SlideShare a Scribd company logo
1 of 21
www.SecurityXploded.com
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
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
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
Who am I #1
Amit Malik (sometimes DouBle_Zer0,DZZ)
     Member SecurityXploded & Garage4Hackers
     Security Researcher
     RE, Exploit Analysis/Development, Malware Analysis
     Email: m.amit30@gmail.com




                            www.SecurityXploded.com
Who am I #2
Swapnil Pathak
      Member SecurityXploded
      Security Researcher
      RE, Malware Analysis, Network Security
      Email: swapnilpathak101@gmail.com




                         www.SecurityXploded.com
Windows Architecture




        www.SecurityXploded.com
Memory Management
   Virtual Memory

-   An invisible layer between a software and physical memory

-   Every process first get loaded into its virtual memory address space

-   Small units called “pages” are used to do mapping between physical memory
    and virtual memory.

   Paging

-   Memory management scheme that stores and retrieves data from secondary
    storage for use in main memory

-   Uses same size blocks called pages

-   Page table is used to translate virtual addresses in physical memory
    addresses
                                www.SecurityXploded.com
Memory Management Cont.
   User Address Space

-   Allocated for user mode applications.

-   All processes execute in their own virtual space.

-   Use operating system dlls to interact with kernel

   Kernel Address Space

-   Strictly reserved for kernel, device drivers and operating system
    executive.

-   No user mode application can directly interact with the kernel.




                               www.SecurityXploded.com
Kernel & User Address Space




            www.SecurityXploded.com
Process and Thread
   Process
-   Executing instance of an application.
-   Isolated address space
-   PEB data structure store information about process
-   PEB is an user space data structure
   Threads
-   Multiple threads share the same address space in the process.
-   Each process has at least a single executing thread.
-   TEB data structure store information about thread


                              www.SecurityXploded.com
PEB (Process Environment Block)
 An opaque data structure that store information about process
 in user space




                           www.SecurityXploded.com
PEB Cont.




   www.SecurityXploded.com
TEB (Thread Environment Block)
TEB is a data structure that store information about thread




                             www.SecurityXploded.com
Application Programming Interface
   API
-   Includes functions, classes, data structures and variables
-   Interface between various software components to communicate
    with each other.
-   Windows APIs are used to interact with kernel or other modules.
   MSDN
-   Provides documentation for various API functions.
   System Dlls
-   ntdll.dll, kernel32.dll, user32.dll, advapi32.dll, hal.dll etc



                                   www.SecurityXploded.com
System Service Dispatching




         www.SecurityXploded.com
System Service Dispatching Cont.




            www.SecurityXploded.com
Important API
   File and Directories

-   CreateFile, GetSystemDirectory, ReadFile, WriteFile etc

   Network

-   socket, send, recv, URLDownloadToFile etc

   Registry

-   RegOpenKey, RegSetValue, RegQueryValue etc




                             www.SecurityXploded.com
Important API Cont.
   Processes, Threads, Synchronization using mutex, semaphore.

-   CreateProcess, ReadProcessMemory,

    WriteProcessMemory,CreateRemoteThread, CreateMutex etc

   Memory

-   VirtualAlloc, VirtualProtect ,HeapAlloc, LocalAlloc etc




                              www.SecurityXploded.com
Reference
   Complete Reference Guide for Reversing & Malware
    Analysis Training




                           www.SecurityXploded.com
Thank You !



http://SecurityXploded.com

More Related Content

What's hot

What's hot (20)

Reversing & Malware Analysis Training Part 9 - Advanced Malware Analysis
Reversing & Malware Analysis Training Part 9 -  Advanced Malware AnalysisReversing & Malware Analysis Training Part 9 -  Advanced Malware Analysis
Reversing & Malware Analysis Training Part 9 - Advanced Malware Analysis
 
