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Course Instructor: Ashish Revar

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Fundamentals of Malware Analysis
LearnREMAUnit 28

Topic 2.8 of Fundamentals of Malware Analysis

OS-Level Exploit Mitigations

ASLR, DEP, and stack canaries — the mechanism behind each mitigation, entropy levels by architecture, bypass techniques (ROP chains, info leaks), and why analysts need to recognise these patterns.

~25 min total·4 quadrants of structured content

By the end of this topic, you will

  • Explain how ASLR defeats hardcoded jump addresses and why 32-bit entropy is weaker
  • Describe four ASLR bypass techniques with their mechanisms
  • Explain how DEP prevents shellcode execution using the NX/XD bit
  • Describe how a ROP chain bypasses DEP without injecting new code
  • Explain the stack canary mechanism and what is required to bypass it
  • Explain why ASLR and DEP are most effective when used together
Q1 · E-TUTORIAL (1)Q2 · E-CONTENT (1)Q3 · WEB RESOURCES (8)Q4 · SELF-ASSESSMENT (2)

Quadrant 1 · e-Tutorial

Video lectures and walkthroughs

Quick Bite

Quadrant 2 · e-Content

Articles and case studies

Education

OS-Level Exploit Mitigations

How ASLR, DEP, and stack canaries make exploitation harder — the mechanism behind each mitigation, its known bypass techniques, and why understanding them helps analysts recognise evasion in the wild.

16 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

Malware Blueprints in Portable Executable Headers

A deep dive into the Portable Executable (PE) structure used by Windows binaries — how analysts decode executable metadata to uncover malicious intent, compiler behaviour, packing indicators, and execution flow.

Listen now

External links

MITRE ATT&CK — Exploitation for Client Execution (T1203)

ATT&CK technique covering exploitation of software vulnerabilities including mitigation bypass techniques used in the wild.

checksec — Verify Binary Mitigations

Script that checks which mitigations (ASLR, DEP, stack canary, PIE) are enabled in a binary. Run on any PE to assess hardening.

ROPgadget — ROP Chain Builder

Automated tool that finds ROP gadgets in binaries. Run against loaded DLLs to understand how ROP bypasses DEP in practice.

Quadrant 4 · Self-Assessment

Test your knowledge — earn a certificate on first pass

Fundamentals of Malware Analysis

Covers the analysis environment, PE file structure, static property examination, behavioural analysis, and dynamic code analysis of Windows executables.

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%