PPT-Ensuring Operating System Kernel Integrity with

Osck Owen Hofmann Alan Dunn Sangman Kim Indrajit Roy Emmett Witchel UT Austin HP Labs Rootkits are dangerous Adversary exploits insecure system Leave backdoor to facilitate longterm access. Section 2. Shells and System Calls. OSDI 2010. 10/7/10. 2. Finding a Needle in a Haystack: Facebook’s Photo Storage. OSDI 2010. 10/7/10. 3. Results: storage costs reduced 28%; 4x greater. . read throughput. Secure?. By : Hassan AL-. Maksousy. Andrew S. Tanenbaum, . Jorrit . N. Herder, and Herbert . Bos. Abstract. Microkernels. — long . discarded as unacceptable because of their lower . performance compared . Vecchiola. Postdoctoral Research Fellow. csve@unimelb.edu.au. Cloud Computing and Distributed Systems (CLOUDS) Lab . Dept. of Computer Science and Software Engineering. The University of Melbourne. Operating System Architecture. KAIST . CySec. Lab. 1. Contents. About Rootkit. Concept and Methods. Examples. Ubuntu Linux (Network Hiding. ). Windows 7 (File Hiding). Android Rootkit Demonstration (DNS Spoofing). Exercise (Rootkit Detection). CS 3100 Operating-System Structures. 1. Objectives. To describe the services an operating system provides to users, processes, and other systems. To discuss the various ways of structuring an operating system. A program that controls the execution of application programs. An interface between applications and hardware. 2. Operating System Objectives. Convenience. Makes the computer more convenient to use. Efficiency. Samuel T. King, George W. Dunlap,Peter M.Chen. . Presented By,. Rajesh . 1. References. [1] . Virtual . Machines: Supporting Changing Technology and New Applications, ECE Dept. Georgia Tech., November 14, . Department of Computer Science and Engineering, University of Washington. Brian N. . Bershad. , Stefan Savage, . Przemyslaw. . Pardyak. , . Emin. Gun . Sirer. , Marc E. . Fiuczynski. , David Becker, Craig Chambers, Susan Eggers. David Ferry, Chris Gill. Department of Computer Science and Engineering. Washington University, St. Louis MO. davidferry@wustl.edu. 1. Traditional View of Process Execution. However, the kernel is not a traditional process!. Ph. D. Course Work : PHYS 601. Statistics and Computer Applications. Presented By:. Sanjay . Godara. Dept. of Physics & Astrophysics. University of Delhi. WHAT . IS AN OPERATING SYSTEM?. S. oftware . David Ferry, Chris Gill. Department of Computer Science and Engineering. Washington University, St. Louis MO. davidferry@wustl.edu. 1. Traditional View of Process Execution. However, the kernel is not a traditional process!. CSE . 422S . - . Operating . Systems Organization. Washington University in St. Louis. St. Louis, MO 63143. 1. Things Happen: Kernel Oops vs Panic. A kernel . panic. is unrecoverable and results in an instant halt. By Dawson R. . Engler. , M. . Frans. . Kaashoek. ,. James O’Toole Jr.. Presented by Seth Goldstein. EECS 582 – W16. 1. Outline. Traditional Operating System. Exokernel. Implmentation. Kernel Comparisons. . Chapter 2 Operating Systems Structures. Dr. Frank . Li. Review: What does an Operating System do?. Coordinator. :. Manages all resources. Settles conflicting requests for resources. Prevent errors and improper use of the computer.