Advanced Malware Analysis Training Session 3 - Botnet Analysis Part 2
Advanced Malware Analysis Training Session 3 - Botnet Analysis Part 2Advanced Malware Analysis Training Session 3 - Botnet Analysis Part 2
Advanced Malware Analysis Training Session 3 - Botnet Analysis Part 2
 
Anti-Virus Evasion Techniques and Countermeasures
Anti-Virus Evasion Techniques and CountermeasuresAnti-Virus Evasion Techniques and Countermeasures
Anti-Virus Evasion Techniques and Countermeasures
 
Advanced Malware Analysis Training Session 4 - Anti-Analysis Techniques
Advanced Malware Analysis Training Session 4 - Anti-Analysis TechniquesAdvanced Malware Analysis Training Session 4 - Anti-Analysis Techniques
Advanced Malware Analysis Training Session 4 - Anti-Analysis Techniques
 
Advanced Malware Analysis Training Session 7 - Malware Memory Forensics
Advanced Malware Analysis Training Session 7  - Malware Memory ForensicsAdvanced Malware Analysis Training Session 7  - Malware Memory Forensics
Advanced Malware Analysis Training Session 7 - Malware Memory Forensics
 
Anatomy of Exploit Kits
Anatomy of Exploit KitsAnatomy of Exploit Kits
Anatomy of Exploit Kits
 
Reversing & Malware Analysis Training Part 13 - Future Roadmap
Reversing & Malware Analysis Training Part 13 - Future RoadmapReversing & Malware Analysis Training Part 13 - Future Roadmap
Reversing & Malware Analysis Training Part 13 - Future Roadmap
 
Reversing & Malware Analysis Training Part 4 - Assembly Programming Basics
Reversing & Malware Analysis Training Part 4 - Assembly Programming BasicsReversing & Malware Analysis Training Part 4 - Assembly Programming Basics
Reversing & Malware Analysis Training Part 4 - Assembly Programming Basics
 
Advanced malware analysis training session 7 malware memory forensics
Advanced malware analysis training session 7 malware memory forensicsAdvanced malware analysis training session 7 malware memory forensics
Advanced malware analysis training session 7 malware memory forensics
 
Reversing & Malware Analysis Training Part 6 - Practical Reversing (I)
Reversing & Malware Analysis Training Part 6 -  Practical Reversing (I)Reversing & Malware Analysis Training Part 6 -  Practical Reversing (I)
Reversing & Malware Analysis Training Part 6 - Practical Reversing (I)
 
Advanced malwareanalysis training session2 botnet analysis part1
Advanced malwareanalysis training session2 botnet analysis part1Advanced malwareanalysis training session2 botnet analysis part1
Advanced malwareanalysis training session2 botnet analysis part1
 
Advanced Malware Analysis Training Session 11 - (Part 2) Dissecting the Heart...
Advanced Malware Analysis Training Session 11 - (Part 2) Dissecting the Heart...Advanced Malware Analysis Training Session 11 - (Part 2) Dissecting the Heart...
Advanced Malware Analysis Training Session 11 - (Part 2) Dissecting the Heart...
 
Advanced malware analysis training session5 reversing automation
Advanced malware analysis training session5 reversing automationAdvanced malware analysis training session5 reversing automation
Advanced malware analysis training session5 reversing automation
 
Hunting Rootkit From the Dark Corners Of Memory
Hunting Rootkit From the Dark Corners Of MemoryHunting Rootkit From the Dark Corners Of Memory
Hunting Rootkit From the Dark Corners Of Memory
 
Reversing malware analysis training part6 practical reversing
Reversing malware analysis training part6 practical reversingReversing malware analysis training part6 practical reversing
Reversing malware analysis training part6 practical reversing
 
Reversing malware analysis training part11 exploit development advanced
Reversing malware analysis training part11 exploit development advancedReversing malware analysis training part11 exploit development advanced
Reversing malware analysis training part11 exploit development advanced
 
