results showed the need for further training in relation to total file erasure from a hard drive as well as the negative results such as identity theft that can occur due to this lack of training or knowledge. INTRODUCTION Wiping a computer clean is not as easy as it may appear. Just deleting the personal files and emptying the recycle bin is essentially next to useless. The delete function only removes file names from a directory list and makes the sectors the files occupy on the hard drive available for future use. Meanwhile, these files actually continue to exist. To positively prevent data from recovery, disks can be removed from disk drives and broken up, or even ground to microscopic pieces. -
Data Spillage Remediation Techniques in Hadoop
Data Spillage Remediation Techniques in Hadoop Srinivas Jantali, Sunanda Mani College of Computer and Information Science Northeastern University Boston, USA {jantali.s, mani.s}@husky.neu.edu Abstract— Hadoop implements its own file system HDFS to different Hadoop clusters. A situation may arise where the (Hadoop Distributed File System) designed to run on commodity employee accidentally places a classified piece of data on the hardware to store and process large data sets. Data Spillage is a cluster meant for unclassified data. This situation is called data condition where a data set of higher classification is accidentally spillage and threatens the confidentiality of the classified data. stored on a system of lower classification. When deleted, the spilled Hadoop further augments the situation by replicating the data data remains forensically retrievable due to the fact that file across multiple data nodes, since it is designed to do so. The systems implement deletion by merely resetting pointers and spilled data is generally referred to as “dirty data” and the data marking corresponding space as available. The problem is nodes on which the dirty data resides are referred to as “dirty augmented in Hadoop as it is designed to create and store multiple nodes”. copies of same data to ensure high availability, thereby increasing risk to confidentiality of data. This paper proposes three approaches to eliminate such risk. In the first approach, the spilled data is securely overwritten with zero and random fills multiple times at the OS level, to render it forensically irretrievable. In the second approach, the Hadoop inbuilt delete function is enhanced to implement a secure deletion mechanism. -
Bitraser for File User Guide for Version 4
BitRaser for File User Guide for Version 4 Legal Notices | About Stellar | Contact Us 1. General Information 1.1. About BitRaser for File BitRaser for File is a complete solution to maintain your computer privacy by erasing worthless yet sensitive information from your computer. Erased data is beyond recovery. BitRaser for File can be used to erase files/folders, Unused space, and System traces. BitRaser for File erases files & folders completely from hard drive. You can select multiple files/folders at a time for erasure. Once files / folders from the Drive are erased using BitRaser for File no one will ever be able to recover that data. The software allows you to generate and save the certificate for the successful erasure process. In addition, it can erase unused space completely such that all traces of previously stored data will be completely removed. When you delete data from hard drive, the data content is not deleted entirely, instead the space occupied by the data is marked as unused space and the new data is written on that unused space. BitRaser for File also erases all the system traces. Operating systems store records of all activities such as browsing Internet and opening documents constantly. In addition, deleted or formatted data leaves traces on hard drive. Data recovery software use these traces to recover data, making the hard drive inefficient. Extremely secure algorithms which confirm to the US Government DoD standards are used to ensure permanent data deletion. BitRaser for File can use any of the algorithms for erasure process. The software is menu driven, simple to use with an intuitive interface, and requires no prior technical skill. -
New 2021 Catalogue
GTR Racing Simulator. There is no comparison. Since 2010, Abtivan has been offering professional grade GTR simu- lators at an affordable cost available to those in North America (USA, Canada, Mexico) Europe (UK, Germany, France, Italy, Spain) Austra- lia and Japan. Through our license with Microsoft, and financial backing from the Franz Collection, we seek to bring further innovative gaming periph- erals compatible with the GTR framework to market in the near fu- ture. We’d like to welcome you to the GTR family and hope to see you on the track, virtual or otherwise! RS30 Ultra Wheel and V3 Pro 4 GTSF Model / GTS Model ---- 10 Pedals GTM Model ------------------ 5 GT Model / Touring Model 11 GTA-F Model w/ CoolerMas- 6 GTA Lite Model -------------- 12 ter Special Edition - Limited GTA Pro Model -------------- 7 Office Chair ------------------ 13 GTAF Model ----------------- 8 CRJ Model ------------------- 14 GTA Model ------------------ 9 Wholesale Information ------- 15 2 Sold at the following .com retailers: 3 RS30-ULTRA-WHEEL and V3-PRO-PEDALS The Future of GTR Officially licensed by Microsoft, GTR Simulator has created a racing wheel and pedal set that only delivers victories on Xbox and titles such as Forza Motorsport, Forza Horizon, Project Cars, Need For Speed and any and all racing games. Whether you’re a casual gamer looking for that arcade feel or want to lay down some serious track time to compete against the best, GTR Simulator and Microsoft have your back. 4 GTM model It’s a driving experience unlike any other Specifications