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Course Instructor: Ashish Revar

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Introduction to Malware & Reverse Engineering
LearnREMAUnit 17

Topic 1.7 of Introduction to Malware & Reverse Engineering

The x86 Architecture

The Intel x86 architecture from an analyst perspective: Von Neumann model, CISC design, fetch-decode-execute cycle, eight general-purpose registers, EFLAGS, and little-endian byte ordering.

~30 min total·4 quadrants of structured content

By the end of this topic, you will

  • Explain the Von Neumann model and why it enables code injection attacks
  • Name all eight x86 general-purpose registers with their conventional roles
  • Describe how EAX subdivides into AX, AH, and AL and why malware uses sub-registers
  • Explain the role of EIP and why controlling it is the goal of exploitation
  • Read a hex dump correctly accounting for little-endian byte ordering
  • Trace through the IsDebuggerPresent anti-debug pattern using EFLAGS
Q1 · E-TUTORIAL (2)Q2 · E-CONTENT (1)Q3 · WEB RESOURCES (7)Q4 · SELF-ASSESSMENT (2)

Quadrant 1 · e-Tutorial

Video lectures and walkthroughs

Quick Bite

Quadrant 2 · e-Content

Articles and case studies

Education

The x86 Architecture

The Intel x86 architecture from an analyst perspective — Von Neumann model, CISC design, the fetch-decode-execute cycle, general-purpose registers, EFLAGS, and why understanding these fundamentals enables code injection analysis.

18 min read

Quadrant 3 · Web Resources

Downloadable material and curated external links

Downloadable reference material

EBook

REMA eBook 2026

v1.0

Open resource

Cheatsheet

REMA Cheatsheet 2026

v1.0

Open resource

MCQ Bank

REMA MCQ Bank 2026

v1.0

Open resource

Question Bank

REMA Question Bank 2026

v1.0

Open resource

Featured Podcast

Podcast Episode

The Binary Physics of Memory Corruption

Two experts break down the foundations of malware analysis and reverse engineering — malware taxonomy, x86 architecture, memory layout, and stack manipulation — using simple, real-world analogies.

Listen now

External links

x86 Register Reference — OSDev Wiki

Comprehensive reference for all x86 registers including segment registers, debug registers, and control registers.

Compiler Explorer — See Registers in Use

Write a C function and observe which registers the compiler assigns to each variable. Essential for building register intuition.

Quadrant 4 · Self-Assessment

Test your knowledge — earn a certificate on first pass

Introduction to Malware & Reverse Engineering

Covers malware taxonomy, reverse engineering fundamentals, x86 architecture, debugging concepts, automated analysis tools, and the legality of reverse engineering.

20 questions30 minPass: 60%

REMA Complete Assessment

A comprehensive 120-question assessment covering the entire Reverse Engineering and Malware Analysis curriculum: malware taxonomy and reverse engineering fundamentals, static and dynamic analysis, reversing malicious code, malicious web and document files, in-depth analysis of packed and fileless malware, and self-defending malware techniques.

120 questions90 minPass: 60%