Reversing malware analysis training part3 windows pefile formatbasics
Reversing malware analysis training part3 windows pefile formatbasicsReversing malware analysis training part3 windows pefile formatbasics
Reversing malware analysis training part3 windows pefile formatbasics
 
Automating Malware Analysis
Automating Malware AnalysisAutomating Malware Analysis
Automating Malware Analysis
 
Reversing malware analysis trainingpart9 advanced malware analysis
Reversing malware analysis trainingpart9 advanced malware analysisReversing malware analysis trainingpart9 advanced malware analysis
Reversing malware analysis trainingpart9 advanced malware analysis
 
Reversing malware analysis training part7 unpackingupx
Reversing malware analysis training part7 unpackingupxReversing malware analysis training part7 unpackingupx
Reversing malware analysis training part7 unpackingupx
 

Similar to Reversing & malware analysis training part 2 introduction to windows internals

Reversing & malware analysis training part 2 introduction to windows internals
Reversing & malware analysis training part 2   introduction to windows internalsReversing & malware analysis training part 2   introduction to windows internals
Reversing & malware analysis training part 2 introduction to windows internals
Abdulrahman Bassam
 
Reversing & malware analysis training part 12 rootkit analysis
Reversing & malware analysis training part 12   rootkit analysisReversing & malware analysis training part 12   rootkit analysis
Reversing & malware analysis training part 12 rootkit analysis
Abdulrahman Bassam
 
Reversing & malware analysis training part 3 windows pe file format basics
Reversing & malware analysis training part 3   windows pe file format basicsReversing & malware analysis training part 3   windows pe file format basics
Reversing & malware analysis training part 3 windows pe file format basics
Abdulrahman Bassam
 
Design Decisions For Understanding Software Architecture
Design Decisions For Understanding Software ArchitectureDesign Decisions For Understanding Software Architecture
Design Decisions For Understanding Software Architecture
Tiffany Graham
 
Reversing & malware analysis training part 5 reverse engineering tools basics
Reversing & malware analysis training part 5   reverse engineering tools basics Reversing & malware analysis training part 5   reverse engineering tools basics
Reversing & malware analysis training part 5 reverse engineering tools basics
Abdulrahman Bassam
 
My first Operating System Presentation
My first Operating System PresentationMy first Operating System Presentation
My first Operating System Presentation
Rida Bilgrami
 
Reversing & malware analysis training part 10 exploit development basics
Reversing & malware analysis training part 10   exploit development basicsReversing & malware analysis training part 10   exploit development basics
Reversing & malware analysis training part 10 exploit development basics
Abdulrahman Bassam
 
amrapali builders@@@@hacking windows internals.pdf
amrapali builders@@@@hacking windows internals.pdfamrapali builders@@@@hacking windows internals.pdf
amrapali builders@@@@hacking windows internals.pdf
amrapalibuildersreviews
 
Developing Plug-Ins for NetBeans
Developing Plug-Ins for NetBeansDeveloping Plug-Ins for NetBeans
Developing Plug-Ins for NetBeans
elliando dias
 

Similar to Reversing & malware analysis training part 2 introduction to windows internals (20)

Reversing & malware analysis training part 2 introduction to windows internals
Reversing & malware analysis training part 2   introduction to windows internalsReversing & malware analysis training part 2   introduction to windows internals
Reversing & malware analysis training part 2 introduction to windows internals
 
Reversing malware analysis training part2 introduction to windows internals
Reversing malware analysis training part2 introduction to windows internalsReversing malware analysis training part2 introduction to windows internals
Reversing malware analysis training part2 introduction to windows internals
 
Reversing & malware analysis training part 12 rootkit analysis
Reversing & malware analysis training part 12   rootkit analysisReversing & malware analysis training part 12   rootkit analysis
Reversing & malware analysis training part 12 rootkit analysis
 
Reversing & malware analysis training part 3 windows pe file format basics
Reversing & malware analysis training part 3   windows pe file format basicsReversing & malware analysis training part 3   windows pe file format basics
Reversing & malware analysis training part 3 windows pe file format basics
 
