'Boot sector' diaporamas de présentation

Chapter 7. Understanding and Supporting Hard Drives. You Will Learn…. About hard drive technologies How communication with hard drive BIOS is accomplished How a hard drive is logically organized to hold data How to install a hard drive How to troubleshoot hard drives. Hard Drive Technology.

Virus What is a virus ? A virus is a programme that is loaded onto your computer without your knowledge. Most viruses ‘infect’ other programmes by modifying them to contain copies of themselves. Problems caused by viruses

PC bootup. Presented by: Rahul Garg (2003CS10183) Rajat Sahni (2003CS10184) Varun Gulshan(2003CS10191). From power on to Kernel load. PC firmware or BIOS. bootSect.S / Bootloader. Boot loader to kernel. Memory Map at Power up. FREE SPACE. 0x100000. MAPPED TO ROM. 0xA0000.

Week 5 IBS 520. Computer and Online Security. What is a computer security risk ?. Computer crime Any illegal act involving a computer. Event or action that causes loss of or damage to a computer system. Cybercrime Online or Internet-based illegal acts. What is a computer virus ?.

Network+ Guide to Networks, Fourth Edition. Chapter 13 Ensuring Integrity and Availability. What Are Integrity and Availability?. Integrity: soundness of network’s programs, data, services, devices, and connections

Threats to Information Security Part I Sanjay Goel University at Albany, SUNY Fall 2004. Course Outline. > Unit 1: What is a Security Assessment? Definitions and Nomenclature Unit 2: What kinds of threats exist? Malicious Threats (Viruses & Worms) and Unintentional Threats

Classification of Viruses. A Government Report from Gibb, McMillan and Wylie. An Introduction…. A Virus is a program designed to attack, disable or hinder a computer’s processes.

Disk Fundamentals. More than one platter (round cylinders). Websites with interesting info. Putting a Window in a Disk Drive http://www.bit-tech.net/article/66/1 Looking at OLD disk drives http://www.duxcw.com/digest/guides/hd/hd2.htm A 36-GB, 10000 RPM, IBM SCSI server Hard Drive

Metadata Files. Excellent reference: http://www.cs.fsu.edu/~baker/devices/lxr/http/source/linux/fs/ntfs/attrib.h. Metadata Files. The metadata files in NTFS contain information used to implement the file system structure. Their names begin with $ The $ is usually hidden

Computer Systems Security Part I. ET4085 Keamanan Jaringan Telekomunikasi Tutun Juhana School of Electrical Engineering and Informatics Institut Teknologi Bandung.

Rootkits. Students: Jacek Czeszewski and Marcos Verdini Rosa Professor: José Manuel Magalhães Cruz. Introduction How a rootkit works Detection Preventing and Removing Attack damage References. 1. Introduction.

Forensie. A Robot for Google Wave. Mike Mabey CSE 598 – Spring 2010 Nishanth Kotha Venkata. Agenda. Motivation MBR/VBR/Timestamp Analysis Forensie Demo Applications Future work Q & A’s References. Motivation. Google Wave – Collaboration tool Java vs. Python

UNIT 18. Data Security 1. Introduction. Introduction. There are a variety of different crimes that can be committed in computing such as:

UNIT 18. Lecturer: Ghadah Aldehim. Data Security 1. Introduction. Introduction. There are a variety of different crimes that can be committed in computing such as:

Hard disks and floppy disks. Hard disks and floppy disks. Hard disks and floppy disks. Hard disks and floppy disks. Hard disks and floppy disks. Hard disks and floppy disks. The Boot sector of a floppy disk or the start sector of a partition. Hard disks and floppy disks.

Computer Security. Jim Crowley C3 – Crowley Computer Consulting. Apologies. This is long haired, geeky stuff. This is long and boring. This is version 1. The analogies between safe sex and safe computing cannot be ignored. It is getting very difficult to protect older systems.

Sigurnost računala i podataka. Mario Č agalj Sveučilište u Splitu 2013/2014. Malicious Software. Computer Security: Principles and Practice by William Stallings and Lawrie Brown Produced by Mario Čagalj. Malicious Software. P rograms exploiting computing system vulnerabilities

MATRIX. Goal To implement a basic structure of a kernel (generic) incorporating Essential features. Real Mode 16 bit x86 I/O File Handling File system Fat 12 Fat 32. MATRIX Features. Booting Memory Program Execution. Security - protect bin files - encryption - priority level.

CSC 382: Computer Security. Malware. Topic. Types of Malware Trojan Horses Viruses Worms Backdoors Rootkits Self-Protection Mechanisms. Payloads. Malware Interactions. Detecting Malware. Defending against Malware. Types of Malware. Trojan Horse

INTRODUCTION TO COMPUTING. Malware, Grayware & Protection. Malware, Grayware & Protection. OBJECTIVE:. Understand the terms Malware & Grayware Describe the various kinds of Malware & Grayware Explain the life Cycle of Malware Understand why people create viruses?