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Course Instructor: Ashish Revar

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Examining Self-Defending Malware
LearnREMAUnit 65

Topic 6.5 of Examining Self-Defending Malware

Code Misdirection Techniques

Six code misdirection techniques — opaque predicates, overlapping instructions, indirect jumps, SEH-based hidden flow, TLS callbacks, and Heaven Gate — with static and dynamic bypass for each.

~25 min total·4 quadrants of structured content

By the end of this topic, you will

  • Identify an always-false opaque predicate and patch it in IDA Pro
  • Explain overlapping instruction misdirection and why recursive descent disassemblers handle it better
  • Set up x64dbg scripting to log all targets of an indirect jump
  • Locate SEH-based hidden control flow using the x64dbg SEH Chain view
  • Enable Break on TLS Callback in x64dbg to intercept pre-entry-point execution
  • Apply the bypass matrix to select the correct static and dynamic bypass for each technique
Q1 · E-TUTORIAL (1)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 Misdirection Techniques

How malware corrupts disassembler output and misleads analysts — opaque predicates, SEH-based hidden control flow, overlapping instructions, indirect jumps, and TLS callbacks — with the exact bypass for each.

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 Art of Deception: Unmasking Anti-Analysis & Evasion Techniques

A technical examination of the self-defence mechanisms used by self-defending malware — how threats detect sandboxes, sabotage debuggers, and hide from automated analysis, and how analysts defeat each technique.

Listen now

External links

REMA eBook 2026 — Chapter 6, Code Misdirection

Full opaque predicate and overlapping instruction examples with disassembler comparison in the REMA eBook Chapter 6.

MITRE ATT&CK — Obfuscated Files or Information: Software Packing (T1027.002)

ATT&CK sub-technique covering code obfuscation and misdirection with real-world examples.

Quadrant 4 · Self-Assessment

Test your knowledge — earn a certificate on first pass

Examining Self-Defending Malware

Covers anti-debugging techniques, virtual machine and sandbox detection, protection of embedded data, code misdirection, and advanced unpacking methodologies.

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%