Advanced malware analysis training session8 introduction to android
Advanced malware analysis training session8 introduction to androidAdvanced malware analysis training session8 introduction to android
Advanced malware analysis training session8 introduction to android
 
Design Decisions For Understanding Software Architecture
Design Decisions For Understanding Software ArchitectureDesign Decisions For Understanding Software Architecture
Design Decisions For Understanding Software Architecture
 
Ch11
Ch11Ch11
Ch11
 
Ch11 system administration
Ch11 system administration Ch11 system administration
Ch11 system administration
 
12 core technologies you should learn, love, and hate to be a 'real' technocrat
12 core technologies you should learn, love, and hate to be a 'real' technocrat12 core technologies you should learn, love, and hate to be a 'real' technocrat
12 core technologies you should learn, love, and hate to be a 'real' technocrat
 
CS9222 Advanced Operating System
CS9222 Advanced Operating SystemCS9222 Advanced Operating System
CS9222 Advanced Operating System
 
Advanced Malware Analysis Training Session 8 - Introduction to Android
Advanced Malware Analysis Training Session 8 - Introduction to AndroidAdvanced Malware Analysis Training Session 8 - Introduction to Android
Advanced Malware Analysis Training Session 8 - Introduction to Android
 
Reversing & malware analysis training part 5 reverse engineering tools basics
Reversing & malware analysis training part 5   reverse engineering tools basics Reversing & malware analysis training part 5   reverse engineering tools basics
Reversing & malware analysis training part 5 reverse engineering tools basics
 
Linux Assignment 3
Linux Assignment 3Linux Assignment 3
Linux Assignment 3
 
Anatomy of a Drupal Hack - TechKnowFile 2014
Anatomy of a Drupal Hack - TechKnowFile 2014Anatomy of a Drupal Hack - TechKnowFile 2014
Anatomy of a Drupal Hack - TechKnowFile 2014
 
My first Operating System Presentation
My first Operating System PresentationMy first Operating System Presentation
My first Operating System Presentation
 
Reversing & malware analysis training part 10 exploit development basics
Reversing & malware analysis training part 10   exploit development basicsReversing & malware analysis training part 10   exploit development basics
Reversing & malware analysis training part 10 exploit development basics
 
amrapali builders@@@@hacking windows internals.pdf
amrapali builders@@@@hacking windows internals.pdfamrapali builders@@@@hacking windows internals.pdf
amrapali builders@@@@hacking windows internals.pdf
 
Developing Plug-Ins for NetBeans
Developing Plug-Ins for NetBeansDeveloping Plug-Ins for NetBeans
Developing Plug-Ins for NetBeans
 
DDD17 - Web Applications Automated Security Testing in a Continuous Delivery...
 DDD17 - Web Applications Automated Security Testing in a Continuous Delivery... DDD17 - Web Applications Automated Security Testing in a Continuous Delivery...
DDD17 - Web Applications Automated Security Testing in a Continuous Delivery...
 
Top 20 Asp.net interview Question and answers
Top 20 Asp.net interview Question and answersTop 20 Asp.net interview Question and answers
Top 20 Asp.net interview Question and answers
 

More from securityxploded

More from securityxploded (20)

Fingerprinting healthcare institutions
Fingerprinting healthcare institutionsFingerprinting healthcare institutions
Fingerprinting healthcare institutions
 
Hollow Process Injection - Reversing and Investigating Malware Evasive Tactics
Hollow Process Injection - Reversing and Investigating Malware Evasive TacticsHollow Process Injection - Reversing and Investigating Malware Evasive Tactics
Hollow Process Injection - Reversing and Investigating Malware Evasive Tactics
 
Buffer Overflow Attacks
Buffer Overflow AttacksBuffer Overflow Attacks
Buffer Overflow Attacks
 
