Reversing & malware analysis training part 2 introduction to windows internals
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This document provides information about a reversing and malware analysis training program. It introduces the trainers, Amit Malik and Swapnil Pathak, and outlines topics to be covered including Windows architecture, memory management, processes and threads, system APIs, and system service dispatching. The training materials are intended to help students learn reverse engineering and malware analysis techniques.
Reversing & malware analysis training part 2 introduction to windows internals
- 2. Disclaimer The Content, Demonstration, Source Code and Programs presented here is "AS IS" without any warranty or conditions of any kind. Also the views/ideas/knowledge expressed here are solely of the trainer’s only and nothing to do with the company or the organization in which the trainer is currently working. However in no circumstances neither the trainer nor SecurityXploded is responsible for any damage or loss caused due to use or misuse of the information presented here. www.SecurityXploded.com
- 3. Acknowledgement Special thanks to null & Garage4Hackers community for their extended support and cooperation. Thanks to all the trainers who have devoted their precious time and countless hours to make it happen. www.SecurityXploded.com
- 4. Reversing & Malware Analysis Training This presentation is part of our Reverse Engineering & Malware Analysis Training program. Currently it is delivered only during our local meet for FREE of cost. For complete details of this course, visit our Security Training page. www.SecurityXploded.com
- 5. Who am I #1 Amit Malik (sometimes DouBle_Zer0,DZZ) Member SecurityXploded Security Researcher @ McAfee Labs RE, Exploit Analysis/Development, Malware Analysis Email: m.amit30@gmail.com www.SecurityXploded.com
- 6. Who am I #2 Swapnil Pathak Member SecurityXploded Security Researcher @ McAfee Labs RE, Malware Analysis, Network Security Email: swapnilpathak101@gmail.com www.SecurityXploded.com
- 7. Course Q&A Keep yourself up to date with latest security news http://www.securityphresh.com For Q&A, join our mailing list. http://groups.google.com/group/securityxploded www.SecurityXploded.com
- 9. Memory Management Virtual Memory - An invisiblelayerbetween a softwareand physicalmemory - Every process first get loaded into its virtual memory address space - Small units called “pages”are used to do mapping between physicalmemory and virtual memory. Paging - Memory managementschemethat stores and retrieves datafrom secondary storageforuse in main memory - Uses same size blocks called pages - Pagetable is used to translatevirtualaddresses in physicalmemory addresses www.SecurityXploded.com
- 10. Memory Management Cont. UserAddressSpace - Allocatedfor user mode applications. - All processes executein theirown virtual space. - Useoperating system dlls to interact with kernel Kernel AddressSpace - Strictlyreserved forkernel, devicedrivers and operatingsystemexecutive. - No user mode applicationcan directly interactwith thekernel. www.SecurityXploded.com
- 11. Kernel & UserAddress Space www.SecurityXploded.com
- 12. Process and Thread Process - Executinginstanceofan application. - Isolatedaddress space - PEB data structurestoreinformationabout process - PEB is an user space data structure Threads - Multiplethreads sharethe same address spacein the process. - Each process has at least a single executingthread. - TEBdata structurestoreinformation aboutthread www.SecurityXploded.com
- 13. PEB (Process Environment Block) An opaque data structure that store information about process in user space www.SecurityXploded.com
- 15. TEB (Thread Environment Block) TEB is a data structure that store information about thread www.SecurityXploded.com
- 16. Application Programming Interface API - Includesfunctions,classes, datastructures and variables - Interfacebetween varioussoftwarecomponents to communicatewith each other. - WindowsAPIs areused to interact with kernel or othermodules. MSDN - Providesdocumentationforvarious APIfunctions. System Dlls - ntdll.dll, kernel32.dll, user32.dll, advapi32.dll, hal.dll etc www.SecurityXploded.com
- 18. System Service Dispatching Cont. www.SecurityXploded.com
- 19. Important API File and Directories - CreateFile, GetSystemDirectory, ReadFile, WriteFile etc Network - socket, send, recv, URLDownloadToFile etc Registry - RegOpenKey, RegSetValue, RegQueryValue etc www.SecurityXploded.com
- 20. Important API Cont. Processes, Threads, Synchronization using mutex, semaphore. - CreateProcess, ReadProcessMemory, WriteProcessMemory,CreateRemoteThread, CreateMutex etc Memory - VirtualAlloc, VirtualProtect ,HeapAlloc, LocalAlloc etc www.SecurityXploded.com
- 21. Reference Complete Reference Guide for Reversing & Malware Analysis Training www.SecurityXploded.com