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Course Instructor: Ashish Revar

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Reversing Malicious Code
LearnREMAUnit 35

Topic 3.5 of Reversing Malicious Code

Code Injection Techniques

Classic DLL injection, reflective DLL injection, process hollowing, and APC injection — API sequences, detection indicators, Volatility plugins for each technique, and analyst countermeasures.

~30 min total·4 quadrants of structured content

By the end of this topic, you will

  • Trace the four-step API sequence for classic DLL injection and identify each detection indicator
  • Explain why reflective DLL injection does not appear in the PEB module list
  • Identify process hollowing from the CREATE_SUSPENDED and NtUnmapViewOfSection API calls
  • Explain the alertable wait state requirement for APC injection and the Early Bird variant
  • Select the correct Volatility plugin to detect each injection technique
  • Set breakpoints in x64dbg to intercept injection at the API level
Q1 · E-TUTORIAL (3)Q2 · E-CONTENT (1)Q3 · WEB RESOURCES (7)Q4 · SELF-ASSESSMENT (2)

Quadrant 1 · e-Tutorial

Video lectures and walkthroughs

Quadrant 2 · e-Content

Articles and case studies

Education

Code Injection Techniques

The four primary code injection techniques — classic DLL injection, reflective DLL injection, process hollowing, and APC injection — with API sequences, detection indicators, and analyst countermeasures.

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 Malicious Process Lifecycle: From Execution to Evasion

How malware executes, establishes persistence, injects into legitimate processes, and evades detection inside modern operating systems.

Listen now

External links

MITRE ATT&CK — Process Injection (T1055)

Full ATT&CK entry for T1055 with all sub-techniques, real-world procedure examples, and detection guidance.

hasherezade — Process Injection Demos on GitHub

Educational C++ implementations of classic DLL injection, process hollowing, and APC injection for lab study.

Quadrant 4 · Self-Assessment

Test your knowledge — earn a certificate on first pass

Reversing Malicious Code

Covers x86 and x64 assembly analysis, control flow graphs, Windows API-level malware behaviour, DLL analysis, injection techniques, API hooking, and Living-off-the-Land attacks.

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%