Malicious Client Detection Using Machine Learning
Malicious Client Detection Using Machine LearningMalicious Client Detection Using Machine Learning
Malicious Client Detection Using Machine Learning
 
Understanding CryptoLocker (Ransomware) with a Case Study
Understanding CryptoLocker (Ransomware) with a Case StudyUnderstanding CryptoLocker (Ransomware) with a Case Study
Understanding CryptoLocker (Ransomware) with a Case Study
 
Linux Malware Analysis using Limon Sandbox
Linux Malware Analysis using Limon SandboxLinux Malware Analysis using Limon Sandbox
Linux Malware Analysis using Limon Sandbox
 
Introduction to SMPC
Introduction to SMPCIntroduction to SMPC
Introduction to SMPC
 
Breaking into hospitals
Breaking into hospitalsBreaking into hospitals
Breaking into hospitals
 
Bluetooth [in]security
Bluetooth [in]securityBluetooth [in]security
Bluetooth [in]security
 
Basic malware analysis
Basic malware analysisBasic malware analysis
Basic malware analysis
 
Reverse Engineering Malware
Reverse Engineering MalwareReverse Engineering Malware
Reverse Engineering Malware
 
DLL Preloading Attack
DLL Preloading AttackDLL Preloading Attack
DLL Preloading Attack
 
Partial Homomorphic Encryption
Partial Homomorphic EncryptionPartial Homomorphic Encryption
Partial Homomorphic Encryption
 
Return Address – The Silver Bullet
Return Address – The Silver BulletReturn Address – The Silver Bullet
Return Address – The Silver Bullet
 
Defeating public exploit protections (EMET v5.2 and more)
Defeating public exploit protections (EMET v5.2 and more)Defeating public exploit protections (EMET v5.2 and more)
Defeating public exploit protections (EMET v5.2 and more)
 
Hunting Ghost RAT Using Memory Forensics
Hunting Ghost RAT Using Memory ForensicsHunting Ghost RAT Using Memory Forensics
Hunting Ghost RAT Using Memory Forensics
 
Malicious Url Detection Using Machine Learning
Malicious Url Detection Using Machine LearningMalicious Url Detection Using Machine Learning
Malicious Url Detection Using Machine Learning
 
MalwareNet Project
MalwareNet ProjectMalwareNet Project
MalwareNet Project
 
Reversing and Decrypting the Communications of APT Malware (Etumbot)
Reversing and Decrypting the Communications of APT Malware (Etumbot)Reversing and Decrypting the Communications of APT Malware (Etumbot)
Reversing and Decrypting the Communications of APT Malware (Etumbot)
 
Dissecting BetaBot
Dissecting BetaBotDissecting BetaBot
Dissecting BetaBot
 

Recently uploaded

EIS-Webinar-Prompt-Knowledge-Eng-2024-04-08.pptx
EIS-Webinar-Prompt-Knowledge-Eng-2024-04-08.pptxEIS-Webinar-Prompt-Knowledge-Eng-2024-04-08.pptx
EIS-Webinar-Prompt-Knowledge-Eng-2024-04-08.pptx
Earley Information Science
 
CNv6 Instructor Chapter 6 Quality of Service
CNv6 Instructor Chapter 6 Quality of ServiceCNv6 Instructor Chapter 6 Quality of Service
CNv6 Instructor Chapter 6 Quality of Service
giselly40
 

Recently uploaded (20)

[2024]Digital Global Overview Report 2024 Meltwater.pdf
[2024]Digital Global Overview Report 2024 Meltwater.pdf[2024]Digital Global Overview Report 2024 Meltwater.pdf
[2024]Digital Global Overview Report 2024 Meltwater.pdf
 
Finology Group – Insurtech Innovation Award 2024
Finology Group – Insurtech Innovation Award 2024Finology Group – Insurtech Innovation Award 2024
Finology Group – Insurtech Innovation Award 2024
 
2024: Domino Containers - The Next Step. News from the Domino Container commu...
2024: Domino Containers - The Next Step. News from the Domino Container commu...2024: Domino Containers - The Next Step. News from the Domino Container commu...
2024: Domino Containers - The Next Step. News from the Domino Container commu...
 
TrustArc Webinar - Stay Ahead of US State Data Privacy Law Developments
TrustArc Webinar - Stay Ahead of US State Data Privacy Law DevelopmentsTrustArc Webinar - Stay Ahead of US State Data Privacy Law Developments
TrustArc Webinar - Stay Ahead of US State Data Privacy Law Developments
 
Boost PC performance: How more available memory can improve productivity
Boost PC performance: How more available memory can improve productivityBoost PC performance: How more available memory can improve productivity
Boost PC performance: How more available memory can improve productivity
 
Axa Assurance Maroc - Insurer Innovation Award 2024
Axa Assurance Maroc - Insurer Innovation Award 2024Axa Assurance Maroc - Insurer Innovation Award 2024
Axa Assurance Maroc - Insurer Innovation Award 2024
 
Partners Life - Insurer Innovation Award 2024
Partners Life - Insurer Innovation Award 2024Partners Life - Insurer Innovation Award 2024
Partners Life - Insurer Innovation Award 2024
 
08448380779 Call Girls In Diplomatic Enclave Women Seeking Men
08448380779 Call Girls In Diplomatic Enclave Women Seeking Men08448380779 Call Girls In Diplomatic Enclave Women Seeking Men
08448380779 Call Girls In Diplomatic Enclave Women Seeking Men
 
EIS-Webinar-Prompt-Knowledge-Eng-2024-04-08.pptx
EIS-Webinar-Prompt-Knowledge-Eng-2024-04-08.pptxEIS-Webinar-Prompt-Knowledge-Eng-2024-04-08.pptx
EIS-Webinar-Prompt-Knowledge-Eng-2024-04-08.pptx
 
Automating Google Workspace (GWS) & more with Apps Script
Automating Google Workspace (GWS) & more with Apps ScriptAutomating Google Workspace (GWS) & more with Apps Script
Automating Google Workspace (GWS) & more with Apps Script
 
From Event to Action: Accelerate Your Decision Making with Real-Time Automation
From Event to Action: Accelerate Your Decision Making with Real-Time AutomationFrom Event to Action: Accelerate Your Decision Making with Real-Time Automation
From Event to Action: Accelerate Your Decision Making with Real-Time Automation
 
ProductAnonymous-April2024-WinProductDiscovery-MelissaKlemke
ProductAnonymous-April2024-WinProductDiscovery-MelissaKlemkeProductAnonymous-April2024-WinProductDiscovery-MelissaKlemke
ProductAnonymous-April2024-WinProductDiscovery-MelissaKlemke
 
How to Troubleshoot Apps for the Modern Connected Worker
How to Troubleshoot Apps for the Modern Connected WorkerHow to Troubleshoot Apps for the Modern Connected Worker
How to Troubleshoot Apps for the Modern Connected Worker
 
08448380779 Call Girls In Friends Colony Women Seeking Men
08448380779 Call Girls In Friends Colony Women Seeking Men08448380779 Call Girls In Friends Colony Women Seeking Men
08448380779 Call Girls In Friends Colony Women Seeking Men
 
08448380779 Call Girls In Civil Lines Women Seeking Men
08448380779 Call Girls In Civil Lines Women Seeking Men08448380779 Call Girls In Civil Lines Women Seeking Men
08448380779 Call Girls In Civil Lines Women Seeking Men
 
Tech Trends Report 2024 Future Today Institute.pdf
Tech Trends Report 2024 Future Today Institute.pdfTech Trends Report 2024 Future Today Institute.pdf
Tech Trends Report 2024 Future Today Institute.pdf
 
Data Cloud, More than a CDP by Matt Robison
Data Cloud, More than a CDP by Matt RobisonData Cloud, More than a CDP by Matt Robison
Data Cloud, More than a CDP by Matt Robison
 
Understanding Discord NSFW Servers A Guide for Responsible Users.pdf
Understanding Discord NSFW Servers A Guide for Responsible Users.pdfUnderstanding Discord NSFW Servers A Guide for Responsible Users.pdf
Understanding Discord NSFW Servers A Guide for Responsible Users.pdf
 
presentation ICT roal in 21st century education
presentation ICT roal in 21st century educationpresentation ICT roal in 21st century education
presentation ICT roal in 21st century education
 
CNv6 Instructor Chapter 6 Quality of Service
CNv6 Instructor Chapter 6 Quality of ServiceCNv6 Instructor Chapter 6 Quality of Service
CNv6 Instructor Chapter 6 Quality of Service
 

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 & Garage4Hackers  Security Researcher  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  RE, Malware Analysis, Network Security  Email: swapnilpathak101@gmail.com www.SecurityXploded.com
  • 7. Windows Architecture www.SecurityXploded.com
  • 8. Memory Management  Virtual Memory - An invisible layer between a software and physical memory - Every process first get loaded into its virtual memory address space - Small units called “pages” are used to do mapping between physical memory and virtual memory.  Paging - Memory management scheme that stores and retrieves data from secondary storage for use in main memory - Uses same size blocks called pages - Page table is used to translate virtual addresses in physical memory addresses www.SecurityXploded.com
  • 9. Memory Management Cont.  User Address Space - Allocated for user mode applications. - All processes execute in their own virtual space. - Use operating system dlls to interact with kernel  Kernel Address Space - Strictly reserved for kernel, device drivers and operating system executive. - No user mode application can directly interact with the kernel. www.SecurityXploded.com
  • 10. Kernel & User Address Space www.SecurityXploded.com
  • 11. Process and Thread  Process - Executing instance of an application. - Isolated address space - PEB data structure store information about process - PEB is an user space data structure  Threads - Multiple threads share the same address space in the process. - Each process has at least a single executing thread. - TEB data structure store information about thread www.SecurityXploded.com
  • 12. PEB (Process Environment Block) An opaque data structure that store information about process in user space www.SecurityXploded.com
  • 13. PEB Cont. www.SecurityXploded.com
  • 14. TEB (Thread Environment Block) TEB is a data structure that store information about thread www.SecurityXploded.com
  • 15. Application Programming Interface  API - Includes functions, classes, data structures and variables - Interface between various software components to communicate with each other. - Windows APIs are used to interact with kernel or other modules.  MSDN - Provides documentation for various API functions.  System Dlls - ntdll.dll, kernel32.dll, user32.dll, advapi32.dll, hal.dll etc www.SecurityXploded.com
  • 16. System Service Dispatching www.SecurityXploded.com
  • 17. System Service Dispatching Cont. www.SecurityXploded.com
  • 18. Important API  File and Directories - CreateFile, GetSystemDirectory, ReadFile, WriteFile etc  Network - socket, send, recv, URLDownloadToFile etc  Registry - RegOpenKey, RegSetValue, RegQueryValue etc www.SecurityXploded.com
  • 19. Important API Cont.  Processes, Threads, Synchronization using mutex, semaphore. - CreateProcess, ReadProcessMemory, WriteProcessMemory,CreateRemoteThread, CreateMutex etc  Memory - VirtualAlloc, VirtualProtect ,HeapAlloc, LocalAlloc etc www.SecurityXploded.com
  • 20. Reference  Complete Reference Guide for Reversing & Malware Analysis Training www.SecurityXploded.com

Editor's Notes

  1. Picture is taken from : rootkit arsenal
  2. Picture is taken from : RootKit Arsenal (An awesome book)
  3. Picture source: http://www.codeproject.com/KB/system/hide-driver/NtCallScheme_small.png